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10 Best Window Replacement Companies in Cupertino, CA

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Written By David Cusick

Last Updated June 2024

Windows play an important role in the appearance of your house, as well as its energy efficiency. Upgrading your windows is an excellent way to increase the value of your home. Outdated windows can cost you in electric bills — about an extra $461 a year in Cupertino. The Department of Energy estimates that 25–30% of your home’s heat or cool air could be lost through your windows. When searching for a window installer, it's important to pick the right one, which is why we've written this guide to the top window installers in Cupertino.

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4.1/5
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Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty
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4.0/5
  • Award winning company
  • Products made in the US
  • Knowledgeable sales representatives

Top 10 Best Window Replacement Companies in Cupertino

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Renewal by Andersen of San Francisco

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30806 Santana St, Hayward, CA 94544 (510) 803-3110 renewalbyandersen.com

Educational website

Free assessment

Good customer service

Price transparency

Services Offered

Window replacement/installation
Skylights
Double-hung
Glass doors
Bay windows

Roxy Glass

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7401-A Morton Ave, Newark, CA 94560 (510) 400-7788 bayareawindowglass.com

Educational website

Timely service

Good customer service

Price transparency

Free assessment

Services Offered

Bay windows
Glass repair
Triple pane glass
Tempered glass
Energy-efficient options
Mirrors
Custom glass
Window replacement/installation
Glass doors
Glass showers

Best Exteriors

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1999 Harrison St #10219, Oakland, CA 94612 (510) 327-0277 bestexteriors.com

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Educational website

Good customer service

Free assessment

Timely service

Services Offered

Bay windows
Fiberglass frames
Double-hung
Wood frames
Glass doors
Window replacement/installation
Energy-efficient options
Vinyl frames

California Glass of Vallejo, Inc.

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1014 Broadway, Vallejo, CA 94590 (707) 643-5609 calglassofvallejo.com

Good customer service

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Timely service

Free assessment

Educational website

Services Offered

Mirrors
Custom window designs
Glass repair
Custom glass
Glass doors
Window replacement/installation
Bay windows
Glass showers

Super Mario Glass Inc

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544 Lewelling Blvd b, San Leandro, CA 94579 (510) 324-8798 supermarioglass.net

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Educational website

Good customer service

Free assessment

Price transparency

Services Offered

Window replacement/installation
Bay windows
Mirrors
Custom glass
Glass showers
Glass repair
Glass doors
Screen repair
Window repair

Sunset Glass Inc

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4301 Irving St, San Francisco, CA 94122 (415) 664-1626 sunsetglassinc.com

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Services Offered

Fiberglass frames
Mirrors
Glass showers
Vinyl frames
Glass doors
Tempered glass
Wood frames
Metal frames
Window replacement/installation

North Glass Windows & Doors

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105 Main St, Ben Lomond, CA 95005 (831) 336-2288 northglass.net

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Good customer service

Services Offered

Window repair
Mirrors
Custom glass
Skylights
Glass doors
Glass showers
Window replacement/installation
Glass repair

Celtic Glass, Inc.

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106 Burrows St, San Francisco, CA 94134 (415) 468-0980 celticglassinc.com

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Free assessment

Good customer service

Services Offered

Bay windows
Mirrors
Energy-efficient options
Wood frames
Glass showers
Vinyl frames
Window replacement/installation
Window repair
Glass doors
Glass repair

J & M Windows and Glass

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745 E McGlincy Ln, Campbell, CA 95008 (408) 371-7255 jandmglass.com

Good customer service

Timely service

Educational website

Free assessment

Price transparency

Services Offered

Double-hung
Energy-efficient options
Bay windows
Skylights
Mirrors
Glass showers
Window replacement/installation
Glass doors

Novato Glass Inc

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1020 Reichert Ave, Novato, CA 94945 (415) 897-5117 novatoglassinc.com

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Good customer service

Free assessment

Services Offered

Custom glass
Mirrors
Glass showers
Energy-efficient options
Window replacement/installation
Glass doors
Bay windows
Skylights
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In Cupertino?

