Contra Costa – Air Conditioning, Heating & Ventilation (HVAC)

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  • Areas Served | Services | Key Brands
6575-D Trinity Ct.
Dublin, CA 94568
(925) 837-3321

Serving all of Contra Costa and Alameda counties including Concord, Richmond, Antioch, Danville, Walnut Creek, Oakland, Fremont, Berkeley and Hayward.

Services include air duct cleaning, HVAC repair and installation, heat pumps, furnaces and air conditioners. Brands include Carrier, Trane and York...
License 785008 |
1850 Bates Avenue, Suite A
Concord, CA 94520
(925) 521-1380

Serving all Contra Costa, Alameda, Solano and San Mateo Counties

Services include residential heating & air conditioning, ductwork, repair & upgrades, service & maintenance. Brands include Honeywell, Rheem...
License 855456 |
(925) 444-4444
(916) 777-4444
(408) 777-9444

Serving all of Contra Costa and Alameda counties including Concord, Antioch, Richmond, Walnut Creek, Fremont, Oakland, Berkeley and Hayward.

Services include Air Conditioning, Air Filtration, Duct Inspection and Replacement, Heating, Indoor Air Quality, Repair and Tune-Up, Water Heater Service. Brands include .
License 817040 |
(925) 456-4989

Serving Sonoma, Napa, Solano, Marin, Contra Costa and San Francisco Counties

Services include HVAC installation & repair, heat pumps, air conditioning service, heater repair and HVAC system evaluations. Brands include Trane...
License 740999 | DCID7073484101
Map of these Diamond Certified companies
Cities: Antioch, Brentwood, Clayton, Concord, Danville, El Cerrito, Hercules, Lafayette, Martinez, Moraga, Oakley, Orinda, Pinole, Pittsburg, Pleasant Hill, Richmond, San Pablo, San Ramon, Walnut Creek
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Researched Articles
Why Trust Diamond Certified HVAC Companies Rated Highest in Quality?
Air conditioner and heater repair and installation in Contra Costa County.

An HVAC repairman from a Diamond Certified heating, cooling and ventilation company in Contra Costa County repairs a home heating and cooling system. You'll feel confident choosing an HVAC system service company listed above because each has been rated Highest in Quality and has earned Diamond Certified. Read the following articles for more information on how best to choose and work with a residential HVAC service in Contra Costa County. Photo: Service Champions (2012)

By DIAMOND CERTIFIED PROGRAM STAFF WRITERS
Topic: Finding High Quality Heating and Cooling Service in Contra Costa County

CONCORD — You are the customer. If your goal is to choose an air conditioning, heating and ventilation contractor that will deliver high customer satisfaction and quality, you’ll feel confident in choosing a Diamond Certified HVAC contractor. Each has been rated Highest in Quality in the most accurate ratings process anywhere. And you’re always backed by the Diamond Certified Performance Guarantee. Here’s why the Diamond Certified ratings and certification process will help you find a top-rated HVAC company and is unparalleled in its accuracy, rigor and usefulness:

1) Accuracy: All research is performed by live telephone interviews that verify only real customers are surveyed, so you'll never be fooled by fake reviews.

2) Statistical Reliability: A large random sample of past customers is surveyed on an ongoing basis so the research results you see truly reflect a Diamond Certified company’s top-rated status.

3) Full Disclosure: By clicking the name of a company above you'll see the exact rating results in charts and read verbatim survey responses as well as researched articles on each qualified company.

4) Guaranteed: Your purchase is backed up with mediation and the Diamond Certified Performance Guarantee, so you can choose with confidence.

Click on the name of a Diamond Certified company above to read ratings results, researched articles and verbatim customer survey responses to help you make an informed decision.

More than 200,000 customers of local companies have been interviewed in live telephone calls, and only companies that score Highest in Quality in customer satisfaction–a 90+ on a 100 scale–as well as pass all of the credential-based ratings earn Diamond Certified. By requiring such a high score to qualify, the Diamond Certified program eliminates mediocre and poorly performing companies. Read detailed information about the ratings and certification process.

How to Choose
Steps to Hiring a Good Residential Heating and Cooling Contractor
Residential heating and cooling system installation and repair in Concord, CA.
An HVAC installation technician shares an estimate with a homeowner. Photo: One Hour Heating and Air Conditioning (2012)

You'll get the most benefit from your new HVAC system when the furnace and air conditioner are properly sized for your home and your personal preferences. Customized heating, cooling and ventilation systems run more efficiently and can keep your home more comfortable year-round....

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You'll get the most benefit from your new HVAC system when the furnace and air conditioner are properly sized for your home and your personal preferences. Customized heating, cooling and ventilation systems run more efficiently and can keep your home more comfortable year-round.

The best HVAC contractors in Contra Costa County will give you a home air conditioning and heating installation estimate based on your needs and the square footage of your home. Most will want to see your existing heater and air conditioner before giving you an estimate for new heating and cooling systems, giving you a chance to meet with the contractor in person before signing a contract with them.

Remember, the heating and cooling contractor you choose will be working in and around your home and will have a direct impact on the effectiveness of your new heating and air conditioning system, so make sure you feel comfortable with the company you choose. If cleanliness, friendliness and honesty are important to you, verify that the HVAC company you interview fit these descriptions, and that their employees are held to a high standard.

Choose HVAC Contractors to Install the Best Heating and Air Conditioning Equipment
Good heating, cooling and ventilation systems are an investment. So it's important to hire an HVAC contractor who installs the best heating and cooling systems on the market. Heating and cooling equipment is becoming more complex, so the best HVAC companies will have educated technicians who are skilled at HVAC installation and heating and cooling system repairs.

