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Diamond Certified Company Report

American Window and Door Systems, Inc.

Diamond Certified Company Report

American Window and Door Systems, 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 300 VERIFIED CUSTOMERS i

Charles H.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

1 of 300

Quality 10
10 10
Loyalty Yes
CRITIQUE

They're an excellent supplier for windows and doors. Their pricing is fair, they're prompt, and they're efficient.

They did a spectacular job. They were very customer service-oriented and personable. The quality of their product is top-of-the-line.

Vic C.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

2 of 300

Quality 10
10 10
Loyalty Yes
CRITIQUE

They're great. They showed us several options and walked us through everything.

After initially reaching out to them, they came out the very next day to get things moving along. They finished the job on time, and they cleaned up very well.

Amy K.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

3 of 300

Quality 10
10 10
Loyalty Yes
CRITIQUE

It was fair price for a good job, Very reliable workers and good quality.

I guess the good customer service. They were responsive and followed through on what they said they were going to do.

Read All 300 Survey Responses at Ratings View
Diamond certified VIDEO PROFILE
Diamond certified company PROFILE

American Window and Door Systems, Inc. provides and installs energy-efficient replacement windows and doors for residential and commercial clients in Napa, Solano, Contra Costa, Sonoma, and Marin Counties. The family-owned and operated company is an authorized dealer for Simonton, All Weather Architectural Aluminum, PlyGem, Velux, WeatherShield, Kolbe, Western Window Systems, Simpson Door Company and several other leading manufacturers. It can complete most installation jobs in one day, and it supplements its work with various warranties, including those that cover glass breakage and screen tear.

Owner Eddy Deniz says American Window and Door Systems’ team is dedicated to making each client’s window installation experience a positive one. “Our sales staff is trained to help clients choose products that fit their needs and budgets, and our lead installers bring more than 50 years of combined industry experience to every job. We work efficiently, carefully and respectfully to complete projects on schedule.”

American Window and Door Systems emphasizes the importance of customer satisfaction—approximately 80 percent of the company’s work comes from referrals, and Mr. Deniz says it has enjoyed a complaint-free streak on its contractor’s license of more than 35 years. “Our success is based on three factors: quality service, superior products and competitive prices.”

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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 RESOURCE VIDEO PLAYER

DIAMOND CERTIFIED RESEARCHED CAPABILITIES ON American Window and Door Systems, Inc.

COMPANY CONTACT
Service AREA

Napa County
Solano County

Contra Costa County
Sonoma County
Marin County

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SERVICES PERFORMED

Energy-Efficient Replacement Windows & Doors
New Construction & Commercial Projects
Shower Enclosures
Mirrors
Entry Doors
Skylights

BRANDS Supported
  • All Weather Architectural Aluminum

  • Simonton Windows

  • Tru Frame

  • Ply Gem

  • Kolbe

  • Western Window Systems

  • Simpson Door Company

  • Weather Shield Windows and Doors

  • Velux

DIAMOND CERTIFIED RESEARCHED ARTICLES ON American Window and Door Systems, Inc.

A look at American Window and Door Systems’ Napa facility

Company Profile

American Window and Door Systems, Inc. provides and installs energy-efficient replacement windows and doors for residential and commercial clients in Napa, Solano, Contra Costa, Sonoma, and Marin Counties. The family-owned and operated company is an authorized dealer for Simonton, All Weather Architectural Aluminum, PlyGem, Velux, WeatherShield, Kolbe, Western Window Systems, Simpson Door Company and several other leading manufacturers. It can complete most installation jobs in one day, and it supplements its work with various warranties, including those that cover glass breakage and screen tear.

Owner Eddy Deniz says American Window and Door Systems’ team is dedicated to making each client’s window installation experience a positive one. “Our sales staff is trained to help clients choose products that fit their needs and budgets, and our lead installers bring more than 50 years of combined industry experience to every job. We work efficiently, carefully and respectfully to complete projects on schedule.”

American Window and Door Systems emphasizes the importance of customer satisfaction—approximately 80 percent of the company’s work comes from referrals, and Mr. Deniz says it has enjoyed a complaint-free streak on its contractor’s license of more than 35 years. “Our success is based on three factors: quality service, superior products and competitive prices.”

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Company Philosophy

“We don't believe in using high-pressure sales tactics. Our initial estimates are competitive and fair; we won't start with an inflated price and try to coerce business by offering discounts. We respect our clients and take care of their needs throughout the entirety of their projects.”

