21 Best Window Replacement Companies in Hartford, CT (Jan 2023)
Window Companies Near Me
Looking to replace your windows? We've got you covered in this guide to the top window installation companies.
We analyzed all the top window installers in Hartford and selected the top 21 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 January 12, 2023
Why you can trust EcoWatch
A review of the top window installation companies in Hartford may not seem like the most compelling article on EcoWatch, but trust us, windows have more of an impact on your life than you might think. If your house has traditional, outdated windows, your HVAC system could be working extra hard to heat or cool your house. This means higher electricity bills.
Installing energy-efficient windows on your house can help you save money each month on your power bills — and you can help the environment, too.
So if you're constructing a new home, renovating or changing out old windows in Hartford, this guide is the best place to get started.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Member of US Green Building Council
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Great industry reputation
- Many years of experience
- Not ideal for residential installations
Best Window Replacement Companies in Hartford
The EcoWatch Reviews team evaluated many window installation companies across Hartford to narrow our list down to the best ones. The providers mentioned in this article scored best in our categories, including energy-efficient offerings, customer service, price, availability and more.

Window World
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Lifetime warranty
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Large serice area
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EnergyStar Partner
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Quality of service will depend on your area
Window World provides windows expertise in Hartford. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the window installation business.
You may want to consider choosing Window World if you're interested in a installer that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's offerings are Energy Star certified, so be sure to mention that you're interested in Energy Star windows when inquiring.
How much does Window World cost in Hartford?Even though prices are not readily available on Window World's website, it's known for offering some of the most affordable window installations around. If you'd like more accurate pricing information, you can request a quote on the company's website.

Renewal by Andersen
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Award-winning company
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Manufactures products in-house
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Member of US Green Building Council
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No lifetime warranty
Renewal by Andersen offers the best availability in Hartford. This company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia. Many positive reviews on customer review websites back the company's reputation.
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 WindowsThere are a wide range of window types that Renewal by Andersen offers, 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 Hartford?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. For more accurate information on pricing, you can get a quote from the company.

