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 companies are top rated and guaranteed

Why Trust Diamond Certified Window Washing Companies Rated Highest in Quality?

Diamond Certified window washing contractors like these pictured are able to offer commercial and residential window washing services to single- and multi-story homes and businesses. You can feel confident choosing a quality window washing company listed above because each has been rated Highest in Quality and has earned the prestigious Diamond Certified award. For more information on how best to choose and work with window cleaning companies in Marin County, see the following informative articles. Photo: Crystal Clear Window Cleaning & Pressure Wash Services (2012) Topic: Finding High Quality Window Washing Services in Marin County

SAN RAFAEL—You are the customer. If your goal is to choose a window washing company that will deliver high customer satisfaction and quality, you’ll feel confident in choosing a Diamond Certified window cleaning company. 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 window washer 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.

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DIAMOND CERTIFIED EXPERT CONTRIBUTORS IN THE Marin County – Window Washing CATEGORY

Eric Kennedy is a veteran of the window cleaning industry and co-owner of Smart Window Cleaning, a Diamond Certified company since 2011. He can be reached at (415) 938-6902 or by email.

Eric Kennedy

diamond certified contributor profile and expert article

Eric Kennedy: A Clear Career

By James Florence, Diamond Certified Resource Reporter

NOVATO — When Eric Kennedy started cleaning windows for additional income during college, he never thought it would lead to a lifelong livelihood. “My roommate and I were looking for a way to make some extra money, so we decided to try window cleaning,” he recounts. “We bought some tools, went out and did a couple of stores at the Northgate Mall. We did OK, but it didn’t really go anywhere, so I got a job working for a local window cleaning company where I could get formally trained. It turned out to be a natural fit—I enjoyed the physical work, as well as getting to work in and around beautiful homes all day. Almost 30 years later, I’m now co-owner of the same company I first started working for, along with my business partner, Damon Turner.”

As co-owner of Smart Window Cleaning, Eric says he appreciates the balance his position affords. “I’m not out cleaning windows anymore—I work in the office now—but I enjoy training our employees and passing on my knowledge of the trade. I also go out and do estimates for homeowners around the Bay Area, which gives me a nice balance between working in the office and being out in the field.”

A resident of Petaluma (where he lives with his wife, Suk Yen, and stepson, Aiden), Eric expresses his appreciation for its mellow pace of life. “It’s hard to beat North Bay living, especially here in Petaluma. In particular, my family and I love the Petaluma downtown area—besides having a historic aesthetic, it just has a good vibe.”

Outside of work, Eric can often be found riding bicycles with his family. “We like to put our bikes on the car and go riding in different spots around the Bay Area, like Tiburon or along the San Francisco Marina,” he says. “We also like eating out and going to the movies.”

In regard to his professional career, Eric acknowledges the contributions his employees have made to his company’s ongoing success. “The fact that what we do is seasonal can make it hard to retain employees, so we’ve been very fortunate that they keep coming back,” he explains. “If they didn’t, we wouldn’t be successful, so we really appreciate them and make an effort to maintain those relationships. It gives us a lot of pride that they continue to be a part of our team.”

When asked the first thing he’d do if he were to retire tomorrow, Eric he’d spend more time abroad. “My wife and I have a dream of buying a second home in Indonesia, which is where she’s from, and living abroad part-time. We’d continue to maintain a home here, so we could just go back and forth as we pleased. Hopefully that’s something we can afford to do one day.”

Ask Me Anything!

Q: What’s your favorite local restaurant?
A: For Mexican food, it’s Mi Pueblo; for Vietnamese, we go to Thang Long; and for Italian, we like Sugo Trattoria.

Q: Are you an early bird or a night owl?
A: An early bird.

Q: What was your favorite toy as a child?
A: My skateboard.

Q: If you could immediate master any musical instrument, what would you choose?
A: The piano.

Q: Would you rather live in the city or the country?
A: Probably the country. Fortunately, Petaluma has a nice mix of both, so I appreciate that.