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Comparative Summary

American Window and Door Systems, Inc. has been selling and installing replacement windows throughout the Greater Bay Area since 1992. The family-owned and operated company has experience with all types of windows, including products from leading manufacturers like Simonton, Cascade, Milgard and Andersen. “Our salespeople are very knowledgeable,” says owner Eddy Deniz. “We don’t engage in high-pressure sales tactics or start with inflated prices and then negotiate down. We quote fair prices from the start.”

Unlike window companies that place more importance on their subcontractors’ availability than their customers’ schedules, American Window and Door Systems takes a straightforward, detailed approach to every project. Once a client contacts the firm, it sets up an appointment to measure the home or business and help select the type, brand and model of windows to be installed. “Often, we can provide a price quote right then and there,” says Mr. Deniz. “After the contract is signed, we order the windows and set an installation date. Our clients really appreciate such a streamlined process.”

Another distinguishing feature of American Window and Door Systems is its ability to quickly complete window installations. Most jobs take less than one day to finish, and the company provides long-term warranties for both labor and materials. “We always offer at least a five-year warranty, but it’s usually longer, depending on the brand,” says Mr. Deniz. “With Simonton windows, for example, we provide a lifetime warranty.”

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Industry Info

Choose the right type of window for your particular environment and house style. Generally, it’s a good idea to rely on a professional recommendation when choosing a window style for your house, but it’s worthwhile to note that some window designs are inherently more efficient than others. Here’s a quick breakdown of the most common types:

Vinyl
Vinyl frames are typically the least expensive and virtually maintenance-free. They’re only available in light colors, though, because dark colors absorb too much heat from the sun and warp the frame.

Wood
A popular choice for aesthetic reasons, wood frames are typically only a little more expensive than vinyl, but they require diligent maintenance in order to prevent rot. They’re available in many species of wood and can be stained to match any existing décor.

Fiberglass/composite
Fiberglass frames are more expensive than wood or vinyl, but they’re also more durable. They require virtually no maintenance and can be painted any color (faux wood grains are also available).

Aluminum-clad
Aluminum frames are typically the most expensive, but they’re also maintenance-free and can take almost any color. They may not be suitable for coastal environments where saltwater is a concern.

Double-hung
These are traditional units in many homes across the United States, and they’re especially common in pre-war buildings. With double-hung windows, the bottoms slide up to open the units. They can be efficient choices, but they also have the potential to allow air intrusion between the sliders.

Casement
Popular in climates where wind is an issue, casements actually seal themselves off tighter when wind blows in toward the house. They require maintenance on hinges and seals to ensure their continued stability and efficiency.

Don’t overlook the importance of proper installation. Even the most expensive window unit won’t perform effectively if it’s not installed correctly. Be wary of any contractor who relies too heavily on expanding foams or sealants to get a window to fit—these materials aren’t waterproof and can lead to problems down the road. Pre-installation waterproofing, often completed long before the windows are installed, is the best option.

When shopping for energy-efficient windows, your first guide should be the National Fenestration Rating Council (NFRC) label. The NFRC is a nonprofit organization that provides homeowners and contractors with a standardized, unbiased method for comparing different brands and types of windows. The label will tell you a window’s U-factor, solar heat gain coefficient (SHGC) and visible light transmittance:

• U-factor is a measurement of the window’s rate of non-solar heat loss or gain. The lower the U-factor, the greater a window’s insulating value.
• SHGC is the fraction of solar radiation admitted through a window or skylight. The lower a window’s SHGC, the greater its shading ability.
• Visible light transmittance is the percentage of visible light that’s transmitted through glass. The higher the number, the more light the window admits.

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Frequently Asked Questions

Q: What are some of the benefits of installing energy-efficient windows?

A: Aside from the vast amounts of energy and money you’ll save, energy-efficient windows improve comfort; reduce condensation; decrease drape, carpet and furniture fading; and lower mechanical equipment costs.

Q: How long will it take to install new windows in my home?

A: A typical home that has existing single-pane windows can usually be done in one day.

Q: Who will install my windows?

A: We employ our own full-time installers. We don’t use subcontractors, so if you have any problems with your installation, you deal directly with us.

Q: What is low-E coating?

A: Low-E coating is a virtually invisible coating of metal and metallic oxides that’s applied to glass. Low-E coatings provide year-round savings by reflecting sunlight and keeping your home cooler in the summer and warmer in the winter.

