20 Best Window Companies in Stratford, CT (2023 Reviews)
When it's time to upgrade your windows, our reviews of the top window installation companies can help you find the right provider for you.
We analyzed all the top-rated window companies in Stratford 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
A review of the top window installation companies in Stratford may not seem like the most captivating article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. When it's the middle of winter, your outdated and drafty windows could be making your home more difficult to heat and costing you more in power bills.
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 some money and helping the environment.
So if you're building a new home, renovating or replacing your windows in Stratford, this guide is the best place to get started.
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 Stratford
The EcoWatch Reviews team researched dozens of installers in Stratford to find the best window installation companies for our readers. The providers in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

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 has windows expertise in Stratford. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation industry for around 27 years.
It 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 WindowsIts 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’re interested in Energy Star windows when inquiring.
How much does Window World cost in Stratford?Though prices are not available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to receive a free quote from the company.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window industry for around 27 years. Its reputation is backed by all the positive reviews from customers online.
It 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’s commitment to sustainability shows in its energy-efficient window offerings. 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 Stratford?Andersen does not list 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. If you’d like more accurate information, you can receive a quote on the company’s website.

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 Stratford. This company has been in business since 1999 and currently provides services to 13 states and Washington D.C. Hundreds of positive reviews from customers online back the company's reputation.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe 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. Not all of Aeroseal’s offerings are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Stratford?Aeroseal does not display prices on its website, but it provides high-quality windows at a competitive price point. If you’d like to know for sure, you can ask for a quote on the company’s website.

