20 Best Window Companies in Danville, CA (2025 Reviews)

If you’re looking to upgrade to new windows, our list of the top window installation companies can help.

We analyzed all the top-rated window companies in Danville and selected the best 20 based on:

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

By EcoWatch Local Advisors

Updated January 24, 2025

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.

A guide on the best window replacement companies in Danville may not seem like the most riveting article on the EcoWatch site, but trust us, windows impact your life more than you might think. Traditional or damaged windows could lead to having higher energy bills during the winter or summer months.

Replacement windows improve your home’s insulation, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.

Because windows have such a large impact on your home, selecting the best company for you is a big decision to make. That’s why the EcoWatch team has made this list of the best window installation companies, so you can make an informed decision more easily.

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Danville

The EcoWatch Reviews team examined dozens of installers across the country to find the top window replacement companies for our readers. The providers in this article scored best in our review categories, such as energy-efficient offerings, availability, customer service, price, local expertise and more.

Window World logo
Best Affordability

Window World

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

Window World provides windows expertise in Danville. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the windows industry, and it has proved to be one of the most respected companies in Danville.

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

Window World offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.

How much does Window World cost in Danville?

Window World does not display prices on its website, but it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to know for sure.

Milgard Windows & Doors logo
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 Entails hiring third-party contractors
  • Pros icon Limited additional services

Milgard Windows & Doors provides the best local installation in Danville. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. This company has 60 years of experience in the windows industry, and it has proved to be one of the most respected companies in Danville.

It has established itself as a company 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

Milgard Windows & Doors offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. 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.

How much does Milgard Windows & Doors cost in Danville?

Milgard does not display prices on its website, but it offers different kinds of windows at varying price points. Getting a free quote on its website is the best way to know for sure.

Renewal by Andersen logo
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in Danville. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows industry, and it has proved to be one of the most respected companies in Danville.

It has established itself as a company 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.

How much does Renewal by Andersen cost in Danville?

Andersen does not display prices 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. Getting a free quote on its website is the best way to know for sure.

We have tried to remain unbiased and transparent by describing pros and cons for each company. Additionally, any partnerships do not influence our reviews.

More Window Companies in Danville

Renewal by Andersen of San Francisco

Hayward, CA
4.8
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Skylights
  • Service icon Glass Doors
  • 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

Cal Coast Window & Door

Pleasanton, CA
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://calcoastwindows.com/
Address: 5673 W Las Positas Blvd Suite 203, Pleasanton, CA 94588
Phone: (925) 398-8184

Golden Heights Remodeling INC

Concord, CA
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

Website: https://www.goldenheightsremodeling.com/
Address: 1110 Burnett Ave # J, Concord, CA 94520
Phone: (800) 521-0950

Quality Windows & Doors

Pleasanton, CA
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.qwdwindowsanddoors.com/
Address: 3732 Stanley Blvd Ste B, Pleasanton, CA 94566
Phone: (925) 484-1747

Mr Window Replacement

Fremont, CA
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Vinyl Frames

Website: http://www.mrwindowreplacement.com/
Address: 4053 Nicolet Ave, Fremont, CA 94536
Phone: (707) 294-8507

GENERAL B CONTRACTOR

San Jose, CA
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.generalbcontractor.com/
Address: 262 Hillsdale Ave, San Jose, CA 95136
Phone: (408) 999-1111

Santa Rosa Window Tint

Santa Rosa, CA
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: http://www.santarosawindowtint.com/
Address: 3721 Santa Rosa Ave b4, Santa Rosa, CA 95407
Phone: (707) 879-8468

Alexander Company

Burlingame, CA
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Skylights
  • Service icon Window Repair
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

Website: https://alexanderco.com/
Address: 1322 Marsten Rd, Burlingame, CA 94010
Phone: (650) 288-0813

Window Factory

Greenbrae, CA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Fiberglass Frames
  • Service icon Bay Windows
  • Service icon Wood Frames
  • Service icon Metal Frames
  • Service icon Glass Doors

Website: http://www.bayareawindowfactory.com/
Address: 2100 Redwood Hwy, Greenbrae, CA 94904
Phone: (415) 924-3300

The Glass Guru

Fairfield, CA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Repair
  • Service icon Energy-Efficient Options
  • Service icon Storm/Impact Windows
  • Service icon Triple Pane Glass
  • Service icon Window Replacement/Installation
  • Service icon Metal Frames
  • Service icon Skylights
  • Service icon Custom Glass
  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Wood Frames
  • Service icon Fiberglass Frames
  • Service icon Glass Repair
  • Service icon Screen Repair
  • Service icon Mirrors

Website: https://www.theglassguru.com/fairfield-vacaville-ca/
Address: 1601 Enterprise Dr STE 14, Fairfield, CA 94533
Phone: (707) 348-9539

Bay Builders and Remodeling Inc.

