27 Best Window Replacement Companies in Granby, 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 pick the right one for you.
We analyzed all the top window installers in Granby 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
The EcoWatch team is all about finding solutions for eco-conscious homeowners in Granby. The Department of Energy estimates that heat gained or lost through traditional or outdated windows could account for nearly 30% of residential energy climate usage. In Granby, where the electric bills are an average of $36 per month, that's almost $$129 per year wasted.
Replacement windows improve your home's insulation, not only making you and your family more comfortable during the summer and winter, but also saving you some money and helping the environment.
Unlike other sites, EcoWatch ranks window companies on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Affordability
Window World
- EnergyStar Partner
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Best for Residential Windows
Window Nation
- Custom designs
- Wide variety of products and services
- Award-winning company
- Limited service area
Best Window Replacement Companies in Granby
The EcoWatch Reviews team researched dozens of installers across the country to find the top window replacement companies for our readers. We assessed the installers based on their energy-efficient offerings, local experience, customer service, coverage area, price and more.

Window World
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EnergyStar Partner
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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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the industry, and it currently provides services to 200 locations nationwide. Many positive reviews on customer review websites back the company's reputation.
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, this may be the perfect company for you.
Energy Efficiency of Window World WindowsThere are a wide range of window types available from Window World, some of which are Energy Star products. 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 Granby?Window World doesn't have any prices displayed 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 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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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen provides the best availability in Granby. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window replacement sector. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider picking 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 WindowsThere are a wide range of window types available from Renewal by Andersen, some of which are Energy Star products. 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 Granby?Andersen does not list prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Receiving a free quote on its website is the best way to get more accurate pricing information.

Window Nation
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Custom designs
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Wide variety of products and services
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Award-winning company
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Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window installation industry for around 16 years. Its reputation is backed by many positive reviews on customer review websites.
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 be sure to mention that you'd like Energy Star windows when inquiring.
How much does Window Nation cost in Granby?Prices aren't listed on Window Nation's 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 detailed information on the cost, you can get 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 offers the best window installation for businesses in Granby. 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 industry, and it has proved to be one of the most respected companies in Granby.
Aeroseal may be the company for you if you want one 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 want Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Granby?Prices are not available on Aeroseal's website since the cost of window installment differs based 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 request a quote on the company's website.
We have tried to be unbiased and transparent by including pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Replacement Companies in Granby
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Locally Recognized for Quality
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Educational Website
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Excellent Customer 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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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Window World of Western Massachusetts
Belchertown, MA-
Dependable Service
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No-fee Quotes
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Helps Educate Customers
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Excellent Customer Service
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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Double-Hung
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Sliding Glass
Nu-Face Home Improvements
Plantsville, CT-
Reliable Appointment Windows
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No-fee Quotes
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Helps Educate Customers
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Excellent Customer Service
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
Advanced Window Systems LLC
Cromwell, CT-
Price Transparency
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Good Customer Service
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No-fee Quotes
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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 Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Mainville Windows & Doors
Newington, CT-
Excellent Customer Service
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Free Quotes
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Dependable Service
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Arrives on Time
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
Window World of Hartford
Manchester, CT-
Helps Educate Customers
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Free Quotes
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No-Hassle Pricing
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Reliable 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
National Vinyl LLC | National Vinyl Windows
Chicopee, MA-
Free Quotes
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No-Hassle Pricing
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Charitable Giving
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Reliable Service
Services Offered
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Double-Hung
V. Nanfito Roofing & Siding
Meriden, CT-
Educational Website
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Consistent Workmanship
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Reliable Appointment Windows
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Good Customer Service
Services Offered
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Residential Windows
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Commercial Windows
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Full-Service Installations
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Custom Window Designs
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
Reliable Appointment Windows
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Consistent Workmanship
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Good Customer Service
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No-fee Quotes
Services Offered
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Residential Windows
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Commercial Windows
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Full-Service Installations
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Custom Windows
Peter L Brown
Granby, CT-
Arrives on Time
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Educational Website
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Free Quotes
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Lowe's Home Improvement
Ware, MA-
Timely 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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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
Capitol Glass Co Inc
West Hartford, CT-
Excellent Customer Service
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Free 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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Business Windows
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Sliding Glass
Torrington Replacement Windows
Torrington, CT-
No-Hassle Pricing
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Educational Website
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No-fee Quotes
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Excellent Customer Service
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
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Good Customer Service
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Free Quotes
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Price Transparency
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Locally Recognized for Quality
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 Windows
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Commercial Windows
Villwell Builders, LLC
Waterbury, CT-
Free Quotes
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Reliable Appointment Windows
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
