29 Best Window Replacement Companies in Groton, CT (Feb 2023)
Window Companies Near Me

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

We analyzed all the top window installers in Groton and selected the top 29 based on:

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

By EcoWatch Local Advisors

Updated January 12, 2023

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.

A review of the top window installation companies in Groton may not seem like the most riveting article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. The Department of Energy estimates that heat gained or lost through old or damaged windows could account for around 30% of heating and cooling costs. In Groton, where the energy bills are an average of $36 per month, that's almost $$130 per year wasted.

Installing energy-efficient windows on your property can help you save money every month on your energy bills — and you can help the environment, too.

Because windows have such a big impact on your home, picking the best company for you is a big choice to make. That's why the EcoWatch team has made this list of the top window installation companies, so you can make an informed decision more easily.

Best Affordability

Window World

★★★★★
4.5

  • Great industry reputation
  • Low prices relative to competitors
  • Large serice area
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Award-winning company
  • More expensive than competition

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Custom Designs
  • Many years of experience
  • Low number of customer complaints
  • Not ideal for residential installations

Best Window Replacement Companies in Groton

The EcoWatch team assessed several installers in Groton to find the best ones for our readers. We assessed the installers on energy-efficient offerings, customer service, local experience, price, coverage area 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 Great industry reputation
  • Pros icon Low prices relative to competitors
  • Pros icon Large serice area
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 company has 27 years of experience in the windows industry, and it has proved to be one of the most reputable companies in Groton. The company has plenty of glowing reviews from customers online.

It has established itself as a company 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 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 offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Window World cost in Groton?

Window World does not outline prices on its website, but it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to get more accurate information.

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 Member of US Green Building Council
  • Pros icon Award-winning company
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been in business since 1995 and currently serves nearly every state except Mississippi and West Virginia. The provider has hundreds of positive reviews from customers online.

It 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 Windows

Renewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality Energy Star windows when inquiring. 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 Groton?

Andersen doesn't have any pricing information displayed 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. If you'd like to know for sure, you can request a quote on the company's website.

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 Custom Designs
  • Pros icon Many years of experience
  • Pros icon Low number of customer complaints
Cons:
  • Pros icon Not ideal for residential installations

Aeroseal Windows has 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 company has been operating since 1999 and currently services 13 states and Washington D.C. The company has a lot of positive reviews from customers online.

You may want to consider choosing Aeroseal if you're looking for a installer that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

There 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 Groton?

Prices are not available on Aeroseal's website, as the cost of window installment differs based on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. The best way to know for sure is to request 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 offers the best residential windows in Groton. This window installation company has been operating since 2006 and currently provides services to residents within 75 miles of its showrooms, which are in 13 states.

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 right company for you.

Energy Efficiency of Window Nation Windows

Window Nation offers 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 Groton?

Window Nation doesn't have any prices displayed 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. Receiving a free quote on its website is the best way to get more accurate pricing information.

We've recommended companies with shining reputations, but bear in mind that some national companies have independently owned locations in Groton, so your service may depend on your local crew. We have tried to remain unbiased and transparent by including pros and cons for each company reviewed.

More Window Replacement Companies in Groton

North Shore Window Inc.

Bridgehampton, NY
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Consistent Workmanship
  • Pros icon Excellent Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung

Website: http://northshorewindowinc.com/
Address: 48 Foster Ave #2, Bridgehampton, NY 11932
Phone: (631) 537-6400

United Glass & Mirror Co

Bozrah, CT
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website
  • Pros icon Award-Winning

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Heavy Glass
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.neglassmirror.com/residential-2/
Address: 15 Stockhouse Rd, Bozrah, CT 06334
Phone: (860) 886-0539

Mr. Handyman of Norwich, New London and Glastonbury

Norwich, CT
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.mrhandyman.com/norwich-newlondon-ct/
Address: 66 Franklin St Suite 11, Norwich, CT 06360
Phone: (860) 300-3486

Clinton Glass

Clinton, CT
3.7
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Award-Winning
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

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

Thomas Garbati Builders, LLC

Waterford, CT
3.7
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service
  • Pros icon Award-Winning
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Double-Hung

Website: http://garbatibuilders.com/
Address: 179 Butlertown Rd, Waterford, CT 06385
Phone: (860) 443-1232

Ring's End

Madison, CT
3.6
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Aluminum Window Frames
  • Service icon Architectural Glass
  • Service icon Fast Delivery

