Diamond Certified Company Report

A-1 Guaranteed Heating & Air, Inc.

Diamond Certified Company Report

A-1 Guaranteed Heating & Air, Inc.

Diamond certified ratings dashboard
CUSTOMER SATISFACTION i
Customer LOYALTY i
Helpful Expertise i
Company Credentials i
  • Workers Compensation
  • Liability Insurance
  • License Verification
  • Business Practices
  • Current Complaint File
  • Legal & Finance
Phone SURVEY RESPONSES FROM 251 VERIFIED CUSTOMERS i

Gary E.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

1 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

Their service was excellent.

They gave us good service and they communicated well with me. They seemed very knowledgeable and they showed me all of their options.

Jennifer D.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

2 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

It is a local, family-owned business and they support their community.

They are local, they are always very pleasant to work with, and they always ask how their workers did. They have been in Vallejo for a long time.

Angela G.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

3 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They were very professional, very helpful, and they went out of their way to make sure I was getting a good deal. I would use them again and again.

Their professionalism

Read All 251 Survey Responses at Ratings View
Diamond certified VIDEO PROFILE
Diamond certified company PROFILE

A-1 Guaranteed Heating & Air, Inc.  is a family-owned and operated HVAC (heating, ventilating and air conditioning) business that serves residential and commercial clients in Solano, Napa, and Contra Costa Counties. The company installs, replaces, repairs and maintains a wide variety of HVAC systems, including furnaces, evaporator coils, compressors, vents and ducts. A-1 Guaranteed has also recently partnered with EnergyUpgradeCA to increase its customers’ overall energy efficiency and achieve even greater savings by upgrading their homes.

Owners Richard and Krissy Hiteshew established A-1 Guaranteed Heating & Air more than 20 years ago, and they’ve since expanded to serve thousands of Bay Area customers. The company’s efforts have also translated to community recognition—it’s received 12 awards for “Best HVAC Company in Solano” from the Vallejo Times Herald, the “Spirit of Solano” award and KRON 4’s coveted “Best of the Bay” award for four years.

A-1 Guaranteed Heating & Air is a factory-authorized dealer of Bryant HVAC systems. The company also offers a “Guaranteed Universal Savings Agreement” that utilizes more than 35 procedures to tune HVAC systems for maximum efficiency. 

Read moreShow less
COMPANY REPORT NAVIGATION

Diamond Certified Companies are Rated Highest in Quality and Helpful Expertise.

  • Why this rating is the most accurate.
  • Our editors gather deep company info.
  • Performance is Guaranteed.

DIAMOND CERTIFIED RESEARCHED CAPABILITIES ON A-1 Guaranteed Heating & Air, Inc.

COMPANY CONTACT
Service AREA

Solano County
Contra Costa County
Alameda County
Napa County
Sonoma County
Santa Rosa
Richmond
Calistoga
Oakland

SERVICES PERFORMED

Air Conditioning & Heating
Indoor Air Quality
Commercial & Residential
Sales, Installation & Service
Home Energy Audits
Green Building & Remodeling
Tankless Water Heaters
Insulation & Windows
Solar

BRANDS Supported
  • Trane

DIAMOND CERTIFIED RESEARCHED ARTICLES ON A-1 Guaranteed Heating & Air, Inc.

Company Profile

A-1 Guaranteed Heating & Air, Inc.  is a family-owned and operated HVAC (heating, ventilating and air conditioning) business that serves residential and commercial clients in Solano, Napa, and Contra Costa Counties. The company installs, replaces, repairs and maintains a wide variety of HVAC systems, including furnaces, evaporator coils, compressors, vents and ducts. A-1 Guaranteed has also recently partnered with EnergyUpgradeCA to increase its customers’ overall energy efficiency and achieve even greater savings by upgrading their homes.

Owners Richard and Krissy Hiteshew established A-1 Guaranteed Heating & Air more than 20 years ago, and they’ve since expanded to serve thousands of Bay Area customers. The company’s efforts have also translated to community recognition—it’s received 12 awards for “Best HVAC Company in Solano” from the Vallejo Times Herald, the “Spirit of Solano” award and KRON 4’s coveted “Best of the Bay” award for four years.

A-1 Guaranteed Heating & Air is a factory-authorized dealer of Bryant HVAC systems. The company also offers a “Guaranteed Universal Savings Agreement” that utilizes more than 35 procedures to tune HVAC systems for maximum efficiency. 