These home heating and cooling system technicians should be able to answer all of your questions about performance and efficiency. They should also be able to walk you through the range of brands and types of systems to help you make the best choice in a new heating, cooling and ventilation system for your home or business.

Simply buying good HVAC equipment made by the best hearing and air conditioning manufacturers isn't enough. Your HVAC installer needs to know how to install the equipment the right way. Systems that are installed by professional heating and cooling companies may perform better, last longer and be more energy efficient than systems installed by amateur installers.

In fact, some local HVAC contractors are authorized distributors and HVAC installers that have earned certifications from leading heating and air conditioning equipment manufacturers. Many of these cooling and heating companies can simplify the process for you by acting as salesman, contractor and follow-up service providers.

Luckily, there are many Contra Costa County heating and air conditioning repair companies to choose from, including those that serve the major cities of Concord, Antioch, Richmond, Walnut Creek and Pittsburg, as well as all the smaller towns such as Hilltop Mall, Lafayette, Point Richmond, Moraga, Port Costa, North Richmond, Kensington, Knightsen, Oakley, Pacheco, Pinole, Orinda, Port Chicago, Rheem Valley, Rodeo, Tara Hills, Vine Hill and Walnut Heights.

If all-in-one service is important to you, ask the HVAC contractors you interview if they can provide all the services you need for the life of your home heating, cooling and ventilation system.

The Value of Researching HVAC Contractors in Contra Costa County Including Those that Serve Concord, Antioch, Walnut Creek, Richmond, Pittsburg, San Ramon, Brentwood, Danville, Martinez, Pleasant Hill and Your Area
While it's best to choose a Diamond Certified HVAC company because they're rated Highest in Quality, that may not always be possible. If you're unable to choose a Diamond Certified heating and cooling contractor in your area, you can improve your chances of hiring a good heating and cooling company by checking out candidates on the Contractors State License Board website to ensure active license and workers' compensation insurance. Violations will appear on their license record, so you'll know about recent infractions or serious customer grievances that have been reported to the state.

Then verify the furnace and air conditioner companies' credentials. HVAC contractors in the larger cities of Pittsburg, Walnut Creek, Antioch, Concord and Richmond who are members of local organizations and heating and cooling associations may offer better service, and you'll be able to see their past records, including complaints and legal action.

Choose the Contra Costa County HVAC Contractor for You
Now that you've done some initial research, talk with representatives from a few local heating and cooling companies. When you interview HVAC contractors, have a written list of questions and note the answers. Some cooling and heating contractors won't provide estimates over the phone without seeing the job first.

However, don't feel obligated to set an appointment for an in-home estimate if you weren't impressed with your initial contact with the HVAC company. If the local heating and air conditioning contractors you've talked with don't meet your expectations or can't answer your questions about your new air conditioner or furnace satisfactorily, it's your right to end the conversation and move on to the next high-quality heating and air conditioning contractor on your list.

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Know What You Want
Know What You Want from Your New HVAC System

Before you interview any heating, cooling and ventilation system contractors in Contra Costa County, you'll want to have some knowledge about HVAC systems and your heating and cooling needs. Think about the answers to these questions to get you started in the right direction:...

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Before you interview any heating, cooling and ventilation system contractors in Contra Costa County, you'll want to have some knowledge about HVAC systems and your heating and cooling needs. Think about the answers to these questions to get you started in the right direction:

  • Do I want a Diamond Certified company that is rated best in quality and backed by the Diamond Certified Performance Guarantee?
  • What is my budget for new HVAC system or heating and air conditioner repair?
  • What do I like about my current HVAC unit?
  • What would I change about the HVAC system that's currently installed in my house?
  • Are there any specifics that will make this job more complicated than average or need to be considered during the planning phase (i.e. planning an addition to the home, special requests for the brand or type of system installed, location of the job site or a narrow driveway that may make it hard for work trucks to get to the home, a short timeframe, etc.)?
  • Do I plan to live in this home long-term? Or is it a rental property or a house I plan to sell?
  • What qualities or characteristics do I want in a Contra Costa County HVAC contractor?
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What to Ask on the Phone
Interview Good Heating and Cooling Contractors in Contra Costa County

Once you've decided what you want from your new heating and cooling system, talk with a few local HVAC contractors in Contra Costa County and ask them a few questions. You'll get better results if you write down your questions and keep a record of the answers you get from each of the heating and cooling specialists you interview. The following are some sample questions to start the process.

Questions to Ask HVAC Companies Over the Phone...

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Once you've decided what you want from your new heating and cooling system, talk with a few local HVAC contractors in Contra Costa County and ask them a few questions. You'll get better results if you write down your questions and keep a record of the answers you get from each of the heating and cooling specialists you interview. The following are some sample questions to start the process.