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 is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window industry for around 16 years. Its reputation is backed by all the positive reviews from customers online.
It 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’s commitment to sustainability shows in its energy-efficient window offerings. 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 Stratford?Window Nation does not list prices on its website, but 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. If you’d like more accurate information, you can receive a quote on the company’s website.
We strive to remain unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Stratford
Renewal by Andersen - Branford
Branford, CT-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Glass Showers
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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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Double-Hung
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Commercial Windows
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Stained Glass
Window World of Long Island
Farmingdale, NY-
Timely Service
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Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Glass Showers
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Double-Hung
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Bay Windows
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Commercial Windows
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Tempered Glass
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Custom Window Designs
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Fast Delivery
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Window Replacement
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Stained Glass
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Residential Windows
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Sliding Glass
Window Nation
Wallingford, CT-
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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Stained Glass
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Bay Windows
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Window Replacement
Home Comfort Practice, Inc.
Stratford, CT-
Price Transparency
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Educational Website
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Good Customer Service
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Timely Service
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Free assessment
Services Offered
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Glass Showers
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Energy-Efficient Options
Window Depot USA of Southern CT
Trumbull, CT-
Timely Service
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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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Energy-Efficient Options
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Window Replacement
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Sliding 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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Custom Window Designs
Bert Falsetti's Home Improvement LLC
Shelton, CT-
Free assessment
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Price Transparency
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Timely Service
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
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Sliding Glass
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Energy-Efficient Options
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Double-Hung
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Window Replacement
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Residential Windows
Pella Windows & Doors of Monroe
Monroe, 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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Sliding Glass
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Double-Hung
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Residential Windows
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Window Replacement
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Commercial Windows
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Bay Windows
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Custom Window Designs
Ener-G Tech, Inc.
Stratford, CT-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Residential Windows
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Custom Window Designs
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Glass Showers
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Commercial Windows
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Energy-Efficient Options
Fancy House, LLC
Stratford, CT-
Free assessment
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Timely Service
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Residential Windows
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Window Replacement
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Glass Showers
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Fast Delivery
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Custom Window Designs
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Sliding Glass
Standard Glass
Bridgeport, CT-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Fast Delivery
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Glass Showers
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Custom Window Designs
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Commercial Windows
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Window Repair
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Window Replacement
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Residential Windows
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Double-Hung
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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Residential Windows
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Window Replacement
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Commercial Windows
Fine Touch Services, LLC
Redding, CT-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Window Replacement
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Sliding Glass
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Glass Showers
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Fast Delivery
Pella Windows & Doors of Norwalk
Norwalk, CT-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Window Replacement
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Double-Hung
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Residential Windows
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Custom Window Designs
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Sliding Glass
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Commercial Windows
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Bay Windows
Superior Windowland
Newtown, CT-
Free assessment
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Educational Website
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Price Transparency
Services Offered
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Window Replacement
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Custom Window Designs
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Residential Windows
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Double-Hung
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Sliding Glass
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Glass Showers
Woodbury Supply Company, Inc.
Oxford, CT-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Window Replacement
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Fast Delivery
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Residential Windows
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Energy-Efficient Options
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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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Good Customer Service
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Price Transparency
Services Offered
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Glass Showers
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Double-Hung
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Custom Window Designs
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Energy-Efficient Options
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Residential Windows
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Window Replacement
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Sliding Glass
Sunview Enterprise Inc
Setauket- East Setauket, NY-
Price Transparency
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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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Custom Window Designs
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Bay Windows
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Window Replacement
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Energy-Efficient Options
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Full-Service Installations
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Double-Hung
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Residential Windows
Glass Guys
Ridgefield, CT-
Price Transparency
Services Offered
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Commercial Windows
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Window Replacement
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Double-Hung
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Glass Showers
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Full-Service Installations
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Residential Windows
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Custom Window Designs
DiMartino Home Improvement
North Haven, CT-
Price Transparency
Services Offered
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Residential Windows
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Aluminum Window Frames
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Bay Windows
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Double-Hung
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Window Replacement
Smithtown Window Replacement and Doors
Smithtown, NY-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Fast Delivery
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Glass Showers
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Residential Windows
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Commercial Windows
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Bay Windows
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Energy-Efficient Options
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Double-Hung
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Custom Window Designs
Calculate how much you can expect to pay for window installation and replacement in Stratford, 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 Stratford Saves You Money
Upgrading to energy-efficient windows can improve the comfort of your home and help you save on energy bills. Here are more details about how upgrading your windows could benefit you:
- Save money on energy bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Replacing your windows with energy-efficient models can help reduce how much you have to pay, therefore saving you about 12% more on your bills.
- Protect your investment: When you have an older home, your windows could also be outdated or damaged. Upgrading your windows is an important part of maintaining your property and its value.
- Better temperature control in your home: Living in a very cold place like Stratford can often mean needing your heater to keep your home cool. Energy-efficient windows can cut back on how much heat is lost through your windows when heating your home.
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Stratford
Windows come in various shapes and sizes, so costs and services will differ greatly. Here are the average costs and the primary services that you'll find from window installers.
How Much Do New Windows Cost?
Generally, homeowners in Stratford can anticipate that most replacement window installations will range from $250 to $1,200, with the average cost at about $600. But costs will vary considerably based on your location, the number of windows you need, the quality of your products and the current condition of your home. Many window companies also offer door installations and other add-ons like coating, baths, shutters and more. Additional services will increase your overall project costs.
Keep in mind that energy-efficient windows may cost more, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. Your exact savings will vary depending on your local climate, energy rates and individual home characteristics.
Getting free quotes from several installers is the best way to figure out which one will work best for your budget.
What Services do Window Installers Offer?
In regard to window replacements, in general there are two types that your installer will offer: 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 rot or deterioration. With this service, your professionals will replace the full window, including the sill, frame and trim. Pocket installations (or retrofits) entail installing a new window within the existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any damage or rot, you should opt for a full-frame installation instead.
Your window installation company should be able to help you decide which type of installation you need.
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 Stratford
EcoWatch differs from other reviewers since we look at these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and ranked them using the following methodology:
Service Area
Since this is a guide for Stratford, we paid more attention to companies that serve the city. There are certainly reputable providers that didn't make the list because they wouldn't be able to serve homeowners in Stratford.
Work Quality
We're willing to bet that you're looking for professionals who do a great job installing windows. We've vetted each company included in our guide to ensure its technicians are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to determine the companies with the most consistent customer satisfaction. Customer satisfaction may be the most important factor, as it reflects the quality of services across nearly every category, including quality of installation, professionalism, quality of parts, warranty, cost and more.
Cost
This one is a give-and-take: as with most services, cheap window installers are not going to provide the most quality service. On the other hand, we want to ensure we're highlighting companies that offer a range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a considerable investment, so you'll want to make sure that investment is well protected. 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 years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
Stratford, CT Window Replacement FAQs
How much does window installation cost?
The national average cost of installing a single window is around $600 but can range between $200 and $1,200, based on a few different factors. The price is usually dependent on the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What type of window is the best for energy efficiency?
A window's energy efficiency is affected by a variety of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are typically the most energy-efficient since they are certified by the U.S. Department of Energy.
Can you install your own windows?
Even though it is possible to install your own windows, doing so is time-consuming and requires a lot of experience with home improvement projects. Hiring a professional can help ensure that the job is done properly and that you can avoid spending the time and effort of doing it yourself.
How long does window installation generally take?
Because the average installation time of a window is 30 minutes, around 16 windows can be installed during an 8-hour work day.