23 Best Window Replacement Companies in Cupertino, CA (Jan 2023)
Window Companies Near Me

Thinking about replacing your home's windows? We've got you covered in this list of the best window installation companies.

We analyzed all the top window installers in Cupertino and selected the top 23 based on:

  • Customer reviews
  • Window replacement expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated January 12, 2023

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Whether you're doing renovations or have windows that need repairs, windows play a vital role in conserving your home's electricity. When it's the middle of summer, your outdated and drafty windows could be making your home more difficult to cool and more uncomfortable for you.

Installing new, efficient windows on your house can help you save money every month on your electricity bills — and you can help the environment, too.

We've made a guide on the top installation companies to help you in your search, so you can not only enjoy brand new windows, but also save money on your electric bills.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Great industry reputation
  • Member of US Green Building Council
  • More expensive than competition

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Limited additional services

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Great industry reputation
  • EnergyStar Partner
  • Quality of service will depend on your area

Best Window Replacement Companies in Cupertino

The EcoWatch Reviews team assessed dozens of window installation companies across Cupertino to narrow our list down to the top ones. The installers we've mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Award-winning company
  • Pros icon Great industry reputation
  • Pros icon Member of US Green Building Council
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen offers the best availability in Cupertino. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the windows industry, and it currently serves nearly every state except Mississippi and West Virginia. Its reputation is backed by hundreds of positive reviews on customer review websites.

Andersen may be the company for you if you're looking for one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Cupertino?

Andersen doesn't have any pricing information displayed on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on pricing, you can request a quote from the company.

Milgard Windows & Doors logo
FAST QUOTE
as little as 30 seconds
Excellent Reputation

Milgard Windows & Doors

★★★★★
BBB Rating: A
Locations: West Coast
Founded: 1962
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Wide network of installers
  • Pros icon Lifetime warranty available
Cons:
  • Pros icon Limited additional services

Milgard Windows & Doors offers the best local installation in Cupertino. Milgard has been in the window business for about 60 years. The provider has plenty of positive reviews from customers online.

Milgard may be the company for you if you want one that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.

Energy Efficiency of Milgard Windows & Doors Windows

The company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised. Not all of Milgard's offerings are Energy Star certified, so make sure you mention that you'd like Energy Star windows when inquiring.

How much does Milgard Windows & Doors cost in Cupertino?

Milgard doesn't have any pricing information listed on its website, but it offers different kinds of windows at varying price points. The best way to know for sure is to get a free quote from the company.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Large serice area
  • Pros icon Great industry reputation
  • Pros icon EnergyStar Partner
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Cupertino. Window World has been in the window installation industry for about 27 years. Many positive reviews on customer review websites back the company's reputation.

It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's offerings are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.

How much does Window World cost in Cupertino?

Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on pricing, you can request a quote from the company.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Limited service area
  • Pros icon Some installations carried out by third-party contractors
  • Pros icon Quality of service will depend on your area

Universal Windows Direct offers the best warranty in Cupertino. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This window installation company has been in business since 2002 and currently provides services to 27 states nationwide. The provider has many glowing reviews from customers online.

You may want to consider opting for Universal if you're interested in a company that has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.

How much does Universal Windows Direct cost in Cupertino?

Universal doesn't have any prices displayed on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. For more detailed information on pricing, you can inquire about a quote from the company.

Please note that the companies in this section are national, meaning the quality of the service may depend on your local crew. We have tried to be unbiased and transparent by describing pros and cons for each company.

More Window Replacement Companies in Cupertino

Renewal by Andersen of San Francisco

Hayward, CA
4.3
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://www.renewalbyandersen.com/window-company/890-san-francisco-ca/retailer
Address: 30806 Santana St, Hayward, CA 94544
Phone: (510) 803-3110

Quality First Home Improvement, Inc.

Campbell, CA
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.qualityfirsthome.com/locations/california/san-jose-ca/
Address: 485 Salmar Ave, Campbell, CA 95008
Phone: (800) 859-7494

Global Glass Enterprise Inc.

San Jose, CA
4.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.goglobalglass.com/
Address: 14768 Ronda Dr, San Jose, CA 95124
Phone: (408) 799-3715

Window Replacement San Leandro

San Leandro, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://bestexteriors.com/
Address: 1300 Fairmont Dr, San Leandro, CA 94578
Phone: (510) 722-0016

Best Exteriors

San Leandro, CA
4.0
★★★★★
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://bestexteriors.com/
Address: 689 E 14th St, San Leandro, CA 94577
Phone: (510) 961-3697

Window Replacement Dublin

Dublin, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://bestexteriors.com/
Address: 4530 Dublin Blvd, Dublin, CA 94568
Phone: (925) 587-4767

Window Replacement Livermore

Livermore, CA
4.0
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 1374 Railroad Ave, Livermore, CA 94550
Phone: (925) 495-1522

Window Replacement Pleasanton

Pleasanton, CA
4.0
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Reliable Service

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: Pleasanton Ave, Pleasanton, CA 94566
Phone: (925) 400-8953

Window Replacement Alameda

Alameda, CA
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows
  • Pros icon Educational Website

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 555 Ralph A Memorial Pkwy, Alameda, CA 94501
Phone: (510) 722-0010

Window Replacement Redwood City

Pleasanton, CA
4.0
★★★★★
  • Pros icon Dependable Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 649 Main St, Pleasanton, CA 94566
Phone: (650) 569-1968

Roxy Glass

Morton Ave, CA
4.0
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://bayareawindowglass.com/
Address: 7401-A, Morton Ave, Newark, CA 94560
Phone: (510) 400-7788

Window Replacement Fremont

Fremont, CA
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 43713 Boscell Rd, Fremont, CA 94538
Phone: (510) 722-0717

