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 April 21, 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 During the winter months, the last thing you want is your heat to leak out of your outdated windows.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
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
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 Window Installation & Replacement Companies in Groton

The EcoWatch Reviews team assessed dozens of installers across the country to find the top window installation companies for our readers. The installers mentioned in this article scored the best in our review categories, such as energy-efficient offerings, availability, customer service, local expertise, 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. This provider has 27 years of experience in the window installation business, and it has proved to be one of the most reputable companies in the business.

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

Window World 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 be sure to ask your Window World representative when inquiring about services.

How much does Window World cost in Groton?

Window World does not display prices on its website, but it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can request a 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. This provider has 27 years of experience in the window installation business, and it has proved to be one of the most reputable companies in the business.

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

Renewal by Andersen 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 be sure to ask your Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Groton?

Andersen does not display prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on pricing, you can request a 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. This provider has 23 years of experience in the window installation business, and it has proved to be one of the most reputable companies in the business.

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

Aeroseal 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 be sure to ask your Aeroseal representative when inquiring about services.

How much does Aeroseal Windows cost in Groton?

Aeroseal does not display prices on its website, but it provides high-quality windows at a competitive price point. For more accurate information on pricing, you can request a 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. This provider has 16 years of experience in the window installation business, and it has proved to be one of the most reputable companies in the business.

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

Window Nation 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 be sure to ask your Window Nation representative when inquiring about services.

How much does Window Nation cost in Groton?

Window Nation does not display prices on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. For more accurate information on pricing, you can request a quote from the company.

We have tried to remain unbiased and transparent by including pros and cons for every installer. Additionally, any partnerships do not influence our rankings.

More Window Companies in Groton

Renewal by Andersen Window Replacement

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

Services Offered

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

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

Window World of Hartford

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

Services Offered

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

Website: https://www.windowworldct.com/
Address: 409 New State Rd, Manchester, CT 06042
Phone: (860) 643-4568

Window Nation

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

Services Offered

  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • 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
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

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
2.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

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

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 Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • 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
2.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

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

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 Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

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 Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

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

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

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 Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

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 Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service

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

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

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

Riverhead Building Supply

Southampton, NY
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

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

Middlesex Glass & Greenhouse

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

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 Good Customer Service
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

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

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

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 Timely Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Skylights
  • 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

Couto Construction

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

Services Offered

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

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

NEWPRO

Hartford, CT
4.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

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

Website: https://www.newpro.com/
Address: 75 Brainard Rd Building A, Unit 2, Hartford, CT 06114
Phone: (860) 222-7397
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 power bills. Here's more information on how switching out your windows could benefit you:

  • Protect your investment: When you have an older home, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
  • Save on power 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 you have to pay, therefore saving you about 12% more on your bills.
  • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
  • Reduce your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by about 147 pounds.

Estimated Cost of Window Replacement in Groton

Windows come in varying shapes and sizes, so costs and services will vary remarkably. Here are the typical costs and services that you’ll find from window installers.

How Much Do New Windows Cost?

The typical cost to replace one window is about $600 but can range anywhere from $200 to $1,200. But prices vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations, which carry a higher price tag.

Keep in mind that energy-efficient windows may have a higher price, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you replace double-pane, clear glass windows. Your savings will vary depending on your local climate, energy rates and individual home characteristics.

Something else that influences the overall cost is the material of the frame you select. Aluminum frames are generally the least pricey and are sturdy and light, but they provide poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

Generally, there are two kinds of window installation services you can get: full-frame and pocket installations.

Full-frame installations entail replacing the full window, including the sill, frame and trim. Full-frame installations are necessary when you want to change the style of your windows or your window has noticeable rot or deterioration. Because these installations are more involved, they will raise the total cost. 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 should opt for a full-frame installation instead.

Your window installer should be able to help you choose which type of installation you should get.

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great industry reputation
  • Member of US Green Building Council
  • Manufactures products in-house
Buy One Window, Get One 40% OFF
Get Estimate

Best Energy-Efficient Features

Champion

★★★★★
4.5
  • Many years of experience
  • Low prices relative to competitors
  • Limetime warranty
Buy 2 Windows, Get 2 Free
Get Estimate

Power Home

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

How We Choose the Best Window Installers in Groton

EcoWatch differs from most reviewers since we’re examining these companies through a sustainability lens. We have evaluated the best window replacement companies in Groton mostly based on energy efficiency, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows have been shown to reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve a wide variety of states and cities so you can find a quality window installation company near you.

Work Quality

We’re willing to bet that you’re looking for professionals who do a great job installing windows. We’ve vetted each installer in our guide to ensure its technicians are well-qualified and that the company has received plenty 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 consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including quality of installation, warranty, cost, quality of parts, professionalism and more.

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing providers’ prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

As discussed, windows are a considerable investment, so you’ll want to be certain that investment is well protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Because of Groton’s climate, homeowners need to be wary of rot, low efficiency and water damage. We factored in local experience to reflect the ability of Groton window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

Groton, CT Window Replacement FAQs

How much does window installation cost?

The national average cost to install one window is about $600 but can range between $200 and $1,200, depending on a variety of factors. The price is usually dependent on the type and material of the window, the size of the window and the location of your property. 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 should I get?

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

What services do window replacement companies provide?

Window installation professionals go to your house to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others install their own windows. The installer will also clean up after the installation.

How often should you 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 need to be replaced.

Should I replace all my windows at the same time?

If you’re upgrading your windows to save on your energy bills, replacing all of the windows at once is the only way to gain that benefit. However, if you have just one or two windows that are damaged or leaky, you can replace just those.