27 Best Window Replacement Companies in Concord, CA (Jan 2023)
Window Companies Near Me

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

We analyzed all the top window installers in Concord and selected the top 27 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.

Although eco-friendly energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home's efficiency can also have a big impact on home energy conservation. Drafty or leaky windows can make your home uncomfortable in the summer or winter.

Installing new, efficient windows on your home can help you save money each month on your energy bills — and you can help the environment, too.

We've put together a list of the best installation companies to help you in your search, so you can not only benefit from brand new windows, but also save money on your power bills.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

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

Best Affordability

Window World

★★★★★
4.5

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

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Manufactures products in-house
  • Award-winning company
  • No lifetime warranty

Best Window Replacement Companies in Concord

The EcoWatch Reviews team examined dozens of installers in Concord to find the top window replacement companies for our readers. The installers in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

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 provides the best local installation in Concord. This window installation company has been in business since 1962 and currently services Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties.

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' commitment to sustainability shows in its energy-efficient window offerings. 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 Concord?

Although prices are not available on Milgard's website, it offers different kinds of windows at varying price points. The best way to get more accurate pricing information is to get a free quote from the company.

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

Window World

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

Window World has windows expertise in Concord. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This window installation company has been operating since 1995 and currently provides services to 200 locations nationwide. Its reputation is backed by all the positive reviews on customer review websites.

You may want to consider choosing Window World if you're looking for a installer 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

There are a wide range of window types that Window World offers, some of which are Energy Star products. 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 Concord?

Window World does not mention 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 get more accurate information.

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 Manufactures products in-house
  • Pros icon Award-winning company
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has over 27 years of experience in the windows industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Many positive reviews on customer review websites back the provider's reputation.

You may want to consider going with Andersen if you're interested in a installer 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 has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality 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 Concord?

While prices are not readily 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. If you'd like more accurate pricing information, you can get a quote on the company's website.

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 has the best warranty in Concord. Universal has been in the window installation business for about 20 years. The provider has a lot of positive reviews from customers online.

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

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so make sure to ask your Universal representative when inquiring about services.

How much does Universal Windows Direct cost in Concord?

Pricing details are not available on Universal's website since the cost of window installment depends 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. Receiving a free quote on its website is the best way to know for sure.

We've recommended installers with shining reputations, but note that these are national companies, so your service may depend on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for each company reviewed.

More Window Replacement Companies in Concord

The Glass Guru

Antioch, CA
4.4
★★★★★
  • Pros icon Reliable Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Educational Website
  • Pros icon No-fee Quotes

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 Commercial 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 Dependable Service
  • Pros icon Arrives on Time
  • Pros icon Good Customer Service
  • Pros icon Award-Winning

Services Offered

  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • 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

The Glass Guru

Fairfield, CA
4.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon No-Hassle Pricing

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 Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • 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 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 No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Excellent Customer 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: 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 Arrives on Time
  • Pros icon Price Transparency
  • 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: 909 University Ave, Berkeley, CA 94710
Phone: (510) 722-0025

Best Exteriors

Oakland, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • 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: 1999 Harrison St #10219, Oakland, CA 94612
Phone: (877) 792-6065

Window Replacement Vallejo

Vallejo, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time
  • Pros icon Dependable 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: 116 Springstowne Center, Vallejo, CA 94591
Phone: (707) 515-0257

Window Replacement Dublin

Dublin, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Excellent Customer Service
  • Pros icon Reliable Appointment Windows
  • 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 & Bow 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 Educational Website
  • Pros icon Free Quotes
  • Pros icon Excellent 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: 1374 Railroad Ave, Livermore, CA 94550
Phone: (925) 495-1522

Window Replacement Pleasanton

Pleasanton, CA
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Dependable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers

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: Pleasanton Ave, Pleasanton, CA 94566
Phone: (925) 400-8953

Window Replacement San Francisco

San Francisco, CA
4.0
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Timely Service
  • Pros icon No-Hassle Pricing
  • Pros icon Free 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 Educational Website
  • Pros icon Consistent Workmanship
  • Pros icon No-Hassle Pricing
  • Pros icon Good 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 & Bow Windows

Website: https://bestexteriors.com/
Address: 1722 Broadway, Oakland, CA 94612
Phone: (510) 722-0008

Window Replacement Alameda

Alameda, CA
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Reliable Service
  • Pros icon Good 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: 555 Ralph A Memorial Pkwy, Alameda, CA 94501
Phone: (510) 722-0010

Window Replacement Redwood City

Pleasanton, CA
4.0
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Helps Educate Customers
  • Pros icon Timely Service
  • Pros icon Free 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 & 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 Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes

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 Business 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 Timely Service
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship

