20 Best Window Companies in Groton, CT (2024 Reviews)

When you need to replace your windows, our reviews of the best window installation companies can help you find the provider for you.

We analyzed all the top-rated window companies in Groton and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated June 24, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Although environmentally friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your home’s energy efficiency can also have a considerable impact on home energy conservation. During the winter months, the last thing you want is your heat to leak out of your outdated windows.

That’s bad news for both your wallet and the environment, but one of the best window installation companies can help you with that.

So if you’re building a new home, renovating or updating your windows in Groton, this guide is the best place to get started.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Groton

The EcoWatch Reviews team researched many window providers across Groton to narrow our list down to the best ones. We assessed the providers based on their energy-efficient offerings, coverage area, customer service, local experience, price and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World provides windows expertise in Groton. It's 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 window replacement sector.

If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the perfect provider for you.

Energy Efficiency of Window World Windows

Its 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 windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Window World cost in Groton?

Window World doesn’t have any prices available on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to get a free quote from the company.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in Groton. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement sector.

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, Andersen may be the perfect provider for you.

Energy Efficiency of Renewal by Andersen Windows

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. Not all of Andersen’s windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Groton?

Andersen doesn’t have any prices available on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate pricing information is to get a free quote from the company.

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

Aeroseal Windows provides the best window installation for businesses in Groton. 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 around 23 years of experience in the window replacement sector.

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 Windows

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. Not all of Aeroseal’s windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Aeroseal Windows cost in Groton?

Aeroseal doesn’t have any prices available on its website, but it provides high-quality windows at a competitive price point. The best way to get more accurate pricing information is to get a free quote from the company.

Window Nation logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation provides the best residential windows in Groton. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has around 16 years of experience in the window replacement sector.

If you’re looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, Window Nation may be the perfect provider for you.

Energy Efficiency of Window Nation Windows

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. Not all of Window Nation’s windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.

How much does Window Nation cost in Groton?

Window Nation doesn’t have any prices available on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. The best way to get more accurate pricing information is to get a free quote from the company.

One thing to note is that the following companies are national, meaning the quality of customer service may depend on your local team. We have tried to remain unbiased and transparent by including pros and cons for every company.

More Window Companies in Groton

Renewal by Andersen Window Replacement

Middletown, CT
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options

Website: http://www.renewalbyandersenct.com/
Address: 54 Tuttle Pl #1, Middletown, CT 06457
Phone: (866) 337-4191

Power Home Remodeling

Trumbull, CT
4.7
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://powerhrg.com/
Address: 60 Commerce Dr Suite 150, Trumbull, CT 06611
Phone: (203) 659-4843

Window Nation

Wallingford, CT
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Glass Doors
  • Service icon Double-Hung

Website: https://www.windownation.com/hartford-ct-showroom/
Address: 1070 N Farms Rd Unit 1, Wallingford, CT 06492
Phone: (475) 253-0015

Calvary Remodeling

Mystic, CT
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.calvaryremodeling.com/
Address: 34 Greenmanville Ave, Mystic, CT 06355
Phone: (203) 666-9326

All Time Manufacturing Company, Inc.

Montville, CT
2.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Metal Frames
  • Service icon Storm/Impact Windows
  • Service icon Glass Doors

Website: http://www.alltimemfg.com/
Address: 284 CT-163, Montville, CT 06353
Phone: (860) 848-9258

Home Services at The Home Depot

Waterford, CT
2.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Energy-Efficient Options

Website: https://www.homedepot.com/l/Waterford/CT/Waterford/06385/6215/services
Address: 816 Hartford Turnpike, Waterford, CT 06385
Phone: (860) 317-0206

United Home Experts of New London County

Norwich, CT
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Fiberglass Frames

Website: https://unitedhomeexperts.com/norwich-ct-06360-siding-roofing-windows-doors/
Address: 66 Franklin St, Norwich, CT 06360
Phone: (607) 405-2048

Riverhead Building Supply Store

Greenport, NY
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: http://rbscorp.com/locations/greenport-new-york.aspx
Address: 74500 Main Rd, Greenport, NY 11944
Phone: (631) 477-1906

Clinton Glass

Clinton, CT
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Repair
  • Service icon Energy-Efficient Options
  • Service icon Custom Glass
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Metal Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.clintonglassct.com/
Address: 221 E Main St, Clinton, CT 06413
Phone: (860) 664-3711

Windor Inc

Charlestown, RI
2.9
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Metal Frames
  • Service icon Storm/Impact Windows
  • Service icon Window Replacement/Installation

Website: http://www.windorman.com/
Address: 3856 Old Post Rd, Charlestown, RI 02813
Phone: (401) 364-7579

Kent County Glass

Coventry, RI
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Repair
  • Service icon Mirrors
  • Service icon Energy-Efficient Options
  • Service icon Screen Repair
  • Service icon Vinyl Frames
  • Service icon Glass Showers
  • Service icon Storm/Impact Windows
  • Service icon Window Replacement/Installation

Website: http://www.kentcountyglassinc.com/
Address: 787 Washington St, Coventry, RI 02816
Phone: (401) 821-7889

Turner Home Improvement Contractors, LLC

Glastonbury, CT
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: https://www.turnerhomeimprovement.com/
Address: 182 Oakwood Dr, Glastonbury, CT 06033
Phone: (860) 633-1400

