20 Best Window Companies in Fairfield, CT (2023 Reviews)
Thinking about upgrading your windows? We've got all the information you need in this list of the best window installation companies.
We analyzed all the top-rated window companies in Fairfield and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Whether you're updating for style or have old windows, windows play a important role in conserving your home's electricity. When it's the middle of winter, your outdated and drafty windows could be making your home harder to heat and costing you more in power bills.
Fortunately, saving you money with more efficient windows also helps our goals of reducing energy usage for the environment.
As windows have such a big impact on your home, choosing the best company for you is a big decision to make. That's why the EcoWatch team has created this list of the best window installation companies, so you can make an informed decision more easily.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Fairfield
The EcoWatch team assessed several window companies in Fairfield to find the best ones for our readers. We assessed the companies based on energy-efficient offerings, customer service, local experience, price, coverage area and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World offers windows expertise in Fairfield. This company has 27 years of experience in the window installation business, and it has established itself as one of the best companies in the business.
Window World may be the company for you if you're looking for one 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 WindowsWindow World 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 Window World representative when inquiring about services.
How much does Window World cost in Fairfield?Prices aren’t available on Window World’s website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen offers the best availability in Fairfield. This company has 27 years of experience in the window installation business, and it has established itself as one of the best companies in the business. Many positive reviews on customer review websites back the company's reputation.
Andersen may be the company for you if you're looking for one 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 WindowsRenewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want 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 Fairfield?Prices are not available on Andersen’s website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on the cost, you can ask for a quote from the company.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in Fairfield. It's an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has been in the window installation industry for about 23 years. The provider has many positive reviews from customers online.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows’s commitment to sustainability shows in its energy-efficient window offerings. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Fairfield?Prices aren’t listed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. The best way to get more accurate information is to receive a free quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation offers the best residential windows in Fairfield. This company has 16 years of experience in the window installation business, and it has established itself as one of the best companies in the business. Many positive reviews on customer review websites back the company's reputation.
Window Nation may be the company for you if you're looking for one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Fairfield?Prices are not available on Window Nation’s website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. For more detailed information on the cost, you can ask for a quote from the company.
We've recommended companies with good reputations, but note that some national companies have independently owned locations in Fairfield, so your service may vary depending on your local crew. We have tried to be unbiased and transparent by listing pros and cons for every company we reviewed.
More Window Companies in Fairfield
Renewal by Andersen
Stamford, CT-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Stained Glass
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Double-Hung
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Sliding Glass
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Window Replacement
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Residential Windows
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Commercial Windows
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Glass Showers
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Custom Window Designs
Window World of Long Island
Farmingdale, NY-
Good Customer Service
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Price Transparency
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Timely Service
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Free assessment
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Educational Website
Services Offered
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Tempered Glass
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Residential Windows
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Double-Hung
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Fast Delivery
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Bay Windows
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Glass Showers
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Window Replacement
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Sliding Glass
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Stained Glass
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Commercial Windows
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Custom Window Designs
Window Nation
Wallingford, CT-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Stained Glass
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Bay Windows
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Double-Hung
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Window Replacement
Window Depot USA of Southern CT
Trumbull, CT-
Educational Website
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Timely Service
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Sliding Glass
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Residential Windows
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Bay Windows
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Double-Hung
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Window Replacement
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Fast Delivery
Home Comfort Practice, Inc.
Stratford, CT-
Educational Website
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Free assessment
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Price Transparency
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Timely Service
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Good Customer Service
Services Offered
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
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Glass Showers
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Residential Windows
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Commercial Windows
Pella Windows & Doors of Norwalk
Norwalk, CT-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Window Replacement
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Sliding Glass
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Residential Windows
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Custom Window Designs
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Double-Hung
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Commercial Windows
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Bay Windows
Pella Windows & Doors of Monroe
Monroe, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Commercial Windows
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Double-Hung
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Custom Window Designs
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Window Replacement
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Sliding Glass
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Residential Windows
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Bay Windows
Ener-G Tech, Inc.
