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Best Window Replacement Companies in Sunnyvale, CA

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Written By Max Peterson | Last Updated: February 05, 2024

You might be installing replacement windows to enhance your home's exterior facade, lower your energy usage, or protect your home from harsh weather conditions. If your windows are deteriorating or damaged, it's likely time to get new ones. Working with a licensed window company will help you get a top-quality outcome and help you prevent costly mistakes from attempting to handle the job yourself.

Top Pick
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Best Financing
  • Full-service installation
  • In-house, U.S.-made products
  • More than 70 years of experience
Most Customizable
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Top 10 Sunnyvale Window Installation Companies

We recommend working with one of these top professionals for your window replacement in Sunnyvale.

Sunnyvale residents can trust the This Old House Reviews Team to provide relevant and up-to-date window company recommendations in their area. To determine which installers are the best, we focus on these five criteria:

  • Services and warranties
  • Product quality
  • Energy-efficiency guarantees
  • Professional experience and licensure
  • Customer reviews and recommendations

Sunlight Concepts | Natural Daylighting and Ventilation System - Solatube Dealer Logo

Sunlight Concepts | Natural Daylighting and Ventilation System - Solatube Dealer

Based on 173 customer reviews.

Services Offered

Bay Windows Skylights Window Install & Replacement


  • Educational website
  • Price transparency
  • Free assessment
1130 Walsh Ave, Santa Clara, CA 408-844-0081 sunlightconcept.com
J & M Windows and Glass Logo

J & M Windows and Glass

Based on 25 customer reviews.

Services Offered

Bay Windows Mirrors Double-Hung Andersen Fiberglass Frames Glass Showers Sliding Glass Doors Milgard Aluminum Frames Velux Skylights Window Install & Replacement Marvin Energy-Efficient Options


  • Good customer service
  • Price transparency
  • Educational website
745 E Mcglincy Ln, Campbell, CA 408-371-7255 jandmglass.com
Super Glass Logo

Super Glass

Based on 20 customer reviews.

Services Offered

Window Install & Replacement Commercial Windows Mirrors Glass Showers


  • Educational website
201 Lost Lake Ln, Campbell, CA 408-374-7676 superglassonline.com
American Window Specialist Logo

American Window Specialist

Based on 49 customer reviews.

Services Offered

Bay Windows Window Install & Replacement Sliding Glass Doors Glass Doors Window Repair


  • Free assessment
  • Good customer service
  • Educational website
1550 Dell Ave I, Campbell, CA 408-484-7676 americanwindowspecialists.com
WindStar Windows & Doors Logo

WindStar Windows & Doors

Based on 15 customer reviews.

Services Offered

Wood Frames Energy-Efficient Options Window Install & Replacement Aluminum Frames Bay Windows


  • Price transparency
2770 S Bascom Ave, San Jose, CA 408-559-8976 windstarwd.com
American Vision Windows Logo

American Vision Windows

Based on 150 customer reviews.

Services Offered

Window Install & Replacement Energy-Efficient Options Fiberglass Frames Wood Frames Vinyl Frames Sliding Glass Doors Aluminum Frames Stained Glass


  • Free assessment
  • Good customer service
  • Educational website
400 Mathew St, Santa Clara, CA 408-444-8941 americanvisionwindows.com
Argonaut Window & Door, Inc. Logo

Argonaut Window & Door

Based on 77 customer reviews.

Services Offered

Kolbe Bay Windows Commercial Windows Milgard Window Install & Replacement Velux Andersen Marvin Aluminum Frames


  • Good customer service
  • Educational website
  • Free assessment
10612 S De Anza Blvd, Cupertino, CA 800-430-7535 argowin.com
Fast Glass Logo

Fast Glass

Based on 19 customer reviews.

Services Offered

Tempered Glass Mirrors Bay Windows Glass Showers Window Repair Window Install & Replacement


  • Timely service
  • Good customer service
  • Price transparency
975 S Bascom Ave, San Jose, CA 408-924-0611 fastglasscompany.com
Bay Builders and Remodeling Inc. Logo

Bay Builders and Remodeling

Based on 35 customer reviews.

Services Offered

Bay Windows Window Install & Replacement


  • Free assessment
  • Price transparency
  • Educational website
800 Charcot Ave #100, San Jose, CA 408-583-6797 baybuilders.com

More Local Window Companies

Alum Rock Hardware, Windows & Doors

User Reviews: 4.7/5 

2243 Alum Rock Ave
San Jose, CA 95116

California Window & Fireplace - Window, Door & Fireplace Sales & Installation in Silicon Valley

User Reviews: 4.4/5 

180 Kennedy Ave
Campbell, CA 95008

Brothers Home Improvement, Inc.