Window installation and replacement costs depend on several factors, including the materials you choose, how difficult your windows are to access or install, and the number and size of the windows. On average, Cupertino homeowners spend about $300 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Replacing your old windows with new energy-efficient ones can significantly improve your home's comfort, noise reduction, appearance, insulation, and value. Clear indicators it's time to invest in new windows include:

  • Fogging between window panes, condensation issues, or rotting window frames letting in moisture.
  • High energy bills and discomfort due to poor window insulation.
  • Cold air and drafts leaking in through old, loose-fitting windows.
  • Outdated and inefficient window styles that take away from your house's curb appeal.
  • Windows that are difficult to close, open, and lock properly due to wear and age.

How To Choose a Window Company

Finding a truly qualified windows installation contractor is the key to a successful project. Below, we cover the main factors to consider when making your selection.

Experience

Make sure you choose a seasoned local installer with a proven track record of successfully installing and replacing windows. Companies that have served Cupertino for years are more likely to understand the local climate and local homeowners' needs. Get references from recent clients to learn more about a provider’s service.

Certifications

Choose companies that are certified by leading window brands, and that have Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Being certified indicates that they've gotten suitable training in installation best practices. Make sure installers are staff rather than subcontractors, and confirm the technicians doing your job are certified.

Reputation

Read through online reviews, check the Better Business Bureau (BBB), and request local references. Review customer feedback to make sure that the contractor consistently provides quality work and good customer service. Avoid providers that have complaints of shoddy work or unfinished jobs.

Process

The right company will take time to provide you with a comprehensive project plan, timeline, expectations, and reviews of all material and installation options. Beware of unclear quotes or timelines that lack clear and specific information. Look for regular communication throughout the process to avoid surprises once the project gets underway.

Warranties

Research window companies that back their installations with guarantees, and that offer warranties on products and labor. This demonstrates faith in their work. Also look for unlimited lifetime warranties that can transfer to new homeowners.

Materials

Make sure the window company offers windows that are built to last and top energy-saving window brands that fit your budget. Look for good energy ratings, design flexibility, and enhanced UV protection. Check that the window materials also come with manufacturer warranties.

Frequently Asked Questions About Window in Cupertino, CA

In Cupertino, the optimal time to install windows is during the winter when the temperature is not as high, so the windows can seal and settle properly. A professional local window installer in Cupertino will be able to tell you when the best time is to install windows on your house.

The best type of replacement window for your Cupertino home will depend on your home's age, as well as your style preference and budget. You'll want to consider the style of your home — such as if it's older — so your new windows match. Wood windows can provide a traditional look and appearance, while vinyl-framed windows tend to be popular in newer homes. Fiberglass windows are also a popular choice, as they can be energy efficient and long-lasting.

Windows made from vinyl, fiberglass, or wood are known to last the longest, with some lasting more than 45 years. Vinyl windows are particularly durable and low-maintenance, making them a great choice if you want windows that can last a long time. Double or triple glazing can help reduce your heating and cooling bills over time. This is especially helpful during Cupertino's hot summers.

It depends on your budget and the condition of your windows. If your windows are in decent condition, you might only replace the ones that really need replacing. If you're in an area that has lower energy costs, you may be able to wait to replace all your windows.

After window installation, it's important to make sure that the windows are properly sealed and to check for any air leaks. You should also clean the windows at least once a year to prevent debris from building up and leading to damage. Additionally, you should inspect the window sills and frames once a year to make sure that the seals are not wearing away or breaking.

Yes, many window companies offer payment plans for their services. Different companies have their own financing options, so you should do your research to find the best option for you. Depending on your income level, which is a median of $223,667 a year in Cupertino, you may be able to qualify for special payment plans.

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