Website: https://www.google.com/aclk
Address: Madison, CT
Phone: (203) 245-0414

Henderson Roofing

Westerly, RI
3.6
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows

Website: https://johnhendersonconstruction.com/
Address: 35 Crestview Dr, Westerly, RI 02891
Phone: (401) 208-0316

Window Wizards

Pawcatuck, CT
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.windowwizardsllc.com/
Address: Pawcatuck, CT
Phone: (860) 501-4711

The Siding Store, Inc

Plainfield, CT
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Consistent Workmanship
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass

Website: http://www.thesidingstoreinc.com/
Address: 408 Norwich Rd, Plainfield, CT 06374
Phone: (860) 564-7088

Handyman Services of CT LLC

Niantic, CT
3.4
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon Reliable Service
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass

Website: http://www.handymanservicesofct.com/
Address: 361 Main St #1a, Niantic, CT 06357
Phone: (860) 434-1004

Glass America

7+ years in business · Westerly, RI
3.4
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Helps Educate Customers
  • Pros icon Arrives on Time
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Business Windows

Website: https://www.glassusa.com/
Address: 7+ years in business · Westerly, RI
Phone: (401) 622-1182

Christopher Home Improvement

Norwich, CT
3.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: https://christopherimprovement.com/
Address: 16 A Winchester St, Norwich, CT 06360
Phone: (860) 381-9336

Wallace Design Center

Southold, NY
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.wallacedesigncenter.com/
Address: 44500 County Rd 48, Southold, NY 11971
Phone: (631) 765-3890

The Roofing Store LLC

Plainfield, CT
3.2
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon Award-Winning

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows

Website: http://roofingstorellc.com/
Address: 496 Norwich Rd, Plainfield, CT 06374
Phone: (860) 564-8300

Expressway Roof Leaks and Siding Repair

East Hampton, NY
3.2
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Full-Service Installations
  • Service icon Business Windows

Website: http://www.expresswayroofingandchimney.com/
Address: 21 Kent Pl, East Hampton, NY 11937
Phone: (631) 772-7595

Harbor Interiors Inc

Southampton, NY
3.2
★★★★★
  • Pros icon Gives to charity
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://www.hamptonblinds.com/
Address: 177 Fish Cove Rd, Southampton, NY 11968
Phone: (631) 283-8725

J&J Rivera Home Improvement and Supply CO

Old Saybrook, CT
3.0
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Timely Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows

Website: http://jjriverahomeimprovementandsupplyco.com/
Address: 1790 Boston Post Rd, Old Saybrook, CT 06475
Phone: (860) 304-0851

Danielson Glass & Mirror

Brooklyn, CT
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: https://www.danielsonglass.com/
Address: 379 Providence Rd, Brooklyn, CT 06234
Phone: (860) 774-2136

Pane In The Glass

Westerly, RI
3.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: http://www.paneintheglasswc.com/
Address: 58 Fountain Dr, Westerly, RI 02891
Phone: (401) 477-2177

Murphy's Building & Remodeling

Hebron, CT
3.0
★★★★★
  • Pros icon Charitable Giving
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows

Website: http://www.murphybr.com/
Address: 384 Gilead St, Hebron, CT 06248
Phone: (860) 214-4072

ICOR Building & Remodeling

Mystic, CT
2.9
★★★★★
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers
  • Pros icon Timely Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows

Website: http://icorgc.com/
Address: 96 Rhonda Dr, Mystic, CT 06355
Phone: (860) 464-4581

Robert E Otto Glass Inc.

Wainscott, NY
2.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Architectural Glass
  • Service icon Sliding Glass

Website: http://www.robertottoglass.com/
Address: 350 Montauk Hwy, Wainscott, NY 11975
Phone: (631) 537-1515

Kent County Glass

Coventry, RI
2.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows

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

Columbia Glass Inc

Columbia, CT
2.8
★★★★★
  • Pros icon Reliable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Tempered Glass
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.columbiaglassct.com/
Address: 127 CT-66, Columbia, CT 06237
Phone: (860) 228-8485

Creative Enclosures

Bozrah, CT
2.8
★★★★★
  • Pros icon Supports Charities
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Double-Hung

Website: https://www.creativeenclosures.com/
Address: 56 Stockhouse Rd, Bozrah, CT 06334
Phone: (860) 200-2595

Glass America

Willimantic, CT
2.8
★★★★★
  • Pros icon Educational Website
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Award-Winning

Services Offered

  • Service icon Custom Windows
  • Service icon Business Windows

Website: https://glassusa.com/
Address: 1605 W Main St, Willimantic, CT 06226
Phone: (860) 456-9051

HAMPTONS CEDAR DESIGN.COM

East Hampton, NY
2.7
★★★★★
  • Pros icon Free Quotes
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows

Website: http://hamptonscedardesign.com/
Address: 81 Newtown Ln #346, East Hampton, NY 11937
Phone: (631) 637-2828

Pane in the Glass llc.