Questions to Ask HVAC Companies Over the Phone

  1. Has your company earned and maintained a Diamond Certified rating?
  2. Are you a licensed heating and cooling contractor in Contra Costa County?
  3. What is your state license number?
  4. Do you have liability and workers' compensation insurance?
  5. Are all of your employees covered by your insurance while they're working in my home?
  6. Are you and your employees certified by the EPA to handle Freon refrigerant gas? (This is a legal requirement in the state of California.)
  7. What is your specific experience with new HVAC installations?
  8. I live in _____ (Concord, Richmond, Walnut Creek, San Ramon, Brentwood, Antioch, West County, etc.). Do you charge for local estimates?
  9. If I live in a smaller town such as Antioch, Blackhawk, West Pittsburg, Diablo or Briones, will there be an additional service charge to come to my house?
  10. How do you determine the correct heating and cooling system size? Do you use computerized sizing calculations to ensure my new home heating and air conditioning system is the right size?
  11. Does this HVAC installation or repairs require a permit? If so, will you get the permit, or will I have to get it?
  12. Is there a specific HVAC system brand you recommend (Bryant HVAC systems, Amana Heating & Cooling system, Carrier furnaces, Trane furnaces, York Heating & Cooling, Lennox furnaces, etc.)?
  13. How long has the manufacturer been making the furnaces and air conditioners you install? (A lifetime warranty is worthless if the manufacturer goes out of business.)
  14. Are you authorized by the manufacturer to install new HVAC systems (such as a General Electric Furnace Certified Installer, Certified Kenmore Air Conditioner Installer or Certified Armstrong Heating & Cooling Installer)? Remember: Installation by unapproved contractors could void your manufacturer's warranty.
  15. What guarantees and warranties do you offer on your workmanship and on the air conditioners and heaters?
  16. How long have you been an HVAC contractor in Contra Costa County?
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What to Ask in Person
Questions to Ask Heating, Cooling and Ventilation Companies in Person

The following questions will get you started as you interview local HVAC contractors in person.

Give each Contra Costa County heating and cooling contractor you interview a chance to answer the same questions so you'll be able to compare their answers....

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The following questions will get you started as you interview local HVAC contractors in person.

Give each Contra Costa County heating and cooling contractor you interview a chance to answer the same questions so you'll be able to compare their answers.

  • Do you also recommend new heating and air conditioning ducts, or will the existing ducts work with my new heating and cooling system?
  • How much time will the HVAC job take, from measuring my home and ordering the new heating and air conditioning system to installation?
  • Will my new heating, cooling and ventilation system make my home more comfortable and reduce my electric bills?
  • Do you have any recent projects in my area of Contra Costa County where I can see the completed HVAC installation and talk with the homeowners?
  • Do you have customer references I can call?
  • How would I handle any future service issues? Are you responsible for warranty work if there’s ever a problem with my new HVAC system?
  • What can I do to make the heater and air conditioner purchase / installation process easier?
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What to Ask References
Previous Customers' Experiences with Local Window Contractors in Contra Costa County

It's best to choose a Diamond Certified heating and cooling contractor because all certified companies have passed an in-depth ratings process that most other companies can't pass. If you want quality from a HVAC contractor in Contra Costa County and the greater Bay Area, you can have confidence choosing a Diamond Certified company. Diamond Certified reports are available online for all certified companies. And you'll never be fooled by fake reviews....

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It's best to choose a Diamond Certified heating and cooling contractor because all certified companies have passed an in-depth ratings process that most other companies can't pass. If you want quality from a HVAC contractor in Contra Costa County and the greater Bay Area, you can have confidence choosing a Diamond Certified company. Diamond Certified reports are available online for all certified companies. And you'll never be fooled by fake reviews. That's because all research is performed in live telephone interviews of actual customers.

If you can't find a Diamond Certified HVAC company within reach, you'll have to do some research on your own. If you do, it's wise to call some references provided by the heating and air conditioning companies. Keep in mind, though, that references provided to you by the contractors are not equal in value to the large random sample of customers surveyed during the Diamond Certified ratings process. That's because references given to customers from local HVAC companies are often cherry-picked instead of randomly selected from all their customers. So the contractors will likely give you a few customers to call that they know are satisfied.

If you do call references on your own, specifically ask for a list of the company's 10 most recent customers. This will help avoid them giving you the names of only customers they know were satisfied. Then call several of the references and ask them specific questions about the heating and air conditioning contractor you're considering. Here are a few sample questions:

  1. Were you satisfied with the HVAC installation and the customer service from _(HVAC company name)_?
  2. What type of job did they do for you (HVAC repair, cooling & heating installation, residential air conditioning service, HVAC unit replacement, furnace repair, etc.)?
  3. Did the Contra Costa County heating and cooling contractor you hired complete the work on time?
  4. Did the contractor keep you up-to-date on the status of the project?
  5. Were there unexpected costs? If so, what were they for and were they avoidable?
  6. If you live in a smaller town such as Alamo, Bay Point, Canyon, Pinole, Cowell, Bethel Island or Diablo, did the HVAC company charge extra to travel to your home?
  7. Did the HVAC installers show up on time?
  8. Did they clean up after installing your new furnace or air conditioning system?
  9. If you need a new furnace or HVAC repairs in the future, would you use this contractor again?
  10. Would you recommend them to friends or family?
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Review Your Options
Hire Good Home Heating & Cooling Companies in Contra Costa County

A new HVAC system, furnace or home air conditioner is a big investment that should keep you comfortable for years to come. So before deciding on the best heating and cooling contractor in Contra Costa County for you, consider the following questions and use your interview notes to choose the best HVAC company for you....

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A new HVAC system, furnace or home air conditioner is a big investment that should keep you comfortable for years to come. So before deciding on the best heating and cooling contractor in Contra Costa County for you, consider the following questions and use your interview notes to choose the best HVAC company for you.