Aeroseal Windows
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Low number of customer complaints
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Great industry reputation
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Many years of experience
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Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in Hartford. 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. Aeroseal has over 23 years of experience in the industry, and it currently serves 13 states and Washington D.C. Many positive reviews from customers online back the company's reputation.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide range of window types that Aeroseal Windows offers, some of which are Energy Star products. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Hartford?Prices aren't available on Aeroseal's website, but it provides high-quality windows at a competitive price point. You can ask for a free quote on its website for more information about pricing.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of experience in the window installation business. Hundreds of positive reviews from customers online back the provider's reputation.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation offers 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. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Hartford?Even though prices are not available on Window Nation's website, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. If you'd like more accurate pricing information, you can inquire about a quote on the company's website.
Please note that the companies in this section are national, which means the quality of the service may depend on your local crew. We have tried to stay unbiased and transparent by including pros and cons for every company.
More Window Replacement Companies in Hartford
Renewal by Andersen - Branford
Branford, CT-
Consistent Workmanship
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Good Customer Service
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Educational Website
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Reliable Appointment Windows
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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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Renewal by Andersen - Southern New England
Windsor Locks, CT-
No-fee Quotes
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No-Hassle Pricing
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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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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 Windows
Nu-Face Home Improvements
Plantsville, CT-
Locally Recognized for Quality
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Excellent Customer Service
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No-Hassle Pricing
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Arrives on Time
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 Windows
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Double-Hung
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Sliding Glass
Advanced Window Systems LLC
Cromwell, CT-
Arrives on Time
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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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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-
Reliable Appointment Windows
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No-fee Quotes
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No-Hassle Pricing
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Consistent Workmanship
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
United Glass & Mirror Co
Bozrah, CT-
Educational Website
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Locally Recognized for Quality
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Heavy Glass
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Tempered Glass
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Doors
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Custom Windows
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Commercial Windows
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Sliding Glass
Window World of Hartford
Manchester, CT-
Helps Educate Customers
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Good Customer Service
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Reliable Appointment Windows
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No-Hassle Pricing
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
National Vinyl LLC | National Vinyl Windows
Chicopee, MA-
Helps Educate Customers
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Free Quotes
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Excellent Customer Service
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Timely 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-
Dependable Service
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Locally Recognized for Quality
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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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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-
Award-Winning
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Good Customer Service
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No-fee Quotes
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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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Commercial Windows
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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
No-fee Quotes
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Dependable Service
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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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Business Windows
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Full-Service Installations
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Custom Windows
Peter L Brown
Granby, CT-
Excellent Customer Service
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Free Quotes
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Educational Website
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Reliable Appointment Windows
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
Capitol Glass Co Inc
West Hartford, CT-
Helps Educate Customers
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No-Hassle Pricing
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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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Architectural Glass
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Doors
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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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Commercial Windows
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Sliding Glass
Torrington Replacement Windows
Torrington, CT-
Educational Website
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Excellent Customer Service
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No-fee Quotes
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No-Hassle Pricing
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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Commercial 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-
Excellent 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 Window Designs
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Commercial Windows
Villwell Builders, LLC
Waterbury, CT-
Educational Website
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No-Hassle Pricing
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Reliable Appointment Windows
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Locally Recognized for Quality
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
Pella Windows & Doors of West Springfield
West Springfield, MA-
Educational Website
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No-fee Quotes
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Award-Winning
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Good Customer Service
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-
Free Quotes
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Good Customer Service
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Price Transparency
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Reliable 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 Windows
Wallingford Glass
Wallingford, CT-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Reliable 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 Window Designs
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Business Windows
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Double-Hung
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Stained Glass
Ring's End
Madison, CT-
No-fee Quotes
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Educational Website
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No-Hassle Pricing
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Excellent 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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Business 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-Hassle Pricing
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No-fee Quotes
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Excellent Customer Service
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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 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
How Installing Energy-Efficient Windows in Hartford Saves You Money
Energy-efficient windows can offer benefits in several ways. Here are a few reasons you may want to consider making the switch:
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can reduce your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.
- Save money on energy bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of residential energy use. Switching to energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in Hartford
Each window replacement company offers varying services and has different price points depending on a few factors.
How Much Do New Windows Cost?
According to our market research, the typical cost of replacing a single window is about $600. However, window installation costs can range from $200 to $1,200 a window. This is because of the fact that window installations depend on several factors specific to your home, such as the size, material and number of windows you need to install, as well as where your property is located.
It's important to remember that windows with the best efficiency may cost more initially but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save Hartford homeowners $437+ a year when replacing single-pane windows.
We recommend getting free quotes from multiple window installation companies to find the one that works best for your budget.
What Services do Window Installers Offer?
The first thing to ask yourself when considering a window replacement is: Do you need a full-frame installation or a pocket installation?
A full-frame installation replaces the complete window, including the windowsill, frame, trim and the window panes. Because this kind of installation is more involved, it will be more expensive than a pocket installation. Pocket installations (or retrofits) involve replacing a window within its existing frame, which makes pocket installations more simple and affordable. But, if the frame has any damage or rot, you should opt for a full-frame installation instead.
If you're still trying to decide which kind of installation to get, you can talk to your provider and get their advice. The choice mostly is influenced by how old the frames are and if there's any damage present.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Member of US Green Building Council
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Great industry reputation
- Many years of experience
- Not ideal for residential installations
How We Choose the Best Window Installers in Hartford
EcoWatch reviews are different from most reviews because we assess these companies through a sustainability lens. We have assessed the top window installers in Hartford 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 lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for Hartford, we only included companies that cover the city. There are certainly other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Hartford.
Work Quality
We're willing to bet that you're looking for professionals who do a great job installing windows. We've vetted each installer included in our guide to make sure its contractors are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don't have good feedback about their service from a certain company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: as with most services, cheap window installation companies won't always provide the most quality service. Still, we want to ensure we're highlighting companies that offer a wide range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed, windows are a significant investment, so you'll want to make sure that investment is protected. Window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Hartford, CT Window Replacement FAQs
How much does window installation cost?
The national average cost to replace a single window is about $600 but can range from $200 to $1,200, based on a variety of factors. The price is generally dependent on the location of your property, the type and material of the window and the size of the window. Also, bear in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
Which kind of window is the best?
A window's energy efficiency depends on several 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.
Do I really have to use a window installation company?
Unless you have experience with home improvement projects and have all the tools you need to replace your own windows, we recommend hiring the pros. The window installation process is complex and can take anywhere from four to six hours for a single window. Although it's tempting to try to save some money by doing it yourself, hiring a company is a faster, more efficient and safer option.
How long does window installation typically take?
Since the average installation time is 30 minutes per window, about 16 windows can be installed in a typical 8-hour work day.
When is it time to replace your windows?
Windows generally have a lifespan of about 20 to 30 years, but anytime you see damage on your windows, it's a good idea to have them looked at by an expert to determine if they are in need of a repair or replacement.