20 Best Window Companies in Conning Towers-Nautilus Park, CT (2023 Reviews)
Looking to improve your property's appearance? The best window replacement companies can help.
We analyzed all the top-rated window companies in Conning Towers-Nautilus Park 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 renewable energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home's efficiency can also have a big impact on home energy conservation. Drafty, leaky windows can cost you in electric bills. In fact, the Department of Energy estimates that about 30% of your home's heat or cool air could be lost through your windows.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
Efficient windows are of particular importance in Conning Towers-Nautilus Park, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $424 per year.
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 Conning Towers-Nautilus Park
The EcoWatch team evaluated dozens of installers in Conning Towers-Nautilus Park to find the top ones for our readers. We assessed the installers based on energy-efficient offerings, coverage area, local experience, 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 Conning Towers-Nautilus Park. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been in business since 1995 and currently serves 200 locations nationwide. Its reputation is backed by all the positive reviews on customer review websites.
It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Conning Towers-Nautilus Park?Prices aren’t displayed on Window World’s website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate information.

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 Conning Towers-Nautilus Park. Andersen has over 27 years of industry experience, and it currently provides services to nearly every state except Mississippi and West Virginia.
It has established itself as 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 variety 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 Conning Towers-Nautilus Park?Prices are not available on Andersen’s website since the cost of window installment differs based on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to know for sure is to get a free 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 is an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has around 23 years of industry experience, and it currently provides services to 13 states and Washington D.C. Hundreds of positive reviews on customer review websites back the provider's reputation.
If you’re looking for a company that installs windows and doors at businesses across the Eastern U.S, Aeroseal may be the perfect provider for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner and offers a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Conning Towers-Nautilus Park?Prices aren’t available on Aeroseal’s website, but it provides high-quality windows at a competitive price point. The best way to know for sure is to request a free quote from the company.

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 has the best residential windows in Conning Towers-Nautilus Park. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has been in business since 2006 and currently serves residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by all the positive reviews on customer review websites.
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 has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Conning Towers-Nautilus Park?Prices aren’t displayed 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. Requesting a free quote on its website is the best way to get more accurate information.
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 be unbiased and transparent by describing both pros and cons for every company.
More Window Companies in Conning Towers-Nautilus Park
Renewal by Andersen - Branford
Branford, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Stained Glass
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Double-Hung
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Custom Window Designs
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Sliding Glass
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Residential Windows
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Commercial Windows
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Window Replacement
Window World of Hartford
Manchester, CT-
Timely Service
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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 Repair
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Window Replacement
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Fast Delivery
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Double-Hung
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Residential Windows
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Commercial Windows
Window Nation
Wallingford, CT-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Sliding Glass
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Custom Window Designs
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Double-Hung
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Residential Windows
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Window Replacement
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Stained Glass
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Bay Windows
Christopher Home Improvement
Norwich, CT-
Timely Service
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Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Custom Window Designs
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Fast Delivery
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Window Replacement
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Commercial Windows
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Residential Windows
United Home Experts of New London County
Norwich, 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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Window Replacement
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Commercial Windows
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Custom Window Designs
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Double-Hung
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Residential Windows
Henderson Roofing
Westerly, RI-
Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Fast Delivery
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Residential Windows
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Glass Showers
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Commercial Windows
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Window Replacement
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Stained Glass
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Full-Service Installations
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Custom Window Designs
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Sliding Glass
Home Services at The Home Depot
Waterford, CT-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Commercial Windows
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Stained Glass
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Window Replacement
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Glass Showers
Creative Enclosures
Bozrah, CT-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Window Replacement
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Fast Delivery
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Residential Windows
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Glass Showers
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Custom Window Designs
Clinton Glass
Clinton, 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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Custom Window Designs
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Glass Showers
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Sliding Glass
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Commercial Windows
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Window Replacement
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Residential Windows
Columbia Glass Inc
Columbia, CT-
Price Transparency
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Good Customer Service
Services Offered
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Custom Window Designs
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Commercial Windows
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Tempered Glass
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Double-Hung
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Residential Windows
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Sliding Glass
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Window Replacement
Turner Home Improvement Contractors, LLC
Glastonbury, CT-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Residential Windows
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Window Replacement
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Fast Delivery
North Shore Window Inc.
Bridgehampton, NY-
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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Fast Delivery
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Double-Hung
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Aluminum Window Frames
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Commercial Windows
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Residential Windows
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Window Replacement
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Custom Window Designs
Guilford Glass Company, Inc.