Read moreRead Less
Company Philosophy

"We're honest and upfront with our customers, and we make sure they get exactly what we promise. We're confident in our work, and we're able to offer guarantees that assure our systems will perform to our customers' complete satisfaction. If there's ever a problem, we'll do everything we can to make it right, whether that means removing a system or completely refunding an investment. The happiness and comfort of our clients is the most important aspect of our business."

Read moreRead Less
Comparative Summary

Customer service is so important to A-1 Guaranteed Heating and Air, Inc., says vice president Krissy Hiteshew, that most of its business comes from referrals. The family-run HVAC (heating, ventilating and air conditioning) contractor operates under the golden role of customer service: Treat people as you’d like to be treated. The company believes in doing “whatever we can to make customers happy,” says Mrs. Hiteshew.

Mrs. Hiteshew estimates that A-1 Guaranteed Heating and Air has the highest percentage of NATE (North American Technician Excellence)-certified technicians of any South Bay HVAC company. That’s important, she says, since NATE is the number one testing program for the HVAC industry and requires its technicians to undergo continuous training to keep their certifications in good standing. A-1 Guaranteed Heating and Air also holds monthly information and training meetings to keep its technicians updated.

Mrs. Hiteshew, who co-owns A-1 Guaranteed Heating and Air with her husband, Richard, says the company takes an honest approach with its customers. “We’re with them for life,” she says, with a crew of factory-trained technicians and a pledge to be “courteous, fair, thorough, and professional in every service we provide.”

To help it honor that pledge, A-1 Guaranteed Hearing and Air records and listens to phone calls made to and from its offices. Mrs. Hiteshew personally calls every customer following the completion of their job. In addition, the company distributes a survey to customers–satisfied or otherwise–in which they can offer feedback and voice concerns.

A-1 Guaranteed Hearing and Air also offers a full line of Green products for home energy efficiency and holds the distinction of being Solano County’s first Green HVAC company.

Read moreRead Less
Industry Info

There are many reasons to hire licensed HVAC technicians to install or repair your heating or air conditioning systems. You’ll get better-quality work that lasts longer and, most likely, saves you money on energy bills. However, it’s important to also remember that a poorly installed or maintained unit is actually a safety hazard. Air conditioning units contain harmful chemicals, such as Freon, that require special training to properly handle.

“HVAC is about more than just putting a unit in someone’s house,” says Krissy Hiteshew, co-owner of A-1 Guaranteed Heating and Air, Inc. “It also has to do with the quality of incoming air, which can affect people who have asthma or lung problems. There are many variables.”

Your HVAC contractor should also conduct duct pressure testing, now required by California law, to check for leaks. Not only do leaky ducts drain efficiency from HVAC systems, they can also carry contaminated air into your home.

There are safety control designs built into every HVAC system that reduce the risk of personal injury and fires. These protective devices vary slightly from one unit to another, depending on whether the air conditioner or furnace is gas or electric. Take the following steps to make sure your system performs safely and efficiently.

Regularly clean the air filters in your furnace and air conditioning systems. If the filters get clogged with dirt, dust or debris, it restricts air flow throughout the system. This can lead to motor strain and overheating, which pose a fire hazard.

Check your thermostat to make sure it’s set properly. Make sure the reading is set on “Heat” and at the proper temperature. When the air conditioner is running, make sure the “Cool” setting is at an appropriate temperature to avoid constant operation.

Purchase a simple volt meter at your local hardware or home improvement store. Use it to check your circuit breaker to see how many volts of electricity are going to your HVAC unit. The circuit breaker is one of the most important safety controls on your system. If a power surge of more than 240 volts occurs, the circuit breaker should trip, shutting off the unit.

Secure the wiring. The low-voltage wires on your HVAC system are part of the safety controls. Check all electrical connections and make sure they’re tight.

Read moreRead Less
Frequently Asked Questions

Q: Will you save me money over the long term?

A: If you own any HVAC product that’s at least 10 years old, it’s not running as efficiently as it could. A newer, more efficient unit could definitely save you money. For example, if your current unit is operating at lower than 10.00 SEER (Seasonal Energy Efficiency Ratio), your average annual cooling bill will be about $800. If you were to upgrade to a 19.5 SEER system, it could potentially cost you $410—an annual savings of 49 percent.

Q: Can you help with allergy control?

A: A lot of new furnaces and air conditioners have filters that actually clean the air and can help prevent an allergy or asthma flare-up in the home.

Q: Are your estimates free?

A: Yes.

Q: What about maintenance? Is that really important?