  • Can a local heating and cooling contractor in Contra Costa County meet your needs in terms of products, scheduling, installation and service?
  • Are the Contra Costa County HVAC company representatives knowledgeable on the furnaces and air conditioners they install? Can they tell you which brands and systems best meet your needs and why (i.e. energy efficient furnaces, high-efficiency air conditioners, new furnace installation, Trane HVAC systems, Carrier heaters and AC systems, etc.)
  • Is the HVAC installer sensitive to your budget? Can they offer various brands and heating and cooling systems to fit your needs? Most heating and cooling companies can give you bids for good, better and best options that give you more control over the price and efficiency of your new furnace and air conditioner.
  • Do the written warranties and guarantees protect you and your new heating, cooling and ventilation system?
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How to Work With
Get the Most Value from Your New HVAC System

Most homeowners want the best value from their new HVAC system. But sacrificing quality to save money on a new heating and cooling system may defeat the long-term value you can get from a high-quality, efficient HVAC system installed by experienced and skilled heating and air conditioning professionals.

To help encourage good HVAC contractors in Contra Costa County to bid on your job, remember:...

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Most homeowners want the best value from their new HVAC system. But sacrificing quality to save money on a new heating and cooling system may defeat the long-term value you can get from a high-quality, efficient HVAC system installed by experienced and skilled heating and air conditioning professionals.

To help encourage good HVAC contractors in Contra Costa County to bid on your job, remember:

  • Look for good value, not just the lowest price. The first question most homeowners ask heating and cooling companies is how much their new furnace and air conditioner will cost, so it's important to show them you understand the significance of quality products, skilled installation and long-term value.
  • Be upfront with heating and cooling companies if you're interviewing other local HVAC contractors, but assure them that you're accepting three fair bids, not dozens of lowball bids.
  • Shop among local heating and cooling companies in Contra Costa County. Most HVAC installers like to work in the local area because it allows them to provide better service in a more timely manner. Shopping locally shows contractors you're not looking for cheap HVAC installations, as some fly-by-night furnace and air conditioning services travel long distances to install discounted products that local contractors may not be able to compete with price-wise.
  • Take the long view when purchasing HVAC equipment. Investing in a quality system and having it installed by professional tradesmen can save you more money in the long run than buying a cheaper system or hiring discount HVAC installers.
  • Remember that the installation can be as important to the long-term reliability and functionality of your heating, cooling and ventilation system. Even the best systems require proper installation and maintenance to operate safely and at maximum efficiency.

Request a Written Estimate and Contract from Your Contra Costa County Heating and Cooling Specialist
When you've found a Contra Costa County heating and cooling company that meets all of your requirements, it's time to sort out the details. Ask for a written estimate and contract that includes a confirmation of the brand and quality of your new HVAC system, any installation details, the price of the system and the labor for installation, and any applicable warranties and HVAC maintenance agreements. You should also get in writing a timeline that details the job start date, major milestones and the expected final installation date.

You may also write in any additional requests or items you and the heating and cooling company representative verbally have agreed upon. Once you're happy with the contract and understand all the terms of the agreement, you can sign with confidence.

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Check the Work
Review Your HVAC Service Invoice with Your Local Heating and Cooling Contractor

Once your HVAC system is installed, your heating and cooling professional should supply you with a written invoice. This invoice generally will list:...

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Once your HVAC system is installed, your heating and cooling professional should supply you with a written invoice. This invoice generally will list:

  • The name, physical address and license number of the heating and cooling contractor.
  • A list of all HVAC work performed.
  • An itemized list of the new furnace, air conditioner and ventilation system installed and any replacement parts needed.
  • The total heating and cooling unit installation cost, including an itemized amount due for labor.
  • Any applicable warrantees or guarantees.

Once you've reviewed the invoice, it's smart to compare the work that was actually done to the written document. Ask your cooling and heating contractor to show you the new system installation or HVAC repairs that were done. Check the products and work against the line-item invoice. This is also a good time to have the furnace contractor explain the HVAC unit to you in detail and show you the best steps to take in running and maintaining your new system. If you have questions about the work that was done or any items that seem to be missing or in conflict with your written contract or invoice, this is the time to ask your contractor.

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Written Warranties
Ask Contra Costa County HVAC Contractors for Written Warranties and Care Instructions

Before your heating and cooling contractor leaves the job, confirm with them any warranties and guarantees you've agreed upon. Not all HVAC companies in Contra Costa County offer warranties on their work and products. But if the company you've chosen does, they should give you a written warranty that includes:...

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Before your heating and cooling contractor leaves the job, confirm with them any warranties and guarantees you've agreed upon. Not all HVAC companies in Contra Costa County offer warranties on their work and products. But if the company you've chosen does, they should give you a written warranty that includes:

  • The HVAC contractor's name and physical business address.
  • What heating and cooling products and work are covered, including whether the contractor will replace or repair your heating and cooling system or give you a refund if you place a warranty claim.
  • Your responsibility if you need warranty work or a replacement furnace or air conditioner (i.e., if you have to pay for labor when filing a claim for warranty work or pay a prorated amount).
  • Terms of and limitations on the new HVAC unit warranty.
  • If the new HVAC system warranty coverage is transferrable to the new owner if you sell your home.
  • Any exclusions to the warranty must be in writing.

You should also ask for written care and handling instructions for your new air conditioner and furnace, including when to change air filters and how to handle service issues. Knowing what steps you should take to preserve your unit can help keep it running and efficient for years to come.

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Top 10 Requests
Top Service Requests Asked of Contra Costa County HVAC Contractors and Air Conditioner Repair Services

The most common air conditioning, heating and ventilation system repairs and services are listed below for your convenience. We've also included a list of the most popular brands of HVAC units available in Contra Costa County, including in the larger cities of Concord, Richmond, Antioch, Walnut Creek, Pittsburg, San Ramon, Danville, Brentwood, Martinez and Pleasant Hill and the greater Bay Area....

