25 Best Window Replacement Companies in Danville, CA (Feb 2023)
Window Companies Near Me

Thinking of improving your house's look? The top window replacement companies can help.

We analyzed all the top window installers in Danville and selected the top 25 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.

The EcoWatch Reviews team is all about finding solutions for eco-conscious homeowners in Danville. During the hot summer months, the last thing you want is your cool air to leak out of your drafty windows.

That's bad for your wallet and the environment, but one of the best window installation companies can help you with that.

Efficient windows are especially important in Danville, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $657 a year.

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Lifetime warranty
  • Low prices relative to competitors
  • Quality of service will depend on your area

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Entails hiring third-party contractors

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Award-winning company
  • No lifetime warranty

Best Window Replacement Companies in Danville

The EcoWatch Reviews team evaluated dozens of providers that serve the Danville area to find the top window installation companies that fit our standards. The installers mentioned in this article scored best in our review categories, which include energy-efficient offerings, customer service, local expertise, availability, price and more.

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

Window World

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

Window World has windows expertise in Danville. Window World has about 27 years of experience in the window installation industry. Its reputation is backed by hundreds of positive reviews from customers online.

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 Danville?

Window World doesn't have any pricing information displayed on its website, but it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can receive 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 Entails hiring third-party contractors

Milgard Windows & Doors has the best local installation in Danville. Milgard has been in the window installation industry for about 60 years.

You may want to consider picking Milgard if you're looking for a installer 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 has 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 list prices on its website, but it offers different kinds of windows at varying price points. For more detailed information on pricing, you can receive a quote from the company.

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 Great industry reputation
  • Pros icon Member of US Green Building Council
  • Pros icon Award-winning company
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen offers the best availability in Danville. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the windows industry, and it has proved to be one of the best companies in the business. The company has plenty of glowing reviews from customers online.

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 is an Energy Star partner offering 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 be 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 Danville?

Though prices are not available on Andersen's website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Requesting a free quote on its website is the best way to know for sure.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This provider has 20 years of experience in the windows business, and it has become one of the best companies in the business. Hundreds of positive reviews from customers online back the company's reputation.

It has an industry-leading warranty covering products, parts and workmanship for life.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality 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 Danville?

Pricing details are not available on Universal's website, as the cost of window installment differs based on how many and what type(s) of windows you need. However, 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. Requesting a free quote on its website is the best way to get more accurate information.

We strive to remain unbiased and transparent by describing pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.

More Window Replacement Companies in Danville

The Glass Guru

Antioch, CA
4.4
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Reliable Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.theglassguru.com/brentwood-ca/
Address: 2220 A St Suite A, Antioch, CA 94509
Phone: (925) 690-1947

Renewal by Andersen of San Francisco

Hayward, CA
4.3
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Price Transparency
  • Pros icon Reliable Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

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

The Glass Guru

Fairfield, CA
4.3
★★★★★
  • Pros icon Dependable Service
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency

Services Offered

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

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

Window Replacement San Leandro

San Leandro, CA
4.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Timely Service
  • Pros icon Reliable 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 & Bow 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 Timely Service
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency

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: 689 E 14th St, San Leandro, CA 94577
Phone: (510) 961-3697

Window Replacement Berkeley

Berkeley, CA
4.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • 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: 909 University Ave, Berkeley, CA 94710
Phone: (510) 722-0025

Best Exteriors

Oakland, CA
4.0
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Dependable 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: 1999 Harrison St #10219, Oakland, CA 94612
Phone: (877) 792-6065

Window Replacement Vallejo

Vallejo, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Arrives on Time
  • Pros icon No-fee Quotes

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: 116 Springstowne Center, Vallejo, CA 94591
Phone: (707) 515-0257

Window Replacement Dublin

Dublin, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Timely 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: 4530 Dublin Blvd, Dublin, CA 94568
Phone: (925) 587-4767

Window Replacement Livermore

Livermore, CA
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers

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: 1374 Railroad Ave, Livermore, CA 94550
Phone: (925) 495-1522

Window Replacement Pleasanton

Pleasanton, CA
4.0
★★★★★
  • Pros icon Reliable Service
  • Pros icon Free Quotes
  • Pros icon Timely Service
  • 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: Pleasanton Ave, Pleasanton, CA 94566
Phone: (925) 400-8953

Window Replacement San Francisco

San Francisco, CA
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon No-fee 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 Windows

Website: https://bestexteriors.com/
Address: 1597 Sanchez St, San Francisco, CA 94131
Phone: (650) 402-1162

Window Replacement Oakland

Oakland, CA
4.0
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Arrives on Time

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: 1722 Broadway, Oakland, CA 94612
Phone: (510) 722-0008

Window Replacement Alameda

Alameda, CA
4.0
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • 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: 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 Price Transparency
  • Pros icon Arrives on Time
  • 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 & 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 No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers