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How to Clean a Window

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NOVATO — If you want to maintain your windows in between professional cleanings, you’ll need to have the right cleaning tools and techniques at your disposal. Start with the tools: Go to your local hardware store and pick up a strip… Read more

Expert Video Tip

Video: How To Clean a Window

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Complete Video Transcription:

NOVATO — Host, Sarah Rutan: If you want to maintain your windows between professional cleanings, you’ll need to know the proper technique. Today we’re in Novato… Read more

SELECTED PHOTOS FROM THESE TOP RATED COMPANIES

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INDUSTRY INFORMATION AND RESEARCHED ARTICLES BY THE DIAMOND CERTIFIED RESOURCE

Bruske Window Cleaning Extension Poles
Ritz Window Cleaning Cloths
Pro Window Cleaning Products
J. Racenstein Window Cleaning Products
Titan Laboratories Window Cleaning Solutions
Flo-Thru Window Brushes
Green Works Window Cleaners
WCR Window Cleaning Supplies
Unger Window Cleaning Products
Durasonic Glass Cleaners
Opti-Logic Telescoping Window Cleaning Poles
Carlisle Window Squeegees
Draper Window Cleaning Products
Steel City Glass Cleaner
Colker Window Cleaning Products
Ettore Window Washing Products

window cleaning tools
professional window cleaning
commercial window washing
residential window washing / home window cleaning
industrial window cleaning
window washing solution sales
interior window cleaning
exterior window cleaning
spotless window washing treatment
magnetic window cleaning
window cleaning services
window squeegee services
green window cleaning
pure water window cleaning
high rise window cleaning
water-fed pole window cleaning

Almonte
Bel Marin Keys
Belvedere
Belvedere Tiburon
Black Point
Bolinas
Corte Madera
Dillon Beach
Dogtown
Fairfax
Forest Knolls
Greenbrae
Ignacio
Inverness
Kent Woodlands
Kentfield
Lagunitas
Larkspur
Lucas Valley
Marin City
Marinwood
Marshall
Mill Valley
Mission Rafael
Muir Beach
Muir Woods
Nicasio
Novato
Olema
Point Reyes Station
Ross
San Anselmo
San Geronimo
San Marin
San Quentin
San Rafael
Santa Venetia
Sausalito
Sleepy Hollow
Stinson Beach
Strawberry Point
Tamal
Tamalpais Valley
Terra Linda
Tiburon
Tomales
Woodacre

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Building Service Contractors Association (BSCAI) (http://www.bscai.org/)
California Department of Consumer Affairs (DCA) (http://www.dca.ca.gov/)
Glass Association of North America (GANA) (http://www.primaryglass.org/)
International Facility Management Association (IFMA) (http://www.ifma.org/)…

Building Service Contractors Association (BSCAI) (http://www.bscai.org/)
California Department of Consumer Affairs (DCA) (http://www.dca.ca.gov/)
Glass Association of North America (GANA) (http://www.primaryglass.org/)
International Facility Management Association (IFMA) (http://www.ifma.org/)
The Worldwide Cleaning Industry Association (ISSA) (http://www.issa.com/)
International Window Film Association (IWFA) (http://www.iwfa.com/)
Window Cleaning Safety Training Certification (IWCCI) (http://www.iwcci.org/)
Power Washers of North America (PWNA) (http://www.pwna.org/)
United Association of Mobile Contract Cleaners (UAMMC) (http://www.uamcc.org/)

Know What You Want
Knowing What You Want Before Hiring Marin County Window Cleaning Companies

Once you are ready to hire a Marin County window cleaning service in the major cities of San Rafael, Novato, Mill Valley, San Anselmo, and Larkspur, it is important to know what you want. Unfortunately, many cleaning companies are less than proficient and do not meet the standard of window cleaning required. Use the questions below to help you determine what you really want from a window cleaning service and you are almost guaranteed to find the most reliable and trustworthy window cleaning company. The benefits will be well-worth it!

  • Do I want a Marin County window cleaning company that uses environmentally friendly cleaning supplies?
  • Do I want a local window washing company to provide cleaning services on a regular basis or on a one-time basis only?
  • Do I want a window washing service that provides window cleaning supplies and equipment?
  • Do I want a reputable window washing company that is fully insured and bonded?
  • What windows do I want cleaned?
  • What is my budget for window washing services?
  • Do I want a Diamond Certified window cleaning company that is rated best in quality and backed by the Diamond Certified Performance Guarantee?

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What To Ask In Person
Questions to Ask Representatives of Window Washing Companies in Marin County

Once you've narrowed down your search to a few of the best Marin County window cleaning companies that serve the major cities of Corte Madera, Tiburon, Sausalito, Fairfax, Ross, and Belvedere, invite them to visit your home in person. This way, you can meet the company representative and show them the areas you need to have cleaned.