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The most common air conditioning, heating and ventilation system repairs and services are listed below for your convenience. We've also included a list of the most popular brands of HVAC units available in Contra Costa County, including in the larger cities of Concord, Richmond, Antioch, Walnut Creek, Pittsburg, San Ramon, Danville, Brentwood, Martinez and Pleasant Hill and the greater Bay Area.

AC Repair (Air Conditioner Repair)
Contra Costa County HVAC contractors perform residential air conditioner repairs to fix broken AC units, replace failing air conditioner parts, upgrade air conditioners with new parts that are more energy efficient and prepare AC units for seasonal use.

Heater Repair (Furnace Repair)
As with home air conditioner repairs, home heater repairs upgrade old furnace parts, repair broken furnaces, replace failing heater parts and make old heaters more energy efficient for winter home heating. Heater repair technicians can also check for dangerous furnace emissions, such as carbon monoxide, and can fix any potential leaks.

Furnace Installation
New furnaces can be installed by local Contra Costa County heating and cooling companies. Furnace installers may put in stand-alone furnaces, or can install a new furnace as part of a home heating and cooling system. In order to get the best results and ensure the safety of your new home heater, furnace installation should only be done by an experienced professional.

HVAC Unit Installation
HVAC unit installation is a complicated process involving determining which size of heating and cooling equipment is needed, which brand and model of HVAC unit is best for your needs, detailed installation methods to keep air conditioner and furnace warrantees intact, and the actual installation process which must be done correctly in order to preserve the safety and integrity of the equipment. Experts recommend that HVAC equipment, including air conditioners, heaters, home ventilation systems, boiler systems and furnaces, should be installed by professional HVAC installation companies.

Heating and Air Conditioning Unit Repairs
Air conditioning and heating unit repairs include repairs to the heating and cooling elements, air intake, fans and* mechanical components of HVAC units.

Home Ventilation System Installation & Repair
Home ventilation system installation and repairs in Contra Costa County deal with the air intake vents, exhaust fans, home ventilator, air ducts and ventilation system controls. Some ventilation systems are integrated with heating and cooling systems while others are stand-alone ventilation systems. Residential ventilation systems remove stale air from the home, bring in fresh air from outside, and move the air around inside the home.

Energy Star HVAC Systems
Energy Star HVAC systems sold in Contra Costa County are heating and cooling units that are Energy Star certified. Energy Star is labeling system designed by the US Environmental Protection Agency and the US Department of Energy. Energy Star heating and cooling systems, air conditioners, furnaces, boilers and other home comfort systems are extensively tested to ensure high efficiency standards.

Portable Air Conditioning Units
Often seen as window air conditioners or compact air conditioners on wheels, portable air conditioning units are small, movable AC units that are not permanently installed and can be moved from room to room.

Central Air Conditioner Installation
Central air conditioners are cooling and dehumidifying systems that work from a central location in a home or business to distribute cool air throughout the building. Central air conditioners are often installed together with central heating furnaces and are known as HVAC units.

Residential Heating and Cooling System Installation
Contra Costa County HVAC companies offer installation of* residential heating and cooling systems. Installation generally includes removal of old HVAC equipment, installation and custom fitting of new heating and cooling components.

Top 10 Brand Requests for HVAC Equipment in Contra Costa County

  1. Trane Air Conditioning Units
  2. Carrier Furnaces & Air Conditioners
  3. Goodman Air Conditioners
  4. Air Con Systems
  5. Frigidaire Air Conditioners
  6. Mitsubishi Air Conditioners
  7. Bryant Furnaces
  8. Amana Air Conditioning & Heaters
  9. Lennox Air Conditioning & Furnaces
  10. Kenmore Air Conditioners & Heating Units
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If Things Go Wrong
The Diamond Certified Performance Guarantee

Diamond Certified HVAC installation contractors are backed by the Diamond Certified Performance Guarantee. If the Contra Costa heating and cooling company you've hired is Diamond Certified and you can't resolve the issue by talking with the owner, contact the mediation department at info@diamondcertified.org or call 800-738-1138....

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Diamond Certified HVAC installation contractors are backed by the Diamond Certified Performance Guarantee. If the Contra Costa heating and cooling company you've hired is Diamond Certified and you can't resolve the issue by talking with the owner, contact the mediation department at info@diamondcertified.org or call 800-738-1138.

How to End Conflict with Contra Costa County Heating, Cooling and Ventilation Contractors
By carefully vetting and choosing a good HVAC contractor in Contra Costa County, you can avoid many of the common problems that other consumers can encounter. But it's important to know your rights and options if something does go wrong.

When facing a problem with your heating and cooling company, remember these points:

  • The most direct route to a positive solution is to resolve the problem directly with your heating and cooling contractor. Talk to your HVAC company contact as soon as your complaint or question arises. Don't wait until the work is done to share your concerns.
  • Look over the contract in person with your HVAC installer and try to come to a verbal agreement on a solution.
  • Tell your HVAC contractor that you're willing to agree on a mutually-beneficial solution. Set a deadline with your heating and cooling professional for resolution of your disagreement.
  • Document your complaint or concerns in writing. Take photos if your concern lies in quality of the heating and cooling unit or workmanship.

If you still cannot get a satisfactory resolution to your conflict, you may have to resort to the following steps:

  • Consider calling a local building inspector or hiring an HVAC industry expert in Contra Costa County to evaluate your complaint, the materials and workmanship from a neutral viewpoint.
  • You may file serious grievances with the Contractors State License Board.
  • You may legally withhold payment until you've resolved your dispute with your HVAC contractor.
  • If your complaint is serious enough to warrant pressing charges for damages or reimbursement, contact the office of the state attorney general.
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Glossary of Terms
Heating, Cooling and Ventilation Glossary of Terms
Heating, cooling, ventilation and air conditioning equipment repair services.
A heating and cooling technician choosing the right materials for the job. Photo: Temperature Perfection (2012)

air conditioner
A piece of home cooling equipment that controls indoor air temperature, humidity, air quality, and movement of cool air. Air conditioning units can be portable air conditioners or central air conditioning systems that stand alone or are part of an integrated HVAC system.

