22 Best Window Replacement Companies in Stratford, CT (Mar 2023)
Window Companies Near Me
Are you looking to replace your windows? Our list of the best window installation companies can help you narrow down which one to pick.
We analyzed all the top window installers in Stratford and selected the top 22 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
Although clean energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your house's energy efficiency can also have a considerable impact on home energy conservation. Outdated windows could lead to having higher electric bills during the winter or summer months.
Installing upgraded, efficient windows on your house can help you save money each month on your energy bills — and you can help the environment, too.
We've compiled a guide on the top installation companies to help you in your search, so you can not only enjoy brand new windows, but also save money on your electric bills.
Best Affordability
Window World
- Low prices relative to competitors
- Lifetime warranty
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- No lifetime warranty
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Custom designs
- Wide variety of products and services
- Limited service area
Best Window Replacement Companies in Stratford
The EcoWatch team examined dozens of installers across the country to find the best window installation companies for our readers. The companies in this article passed our review standards for energy-efficient offerings as well as price, customer service, local expertise and beyond.

Window World
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Low prices relative to competitors
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Lifetime warranty
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Great industry reputation
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Quality of service will depend on your area
Window World offers windows expertise in Stratford. Window World has been in the window installation industry for about 27 years. Its reputation is backed by all the positive reviews on customer review websites.
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 WindowsWindow World caters to eco-conscious consumers by providing energy-efficient window offerings. 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 Stratford?Prices aren't mentioned on Window World's website, but it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can ask for a quote from the company.

Renewal by Andersen
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Award-winning company
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Great industry reputation
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Manufactures products in-house
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No lifetime warranty
Renewal by Andersen has the best availability in Stratford. This window installation company has been operating since 1995 and currently provides services to nearly every state except Mississippi and West Virginia.
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 WindowsA 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. Not all of Andersen's windows are Energy Star certified, so make sure you mention that you'd like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Stratford?While pricing is not available on Andersen's website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Getting a free quote on its website is the best way to get more accurate pricing information.

Window Nation
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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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Limited service area
Window Nation provides the best residential windows in Stratford. It's 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 installation industry for around 16 years. Its reputation is backed by all the positive reviews from customers online.
It has established itself as a company 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 is an Energy Star partner and has a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Window Nation representative when inquiring about services.
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. Requesting a free quote on its website is the best way to know for sure.