This will often give you a chance to ask some final questions about the window washing services and let the window cleaning companies give you more accurate quotes.

Questions you may want to consider asking at this point include:

  • How long will it take the Marin County window cleaning company to finish the job?
  • Can the window washing company remove mineral deposits, stains, and paint overspray when cleaning the windows if needed?
  • What additional services does the window cleaning company offer?
  • Can the window washers clean and repair window screens if you need that service?
  • What chemicals do the window cleaning professionals use or do they use chemicals?
  • Do the window washing companies offer special coatings to help your windows repel bird droppings, dust and watter spotting?
  • Are the window cleaning solutions these window washers use safe, pet-friendly, and child-friendly?
  • Do the window cleaners do their window washing alone, with a crew, or subcontractors?
  • Do you have any specials for new customers?
  • Will the window washing companies provide one-time services, or do they require a contract for multiple visits?
  • Can you schedule an annual or semi-annual window cleaning visit?
  •  

 

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  • What To Ask References
    Learn About Local Window Washing Companies From Previous Customers

    It's best to choose a Diamond Certified window cleaning company because all certified companies have passed an in-depth ratings process that most other companies can't pass.

    If you want quality from a window washing professional in Marin 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 misled 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 window washing company within reach, you'll have to do some research on your own. If you do, plan to call some references provided by the window cleaning professionals.

    Keep in mind, though, that references provided to you by the window cleaning company 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 companies are 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.

    Questions you may want to ask include these:

    • Do you feel the price was fair for the window cleaning services you received?
    • What did you like best about this particular Marin County window cleaning company?
    • Did the window cleaning company listen to and communicate with you?
    • What window cleaning services did  (window cleaning company name_) do for you?
    • Were you satisfied with the window cleaning services from this Marin County window cleaning company?
    • Would you go back to this window cleaning company for future window cleaning services?
    • Would you recommend this Marin window cleaning company?
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  • Review Your Options
    Finding a Trustworthy Window Cleaning Professional in Marin County

    The Diamond Certified symbol has been awarded to companies that scored Highest in Quality in an accurate ratings process.

    Your choice of window cleaning company is an important concern. More expensive companies do not necessarily offer better value. On the same token, inexpensive companies may not provide the service that you want. It's important to understand that every window cleaning service will perform the window cleaning a little differently. Some will be able to customize their approach to your needs a little better. Ask for a specific cleaning checklist of exactly what your window cleaning will include. Also, if you are using window cleaning company for cleaning maintenance, be sure to ask whether all of the tasks will be accomplished with each cleaning service, or is certain tasks will be rotated.

    Before deciding on the best window cleaners in Marin County for you, it's important to consider the following questions.

    • When was the last time rates were raised? It is important to understand how often the costs of the company are raised so that you are not surprised in the future by unexpected increases.
    • What does the window cleaning company offer that is specific to my needs?
    • Is the window company bonded and insured?
    • What are the billing practices of the window washing business?
    • Can a window cleaning company in Marin County provide your requirements for scheduling and customer service?
    • Is the window cleaning company devoted to your satisfaction?
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  • How To Work With
    Preparing to Sign A Contract with Marin County Window Cleaning Companies

    Once you find a local window cleaning company in Marin County, including the larger cities of San Rafael, Novato, Mill Valley, San Anselmo, and Larkspur, that meets all your standards, it is time to ask for a written contract.

    This contract should include the written details about the price of the window cleaning, as well as the date when the job will be done.

    Be sure to read and understand all terms and restrictions before you sign the contract. If you do not understand some of the terms or content of the contract, ask your window cleaning company for an explanation or a new contract. You deserve to fully understand the terms you're agreeing to before you make a formal decision.

    This contract should safeguard your home or business and your interests, as well as those of window cleaning company. Because of this, you should never sign an incomplete estimate or an estimate with errors or omissions.

    Do not be afraid to write specific requests or verbal agreements in the contract. This will protect you and confirm that you get the services you agreed on. You might include issues that are not always in a contract, like how the window cleaning company will handle any window or glass damage that occurs while they are cleaning the windows.

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  • Be a Good Customer
    Keys to Being a Good Window Cleaning Customer

    It's the window washing company's responsibility put in quality window washing using the best possible cleaning techniques. But you play a big part in the success of your window cleaning, too.