Also known as: air conditioning, home air conditioner, residential air conditioner, air conditioning unit...

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air conditioner
A piece of home cooling equipment that controls indoor air temperature, humidity, air quality, and movement of cool air. Air conditioning units can be portable air conditioners or central air conditioning systems that stand alone or are part of an integrated HVAC system.

Also known as: air conditioning, home air conditioner, residential air conditioner, air conditioning unit

air filter
An air filter is the device used to remove unwanted particles, dust, vapors, and odors from indoor air. Air filters have two functions: protecting home HVAC equipment from damage and improving indoor air quality.

Also known as: air filtration units, home air filters, air conditioner filters, furnace filters, HVAC filters

air handler
Heating and cooling systems have air handlers, the piece of equipment that forces hot and cool air through ductwork and out the air vents.

Also known as: air handling system, air fan, HVAC air handler

BTU rating
BTU stands for British Thermal Units. BTUs measure the amount of heat needed to raise one pound of water one degree Fahrenheit. The higher an HVAC system’s BTU rating, the larger the heating capacity of the air conditioner or furnace. Larger homes with more space to heat and cool require HVAC systems with higher BTU ratings.

Also known as: British Thermal Units, BTU ratings, heating capacity rating, cooling capacity rating

boiler
Home heating boilers heat air using steam and hot water. Some boilers may be more efficient at providing even, draft-free heat than forced-air heaters.

Also known as: hot water steam boiler, boiler system, low pressure boilers, high pressure boilers, steam boiler, hot water boiler, steam system, gas system, oil system, boiler furnace

capacity
Capacity is defined as the ability of a heating and cooling system to heat or cool a space. When measured, the cooling capacity of an air conditioning system is generally stated in tons while heating capacity of furnaces and home heaters are measured in BTUs.

Also known as: heating ability, air conditioning ability, cooling ability, HVAC unit capacity

carbon monoxide
Carbon monoxide is a colorless, odorless, toxic gas that is produced when carbon fuels are burned. Carbon monoxide, also commonly called CO2, can leak into a home or business when furnaces or HVAC equipment becomes worn, leaky or is not correctly maintained.

Also known as: CO, CO2

central air conditioning system
Systems that cool indoor air and dehumidify it in one central location and then deliver the cooler air via a system of ducts are known as central air conditioning systems.

Also known as: central air systems, central air conditioning units, central airconditioning

downflow furnace
Downflow furnaces take in cool air at the top of the furnace unit and blow warm air out the bottom of the unit.

Also known as: down flow furnace

ductwork
Metal duct pipes that form a system of ducts throughout a home or building are referred to as ductwork. Ductwork is used to transfer and circulate air from a heating, cooling and ventilation system throughout the building.

Also known as: ducts, duct system, ductwork system, stainless steel ducts

Energy Star
Developed and trademarked by the US Department of Energy and the Environmental Protection Agency. Energy Star is a government-sponsored branding program that tests and labels energy efficient appliances and products.

Also known as: Energy Star rated HVAC units, Energy Star appliances, Energy Star heaters, Energy Star air conditioners, eco-friendly HVAC, Energy Star systems

forced air
Systems for heating, cooling and ventilation that use fans and blowers to move air through the HVAC system and into the home or business are known as forced air systems.

Also known as: forced air system, forced air HVAC system, forced air HVAC unit

furnace
Self-contained heating units that heat air in homes and buildings are referred to as furnaces. Furnaces may be stand-alone heaters or can be part of a heating, cooling and ventilation system. Some furnaces provide central heating by heating air in one central location and then dispersing it through ducts to heat an entire home while other heaters are portable furnaces.

Also known as: heaters, home furnace, heater unit, home heating unit, HVAC system, gas furnace, electric furnace, free-standing furnace, central heating unit

HVAC
HVAC stands for heating, ventilation and air conditioning. It refers to air conditioning and heating systems in homes and other buildings. HVAC can also be used to describe the trade of installing, maintaining and servicing HVAC equipment.

Also known as: heating, cooling and ventilation; heating, cooling, ventilation; heating and cooling; heating and cooling systems; HVACR; heating, ventilation, air conditioning, refrigeration

heat pump
The heat pump is the unit that handles both heating and cooling. In some climates, a heat pump may handle your heating and cooling needs more efficiently than a furnace and air conditioner.

Also known as: heater pump, heating pump, home heat pump

horizontal flow furnace
Horizontal flow furnaces are installed on their sides, enabling them to draw in air from one side, heat the air and push it out the other side to heat the room.

Also known as: furnace, side furnace, horizontal furnace

heating seasonal performance factor
Heating seasonal performance factor measures the heating efficiency of heat pumps. The higher a heat pump’s HSPF, the more efficiently the heat pump works.

Also known as: HSPF

humidifier
Humidifiers add moisture to the air. Stand alone humidifiers are portable and can be moved from room to room. Other humidifiers are available as permanent equipment additions to HVAC systems to add moisture to air as it comes out of the furnace to keep the air in a home or building from becoming too dry when the heater is running.