San Jose, CA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

Website: http://baybuilders.com/
Address: 800 Charcot Ave #100, San Jose, CA 95131
Phone: (408) 583-6797

Sivan Windows and Doors - San Jose Window and Door Replacement Company

San Jose, CA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://sivanwindowsanddoors.com/contact-san-jose/
Address: 1650 Las Plumas Ave A, San Jose, CA 95133
Phone: (888) 582-7956

American Window Specialist

Campbell, CA
4.9
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Window Repair
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Vinyl Frames
  • Service icon Double-Hung

Website: https://americanwindowspecialists.com/
Address: 1550 Dell Ave i, Campbell, CA 95008
Phone: (408) 484-7676

Northwest Exteriors

Santa Rosa, CA
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames

Website: http://www.northwestexteriors.com/
Address: 3450 Airway Dr STE G, Santa Rosa, CA 95403
Phone: (707) 527-7770

Custom Exteriors, Inc

Pleasanton, CA
4.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Bay Windows

Website: https://www.custom-exteriors.com/
Address: 2142 Rheem Dr ste e, Pleasanton, CA 94588
Phone: (888) 957-7800

R & M Quality Windows & Doors

Newark, CA
4.8
★★★★★
  • Pros icon Timely Service
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows

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

Integrity Windows & Doors

San Jose, CA
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Bay Windows
  • Service icon Metal Frames
  • Service icon Fiberglass Frames
  • Service icon Wood Frames
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

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

Milgard Windows & Doors

Sacramento, CA
4.8
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Metal Frames
  • Service icon Glass Doors

Website: http://www.milgard.com/
Address: 6050 88th St, Sacramento, CA 95828
Phone: (916) 387-0700

B & L Glass

Santa Rosa, CA
4.8
★★★★★
  • Pros icon Timely Service
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Glass
  • Service icon Glass Repair
  • Service icon Mirrors
  • Service icon Energy-Efficient Options
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Skylights

Website: https://blglass.com/
Address: 3175 Cleveland Ave, Santa Rosa, CA 95403
Phone: (707) 546-4143

East County Glass & Window, Inc.

Pittsburg, CA
4.7
★★★★★
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Glass Showers
  • Service icon Bay Windows

Website: http://www.ecglass.com/
Address: 441 E 10th St, Pittsburg, CA 94565
Phone: (925) 432-1433
Danville Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Danville, CA using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

How Installing Energy-Efficient Windows in Danville Saves You Money

By upgrading to energy-efficient windows, you and your family can enjoy several benefits, including:

  • Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its value.
  • Save on electricity bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of residential energy use. Installing energy-efficient models can help lower that number, therefore saving you about 12% more on your bills.
  • Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can cut your indirect greenhouse gas emissions by about 12%, according to Energy Star.
  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.

Estimated Cost of Window Replacement in Danville

Windows come in varying shapes and sizes, so costs and services will differ remarkably. Here are the average costs and services that you can find from window installers.

How Much Do New Windows Cost?

According to our research, the average cost to replace a single window is about $600. However, window replacement costs can range from $200 to $1,200 per window. Costs will differ considerably depending on the current condition of your home, your location, the number of windows you need and the quality of your products. Many window companies also offer replacement door installations and other add-ons like coating, baths, shutters and more. Additional services will increase your overall project costs.

It’s also worth keeping in mind that energy-efficient windows will cost more upfront, but Energy Star predicts that switching out the windows on your Danville home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you’ll save by upgrading to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

Asking for free quotes from several providers is the best way to find out which one will work best for your budget.

What Services do Window Installers Offer?

The first step when planning an installation is to decide whether you should get a full-frame or pocket installation.

Full-frame installations involve replacing the complete window, including the trim, frame and sill. Full-frame installations are necessary when you want to change the style of your windows or your window has significant rot. Because these installations are more involved, they will raise overall costs. Pocket installations are on the simpler end and won’t carry as large a bill because they involve simply replacing the window within its existing frame. But if the frame has any damage or rot, you should opt for a full-frame installation instead.

If you’re still debating which kind of installation you should get, you can talk to your installer and get their recommendation. The choice mostly is influenced by how old the frames are and if there’s any damage.

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Danville

In our hunt to find the most reliable, eco-friendly window installers in Danville, the EcoWatch team assessed dozens of companies before landing on these. We have reviewed the best window replacement companies in Danville mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

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

Work Quality

We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each company featured in our guide to make sure its technicians are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed patterns in recent online reviews to find 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 most other categories, including warranty, quality of installation, quality of parts, professionalism, cost and more.

Cost

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

Warranty

Protecting your investment in new windows is important. That’s why window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Due to Danville’s climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of Danville window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

Danville, CA Window Replacement FAQs

How much does a window install cost?

The national average cost of installing a single window is about $600 but can range from $200 to $1,200, based on a variety of factors. The price is usually dependent on the location of your property, the size of the window and the type and material of the window. Also, keep in mind that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.

Which type of window should I get?

A window’s energy efficiency is affected by a variety of factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.

What do window installers do?

Window installation professionals travel to your house to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.

When is the best time of year to replace windows?

Though you can install windows any time of year, warmer weather is typically better for installing replacement windows. Additionally, the weather should be dry, because rain can make the installation more difficult.

How long does it typically take to install windows?

Each window takes around 30 minutes to install depending on the kind of window. However, the window installation can take two days or more if you have a lot of windows that have to be installed.