Guilford, CT-
Price Transparency
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Free assessment
Services Offered
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Window Replacement
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Residential Windows
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Window Repair
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Tempered Glass
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Aluminum Window Frames
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Glass Showers
Nu-Face Home Improvements
Berlin, 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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Double-Hung
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Energy-Efficient Options
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Fast Delivery
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Commercial Windows
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Glass Showers
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Residential Windows
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Window Replacement
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Custom Window Designs
Cussons Sash
Glastonbury, CT-
Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Residential Windows
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Fast Delivery
Big Dawg Home Improvements
South Windsor, CT-
Price Transparency
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Free assessment
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Good Customer Service
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Timely Service
Services Offered
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Bay Windows
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Aluminum Window Frames
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Fast Delivery
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Window Replacement
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Custom Window Designs
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Residential Windows
Yargueta Construction
Newington, CT-
Timely Service
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Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Double-Hung
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Window Replacement
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Residential Windows
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Full-Service Installations
Castle Windows
East Berlin, CT-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Window Replacement
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Residential Windows
Rhode Island Remodeling
Cranston, RI-
Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Window Replacement
Mainville Windows & Doors
Newington, CT-
Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Aluminum Window Frames
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Sliding Glass
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Bay Windows
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Window Replacement
Calculate how much you can expect to pay for window installation and replacement in Conning Towers-Nautilus Park, 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 Conning Towers-Nautilus Park Saves You Money
Switching to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here's more information on how upgrading your windows could benefit you:
- Save money on energy bills: The Department of Energy estimates that heat gained or lost via windows accounts for about 25-30% of household energy use. Installing energy-efficient windows can help lower that number, which helps you save $424 a year on your bills.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will be protected from fading due to their ability to filter out harmful UV rays.
- Better temperature control in your home: Residing in a very cold city like Conning Towers-Nautilus Park often means depending on your heater to keep your house cool. Energy-efficient windows can reduce the amount of heat lost through your windows when heating your home.
- Protect your investment: When you have an older home, your windows could also be outdated or drafty. Upgrading and repairing your windows is an important part of maintaining your property and its real estate value.
Estimated Cost of Window Replacement in Conning Towers-Nautilus Park
Let's go over the cost of window installation and the types of services offered by installers.
How Much Do New Windows Cost?
On average, Conning Towers-Nautilus Park homeowners can anticipate their window replacements to range from $250 to $1,200. The average cost is at approximately $600. How much it will cost you varies based on several factors, like material, type, size, the location of your home, number of windows and more.
It's also worth noting that energy-efficient windows will typically cost more initially, but Energy Star estimates that upgrading the windows on your Conning Towers-Nautilus Park home translates to 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. How much you'll save by switching to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
How much your window installation costs will also vary based on the kind of material you choose for the frames. Wood windows are typically the most expensive, although it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
The first thing to ask yourself when considering a window replacement is: Do you want a full-frame installation or a pocket installation?
Full-frame installations require replacing the full window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has significant damage. Full-frame installations are more comprehensive and will increase overall costs. A pocket installation entails 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.
Your window installer should be able to help you decide which type of installation you need.
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 Conning Towers-Nautilus Park
In our hunt to find the most reliable, eco-friendly window installers in Conning Towers-Nautilus Park, the EcoWatch team assessed dozens of companies before deciding on these. Along with energy efficiency, we assessed several window installers in Conning Towers-Nautilus Park and assigned rankings using the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve Conning Towers-Nautilus Park so you can find the best 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 featured on this list to make sure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across nearly every category, including cost, professionalism, warranty, quality of parts, quality of installation and more.
Cost
This one is a give-and-take: similar to other services, cheap window installers are not going to provide the highest quality service. On the other hand, 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
Protecting your investment in new windows is important. That's why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Conning Towers-Nautilus Park's climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Conning Towers-Nautilus Park window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Conning Towers-Nautilus Park, CT Window Replacement FAQs
What is the average cost to replace windows in a home?
The national average cost to install one window is around $600 but can range from $200 to $1,200, based on several factors. The price is typically influenced by the location of your property, the type and material of the window and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
Which type of window is the best?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models with the blue Energy Star certification — they're certified energy-efficient by the U.S. Department of Energy.
What do window installers do?
Window installation companies will do the entire process — from replacing your old windows with new ones to cleaning up after the windows have been put in place. In addition, a lot of companies offer window manufacturing, customization and repairs.
Should I replace all my windows at once?
If you're upgrading your windows because of energy-efficiency, replacing all your windows together is the only way to see a noticeable difference. However, if you have only a few windows that are broken or leaky, you can replace just those.