Riverhead Building Supply

Southampton, NY
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: http://rbscorp.com/locations/southampton-new-york.aspx
Address: 40 Powell Ave, Southampton, NY 11968
Phone: (631) 283-2000

Advanced Window Systems LLC

Cromwell, CT
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Bay Windows

Website: https://www.advancedwindowsystems.com/
Address: 14 Alcap Ridge, Cromwell, CT 06416
Phone: (860) 718-4586

Middlesex Glass & Greenhouse

Cromwell, CT
4.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Mirrors

Website: http://middlesexglassct.com/
Address: 211 Shunpike Rd # 3, Cromwell, CT 06416
Phone: (860) 632-5788

Nu-Face Home Improvements

Berlin, CT
4.9
★★★★★
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Glass Doors
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation

Website: https://nufacect.com/
Address: 855 Berlin Turnpike, Berlin, CT 06037
Phone: (860) 681-3002

Couto Construction

Warwick, RI
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Window Repair
  • Service icon Energy-Efficient Options

Website: https://www.coutoconstruction.com/
Address: 895 Post Rd, Warwick, RI 02888
Phone: (401) 307-5699

Bencar Building Systems LLC

Wallingford, CT
4.9
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.bencarbuildingsystems.com/
Address: 210 N Plains Industrial Rd, Wallingford, CT 06492
Phone: (203) 269-9204

Big Dawg Home Improvements

South Windsor, CT
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Skylights
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Window Repair

Website: http://bigdawghomeimprovements.com/
Address: 658 Foster St, South Windsor, CT 06074
Phone: (860) 477-6673

Piela Enterprise LLC

East Hampton, CT
3.3
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation

Website: https://www.pielallc.com/
Address: 30 Edgerton St, East Hampton, CT 06424
Phone: (860) 995-8596
Groton Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Groton, CT using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

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 Groton Saves You Money

Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on energy bills. Here's more information on how switching out your windows could help you:

  • Protect your investment: When you have an older home, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its value.
  • Save money on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of residential energy use. Switching to energy-efficient models can help decrease how much energy is used in your home, therefore saving you about 12% more 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 fade less due to their ability to filter out damaging UV rays.
  • Reduce your carbon footprint: By using less energy after you switch to Energy Star certified windows, you’ll also be lowering your indirect greenhouse gas emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Groton

Windows come in various shapes and sizes, so costs and services will vary tremendously. Here are the average costs and the primary services that you can find from the average window installation company.

How Much Do New Windows Cost?

On average, homeowners in Groton can expect that most replacement window installations will range from $250 to $1,200, with the average cost at around $600. This is because the cost of window installations are based on several factors specific to your home, like the size, material and number of windows you need to replace, as well as where your property is located.

With windows, efficiency is one of the most important factors for most homeowners. Windows with higher efficiency may cost more off the bat, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Groton homeowners $424+ per year after replacing single-pane windows.

Another factor that influences the total cost is the material you choose for your frame. Aluminum frames are typically the least pricey and are sturdy and light, but they offer poor insulation. On the other hand, wood frames are the most expensive, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

There are typically two kinds of window installation services: full-frame and pocket installations.

Full-frame installations require replacing the full window — the sill, frame, trim and all. These are typically done when you want to change the style of your window or when it has a great amount of deterioration. Full-frame installations are more comprehensive and will increase overall costs. A pocket installation involves installing a new window within the frame that’s already there. So, instead of removing the whole window and rebuilding it, the installer will just put the replacement window (also called a retrofit or insert window) into the frame.

Your window installation company will be able to advise you on the best type for your project. In Groton, the choice will mostly be influenced by the efficiency of your home and the age and condition of your existing frames.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Groton

EcoWatch reviews differ from other reviews because we examine these companies through a sustainability lens. We’ve decided to review the best window installation companies in Groton 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 reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

Because this is a guide for Groton, we gave more points to companies that serve the city. There are certainly other reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Groton.

Work Quality

We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer included in our guide to make sure its technicians are well-qualified and that the company has gotten lots of positive customer feedback to vouch for its service.

Customer Reviews

We analyzed trends in recent online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across nearly every category, including quality of parts, warranty, professionalism, quality of installation, cost and more.

Cost

This one is a give-and-take: as with most services, cheap window installers may not provide the highest quality service. Still, we want to make sure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed, windows are a substantial investment, so you’ll want to be certain that investment is protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have a good track record in the industry. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.

Groton, CT Window Replacement FAQs

How much does a window install cost?

The average cost to install one window ranges between $450 and $650. There are many factors that influence how much it costs, such as the materials used in designing the windows, your property’s location, the number of windows, local labor costs, how energy-efficient the windows are and styles and sizes of windows.

Which type of window should I get?

A window’s energy efficiency is affected by a variety of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are often the most energy-efficient since they are certified by the U.S. Department of Energy.

What do window installers do?

Window installers cover the entire process — from replacing old windows with new ones to cleaning up after the installation. In addition, some companies offer window manufacturing, customization and repairs.

How often should you replace your windows?

Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Apart from that, if your windows have damage anywhere on them, or they have become difficult to open or close, they may be in need of replacement.