Q: Do you completely remove my old windows?

A: No. With replacement/retrofit windows, the outer perimeter frames of the old windows are left in place. The new replacement windows then fit over the top of the old frames and are sealed shut. By doing this, we ensure the exterior of your home isn’t damaged and there’s no patchwork to do on the stucco or wood siding. This can save thousands of dollars on the installation.

Q: Why do some companies remove the frame completely?

A: For a while, many companies were removing frames and installing replacement windows. That’s a problematic practice, because instead of being sealed to the old window frame, the replacement window is sealed to the home’s exterior. Since stucco and other sidings aren’t completely waterproof, this creates problems with sealing the window and preventing leaks. Because of this, we don’t recommend removing the old frames when installing a replacement window. If your dealer or contractor suggests using this method, look to somebody else.

Q: What kind of warranties do you offer?

A: We offer a fully transferable five-year warranty on all our workmanship. In addition, all the products we carry offer lifetime manufacturers’ warranties on any defects. Our higher-quality windows, like Simonton, carry transferrable lifetime warranties.

Q: Do I have any other installations options?

A: Yes. We can also install ‘nail-on’ windows, which are found in most newly built homes. To remove the old windows and install nail-on windows, we cut back the exterior stucco or siding of the home; remove the old window; install the new window using nails, flashing and caulk; and patch up the stucco or siding. Since this installation process is much more labor intensive, it’s considerably more expensive.

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SELECTED PHOTOS FROM American Window and Door Systems, Inc.

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DIAMOND CERTIFIED EXPERT CONTRIBUTOR ADVICE & TIPS FROM Eddy Deniz

Expert CONTRIBUTOR PROFILE
  • Eddy Deniz is owner of American Window and Door Systems, Inc., a Diamond Certified company. He can be reached at (707) 879-8946 or by email.

Eddy Deniz: Adding Value

By James Florence, Diamond Certified Resource Reporter

NAPA—After finding success in commercial construction, Eddy Deniz took an opportunity to do what he loved on a smaller, more specialized scale. “I was born and raised on a dairy farm in Petaluma,” he says. “My father and I always did a lot of building and maintenance around the farm, and as a result, I gravitated toward construction. I went to college for construction management and then got a job with a large commercial firm. However, I had a passion to start my own business—something smaller and more akin to the environment I grew up in. I decided I should specialize in one aspect of the industry, so I chose windows and doors. In 2020, I got the opportunity to purchase American Window and Door Systems, which allowed me to branch out into the residential market.”

Today, Eddy says his favorite part of his job is adding value to his customers’ homes and lives. “I like seeing the finished product and the added value for the homeowner—not just property value, but aesthetic value and improved energy efficiency as well. I take a lot of pride in what my team and I are able to accomplish for our clients.”

A resident of Sebastopol, Eddy spends most of his time outside of work with his wife, Bethany, and their two children. “We enjoy going to the beach, attending the kids’ sporting events and vacationing at Lake Tahoe. I also have a large extended family, so we like getting together for barbecues and birthday parties.” Additionally, Eddy likes playing golf when the opportunity arises.

In regard to a professional philosophy, Eddy espouses the value of honesty. “We try to be upfront and honest with our clients,” he affirms. “I think it benefits everyone to be straightforward and tell the client what works and what doesn’t work. Whereas some companies try to quote the cheapest price or sell their customers something they don’t need, we just want to give them a good value for their money.”

When asked the first thing he’d do if he were to retire tomorrow, Eddy says he’d return to his farming roots. “I’d probably go back to the farm lifestyle—get some animals, plant some crops and spend my days working the land. I also have a couple of vehicles on my property that I’ve been meaning to fix up, so I’d finally be able to get those projects finished.”

Ask Me Anything!

Q: If you could travel anywhere in the world, where would you go?
A: I’d tour Europe and see all the historical sites.

Q: What was your favorite Halloween costume when you were growing up?
A: A Teenage Mutant Ninja Turtle.

Q: What’s your favorite thing to do on a rainy day?
A: Stay inside and watch sports.

Q: What are your favorite sports teams?
A: The San Francisco Giants and the San Francisco 49ers.

Q: Did you play any sports in high school?
A: I played football. I was a wide receiver and a safety.