A: We recommend that people maintain their unit just like they would a car. We can come in and do full maintenance—we’ll clean the coil, vacuum everything out and lubricate all the moving parts. We have maintenance programs available, and we handle all the scheduling so you don’t have to worry about it.

Q: Will regular maintenance extend the life of a HVAC unit?

A: Yes, and it’ll also keep it running more efficiently, which means a lower PG&E bill.

Read moreRead Less

SELECTED PHOTOS FROM A-1 Guaranteed Heating & Air, Inc.

View Comments
Shares
A-1 Guaranteed Heating & Air, Inc. WEBSITE AND EXTERNAL FEED
  • A-1 Guaranteed Heating & Air, Inc. SOCIAL MEDIA FEEDS
Diamond Certified RATINGS ON A-1 Guaranteed Heating & Air, Inc.
Diamond certified ratings dashboard
CUSTOMER SATISFACTION i
Customer LOYALTY i
Helpful Expertise i

Each surveyed customer was asked, “If you needed any helpful expertise, did this company provide that expertise?” To calculate this score, total “Yes” responses were divided by total responses (excluding those that stated they hadn’t needed any expertise).

Company Credentials i
  • Workers Compensation
  • Liability Insurance
  • License Verification
  • Business Practices
  • Current Complaint File
  • Legal & Finance
Phone SURVEY RESPONSES FROM 251 VERIFIED CUSTOMERS i
A-1 Guaranteed Heating & Air, Inc. : Average 9.3 out of 10 based on 251 unique customer surveys of customer satisfaction.

Gary E.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

1 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

Their service was excellent.

They gave us good service and they communicated well with me. They seemed very knowledgeable and they showed me all of their options.

Jennifer D.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

2 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

It is a local, family-owned business and they support their community.

They are local, they are always very pleasant to work with, and they always ask how their workers did. They have been in Vallejo for a long time.

Angela G.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

3 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They were very professional, very helpful, and they went out of their way to make sure I was getting a good deal. I would use them again and again.

Their professionalism

Ashley G.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

4 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

You get what you pay for. They were honest, helpful, and they answered my questions fully.

They were just super friendly.

Shirley D.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

5 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

I had very good service from them.

They were very prompt in helping me and getting things done. They cleaned up afterwards.

Renee Y.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

6 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They are very prompt and helpful. They have good pricing.

I had the same guy come out twice. I believe his name was Carlos and he was cool.

Sally M.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

7 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

Not to be afraid to call them, they will do a good job for a good price. My heater broke when I came home and it was freezing called and they went overboard to make it work out for me.

That you can depend on them.

John K.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

8 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They are an honest company and they do all the work for me. Everything is always guaranteed and of good quality.

They are reputable.

Larry S.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

9 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They have an amazing out look on the problems they dealt with. I would recommend people to give them a call.

My favorite thing was that they were able to solve an issue without having to replace the whole unit like other recommended.

Carolynne E.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

10 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

Very trustworthy and I am extremely happy with their product and the job they did.

I have a nice unit and I am just happy with the product.

Christina P.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

11 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They are good.

They do what they say they are going to do.

Bill P.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

12 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They are good to work with, easy to work with, and they will fix any mistakes.

They are committed to customer satisfaction.

Yancy H.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

13 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

Stay local

Prompt service and professionalism

Laura F.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

14 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They were very thorough, very knowledgeable, and very responsible.

They did a couple of different jobs for me and in one job, they were able to figure out why one wall heater was not working when another company was not able to figure it out. So they were very knowledgeable.

Alex

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

15 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

They were knowledgeable, careful, and responsive. I had kind of a tricky situation and they got the job done with no problems at all.

They knew what they were doing and I had confidence in the work they were doing.

Marion S.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

16 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

I would say how professional they were, what a great job they did, and my system works great.

They were very professional and they did an excellent job. They left no mess behind and they were really neat and clean.

Milan M.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

17 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

I had excellent service.

They did the job perfectly and to my satisfaction.

Pearl R.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

18 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

I would highly recommend them. They did a great job for me.

Courteous, and they got the job done when they were supposed to. They were very polite to me as an older person.

Philip S.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

19 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

Friendly, reliable, and professional

They did what they said they would do when they said they would do it.

Richard B.

VERIFIED A-1 Guaranteed Heating & Air, Inc. CUSTOMER

20 of 251

Quality 10
10 10
Loyalty Yes
CRITIQUE

It was a very good and thorough inspection. They gave good recommendations for future services.

I was able to schedule an appointment very quickly.

Read All 251 Survey Responses at Ratings View