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 Price Transparency
  • Pros icon Timely Service
  • Pros icon Reliable 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 & Bow Windows

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

Window Replacement Walnut Creek

Walnut Creek, CA
4.0
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon No-fee Quotes

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: 2842 Ygnacio Valley Rd, Walnut Creek, CA 94598
Phone: (925) 464-1334

Window Replacement Concord

Concord, CA
4.0
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • 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: 1856 Colfax St, Concord, CA 94520
Phone: (925) 466-4343

Window Replacement Union City

Union City, CA
4.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Dependable Service
  • Pros icon Free Quotes
  • Pros icon Excellent Customer 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: 4126 Dyer St, Union City, CA 94587
Phone: (510) 722-0020

Window Replacement San Mateo

San Mateo, CA
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Timely Service
  • 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 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 Free Quotes
  • Pros icon Reliable Appointment Windows
  • 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 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 Free Quotes
  • Pros icon Reliable Service
  • Pros icon Arrives on Time
  • 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: 27531 Tampa Ave, Hayward, CA 94544
Phone: (510) 606-4707

Window Replacement Richmond

Richmond, 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: 845 Marina Bay Pkwy, Richmond, CA 94804
Phone: (510) 609-1138

Bestoff Windows & Construction

Concord, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Arrives on Time

Services Offered

  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.bestoffwindows.com/
Address: 1000 Detroit Ave Suite "S, Concord, CA 94518
Phone: (925) 457-9026

How Installing Energy-Efficient Windows in Danville Saves You Money

Energy-efficient windows can provide benefits in more than one way. Here are some reasons you may want to think about making the switch:

  • Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
  • Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.
  • Save money on electricity bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Switching to energy-efficient models can help decrease how much energy is used in your home, therefore saving you about 12% more on your bills.
  • Reduce your carbon footprint: Reducing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 117 pounds.

Estimated Cost of Window Replacement in Danville

Let's go over the cost of replacing your windows and the kinds of services offered by installers.

How Much Do New Windows Cost?

Typically, homeowners in Danville can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. Costs will vary considerably depending on the quality of your products, your location, the number of windows you need and the current condition of your home. Many window companies also offer replacement door installations and other add-ons like shutters, coating, baths and more. Additional services will increase your overall project costs.

Whether or not you want energy-efficient windows is another factor that will affect the cost. These will usually cost more than other windows, but on the other hand, you can save about $657 a year on your energy bills in Danville.

Something else that affects the total cost is the material you select for your frame. Aluminum frames are generally the least expensive and are sturdy and light, but they provide poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

There are generally two types of window installation services: full-frame and pocket installations.

Full-frame installations are usually done when you want to change the style of your windows or your window has a lot of deterioration. With this service, your installers will replace the total window, including the trim, frame and sill. A pocket installation involves replacing a window within the frame that's already there. So, instead of removing the whole unit and rebuilding it, the installer will just put the replacement window (also called a retrofit or insert window) into the frame.

If you're unsure which kind of window installation service you should get, your installer should be able to assist you. Generally, the choice is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.

Best Affordability

Window World

★★★★★
4.5

  • EnergyStar Partner
  • Lifetime warranty
  • Low prices relative to competitors
  • Quality of service will depend on your area

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

  • EnergyStar Partner
  • Wide network of installers
  • Lifetime warranty available
  • Entails hiring third-party contractors

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Award-winning company
  • No lifetime warranty

How We Choose the Best Window Installers in Danville

In our search to find the most reliable, eco-friendly window installers in Danville, EcoWatch landed on the above companies as the best window installation companies in the city. We've reviewed the best window installers in Danville mainly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows can lower electricity 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 Danville area so you can find the best window installation company near you.

Work Quality

When installing new windows, the quality and variety of services often plays just as important of a role in overall efficiency and performance as the brand of window 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

Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don't have nice feedback about their service from a certain window installation company, you won't see it featured on EcoWatch.

Cost

This one is a give-and-take: similar to most services, cheap window companies won't always provide the most quality service. On the other hand, we want to ensure we're highlighting companies that provide a range 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 that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have a good track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

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 several factors. The price is typically dependent on the size of the window, the type and material of the window and the location of your property. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.

What kind of window is the most energy-efficient?

Generally, double-pane windows are more efficient than single-pane windows and windows that do not open are 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 — that means they're certified energy-efficient by the U.S. Department of Energy.

Do you really need to use a window installation company?

Unless you're handy and have all of the necessary tools to replace your own windows, we recommend hiring a professional installer. The window installation process is quite involved and can take anywhere from four to six hours for one window. Although it's tempting to try to save some money by doing it yourself, hiring a professional is a faster, more efficient and safer option.

How long does it take to install windows?

Because the average installation time of a window is 30 minutes, about 16 windows can be installed during a typical 8-hour work day.

How often do you need to replace your windows?

Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Apart from that, if your windows have damage anywhere on them, or they have become difficult to open or close, they may be in need of replacement.

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