    Here are a few simple steps you can take to be a good customer when hiring a Marin County window cleaner.

    • Ask your window washing specialist if you should call to check on the progress or if he will call you with updates.
    • Be sure your service representative has a phone number where they can reach you at all times while they're window cleaning. The work will move along more smoothly if your window washing company can reach you for any necessary updates, questions or work authorizations.
    • When your contractor contacts you, return calls promptly to keep the window washing on schedule.
    • Before you hire a window cleaning company in Marin County, restate your expectations and goals, and reiterate to the window washing representative your understanding of the agreement. Most problems with local window washer occur because of a breakdown in communication. By being clear about your expectations and theirs, you can avoid most conflicts.
    • Pay for the window cleaning work promptly.
    • Be clear and upfront with the professional window cleaner. Let them know what you want from your window cleaning, the long-term outcome you're expecting and specific ways they can satisfy your expectations.
    • Remember, a friendly smile goes a long way.

    You will want to be a good customer. Window washing in Marin County appreciate customers who are straightforward, honest and easy to work with. Your good customer conduct sets the tone from your end and creates an environment conducive to a good relationship, so the work may go smoother and any problems may be more easily resolved.

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Check The Work
Check the Invoice with Completed Window Cleaning Work

When the Marin County window cleaning is completed in the major cities of Corte Madera, Tiburon, Sausalito, Fairfax, Ross, and Belvedere, or your area, your window cleaning service representative will give you a written invoice that includes:

  • An itemized list of all replacement parts. This should state whether the parts installed were new or reconditioned window parts.
  • The name and physical address of the shop.
  • A list of all work completed, including warranty repairs done at no charge.
  • The total cost for your window cleaning, including the amount charged for labor.
  • Any applicable warrantees provided by the window cleaning manufacturer or the window cleaning company.

It is a good idea to compare the finished window cleaning work with what was written on the invoice. Ask your window washing company representative to walk through the job site and show you the cleaning or repairs. Check what was done against the invoice. During the walk-through, ask if there are any special instructions for maintaining your windows. If you have any questions about the work that was done or the materials used, now is the time to ask.

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Written Warranties
Get Written Warranties for Window Washing Companies

Respectable window washing companies in Marin County may offer warranties on their services or on the materials that they used. All warranty details should be provided in writing during the contract stage or at the conclusion of the job so that you have a record of the guarantees you were promised.

This written warranty information should include:

  • Your responsibility if you place a warranty claim (i.e., if you have to pay for labor or materials, or if you are obligated to pay a prorated amount).
  • The window washing business's name and physical address.
  • What products and services are covered.
  • Whether the window washing company will replace or repair damaged parts in the event of a product failure or damage to your property due to their services or materials.
  • Limitations and exclusions on the materials and workmanship must be in writing.

 

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Top 10 Requests
Service Requests for Window Cleaning Contractors in Marin County

Window washing shops in Marin County provide many cleaning services. However, some services are more common than others.

The following are some of the most familiar requests for local window cleaning shops in Marin County.

Specialized Window Washing Solution
Cleaning solutions used to wash windows vary from company to company. However, many Marin area window cleaning companies provide specialized window cleaning solutions depending on their customers' needs. These may include green window washing solutions (for eco-friendly window cleaning), natural window cleaning solutions, window cleaning solutions that are safe for pets and plants and window washing chemicals that won't harm glass or paint. Ask your window cleaning company if you require a special window washing solution for your job to ensure they can accommodate your needs.

Window Washing Services
Window washing services that use highly specialized equipment to clean windows quickly and thoroughly. Their techniques will keep windows cleaner longer. Window cleaning services will often offer further services, like gutter cleaning, window defogging, skylight cleaning, and even repairing window screens or re-screening your windows.

Window Washing Squeegees
A t-shaped implement that has a crosspiece that is edged with rubber or leather. This is drawn across a surface to remove water in window washing. Some customers request window washing squeegees rather than rag drying because it is less likely to leave lint or streaks if done properly.

Residential Window Washing
Professionally maintaining the cleanliness of windows, mirrors and other glass services of a home, apartment or other residence.

High Rise Window Washing
Window washing services that use highly specialized equipment to clean windows quickly and thoroughly in high rise buildings, including office buildings and high rise apartments.