Stratford, CT-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Glass Showers
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Commercial Windows
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Custom Window Designs
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Window Replacement
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Residential Windows
Standard Glass
Bridgeport, CT-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Window Repair
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Custom Window Designs
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Window Replacement
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Residential Windows
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Double-Hung
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Glass Showers
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Commercial Windows
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Fast Delivery
Fancy House, LLC
Stratford, CT-
Free assessment
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Timely Service
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Window Replacement
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Fast Delivery
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Glass Showers
Fine Touch Services, LLC
Redding, CT-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Glass Showers
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Fast Delivery
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Residential Windows
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Window Replacement
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Custom Window Designs
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Sliding Glass
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Commercial Windows
CMW Roofing & Siding
Monroe, CT-
Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Window Replacement
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Residential Windows
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Commercial Windows
Bert Falsetti's Home Improvement LLC
Shelton, CT-
Price Transparency
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Timely Service
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Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Sliding Glass
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Residential Windows
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Window Replacement
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
Glass Guys
Ridgefield, CT-
Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Glass Showers
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Full-Service Installations
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Double-Hung
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Commercial Windows
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Window Replacement
Superior Windowland
Newtown, CT-
Educational Website
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Price Transparency
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Free assessment
Services Offered
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Double-Hung
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Custom Window Designs
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Sliding Glass
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Glass Showers
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Residential Windows
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Window Replacement
Windows By Toll
Stamford, CT-
Free assessment
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Residential Windows
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Window Replacement
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Double-Hung
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Glass Showers
Signature Exteriors
Stamford, CT-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Window Replacement
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Fast Delivery
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Residential Windows
Sunview Enterprise Inc
Setauket- East Setauket, NY-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Bay Windows
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Custom Window Designs
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Window Replacement
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Full-Service Installations
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Residential Windows
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Energy-Efficient Options
Affordable Glass & Mirror of Stamford,LLC
Stamford, CTServices Offered
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Commercial Windows
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Residential Windows
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Glass Showers
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Window Replacement
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Custom Window Designs
All Pro Remodeling Corp
Mt Sinai, NY-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Energy-Efficient Options
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Window Replacement
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Glass Showers
Calculate how much you can expect to pay for window installation and replacement in Fairfield, CT using our customized window cost calculator.
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 Fairfield Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here are more details about how switching out your windows could benefit you:
- Reduce your carbon footprint: By using less energy after upgrading to energy-efficient windows, you'll also be lowering your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out damaging UV rays.
- 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.
- Better temperature control in your home: When you reside in a city like Fairfield where the winters can get very cold, you often have to depend on your heater to keep your home warm. Energy-efficient windows can cut back on how much heat is lost through your windows when heating your home.
Estimated Cost of Window Replacement in Fairfield
When looking into window installation, each company offers varying services and costs. Let's take a look at some typical costs and services.
How Much Do New Windows Cost?
According to our market research, the national average cost to replace a single window is around $600. However, window installation costs can range from $200 to $1,200 a window. This is because of the fact that the cost of window installations are based on a variety of factors specific to your home, like the size, material and number of windows you need to install, as well as where your property is located.
With windows, efficiency is one of the most important factors for most homeowners. Efficient windows may cost more initially, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you many years of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Fairfield homeowners $441+ each year after replacing single-pane windows.
Costs will also vary based on the material of your frame. Aluminum frames are the least expensive. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are somewhat expensive and offer good insulation. Composite frames made using wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
There are typically two kinds of window replacement services: full-frame and pocket installations.
Full-frame installations involve replacing the entire window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has a great amount of damage. Full-frame installations are more time-consuming and will increase overall costs. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are simpler and won't carry as large a bill, but you can't do this kind of installment if you have any pre-existing rot or water damage.
If you're unsure which kind of window installation service you should get, your installer should be able to assist you. In general, the choice depends on factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Fairfield
The EcoWatch Reviews team differs from most reviewers since we look at these companies through a sustainability lens. We have reviewed the top window installation companies in Fairfield mostly based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can reduce your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve Fairfield so you can find a quality 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 installer featured on this list to make sure its technicians are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it reflects the quality of services across nearly every category, including cost, warranty, quality of installation, professionalism, quality of parts and more.
Cost
This one is a give-and-take: as with other services, cheap window installers won't always provide the highest quality service. On the other hand, we want to ensure we're highlighting companies that offer a wide range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a significant investment, so you'll want to make sure that investment is well protected. Window installation companies that offer 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 installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Fairfield, CT Window Replacement FAQs
How much should a window install cost?
The average cost to install a window ranges between $450 and $650. There are a variety of factors that affect the price, such as the materials used in designing the windows, how energy-efficient the windows are, your property's location, styles and sizes of windows, local labor costs and the number of windows.
What are the kinds of windows?
The most common types of windows for homes include: casement windows, slider windows, double-hung and single-hung windows, picture windows, transom windows, awning windows and bay windows.
When do I 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. The process of installing windows is complex and can take anywhere from four to six hours for a single window. Although it's tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and safer alternative.
How long does window installation generally take?
Because a window takes about 30 minutes to install, around 16 windows can be installed in an 8-hour work day.
Should I replace all my windows at once?
If you're upgrading your windows to get more efficient windows, replacing all of the windows at once is the only way to see a noticeable difference. On the other hand, if you have just one or two windows that are damaged or leaky, you can replace just those.