27 Best Window Replacement Companies in Seymour, CT (2023 Reviews)
Window Companies Near Me
When you need to replace your windows, our list of the top window installation companies can help you find the right provider for you.
We analyzed all the top window installers in Seymour and selected the top 27 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 lowering your carbon footprint, improving your home's energy efficiency can also have a big impact on home energy conservation. Potential leaks or drafts can reduce your home's energy efficiency by up to 30%, according to the Department of Energy. In Seymour, that's around $420 a year that you could save on your electric bills after making the switch.
That's bad news for both your wallet and the environment, but one of the top window installation companies can help you with that.
We've put together this guide on the top installation companies to help you in your research, so you can not only benefit from brand new windows, but also save money on your electric bills.
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
- No lifetime warranty
Best Affordability
Window World
- Low prices relative to competitors
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Award-winning company
- Custom designs
- Installation not covered by warranty
Best Window Replacement Companies in Seymour
The EcoWatch team researched several window installation companies across Seymour to narrow our list down to the best ones. The companies we've mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, price, local expertise and beyond.

Renewal by Andersen
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Great industry reputation
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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
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows industry, and it has become one of the most respected companies in the business. The company has plenty of glowing reviews from customers online.
Andersen may be the company for you if you're interested in 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Seymour?Andersen doesn't have any pricing information listed 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. The best way to get more accurate pricing information is to receive a free quote from the company.

Window World
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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 Seymour. Window World has around 27 years of experience in the window replacement business.
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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Seymour?Window World does not list prices on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on the cost, you can receive a quote from the company.