Window Washing Supplies
Professional window washing supplies includes: ladders and access poles for those difficult-to-reach parts, floor squeegees, window squeegees, pressure cleaners for window washing, special scrapers, microfiber cloths, and industrial strength stain and spot removers.

Pressure Washing for Windows
Using a piece of equipment that forces water or another liquid to quickly to clean surfaces, such as windows, home exteriors, etc. Some window cleaners use pressure washing on windows to remove bird droppings or other stuck-on debris.

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Glossary Of Terms
Glossary of Terms for Window Cleaning Services

Below are key window washing company terms and descriptions that will help you navigate your way through your window washing service from start to finish.

airspace
A measured distance that is between the inner surfaces of the two glass pieces in an insulated unit.

double hung
Type of window that has two vertically moving sashes, with each sash employing balances.

exterior window cleaning
Cleaning the exterior surfaces of windows in homes and businesses.

Below are key window washing company terms and descriptions that will help you navigate your way through your window washing service from start to finish.

airspace
A measured distance that is between the inner surfaces of the two glass pieces in an insulated unit.

double hung
Type of window that has two vertically moving sashes, with each sash employing balances.

exterior window cleaning
Cleaning the exterior surfaces of windows in homes and businesses.

Also known as: professional window cleaning, window cleaning companies, exterior window washing

glass
Any of a large class of materials that have a highly variable mechanical and optical properties that solidify from a molten state without crystallization.

glaze
The process of installing glass or some other glazing materials, like plastic, into a window or a door.

green window cleaning
Cleaning windows using environmentally friendly cleaning supplies.

Also known as: window cleaning service, window cleaning business, window cleaning supplies, window cleaning services, commercial window cleaning, window cleaning equipment, windows cleaning, professional window cleaning, high rise window cleaning, professional window cleaning supplies

fixed frame
Type of window that has no operating parts. It simply has a frame and glass.

fixed panel
The non-operating panel that is in a sliding glass door.

high rise window washing
Window washing services that use highly specialized equipment to clean windows quickly and thoroughly in high rise buildings.

Also known as: commercial window cleaning equipment, window cleaning products, professional window washing solution, telescopic window washing poles, high pressure cleaner, telescopic window cleaning poles, professional window squeegees, window cleaning accessories

insulated glass
A light of glass made up of two sheets of glass, a spacer bar that is filled with desiccant material placed between the two sheets at the perimeter, and a sealant applied around the perimeter of the assembly.

interior window cleaning
Cleaning the interior surfaces of windows in homes and businesses.

Also known as: window squeegees, window cleaners supplies, professional window washing solution, window cleaning pole, window cleaning extension poles

jamb
Sides or outermost vertical side members of a door or window frame.

magnetic window cleaning
A window cleaner that simultaneously cleans the inside and outside of a window which cuts cleaning time. Powerful magnets hold both sponges in place while you clean so that what you clean inside is also cleaned outside.

pressure washing
Using a piece of equipment that forces water or another liquid out of a container very quickly to clean things, such as windows, cars, home exteriors, etc…

Also known as: pressure water wand extension, commercial power washing equipment, mobile pressure washing systems, diesel pressure washer, mobile power washer, pressure wash nozzle, pressure washer tanks

professional window cleaning
Professionally maintaining the cleanliness of windows, mirrors and other glass services in homes and businesses.

Also known as: professional window squeegees, professional washing supplies

pure water window cleaning
The process of cleaning windows using water fed poles and water purification systems for spot free window cleaning without a squeegee.

residential window washing
Professionally maintaining the cleanliness of windows, mirrors and other glass services of a home.

Also known as: residential window cleaning, cleaning windows, residential window cleaners, residential window cleaners, pressure washing

screen
Product that is used with a window or door. It consists of a four-sided frame that surrounds a mesh of wire or plastic material that is used to keep out insects.

squeegee
A T-shaped implement that has a crosspiece edged with rubber or leather. It is drawn across the surface to remove water.

storm window
Attach to or over the prime window. These can be called secondary windows.

thermal break
Type of window that employs an insulating material in the sash and frame members to reduce the flow of heat inward or outward.

waterfed pole
A telescopic pole that is fitted with a brush and a means of delivering water for window cleaning.

Also known as: WFP

weather strip
A part of a window or door that is used to seal the cracks around moving sash or panels against air or water passage, when the door or window is in the closed position.

window washing cleaner
A cleaning solution used to wash windows.