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Expert articles
  • 3 Reasons to Consider Window Replacement

    NAPA—It’s not always easy to know when it’s time to replace your windows, but there are a few signs you can look for, as well as considerations to make. Here are three reasons to consider window replacement:

    Failed window seals
    Have you noticed the presence of condensation or rust in between the dual panes of your windows? These are both indicators of a failed seal, which is a common sign that replacement is needed.

    Diminished functionality
    Another reason to consider window replacement is if your windows have ceased to function the way they’re supposed to—for example, if they aren’t able to slide freely or open properly.

    Improved energy efficiency
    If your home has single-pane windows or outdated dual-pane windows, you should consider upgrading them with stronger, more modern products. Besides reducing your energy bills, upgrading old windows can greatly increase your in-home comfort level.

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Expert video tip
  • Video: 3 Factors For Window Replacement

    Complete Video Transcription

    NAPA—Eddy Deniz: Some common things to look for, to consider when it’s time to replace your windows are condensation on the window glazing itself, or you’ll see rust on the interior of the panes, which would indicate failed seals of the window. You would also consider replacing windows when you currently have single pane windows—when you went on to upgrade to double pane windows to help reduce your energy bills, as well as the solar heat gain. Another obvious reason to replace your windows if it’s not functioning properly anymore, whether it’s not sliding freely or opening the way it’s supposed to.

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American Window and Door Systems, Inc. WEBSITE AND EXTERNAL FEED
  • American Window and Door Systems, Inc. SOCIAL MEDIA FEEDS
Diamond Certified RATINGS ON American Window and Door Systems, 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 300 VERIFIED CUSTOMERS i

Charles H.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

1 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They're an excellent supplier for windows and doors. Their pricing is fair, they're prompt, and they're efficient.

They did a spectacular job. They were very customer service-oriented and personable. The quality of their product is top-of-the-line.

Vic C.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

2 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They're great. They showed us several options and walked us through everything.

After initially reaching out to them, they came out the very next day to get things moving along. They finished the job on time, and they cleaned up very well.

Amy K.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

3 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

It was fair price for a good job, Very reliable workers and good quality.

I guess the good customer service. They were responsive and followed through on what they said they were going to do.

Miguel C.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

4 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

Good quality and the job they did was a 10.

Everything was great.

Tami B.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

5 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They are amazing from start to finish. They are the one company that you don't have to worry about. We have been using them for 20 years.

We have used the same sales person from the get go. She is amazing. They call to check in and update you when the product is in and then to schedule, just really good.

Brad B.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

6 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

Great customer service

They do good work.

Roy Y.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

7 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

I have recommended them many times.

They did a real complete, clean and fast job.

Laurie A.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

8 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They are very thorough and I have had no problems communicating with them. They did our home in Santa Rosa and our rental in Rohnert Park.

Those two things

Gary A.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

9 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They have an excellent product and we are completely happy with it.

The windows work great. They completely solved our problem. They are durable and the work crew is competent.

Julie S.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

10 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

Good products, friendly and quick installation, they are a family operated business.

That they are a family operated business

David R.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

11 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

I have recommended them to my neighbors. They did a great job and the windows are good quality. My neighbors who I recommended them to have already had theirs installed.

There is no pressure. They are down to earth with giving an estimate with the options involved, no pressure and professional.

Joel L.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

12 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

I would tell them that I highly recommend them.

Everything, I was very happy with with what we got and how they did it.

Cathy T.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

13 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

I would recommend them.

It's been a long time, but we really like them.

David B.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

14 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

Good service, good communication, and the job was done quickly. They also cleaned up after themselves. We are happy.

Good quality product

Pete F.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

15 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They did a good job and the price was good. They use really good products, so that years later, if you need parts, you can get them. They are not putting in the cheapest brands.

That I can get window replacements and parts for an extended period of time

Roland H.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

16 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They have the best deal on windows that you can find.

They have done 2 houses for us, replacing the windows. They are very responsive. I had a couple of problems with a window at each house, but it was resolved without any hassles, and that is important.

Paige T.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

17 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They were great, the installation was good, they came when they said they would and we had no issues.

That we had no issues, and they did a great job.

Cathy B.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

18 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

I would use them again.

They were thorough and professional.

Maria S.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

19 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They are very nice, helpful, and do a great job.

They did a great job.

Emilio T.

VERIFIED American Window and Door Systems, Inc. CUSTOMER

20 of 300

Quality 10
10
Loyalty Yes
CRITIQUE

They deserve "10" out of "10".

Customer service, communication and very professional on the job site

Read All 300 Survey Responses at Ratings View
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