User Reviews: 4.4/5 

125 Component Dr
San Jose, CA 95131

A Wholesale Window Company

User Reviews: 4.4/5 

891 Laurelwood Rd #107
Santa Clara, CA 95054


User Reviews: 4.3/5 

966 Parker Ct
Santa Clara, CA 95050

My Window & Door Solutions LLC

User Reviews: 4.3/5 

1510 Oakland Rd Ste 130
San Jose, CA 95112

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about Sunnyvale
Annual Energy Efficient Windows Savings: $562
Average Max Temp: 71°F
Average Min Temp: 50°F
Average Daily Sunlight: 69%
Average Annual Snowfall: 0"
Average Monthly Precipitation: 1.74"

Expert Tips By

This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

How To Choose a Window Company in Sunnyvale

With Sunnyvale's robust local economy, you're sure to find a reputable window company that suits your values and preferences. As you contact companies, keep the following factors in mind:

Window Cost by Type

When it comes to window replacement, value is most important. Each window you buy should offer maximum durability at an affordable price point. Choosing economy windows could actually raise your overall cost, since they come with a reduced lifespan and more intensive maintenance needs. The material, style, and size of your new windows have the greatest impact on your final cost. Single-hung windows often cost less due to their straightforward style and simple mechanisms, while a custom-cut arch window in a master suite will cost more. It's recommended to consult a trusted installer to figure out your most suitable options.

This table shows average prices for various window types to give you an idea of what to expect.

Window Types Average Cost
Arched $271-$1667
Awning $393-$1095
Bay $906-$6721
Custom $403-$1120
Casement $313-$1817
Double-hung $146-$945
Egress $268-$671
Glass Block $53-$680
Picture $235-$1742
Single-hung $106-$1792
Skylight $134-$1618
Sliding $308-$1568
Storm $63-$443
Transom $328-$687

Window Material Cost

Materials also help determine a window's cost. You might select a material based on your desired look, the local climate, and your energy efficiency goals. For example, wood windows can give your home an organic design without breaking the bank, but you'll have to invest more toward maintenance. Aluminum and composite windows cost more up-front, but they're incredibly durable against the elements, so you'll spend far less on maintenance.

Window Types Average Cost
Aluminum $63-$1792
Composite $647-$1453
Fiberglass $106-$906
Vinyl $218-$2016
Wood $323-$1817

Other Window Replacement Costs

Ask each installer you're evaluating about labor costs, warranty fees, and permit fees. This will help you get a better picture of the total costs involved in the project.

Experience and Training

Select a provider that focuses on window installation and repair, and look for this information on its website:

  • How many years it's been operating
  • Photo galleries of projects its crews completed
  • Official non-government credentials attesting to its workmanship
The more experience a company has, the better its service and workmanship.

Licensing and Credentials

A California window provider must be licensed as a Window Coverings Contractor, Glazing Contractor and General Building Contractor if it performs jobs valued at over $500. Each certification has its own test and work requirements. If a contractor is caught working without a license, they'll have to pay steep fines.

Types of Windows Offered

There are many replacement window types you can choose from, and it's important to find a company that has expertise with the ones you want. Check a company's website and reviews for any of these types:

  • Awning
  • Bay
  • Bow
  • Casement
  • Crank-out
  • Custom
  • Double- or single-hung
  • Egress
  • Garden
  • Jalousie
  • Picture
  • Sliding
  • Skylight
  • Specialty
  • Storm
  • Transom
  • Vent
Also, check the style of window framing materials a company works with. Each material has different price points, life spans, and energy performance capabilities. Common materials include fiberglass, vinyl, wood, composite and aluminum.

Customer Feedback

Perhaps the best way to prescreen window companies for your job is to read what previous customers have said about them. You can find customer reviews on websites like Google, the BBB, Trustpilot, and Yelp. Speak with people you know who have used a company you're interested in, and ask a representative for a copy of its reference list.

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Frequently Asked Questions About Window Replacement in Sunnyvale

What are the benefits of hiring a window installer?

By working with a professional, you don't need to worry about making measurement mistakes or not having the right tools. A window installation team is well-equipped with the right supplies and skills to do the job safely and accurately. You can also get fast, informed answers to your questions and customized assistance to make the most of your new windows

What time of year should I replace my windows?

Since Sunnyvale has very mild winters, any time is a good time to put in new windows. When you contact an installer, ask the representative about when demand is at its lowest. By scheduling your job during an off-peak period, you could potentially save some money on labor costs.

My window screen tore. How should I fix it?

It depends on the size of the tear and its location on your window. You can usually address small tears yourself using a special kit. Some window companies will supply you with one when they set up your windows, or you can get one for $5–10 from a home improvement store. Bigger tears, or those located at the edge of a window, usually need professional repair.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

More Window Resources

National Windows Company Ranking Methodology


Energy Star