Also known as: window washing brushes, telescopic cleaning poles, window cleaners equipment, professional window cleaning kits, squeegee window cleaner, professional cleaning tools, window cleaner pole, window washing solutions

window washing equipment
Professional window washing equipment includes: ladders and access poles for those difficult-to-reach parts, floor squeegees, window squeegees, pressure cleaners for window washing, special scrapers, microfiber cloths, and industrial strength stain and spot removers.

Also known as: window cleaning equipment, window cleaners supplies, cleaner equipment, professional window washing tools, window cleaner products, commercial cleaning supplies, telescopic window cleaners, window cleaner equipment, system cleaning tools, industrial window cleaning equipment

window washing formula
A homemade or professional formula that is used to wash windows.

Also known as: window washing solution, window washing solutions, glass cleaner, commercial window washing, window washing tips, best window washing formula

window washing services
Window washing services that use highly specialized equipment to clean windows quickly and thoroughly. Their techniques will keep windows cleaner longer. Window cleaning services will often offer further services, like gutter cleaning, window defogging, skylight cleaning, and even repairing window screens or re-screening your windows.

Also known as: window cleaning supply, professional window squeegees, window squeegee, window cleaning product, professional cleaning supplies, window washing bursh, residential cleaning services

window washing solution
A cleaning solution used to wash windows.

Also known as: professional window squeegee, window squeegee, telescopic window squeegee, window washer squeegee, window cleaning accessories, window cleaning materials, window cleaning supplies, window washing solutions

window washing squeegee
A t-shaped implement that has a crosspiece that is edged with rubber or leather. This is drawn across a surface to remove water in window washing.

window washing supplies
Professional window washing supplies includes: ladders and access poles for those difficult-to-reach parts, floor squeegees, window squeegees, pressure cleaners for window washing, special scrapers, microfiber cloths, and industrial strength stain and spot removers.

Also known as: professional power washing equipment, window cleaning supplies, cleaning supplies, window washing solutions, residential window washing, high rise window washing, window washing formula, window washing company, window washing cleaner, window washing squeegee

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Frequently Asked Questions
FAQ for Local Window Cleaning Contractors and Window Washers

Q: Why choose a Diamond Certified Window Washing Company?

Q: Why choose a Diamond Certified Window Washing Company?
A: Diamond Certified helps you choose a window washing company with confidence by offering a list of top-rated local companies who have passed the country’s most in-depth rating process. Only professional window cleaners 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 ongoing research and ratings. And your purchase is backed by the Diamond Certified Performance Guarantee. So you’ll feel confident choosing a Diamond Certified window washing company.

Q: Can windows that appear foggy be cleaned?
A: The seal may be broken if the fog lies between two separate window panes. It could not be cleaned. You could contact the window manufacturer to see if you windows have a current warranty.

Q: Can paint and varnish be removed from windows?
A: Window cleaners can usually safely remove material like paint, varnish, caulk, concrete, stucco, stickers and sheet rock from off the windows. This type cleaning (sometimes considered a construction clean) takes longer and isn’t typically included in a normal estimate.

Q: How often should I clean my windows?
A: Windows should be cleaned a minimum of two times a year. Cleaning twice a year will prevent glass degradation and will maintain your windows’ luster.

Q: Do professional window cleaners make a lot of noise?
A: Certain cleaning services may make a lot of noise, like pressure washing, but other cleaning services, like window cleaning, make very little noise.

Q: Does the rain make the windows dirty again after they have been cleaned?
A: It all depends. Rain is merely distilled water. If the air is clean, rain on your windows will dry leaving no dirt or residue. If it has been raining off and on, and the ground is still damp, then t

Q: Do my curtains need to be taken down before my window washer arrives?
A: Any help is always welcome, but it is not necessary. It will simplify the process though, and many customers will prefer to help out, especially with the removal of window grids. Most technicians can work around most anything in the house!

Q: What is the best time of the year to have windows cleaned?
A: There is not a bad time to have windows cleaned. Many times people are concerned about having their windows cleaned during the winter months because of the possibility of rain; however, rain isn’t a concern, and winter months are as good of a time as any to clean windows. One of the best times to have windows cleaned is when they are dirty!

Q: What is glass degradation?
A: Over time, glass may become permeated with contaminates like oxidization, hard minerals, acid rain, and overspray. Cleaning your windows professionally twice a year and spot cleaning the rest of the year will keep windows bright and shiny.

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