Top Rated Window Companies Serving Los Altos, CA

If you really care about choosing a quality window company, we’re here for you. Here’s your access to the best window companies serving Los Altos including 94024, 94022 and 94023. These window experts provide window insulation and window glass repair, and they also work on window seal repair, energy-efficient windows and casement windows. For 22 years we’ve conducted the most accurate ratings and deepest research of local companies, so you’ll be confident in choosing.

  • Last Updated May 15, 2026
  • 107,620 people sourced companies in Windows
    7,904 Verified Windows Customers Surveyed
7,904
107,620
1 of 3
Anderson Window & Door Installation provides a wide selection of windows and doors for residential customers in Santa Clara and San Mateo Counties. Th...
Read More

Main Services

Windows
loarrowgo
Doors
loarrowgo

Additional Services

Window and Door Installation

Brands

Andersen, Milgard, Simpson Door Company

Coverage Areas

Santa Clara County, San Mateo County

Walk-Ins Welcome
Walk-Ins Welcome
Appointments Available
Appointments Available
Live Phone Call Answers
Live Phone Call Answers
Parking On site
Parking On site
696 Auzerais Avenue, San Jose, CA 95126
Hours CLOSED NOW
License:
560601
2 of 3
Quality First Home Improvement, Inc. is an award-winning contractor that sells and installs a wide range of home improvement products, including roofi...
Read More

Main Services

Roofing
loarrowgo
Windows
loarrowgo
Doors
loarrowgo
Kitchen & Bath Contractor
loarrowgo
Coating - Exterior
loarrowgo

Additional Services

Exterior Coating, Painting, Patio Covers, Sunrooms, Kitchen & Bathroom Remodeling, Stamped & Colored Concrete

Brands

GAF, Mission Solar, Enphase Energy, ProVia, TEX-COTE, Duralum, ProCat Insulation

Coverage Areas

Northern California, Northern Nevada

Family Owned
Family Owned
Established in 2005
Established in 2005
Senior Discount
Senior Discount
Special Discount
Special Discount
Hours CLOSED NOW
License:
875772
3 of 3
Able Glass Company provides and installs a variety of products for residential clients in Santa Clara and San Mateo Counties. The company’s main focus...
Read More

Main Services

Windows
loarrowgo
Glass
loarrowgo

Additional Services

Replacement Windows, Custom Screens, Mirrors, Mirror Doors, Table Tops, Tub & Shower Enclosures, Patio & French Doors, Broken Window Repairs, Free In-Home Estimates

Brands

Cascade, Masonite, Milgard, Plastpro, Ply Gem, Sierra Pacific, Simonton, Therma-Tru

Coverage Areas

Santa Clara County, San Mateo County

Family Owned
Family Owned
Established in 1969
Established in 1969
Residential & Commercial
Residential & Commercial
Appointments Available
Appointments Available
850 Aldo Avenue, Santa Clara, CA 95054
Hours CLOSED NOW
License:
690918
Learn how to choose a Windows and more…

Diamond Certified Window Companies Serve These Los Altos ZIP Codes

94024, 94022, 94023

Diamond Certified Window Companies In Los Altos

Diamond Certified window companies serving Los Altos are rated an average of 4.7 out of 5 stars based on 1877 reviews of 44 rated window companies.
Diamond Certified window companies in Los Altos Avg. Star Rating.

We make you an expert at choosing a high-quality window company in the Los Altos area.

For those who love quality local window companies.

Within our Diamond Certified Resource:

You’ll love and refer your friends and family to your new Los Altos area Diamond Certified window company. They provide expert services, including arched windows, wood windows, aluminum windows, vinyl windows, sliding windows, and more.

To qualify for Diamond Certified, each company must score Highest in Quality and Helpful Expertise (a 90+ on a 100 scale) and pass all our credential-based ratings. Diamond Certified window companies that serve Los Altos residents include Anderson Window & Door Installation, and Able Glass Company.