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 is 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 about 23 years of experience in the window installation sector. The company has hundreds of positive reviews from customers online.
You may want to consider choosing Aeroseal if you're interested in a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide variety of window types that Aeroseal Windows offers, some of which are Energy Star products. 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 Stratford?Even though pricing information is not readily available on Aeroseal's website, it provides high-quality windows at a competitive price point. The best way to get more accurate pricing information is to receive a free quote from the company.
We've recommended providers with good reputations, but keep in mind some national companies have independently owned locations in Stratford, so the quality of service may depend on your local crew. We have tried to stay unbiased and transparent by listing pros and cons for each company we reviewed.
More Window Replacement Companies in Stratford
Renewal by Andersen of Long Island
Farmingdale, NY-
Free Quotes
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Consistent Workmanship
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Locally Recognized for Quality
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Helps Educate Customers
Services Offered
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Fast Delivery
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Custom Window Designs
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Renewal by Andersen - Branford
Branford, CT-
Arrives on Time
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Helps Educate Customers
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Dependable Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Custom Window Designs
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
TL Home Improvement LLC
Shelton, CT-
Consistent Workmanship
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Good Customer Service
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Educational Website
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Timely Service
Services Offered
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Residential Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Renewal by Andersen
Stamford, CT-
Excellent Customer Service
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Reliable Appointment Windows
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No-Hassle Pricing
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Nu-Face Home Improvements
Plantsville, CT-
Price Transparency
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Reliable Service
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Helps Educate Customers
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Locally Recognized for Quality
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
Storefront Glass & Metal
Huntington Station, NY-
Consistent Workmanship
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Educational Website
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Architectural Glass
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Heavy Glass
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Mr. Handyman of Upper Fairfield County
Fairfield, CT-
Helps Educate Customers
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Reliable Service
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Excellent Customer Service
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Free Quotes
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Commercial Windows
Giant Siding and Windows
White Plains, NY-
Helps Educate Customers
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No-fee Quotes
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Dependable Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Custom Windows
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Business Windows
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Double-Hung
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Sliding Glass
The Window People
Stamford, CT-
Dependable Service
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Price Transparency
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Free Quotes
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Helps Educate Customers
Services Offered
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Residential Windows
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Architectural Glass
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Eastern Glass & Shower Door
Milford, CT-
Excellent Customer Service
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Free Quotes
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No-Hassle Pricing
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Educational Website
Services Offered
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Doors
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Full-Service Installations
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Custom Windows
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Tempered Glass
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Residential Windows
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Commercial Windows
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Aluminum Window Frames
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Sliding Glass
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Glass Showers
Tri State Window Factory
Deer Park, NY-
Locally Recognized for Quality
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Reliable Appointment Windows
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No-fee Quotes
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Dependable Service
Services Offered
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Custom Windows
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Fast Delivery
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Sliding Glass
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Double-Hung
V. Nanfito Roofing & Siding
Meriden, CT-
Good Customer Service
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Award-Winning
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No-fee Quotes
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Consistent Workmanship
Services Offered
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Residential Windows
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Business Windows
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Full-Service Installations
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Custom Windows
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Educational Website
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No-Hassle Pricing
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Dependable Service
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Locally Recognized for Quality
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Long Island Storefronts
Shirley, NY-
Good Customer Service
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Locally Recognized for Quality
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Consistent Workmanship
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Educational Website
Services Offered
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Architectural Glass
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
Lowe's Home Improvement
Riverhead, NY-
Price Transparency
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Consistent Workmanship
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Good Customer Service
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Free Quotes
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Clinton Glass
Clinton, CT-
No-Hassle Pricing
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Free Quotes
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Award-Winning
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Educational Website
Services Offered
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Residential Windows
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Glass Showers
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Fast Delivery
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Custom Window Designs
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Business Windows
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Sliding Glass
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
No-fee Quotes
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No-Hassle Pricing
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Educational Website
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Excellent Customer Service
Services Offered
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Glass Showers
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Residential Windows
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Architectural Glass
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Doors
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Custom Window Designs
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Commercial Windows
Villwell Builders, LLC
Waterbury, CT-
Helps Educate Customers
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Consistent Workmanship
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No-Hassle Pricing
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Arrives on Time
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
Window King of Connecticut
Stamford, CT-
Free Quotes
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Price Transparency
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Helps Educate Customers
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Timely Service
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Cascella And Sons Construction Corp.
Central Islip, NY-
Price Transparency
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Free Quotes
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Custom Windows
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Commercial Windows
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Double-Hung
THE GLASS EMPORIUM INC.
Kings Park, NY-
Excellent Customer Service
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Arrives on Time
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Free Quotes
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Price Transparency
Services Offered
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Residential Windows
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Heavy Glass
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Tempered Glass
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Wallingford Glass
Wallingford, CT-
Excellent Customer Service
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No-Hassle Pricing
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Free Quotes
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Consistent Workmanship
Services Offered
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Residential Windows
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Tempered Glass
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Doors
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Custom Window Designs
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Business Windows
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Double-Hung
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Stained Glass
How Installing Energy-Efficient Windows in Stratford Saves You Money
There are quite a few perks of switching to energy-efficient windows. Some reasons you may want to consider making the change include the following:
- Save money on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up about 25-30% of household energy use. Installing energy-efficient windows can help decrease that amount, which helps you save more on your bills.
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, drafty or potentially even damaged in some way. Upgrading your windows could help raise the value of your home if you decide to sell.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can reduce your carbon footprint by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Stratford
Windows come in different purposes, shapes and styles, so costs and services will differ tremendously based on your project. Below, we detail the average cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
Typically, 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 significantly based on your location, the current condition of your home, the number of windows you need and the quality of your products. A lot of window companies also offer replacement door installations and other add-ons like shutters, coating, baths and more. These extra 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 Affordability
Window World
- Low prices relative to competitors
- Lifetime warranty
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- No lifetime warranty
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Custom designs
- Wide variety of products and services
- Limited service area
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 are the different kinds of windows?
The most common types of windows for homes are awning windows, slider windows, picture windows, casement windows, double-hung and single-hung windows, transom windows and bay windows.
What do window installation companies do?
Window installers visit your house to remove your old windows and replace them with new ones. Some companies install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation is finished.
When is the best time of year to replace windows?
Though you can install windows any time of year, warmer weather is typically better for replacing windows. Additionally, the weather should be dry, since rain can make the installation more difficult.
When is it time to replace your windows?
Windows typically last around 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have an expert take a look at them to see if they are in need of a repair or replacement.