Window Nation
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Manufactures products in-house
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Award-winning company
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Custom designs
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Installation not covered by warranty
Window Nation has the best residential windows in Seymour. This provider has 16 years of experience in the window installation industry, and it has proved to be one of the most reputable companies in the business. Many positive reviews on customer review websites back the company's reputation.
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 WindowsEach 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. Not all of Window Nation's windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Window Nation cost in Seymour?Window Nation does not display 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. For more accurate information on pricing, you can inquire about 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 Seymour. 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. This company has 23 years of experience in the window installation business, and it has established itself as one of the best companies in Seymour. Hundreds of positive reviews on customer review websites back the company's reputation.
If you're looking for a company that installs windows and doors at businesses across the Eastern U.S, Aeroseal may be the provider for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner and offers 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 make sure to mention that you want energy-efficient windows to your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Seymour?Prices are not available on Aeroseal's website since the cost of window installment depends on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. If you'd like to know for sure, you can inquire about a quote on the company's website.
We strive to be unbiased and transparent by describing pros and cons for every provider. Additionally, any partnerships do not affect our reviews.
More Window Replacement Companies in Seymour
Renewal by Andersen - Branford
Branford, CT-
Excellent Customer Service
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Locally Recognized for Quality
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Price Transparency
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Helps Educate Customers
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 & Bow Windows
TL Home Improvement LLC
Shelton, CT-
Good Customer Service
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Reliable Service
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Free Quotes
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Price Transparency
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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Award-Winning
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Arrives on Time
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Price Transparency
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-
Locally Recognized for Quality
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Good Customer Service
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Dependable Service
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Educational Website
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
Mr. Handyman of Upper Fairfield County
Fairfield, CT-
Arrives on Time
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Dependable Service
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Good Customer Service
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Locally Recognized for Quality
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Residential Windows
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Commercial Windows
The Window People
Stamford, CT-
Consistent Workmanship
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Excellent Customer Service
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No-fee 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 Windows
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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
Advanced Window Systems LLC
Cromwell, CT-
Excellent Customer Service
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No-fee Quotes
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Reliable Service
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Reliable Appointment Windows
Services Offered
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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
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Bay & Bow Windows
Eastern Glass & Shower Door
Milford, CT-
Price Transparency
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Excellent Customer Service
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Educational Website
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Free Quotes
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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Business Windows
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Aluminum Window Frames
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Sliding Glass
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Glass Showers
Mainville Windows & Doors
Newington, CT-
No-fee Quotes
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Excellent Customer Service
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Educational Website
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Price Transparency
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
V. Nanfito Roofing & Siding
Meriden, CT-
Price Transparency
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Arrives on Time
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Educational Website
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Good Customer Service
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-
No-Hassle Pricing
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Timely Service
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Dependable Service
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Helps Educate Customers
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
Reliable Service
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No-fee Quotes
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Good Customer Service
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No-Hassle Pricing
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
Capitol Glass Co Inc
West Hartford, CT-
Good Customer Service
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No-fee Quotes
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No-Hassle Pricing
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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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Doors
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Sliding Glass
Torrington Replacement Windows
Torrington, CT-
Price Transparency
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Excellent Customer Service
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Free Quotes
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Helps Educate Customers
Services Offered
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Architectural Glass
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Energy-Efficient Options
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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
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Bay & Bow Windows
Clinton Glass
Clinton, CT-
Award-Winning
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Good Customer Service
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Helps Educate Customers
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No-fee Quotes
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 Windows
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Commercial Windows
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Sliding Glass
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Good Customer Service
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Award-Winning
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Price Transparency
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No-fee Quotes
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-
Timely Service
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Educational Website
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
Window King of Connecticut
Stamford, CT-
Price Transparency
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Helps Educate Customers
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Good Customer Service
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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
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Good Customer Service
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Consistent Workmanship
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Free Quotes
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No-Hassle Pricing
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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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay Windows
Wallingford Glass
Wallingford, CT-
Good Customer Service
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Reliable Service
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No-Hassle Pricing
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No-fee Quotes
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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Commercial Windows
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Double-Hung
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Stained Glass
Ring's End
Madison, CT-
Helps Educate Customers
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Price Transparency
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No-fee Quotes
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Good Customer Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Commercial Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Ring's End
Branford, CT-
No-fee Quotes
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No-Hassle Pricing
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Educational Website
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Good Customer Service
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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Commercial Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Ring's End
South Salem, NY-
Good Customer Service
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No-Hassle Pricing
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Free Quotes
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Helps Educate Customers
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Business Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Cussons Sash
Glastonbury, CT-
Excellent Customer Service
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Educational Website
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Free Quotes
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Sliding Glass
Fiderio & Sons
Meriden, CT-
Arrives on Time
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Free Quotes
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Price Transparency
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Reliable Service
Services Offered
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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
J C Tonnotti Window Co
Southington, CT-
Excellent Customer Service
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Timely Service
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Dependable Service
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Free Quotes
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
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Double-Hung
Window Nation
Wallingford, CT-
Locally Recognized for Quality
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Reliable Service
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Excellent Customer Service
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Helps Educate Customers
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
How Installing Energy-Efficient Windows in Seymour Saves You Money
Upgrading to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here are more ways switching out your windows could help you:
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help reduce damage from the sun's UV rays to your floors, carpets and furniture.
- Reduce your carbon footprint: In Seymour, you can reduce your indirect greenhouse gas emissions by about 147 pounds per year once you install energy-efficient windows.
- Save on power bills: Switching to energy-efficient windows reduces your energy bills by about 12% because you need less energy.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, especially if you have an older home.
Estimated Cost of Window Replacement in Seymour
Windows come in various shapes and sizes, so costs and services will differ tremendously. Here are the average costs and services that you can find from the average window installation company.
How Much Do New Windows Cost?
On average, homeowners in Seymour can anticipate that most window installations will cost between $250 and $1,200, with the average cost at around $600. Costs will differ considerably based on the current condition of your home, the quality of your products, your location and the number of windows you need. Many window companies also offer door installations and other add-ons like baths, coating, shutters and more. Additional services will increase overall project costs.
With windows, efficiency is the most important factor for most homeowners. Windows with higher efficiency may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Seymour homeowners $420+ a year after replacing single-pane windows.
How much your window installation costs will also vary depending on the kind of window material you choose for the frames. Wood windows are generally the most expensive, but it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
The first thing to ask yourself when planning on installing new windows is: Should you get a full-frame installation or a pocket installation?
Full-frame installations are usually done when you want a new style or your window has a lot of rot or deterioration. With this service, your installers will replace the total window, including the frame, sill and trim. Pocket installations (or retrofits) entail replacing a window within the existing frame, which makes pocket installations more simple and affordable. But, if the frame has any damage or rot, you will likely need a full-frame installation instead.
Your window installation company will be able to advise you on the best type for your project. In Seymour, the decision will mostly be influenced by how much damage there is currently and the age of your existing frames.
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
- No lifetime warranty
Best Affordability
Window World
- Low prices relative to competitors
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Award-winning company
- Custom designs
- Installation not covered by warranty
How We Choose the Best Window Installers in Seymour
In our hunt to make your home improvements easier and more eco-friendly in Seymour, EcoWatch evaluated dozens of companies before settling on these. We've decided to assess the top window installation companies in Seymour 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 have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve Seymour so you can find a quality window installation company near you.
Work Quality
We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer on this list to make sure 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 customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across most other categories, including quality of installation, quality of parts, warranty, cost, professionalism and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing providers' prices, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a significant investment, so you'll want to be certain that investment is well protected. Window installation companies with 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 a good track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Seymour, CT Window Replacement FAQs
How much should window installation cost?
The national average cost to replace a window is about $600 but can range between $200 and $1,200, depending on several factors. The price is generally 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 upfront but can save you hundreds of dollars a year in energy bills.
Which kind of window is the best?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are more efficient than windows that do. If you want to be sure you'll have the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — they're certified energy-efficient by the U.S. Department of Energy.
What do window installation companies do?
Window installation professionals travel to your house to remove your old windows and replace them with new ones. Some providers install products made by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.
How long does it usually take to install windows?
Because the average installation time of a window is 30 minutes, about 16 windows can be installed in a typical 8-hour work day.
How do you know it's time to replace your windows?
Windows usually have a lifespan of around 20 to 30 years, but anytime you notice damage on your windows, it's a good time to have them looked at by an expert to determine if they need any repairs or replacements.