Also known as: home humidifier, air humidifier, humidifying system

load calculation
Load calculation is a way of computing the cooling and heating power an HVAC system must produce for indoor comfort. The load is influenced by many factors: climate, square footage of conditioned area, orientation and layout of the building, number of human occupants, room count and dimensions, window and door count and characteristics, insulation quantity and quality, and more.

Also known as: heat gain and loss calculation, heat loss calculation, heat gain calculation, load calculator, HVAC unit load calculation, heating & cooling load calculation, HVAC system load calculator

package system
An outdoor unit that houses heating and cooling blower and coil components, package systems provide heating and cooling for an entire building or home.

Also known as: packaged heat pump, package heat pump, packaged system, package air conditioner, packaged air conditioner, electric cooling package system, gas heating package system, electric heating package system

refrigerant
As used in an air conditioner or air conditioning component of an HVAC system, any chemical used to cool the air is referred to as refrigerant.

Also known as: air conditioning, home cooling, chemical refrigeration, refrigeration, chemical refrigerant

seasonal energy efficiency rating
SEER measures an air conditioner or HVAC unit's cooling efficiency. The higher the SEER number, the greater the efficiency of the unit.

Also known as: SEER

thermostat
A thermostat is a device that monitors and controls the temperature inside a home or building. Thermostats may be manually set or can be programmable thermostats that are pre-set to heat and cool buildings at a certain time.

Also known as: programmable thermostats, wireless thermostats, touch screen thermostats, home thermostats, HVAC thermostats, heating and cooling thermostats, digital thermostat, home  comfort control

upflow furnace
An upflow furnace draws cool air from the bottom of the unit and blows warmed air from the top.

Also known as: forced air furnace

ventilation system
Home ventilation systems exchange stale indoor air with to fresh air from outside the home. Ventilation systems often filter the incoming air. Ventilation components are often a standard part of home heating and cooling systems.

Also known as: home ventilators, HVAC system, home ventilation system

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Frequently Asked Questions
FAQ About Local Heating and Cooling Services

Q: Why choose a Diamond Certified HVAC company?...

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Q: Why choose a Diamond Certified HVAC company?
A: Diamond Certified helps you choose a local heating and cooling contractor with confidence by offering a list of top-rated local companies who have passed the country’s most in-depth rating process. Only furnace and air conditioning companies rated Highest in Quality earn the prestigious Diamond Certified award. Most companies can’t pass the ratings. American Ratings Corporation also monitors every Diamond Certified company with in-depth and ongoing research and ratings. And your purchase is backed by the Diamond Certified Performance Guarantee. So you’ll feel confident choosing a Diamond Certified heating and cooling company.

Q: How do I know when it’s time to replace my old HVAC equipment?
A: Only a thorough examination from a good heating and cooling contractor will tell you for sure if you need a new home comfort system, but there are a few tell-tale signs that it may be time to replace your HVAC unit:

  • If your furnace, boiler, heat pump, air conditioner or HVAC system is more than 10-15 years old, you may want to consider replacing it with a newer, more energy efficient system.
  • If your HVAC equipment needs frequent repairs, doesn’t seem to be heating and cooling your home as well as it used to, or your energy bills are going up.
  • Sudden humidity problems in your home may be a sign of a poorly-operating HVAC system or heating and cooling equipment failure.
  • Your HVAC system is very noisy when it runs or seems to be struggling to keep up with your heating and cooling needs. This could signal an undersized system or an underperforming HVAC unit.
  • Excessive dust can be a sign of leaky HVAC ducts.

Q: Some rooms in my house are too hot while others are too cold. What could be causing this?
A: Rooms that are too hot or too cold can be caused by duct work problems, poor home insulation, inefficient HVAC equipment or a failing heating and cooling system. You should call a qualified heating and cooling contractor for a home energy audit and a check of your HVAC system. A good HVAC contractor should be able to determine what is causing the temperature fluctuations and tell you the best way to fix the problem.

Q: How often should I have my home HVAC system serviced?
A: Most HVAC companies recommend having your heating and air conditioning equipment checked at least once a year. Some companies advise having a qualified HVAC technician test your heater/furnace in the fall and your air conditioning tested in the spring. HVAC servicing may help your system last longer and stay efficient because regular heating and cooling system maintenance can help locate problems and fix them before they cause an HVAC system failure, help your system run at peak performance and cut down energy costs, maintain healthy and safe operation, and can prolong the life of the furnace and air conditioner equipment.

Q: What features should I look for in a home heating and cooling system?
A: Home comfort systems come with many different features. Your heating and cooling specialist should help you determine which features are best for you, but you may want to spend some time thinking about what is important to you before selecting a home air conditioning unit and furnace. Some HVAC unit features you may wish to consider include home climate control devices such as programmable thermostats, HVAC system noise reduction units, cooling and heating units that preserve home air quality, and high efficiency equipment that helps save money and is better for the environment.

Q: Why should I consider an Energy Star furnace and air conditioner?
A: Energy Star HVAC systems are those that have tested as high efficiency in the Energy Star labeling system designed by the EPA and the US Department of Energy. Energy Star air conditioners, furnaces, boilers and HVAC units may offer better efficiency standards and lower operating costs and environmental costs than competing heating and cooling systems that are not Energy Star certified.

Q: How long will it take to replace my AC and furnace equipment?
A: The amount of time for installation depends on the size of your job, the work you’re having done and the experience level and detail of your heating and cooling contractor. It can take as few as one or two days to add on to an existing HVAC system and up to a week or more to install new furnaces and AC systems. Good contractors will take the necessary time to modify your new heating and cooling unit and ductwork to exactly fit your home.