Window Replacement Union City

Union City, CA
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Dependable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 4126 Dyer St, Union City, CA 94587
Phone: (510) 722-0020

Window Replacement San Mateo

San Mateo, CA
4.0
★★★★★
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website
  • Pros icon Arrives on Time

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://bestexteriors.com/
Address: 514 S Norfolk St, San Mateo, CA 94401
Phone: (650) 356-8663

Best Exteriors

Oakland, CA
4.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 1301 E 31st St, Oakland, CA 94602
Phone: (510) 961-3175

Window Replacement Hayward

Hayward, CA
4.0
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 27531 Tampa Ave, Hayward, CA 94544
Phone: (510) 606-4707

Heritage Home Solution

San Jose, CA
4.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Reliable Service

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames

Website: https://heritagedoorsandwindows.com/
Address: 3801 Charter Park Ct ste b, San Jose, CA 95136
Phone: (408) 266-8303

A1 Bay Area Glass

San Jose, CA
3.9
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://a1bayareaglass.net/
Address: 1561 Virginia Pl, San Jose, CA 95116
Phone: (408) 910-9878

Epic Home Upgrades and Construction

San Leandro, CA
3.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Locally Recognized for Quality
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Appointment Windows

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: http://epichomeupgrades.com/
Address: 303 W Joaquin Ave #103, San Leandro, CA 94577
Phone: (888) 714-3742

Integrity Windows & Doors

San Jose, CA
3.8
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: http://www.408windows.com/
Address: 4238 Monterey Rd Unit B, San Jose, CA 95111
Phone: (408) 225-2600

R & M Quality Windows & Doors

Newark, CA
3.8
★★★★★
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.randmqualitywindowsanddoors.com/
Address: 5588 Central Ave #A, Newark, CA 94560
Phone: (510) 796-0100

Danville Glass Company

Danville, CA
3.8
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Reliable Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Sliding Glass

Website: http://www.danvilleglasscompany.com/
Address: 4115 Blackhawk Plaza Cir #100, Danville, CA 94506
Phone: (925) 277-0555

Landmark Exteriors

Livermore, CA
3.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://landmark-exteriors.com/
Address: 147 A N Livermore Ave, Livermore, CA 94550
Phone: (925) 551-8070

How Installing Energy-Efficient Windows in Cupertino Saves You Money

Switching to energy-efficient windows can improve the comfort of your home and help you save on energy bills. Here's more information on how switching out your windows could benefit you:

  • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
  • Protect your investment: If you have a relatively old home, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help increase the value of your house if you decide to sell.
  • Reduce your carbon footprint: By using less energy after switching to energy-efficient windows, you'll also be lowering your carbon dioxide emissions by about 12%, according to Energy Star.
  • Save money on energy bills: The Department of Energy estimates that heat gained or lost through windows accounts for around 25-30% of energy use in your home. Switching to energy-efficient windows can help decrease that number, which helps you save more on your bills.

Estimated Cost of Window Replacement in Cupertino

Windows come in varying purposes, styles and shapes, so costs and services will differ greatly depending on your project. Below, we go over the average cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

The average cost to replace a single window is about $600 but can range from $200 to $1,200. But costs will vary significantly based on the number of windows you need, the current condition of your home, your location and the quality of your products. Many window companies also offer replacement door installations and other add-ons like shutters, baths, coating and more. These extra services will increase overall project costs.

Keep in mind that energy-efficient windows may have a higher price, but Energy Star estimates the upgrade will save you between $101 and $583 per year when replacing single-pane windows and between $27 and $197 per year when replacing double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.

Costs will also vary based on the material you choose for your window frames. Aluminum frames are the least expensive. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made from wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

In general, there are two kinds of window replacement services you can get: full-frame and pocket installations.

Full-frame installations are usually recommended when you want a new style or your window has a lot of deterioration. With this service, your professionals will replace the total window, including the sill, frame and trim. A pocket installation means replacing a window within the existing frame, which is generally cheaper than a full-frame installation.

Your window installation company should be able to help you understand what's best for your needs. In Cupertino, the decision will mostly be based on how old your home is and if there's any damage. Wood can decay if it's not maintained properly over the years, so it's good to have a professional evaluate your frames and window sills.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Award-winning company
  • Great industry reputation
  • Member of US Green Building Council
  • More expensive than competition

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Limited additional services

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Great industry reputation
  • EnergyStar Partner
  • Quality of service will depend on your area

How We Choose the Best Window Installers in Cupertino

EcoWatch reviews differ from most reviews because we look at these companies through a sustainability lens. We have evaluated the best window installation companies in Cupertino primarily based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve the Cupertino area so you can find the best window installation company near you.

Work Quality

When installing new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand you get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

We analyzed patterns in recent online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including warranty, cost, quality of parts, quality of installation, professionalism and more.

Cost

This one is a give-and-take: similar to other services, cheap window installers may not provide the highest quality service. Still, we want to make sure we're highlighting companies that offer a range of price and financing options so they're accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. That's why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Because of Cupertino's climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Cupertino window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

Cupertino, CA Window Replacement FAQs

How much should window installation cost?

The average cost of installing one window can range between $450 and $650. There are a variety of factors that affect the price, including styles and sizes of windows, local labor costs, your property's location, the materials used in designing the windows, how energy-efficient the windows are and the number of windows.

Which kind of window is the best?

Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you'll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — this means they're certified energy-efficient by the U.S. Department of Energy.

When do I have to use a window installation company?

You should hire a window installation company whenever you need new windows. Installing windows is a complicated process that can be difficult and time-consuming, so it's best left to the professionals.

What time of year is the best time to replace my windows?

Although you can install windows any time of year, warmer weather is often better for installing replacement windows. Additionally, it shouldn't be raining, since rain can make the installation more difficult.

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