Pella Windows & Doors of West Springfield
West Springfield, MA-
No-fee Quotes
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Award-Winning
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No-Hassle Pricing
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Price Transparency
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Reliable Service
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No-fee Quotes
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Custom Windows
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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 & Bow Windows
Wallingford Glass
Wallingford, CT-
Price Transparency
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No-fee Quotes
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Consistent Workmanship
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Good Customer Service
Services Offered
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Residential Windows
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Tempered Glass
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Doors
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Custom Windows
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Business Windows
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Double-Hung
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Stained Glass
Cussons Sash
Glastonbury, CT-
Excellent Customer Service
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Free Quotes
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Helps Educate Customers
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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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Commercial Windows
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Sliding Glass
Fiderio & Sons
Meriden, CT-
No-fee Quotes
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Price Transparency
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Timely Service
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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
Major Home Improvements LLC - Roofing
Springfield, MA-
No-fee Quotes
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Reliable Service
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Timely Service
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No-Hassle Pricing
Services Offered
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Custom Windows
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Residential Windows
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Aluminum Window Frames
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Double-Hung
Vovk Home Improvement Siding~Roof~Windows
Feeding Hills, MA-
Dependable Service
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
J C Tonnotti Window Co
Southington, CT-
Free Quotes
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Educational Website
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Reliable Appointment Windows
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Consistent Workmanship
Services Offered
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Custom Windows
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Aluminum Window Frames
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Sliding Glass
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Double-Hung
Window Nation
Wallingford, CT-
Free Quotes
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Reliable Service
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Educational Website
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Good Customer Service
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
AA Glass Inc
Bloomfield, CT-
Excellent Customer Service
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Dependable Service
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No-Hassle Pricing
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Helps Educate Customers
Services Offered
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Glass Showers
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Sliding Glass
Sturdy Home Improvement
Indian Orchard, MA-
No-fee Quotes
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Excellent Customer Service
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No-Hassle Pricing
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Educational Website
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
Yankee Home Improvement
Chicopee, MA-
No-fee Quotes
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Excellent Customer Service
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Reliable Service
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Price Transparency
Services Offered
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Custom Window Designs
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Glass Showers
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Double-Hung
How Installing Energy-Efficient Windows in Granby Saves You Money
When you switch to energy-efficient windows, you may see a few benefits, including:
- Save money on power bills: Once you install energy-efficient windows, you can see a reduction in your bills by about 12% because you'll use less energy to heat or cool your house.
- Protect your investment: When you have an older home, your windows could also be outdated or damaged. Upgrading and repairing your windows is an important part of maintaining your property and its value.
- Decrease your carbon footprint: Decreasing the amount of energy you use also lowers your carbon emissions. You could reduce it by 147 pounds per year on average.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out damaging UV rays.
Estimated Cost of Window Replacement in Granby
Windows come in different styles, purposes and shapes, so costs and services will vary considerably based on your project. Below, we detail the typical cost and services that you'll find from window installers.
How Much Do New Windows Cost?
According to our research, the typical cost to install a single window is around $600. However, window installation costs can range from $200 to $1,200 for each window. These figures vary depending on specific characteristics of your installation, like size, material, type, number of windows, the location of your home and more.
Keep in mind that energy-efficient windows may come at a higher price tag, but Energy Star predicts the upgrade will save you between $101 and $583 per year when installing single-pane windows and between $27 and $197 per year when installing double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.
Requesting free quotes from several installers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
In general, there are two types of window replacement services you can get: full-frame and pocket installations.
A full-frame installation is a replacement of the full window. This service involves removing the old window, the windowsill, and the exterior and interior trim. It also involves other materials, including insulation and drip edges, which raise the overall cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. Pocket installations are simpler and won't carry as large a bill because they entail simply replacing the window within its existing frame. But if the frame has any damage or rot, you may need a full-frame installation instead.
If you're unsure which window installation service you should get, your installer can assist you. Typically, the decision is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Affordability
Window World
- EnergyStar Partner
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Best for Residential Windows
Window Nation
- Custom designs
- Wide variety of products and services
- Award-winning company
- Limited service area
How We Choose the Best Window Installers in Granby
In our hunt to find the most reliable, eco-friendly window installers in Granby, the EcoWatch Reviews team landed on the above companies as the top window installation companies in the city. We've reviewed the top window installation companies in Granby primarily based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for Granby, we paid more attention to companies that serve the city. There are certainly reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Granby.
Work Quality
When selecting new windows, the quality and breadth of services can often play just as important of a role in overall efficiency and performance as the brand you opt for. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If most customers don't have good feedback about their service from a certain company, you won't see it featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing the prices of providers, we gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installation companies that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Granby, CT Window Replacement FAQs
What is the typical cost to install windows in a home?
The average cost to replace one window ranges from $450 to $650. There are several factors that affect the price, including local labor costs, styles and sizes of windows, the number of windows, your property's location, the materials used in designing the windows and how energy-efficient the windows are.
What kind of window is the most energy-efficient?
A window's energy efficiency is influenced by a number of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.
What do window installers do?
Window installation professionals go to your home to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is done.
What time of year is the best time to replace my windows?
Although you can install windows any time of year, warmer weather is usually better for replacing windows. In addition, it shouldn't be raining, as rain can make the installation harder.
When is it time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Other than that, if your windows have damage anywhere on them, or they have become difficult to operate, they may be in need of replacement.