Every Diamond Certified window company that serves residents in 94024, 94022 and 94023 performs various specialties, including picture windows, bow windows, double-hung windows, custom windows, and energy-efficient windows.

How to Choose a Quality Los Altos Window Company for Your Family
  1. Click the name of the company to get to their Diamond Certified Company Report page.
  2. Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
  3. Read their verbatim customer survey responses and our researched articles.
  4. Get helpful window tips if they are a Diamond Certified Expert Contributor.
  5. Call or email them to schedule an appointment.
Become a Diamond Certified Preferred Member and Join Your Los Altos Neighbors

If you love quality local companies, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.

Your Diamond Certified Resource. We make you an expert at choosing.

We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.

Diamond Certified Resource Compared to Crowd-Sourced Review Sites

Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.

Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.

Map of Los Altos, CA

Los Altos was founded in 1896, and today, your 28,976 neighbors enjoy hot tubbing, fossil hunting, coastal drives, stargazing and open air markets. Los Altans use Diamond Certified window companies for window glass repair, aluminum windows, casement windows, window seal repair, window pane replacement, and more.

Frequently Asked Questions for Windows in Los Altos, CA
Q: What are customers of Diamond Certified window companies saying about companies in Los Altos, CA?
A: Verified Anderson Window & Door Installation Customer, 1 of 272
"I would say to give them a call. The installation was done without any issues. They showed up at the time we agreed on. They were thorough and very hardworking." - A.H.P.
All Survey Responses for Anderson Window & Door Installation
Verified Quality First Home Improvement, Inc. Customer, 1 of 459
"They are very neat and clean. My yard was pristine after they completed the job, almost like they were never there. They also assist with financing, and their staff are very responsive. The sales representative, Craig, was great. I have used them for solar, painting, and a patio cover. The patio cover is laser perfect, and the water is channeled to the gutter, instead of pooling on the cover. They are very good. Their workmanship is the best I've seen. They are the first company I call if I have a project. If they cannot do the work, they refer me to someone who can." - Janice M.
All Survey Responses for Quality First Home Improvement, Inc.
Verified Able Glass Company Customer, 1 of 350
"Eric was incredible. He coordinated everything and every person we dealt with was fantastic. All the people he recommended for additional work were perfect. They kept me out of a couple bad decisions too. Overall, the process with them was fantastic from design quotes to project coordination, the follow-up, everything. The whole process was fantastic. I really liked the quality of their people. The people they sent to us were just top notch. We just did a complete remodel and it was one of two processes that I actually enjoyed, where I didn't have to pull teeth and people showed up when they were supposed to. " - Bob R.
All Survey Responses for Able Glass Company
Q: What are some of the most popular brands that Diamond Certified window companies use when working with Los Altos residents?
A: Diamond Certified window companies use top-quality brands like Marvin, Atrium, Ply Gem, Kolbe and Weather Shield.
Q: What types of replacement windows do window companies offer?
A: Window companies offer energy-efficient windows such as double-glazed or triple-glazed windows, low-E (low-emissivity) windows, and gas-filled window units. Double and triple-glazed windows have two or three layers of glass with a vacuum or gas-filled space in between to reduce heat transfer. Low-E windows have a special coating that reflects infrared light, keeping heat inside the home during winter and outside during summer. Gas-filled window units are filled with inert gases like argon or krypton between the panes, which are better insulators than air and can further reduce heat transfer.
Q: Can Diamond Certified window companies work with Andersen products and similar items so I can get window insulation in Los Altos?
A: Yes, Diamond Certified window companies can work with Andersen products and other similar items to provide window insulation in Los Altos.
Q: What did people search for when they wanted to find the best quality window companies in Los Altos?
A: Double-Hung Windows
Velux Skylights
Bay Windows
Picture Windows
Window Awnings
The Homeowner's Guide to Windows, Coverings & Doors