20 Best Window Companies in East Granby, CT (2023 Reviews)
Looking to upgrade your home's windows? We've got you covered in this list of the top window installation companies.
We analyzed all the top-rated window companies in East Granby 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
Although environmentally friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house's energy efficiency can also have a considerable impact on home energy conservation. Potential leaks or drafts can cut your home's energy efficiency by up to 30%, according to the Department of Energy. In East Granby, that's an average of $446 per year that you could save on your energy bills after making the switch.
That's not great for your wallet or the environment, but one of the top window installation companies can help with that.
Unlike other sites, EcoWatch ranks window companies based on energy efficiency while also taking into consideration cost, customer satisfaction and service area.
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 East Granby
The EcoWatch Reviews team examined dozens of installers that serve the East Granby area to find the best window installation companies that fit our standards. The providers we've reviewed in this article scored best in our categories, including energy-efficient offerings, availability, customer service, price and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in East Granby. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for about 27 years.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the company for you.
Energy Efficiency of Window World WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for 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 East Granby?Prices aren’t mentioned on Window World’s website, but it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to know for sure.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen offers the best availability in East Granby. This company has 27 years of experience in the window installation business, and it has proved to be one of the most respected companies in East Granby. Its reputation is backed by many positive reviews on customer review websites.
You may want to consider going with Andersen if you're looking for a company 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 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 be sure to mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in East Granby?Andersen does not display 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. Getting a free quote on its website is the best way to get more accurate pricing information.

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. This window installation company has been in business since 1999 and currently provides services to 13 states and Washington D.C. The company has hundreds of glowing reviews from customers online.
You may want to consider opting for 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 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 be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Aeroseal Windows cost in East Granby?Prices aren’t listed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. You can inquire about a free quote on its website for more information about the cost.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation offers the best residential windows in East Granby. This company has 16 years of experience in the window installation business, and it has proved to be one of the most respected companies in East Granby. Its reputation is backed by many positive reviews on customer review websites.
You may want to consider going with Window Nation if you're looking for 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 be sure to mention that you’d like Energy Star windows when inquiring.
How much does Window Nation cost in East Granby?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. Getting a free quote on its website is the best way to get more accurate pricing information.
We aim to stay unbiased and transparent by describing pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in East Granby
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Sliding Glass
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Glass Showers
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Stained Glass
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Commercial Windows
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Double-Hung
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Custom Window Designs
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Residential Windows
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Window Replacement
Window World of Hartford
Manchester, 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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Commercial Windows
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Bay Windows
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Window Repair
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Window Replacement
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Sliding Glass
Window Nation
Wallingford, CT-
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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Sliding Glass
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Residential Windows
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Window Replacement
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Double-Hung
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Custom Window Designs
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Stained Glass
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Energy-Efficient Options
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Bay Windows
Long Home Products
Windsor, 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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Residential Windows
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Double-Hung
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Custom Window Designs
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Bay Windows
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Glass Showers
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Window Replacement
Harris Home Improvement
Granby, CT-
Good Customer Service
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Free assessment
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Timely Service
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Price Transparency
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Educational Website
Services Offered
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Glass Showers
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Fast Delivery
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Window Replacement
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Window Repair
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Residential Windows
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Double-Hung
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Custom Window Designs
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Commercial Windows
ProEdge Remodeling by Custom Built
Windsor, CT-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Commercial Windows
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Custom Window Designs
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Energy-Efficient Options
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Sliding Glass
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Residential Windows
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Double-Hung
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Window Replacement
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Fast Delivery
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Bay Windows
United Home Experts of Hartford County
Enfield, CT-
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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Custom Window Designs
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Window Replacement
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Residential Windows
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Double-Hung
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Commercial Windows
A-1 Windows & Doors LLC
Simsbury, CT-
Good Customer Service
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Free assessment
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Timely Service
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Window Replacement
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Window Repair
Innerglass Window Systems
Herman Dr, CT-
Price Transparency
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Free assessment
Services Offered
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Stained Glass
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Tempered Glass
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Custom Window Designs
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Window Replacement
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Residential Windows
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Energy-Efficient Options
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Commercial Windows
Mercury Excelum Inc
East Windsor, CT-
Good Customer Service