Q: Do I really need to hire a local heating, cooling and ventilation contractor or can I just install my new HVAC system myself?
A: Poorly-installed HVAC systems can be more expensive to run, can wear out sooner than correctly-installed heating and cooling systems and can even pose a danger to your health. If HVAC systems are installed incorrectly, they can even leak toxic gasses into your home. So it’s important to hire a skilled, licensed HVAC contractor to install, service and inspect your home heating and cooling system. HVAC contractors who know how to do their jobs correctly will install systems without gaps in the ductwork, so systems are more efficient and last years longer than poorly-installed systems.

Q: What is the difference between an upflow furnace, downflow furnace and horizontal furnace?
A: These terms simply refer to how a furnace delivers air. An upflow furnace delivers hot or cold air upwards, pushing heated or air conditioned air up from the top of the furnace into an overhead HVAC duct system and then out through heater vents or air conditioning vents. A downflow furnace is the opposite, pushing air down through the bottom of the furnace and into the home duct system that runs beneath it. Horizontal furnaces, as the name suggests, lay on their side and push the cooled or heated air out into the ducts from a prone position. Horizontal furnaces are most often used in attics, basements or tight spaces because they maximize space.

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Consumer Agencies
Associations for Professional HVAC Installers & Repair Services

American Backflow Prevention Association (ABPA) (www.abpa.org/)
Air Conditioning Contractors of America (ACCA) (www.acca.org/)
Associated General Contractors of America (AGC of America) (www.agc.org/)
Associated Specialty Contractors (ASC) (www.assoc-spec-con.org/)
American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) (www.ashrae.org/)...

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American Backflow Prevention Association (ABPA) (www.abpa.org/)
Air Conditioning Contractors of America (ACCA) (www.acca.org/)
Associated General Contractors of America (AGC of America) (www.agc.org/)
Associated Specialty Contractors (ASC) (www.assoc-spec-con.org/)
American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) (www.ashrae.org/)
California Sheet Metal and Air Conditioning Contractors National Association (CALSMACNA)
(www.cal-smacna.org/)Contractors State License Board (CSLB) (www.cslb.ca.gov/)
Mechanical Contractors Association of America (MCAA) (www.mcaa.org/)
National Board of Boiler and Pressure Vessel Inspectors (NBBPVI) (www.nationalboard.org/)
North Coast Builders Exchange (NCBE) (www.ncbeonline.com/)
Heating, Cooling Contractors Association (PHCCA) (www.phccweb.org/)
Refrigeration Service Engineers Society (RSES) (www.rses.org/)
U.S. Environmental Protection Agency (EPA) (www.epa.gov/)
American Boiler Manufacturers Association (ABMA) (www.abma.com/)
Hydronic Heating Association (www.comfortableheat.net/)

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Industry Information
Contra Costa County Heating, Ventilation & Cooling (HVAC) Equipment Information
Popular HVAC System BrandsTypes of HVAC Services Available in Contra Costa County Cities Served by HVAC Contractors in Contra Costa CountyZip Codes Served by Contra Costa County HVAC Contractors
Arcoaire HVAC SystemsHVAC system serviceAlamo
Antioch
Bay Point
Bethel Island
Blackhawk
Brentwood
Briones
Byron
Canyon
Clayton
Clyde
Concord
Cowell
Crockett
Danville
Diablo
Discovery Bay
El Cerrito
El Sobrante
Hercules
Hilltop Mall
Kensington
Knightsen
Lafayette
Los Medanos
Maltby
Martinez
Moraga
North Richmond
Oakley
Orinda
Pacheco
Pinole
Pittsburg
Pleasant Hill
Point Richmond
Port Chicago
Port Costa
Rheem Valley
Richmond
Rodeo
San Pablo
San Ramon
Tara Hills
Vine Hill
Walnut Creek
Walnut Heights
West Pittsburg
94506
94507
94509
94511
94513
94514
94516
94517
94518
94519
94520
94521
94522
94523
94524
94525
94526
94527
94528
94530
94531
94547
94548
94549
94553
94556
94561
94563
94564
94565
94569
94570
94572
94575
94582
94583
94595
94596
94597
94598
94801
94802
94803
94804
94805
94806
94807
94808
94820
94850
General Electric HVAC Equipmentheating & cooling service
Amana HVAC SystemsHVAC repair
Comfortmaker HVAC Systemscooling & heating installation
Bryant HVAC Systemsair conditioning service
Buderis HVAC Systemsnatural ventilation unit installation & service
Emerson Heating & Cooling SystemsHVAC unit replacement
Evcon HVAC Systemsresidential HVAC service
Coleman HVAC Systemscommercial HVAC service
Armstrong Heating & Cooling Systemsheating and cooling system repair
Burnham Heating & Cooling SystemsHVAC troubleshooting
Carrier Heating & CoolingHVAC heat pump repair
York HVAC Systemsemergency HVAC servicing
American StandardHVAC work
Goodman HVAC Systemsheating repair
Haier Cooling & Heating SystemsHVAC duct cleaning
Hallmark Heating & Cooling SystemsHVAC sales & installation
Heil Heating & Cooling Systemsair conditioner installation
Lennox Cooling & Heating SystemsHVAC ductwork installation
Janitrol Heating & Cooling SystemsHVAC efficiency testing
Trane HVAC EquipmentHVAC system design
Frigidaire HVAC Equipmentfurnace installation
Mitsubishi HVACHVAC ductwork repair
Samsung HVAC Equipmentventilation system service
Sanyo Heating & Cooling Systemsventilation duct cleaning
Intertherm HVAC Systemsventilation filter installation
Kenmore HVAC SystemsHVAC blower service