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: 43713 Boscell Rd, Fremont, CA 94538
Phone: (510) 722-0717

Window Replacement Walnut Creek

Walnut Creek, CA
4.0
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon Excellent Customer Service
  • Pros icon Reliable 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 Helps Educate Customers
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Dependable 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: 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 Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Good Customer 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: 4126 Dyer St, Union City, CA 94587
Phone: (510) 722-0020

Window Replacement San Mateo

San Mateo, CA
4.0
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon Reliable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer 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: 514 S Norfolk St, San Mateo, CA 94401
Phone: (650) 356-8663

Best Exteriors

Oakland, CA
4.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Dependable Service
  • Pros icon Arrives on Time
  • Pros icon Good 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: 1301 E 31st St, Oakland, CA 94602
Phone: (510) 961-3175

Window Replacement Hayward

Hayward, CA
4.0
★★★★★
  • Pros icon Reliable Appointment Windows
  • 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 Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://bestexteriors.com/
Address: 27531 Tampa Ave, Hayward, CA 94544
Phone: (510) 606-4707

Window Replacement Vacaville

Vacaville, CA
4.0
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Good Customer 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: 2061 Peabody Rd, Vacaville, CA 95687
Phone: (707) 317-1074

Window Replacement Richmond

Richmond, CA
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Dependable 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 & 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 Arrives on Time
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • 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

Contra Costa Plate & Mirror Co

Pacheco, CA
3.9
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://www.ccplateandmirror.com/
Address: 418 N Buchanan Cir #13, Pacheco, CA 94553
Phone: (800) 452-7789

How Installing Energy-Efficient Windows in Concord Saves You Money

Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on power bills. Here are more details about how upgrading your windows could benefit you:

  • Save on energy bills: After you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you'll require less energy to heat or cool your home.
  • Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% when you install Energy Star certified windows. In Concord, that's about 117 pounds per year on average.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its value.

Estimated Cost of Window Replacement in Concord

Let's take a look at the cost of installing new windows and the kinds of services you may need for your home.

How Much Do New Windows Cost?

According to our research, the average cost of installing a single window is about $600. However, window replacement costs can range from $200 to $1,200 for each window. These amounts vary based on specific characteristics of your installation, like size, number of windows, the location of your home, type, material and more.

Bear in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 per year when replacing single-pane windows and between $27 and $197 per year when replacing double-pane, clear glass windows. Your exact savings will vary based on your local climate, energy rates and individual home characteristics.

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

What Services do Window Installers Offer?

In general, there are two kinds of window installation services companies provide: full-frame and pocket installations.

A full-frame installation replaces the full window, such as the windowsill, frame, trim and the window panes. As this type of installation requires more time and labor, it will cost more than a pocket installation. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any damage or rot, you will most likely need a full-frame installation instead.

If you're still debating which kind of installation to get, you can ask your provider and get their advice. The choice mostly depends on the age of your window frames and if there's any damage present.

Excellent Reputation

Milgard Windows & Doors

★★★★★
4.5

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

Best Affordability

Window World

★★★★★
4.5

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

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Manufactures products in-house
  • Award-winning company
  • No lifetime warranty

How We Choose the Best Window Installers in Concord

EcoWatch reviews differ from most reviews because we look at these companies through a sustainability lens. Along with energy efficiency, we analyzed several window installers in Concord and assigned rankings using the following methodology:

Service Area

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

Work Quality

We're certain that you're looking for professionals who do a great job installing windows. We've vetted each installer included in our guide to make sure its contractors are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent online reviews to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including quality of installation, warranty, quality of parts, cost, professionalism and more.

Cost

Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have been in the industry for quite some time. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

Concord, CA Window Replacement FAQs

How much should window installation cost?

The national average cost of replacing one window is about $600 but can range between $200 and $1,200, based on several factors. The price is generally dependent on the size of the window, the location of your property and the type and material of the window. Also, bear in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

Which kind of window is the best?

Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are more efficient than windows that do. If you want to be sure you'll get the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — this means they're certified energy-efficient by the U.S. Department of Energy.

What do window installation companies do?

Window installers cover the entire process — from replacing your old windows with new ones to cleaning up after the installation. In addition, many companies offer window manufacturing, customization and repairs.

When is the best time of year to replace windows?

Replacement windows can be installed at any time, but autumn might be the best season. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into the house, so the temperature outside doesn't necessarily matter that much. What's more important than the temperature is that the weather should be dry.

Should I replace all my windows at once?

If your windows are greater than 20 years old, you probably need to replace all of them. By that point, they are usually less efficient, leakier and/or more damaged than new windows. Replacing your windows all at once will involve less paperwork and less time.

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