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Educational Website
Services Offered
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Energy-Efficient Options
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Commercial Windows
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Residential Windows
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Window Replacement
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Fast Delivery
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Custom Window Designs
Home Services at The Home Depot
Enfield, CT-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Glass Showers
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Double-Hung
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Stained Glass
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Fast Delivery
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Residential Windows
Highland Window Company, LLC
West Hartford, CT-
Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Double-Hung
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Window Replacement
Marvin
Enfield, CT-
Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Double-Hung
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Sliding Glass
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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
Big Dawg Home Improvements
South Windsor, CT-
Free assessment
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
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Fast Delivery
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Bay Windows
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Aluminum Window Frames
Finestra Windows & Installation
West Hartford, CT-
Free assessment
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Price Transparency
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Educational Website
Services Offered
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Window Replacement
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Custom Window Designs
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Glass Showers
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Tempered Glass
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Double-Hung
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Residential Windows
BuildEx Construction Inc
West Springfield, MA-
Price Transparency
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Timely Service
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Educational Website
Services Offered
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Window Replacement
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Commercial Windows
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Custom Window Designs
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Full-Service Installations
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Fast Delivery
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Residential Windows
Pella Windows & Doors of West Springfield
West Springfield, MA-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Window Replacement
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Bay Windows
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Double-Hung
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Sliding Glass
Peoples Products - HR40 Windows
Newington, CT-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Window Replacement
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Aluminum Window Frames
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Residential Windows
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Commercial Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
Energy Busters LTD
Hartford, CT-
Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Residential Windows
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Window Replacement
Turner Home Improvement Contractors, LLC
Glastonbury, CT-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
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Timely Service
Services Offered
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Commercial Windows
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Window Replacement
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Residential Windows
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Double-Hung
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Custom Window Designs
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Fast Delivery
Calculate how much you can expect to pay for window installation and replacement in East Granby, 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 East Granby Saves You Money
By upgrading to energy-efficient windows, you and your family can enjoy several benefits, such as:
- Better temperature control in your home: Living in a very cold city like East Granby can often mean needing your heater to keep your house cool. Energy-efficient windows can cut back on how hard your heating system needs to work to heat your home.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its real estate value.
- Save money on energy bills: Switching to energy-efficient windows lowers your energy bills by about 12% since you use less energy.
Estimated Cost of Window Replacement in East Granby
Let's go over the cost of installing new windows and the kinds of services you may need for your home.
How Much Do New Windows Cost?
Even though the average of replacing one window is around $600, it can range anywhere from $200 to $1,200. Costs will vary significantly based on the current condition of your home, your location, the quality of your products and the number of windows you need. A lot of window companies also offer replacement door installations and other add-ons like baths, coating, shutters and more. These extra services will increase your overall project costs.
It's also worth noting that energy-efficient windows will usually cost more upfront, but Energy Star estimates that upgrading the windows on your East Granby home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. The amount of money you'll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Requesting free quotes from multiple providers is the best way to figure out which one will work best for your budget.
What Services do Window Installers Offer?
In general, there are two types of window installation services companies offer: full-frame and pocket installations.
A full-frame installation is a replacement of the total window. It involves removing the old window, the windowsill, and the exterior and interior trim. It can also involve additional materials, such as insulation and drip edges, which raise the total cost of the project. It's also worth noting that it's not uncommon for homeowners to have to touch up the paint surrounding the window after a full-frame installation. A pocket installation involves installing a new window within the existing frame. This means instead of tearing out the whole unit and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
If you're unsure which kind of window installation service you need, your installer can advise you. Typically, the choice is based on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in East Granby
The EcoWatch Reviews team is different from other reviewers since we assess these companies through a sustainability lens. We have reviewed the top window replacement companies in East Granby primarily based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find a quality window installation company near you.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each company included in our guide to make sure its technicians are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across nearly every category, including quality of parts, professionalism, cost, warranty, quality of installation and more.
Cost
This one is a give-and-take: as with other services, cheap window companies are not going to provide the highest quality service. Still, we want to ensure we're highlighting companies that provide a spectrum of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to East Granby's climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of East Granby window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
East Granby, CT Window Replacement FAQs
What is the average cost to install windows?
The national average cost of replacing a window is about $600 but can range between $200 and $1,200, based on several factors. The price is usually influenced by the size of the window, the location of your property and the type and material 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.
What kind of window is the best for energy efficiency?
A window's energy efficiency depends on a variety of factors, such as 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.
What do window installation companies do?
Window installers cover the entire process — from replacing your old windows with brand new ones to cleaning up after the windows have been put in place. In addition, many companies offer window manufacturing, customization and repairs.
Should I replace my windows all at the same time?
If you're upgrading your windows to save on your energy bills, replacing all of your windows together is the only way to gain that benefit. However, if you have just a few windows that are broken or drafty, you can replace just those.