Portland, CT
2.7
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs
  • Service icon Tempered Glass
  • Service icon Double-Hung

Website: https://pane-in-the-glass-llc.business.site/
Address: 12 Tuccitto Road myglasspane@gmail.com, Portland, CT 06480
Phone: (860) 342-3253

Coventry Glass Co

Coventry, RI
2.6
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Reliable Appointment Windows
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs

Website: https://www.coventryglassco.com/
Address: 594 Tiogue Ave, Coventry, RI 02816
Phone: (401) 828-8666

How Installing Energy-Efficient Windows in Groton Saves You Money

By switching to energy-efficient windows, you and your family can enjoy several benefits, including:

  • Decrease your carbon footprint: In Groton, you can reduce your indirect greenhouse gas emissions by about 147 pounds per year when you install energy-efficient windows.
  • Protect your investment: Upgrading your windows is an important part of maintaining your property and its value, particularly if your home is on the older side.
  • Save on power bills: Once you install energy-efficient windows, you can expect a reduction in your bills by about 12% since you'll require less energy to heat or cool your home.
  • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.

Estimated Cost of Window Replacement in Groton

Windows come in various purposes, styles and shapes, so costs and services will vary tremendously depending on your project. Below, we go over the average cost and services that you'll find from window installation companies.

How Much Do New Windows Cost?

The typical cost to install a single window is about $600 but can range from $200 to $1,200. This is because of the fact that the cost of window installations are based on a variety of factors specific to your home, such as the size, material and number of windows you need to replace, as well as where your property is located.

It's also worth keeping in mind that energy-efficient windows will usually cost more upfront, but Energy Star estimates that upgrading the windows on your Groton home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. How much you'll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

We advise getting free quotes from multiple window installers to find the right windows and the company that works best for you.

What Services do Window Installers Offer?

The first step of an installation is to decide whether you should get a full-frame or pocket installation.

Full-frame installations are usually recommended when you want a new style or your window has a lot of rot. With this service, your professionals will replace the complete window, including the frame, sill and trim. A pocket installation entails installing a new window without replacing the frame. So, instead of removing the whole window and rebuilding it, the contractor will just slide the replacement window (also called a retrofit or insert window) into the frame.

Your window installer can help you figure out which type of installation you should get.

Best Affordability

Window World

★★★★★
4.5

  • Great industry reputation
  • Low prices relative to competitors
  • Large serice area
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Member of US Green Building Council
  • Award-winning company
  • More expensive than competition

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Custom Designs
  • Many years of experience
  • Low number of customer complaints
  • Not ideal for residential installations

How We Choose the Best Window Installers in Groton

EcoWatch reviews are different from most reviews since we evaluate these companies through a sustainability lens. Along with energy efficiency, we reviewed each installer and ranked them based on the following methodology:

Service Area

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

Work Quality

When choosing new windows, the quality and variety of services often plays just as important of a role in overall efficiency and performance as the type of window you opt for. We do give window installers more points if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

Another self-explanatory yet very important review factor is customer feedback. If the majority of customers don't have positive feedback about their service from a certain installer, it won't be featured on EcoWatch.

Cost

This one is a give-and-take: as with other services, cheap window installation companies won't always provide the most 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

As discussed previously, windows are a considerable investment, so you'll want to make sure that investment is protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have been in the industry for quite some time. Window installation companies that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Groton, CT Window Replacement FAQs

How much should a window install cost?

The typical cost to install a single window can range between $450 and $650. There are many factors that influence the cost, such as styles and sizes of windows, the materials used in designing the windows, local labor costs, how energy-efficient the windows are, your property's location and the number of windows.

What kind of window is the best for energy efficiency?

Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are more efficient than windows that do. To be sure you'll get the most energy-efficient windows, look for models with the blue Energy Star certification — this means they're certified energy-efficient by the U.S. Department of Energy.

When should I use a window installation company?

Unless you have experience with home improvement projects and have the time needed to replace your own windows, we recommend hiring a professional. 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 much safer alternative.

How often should you replace windows?

Windows generally have a lifespan of about 20 to 30 years, but anytime you see damage on your windows, it's a good time to have them checked by an expert to determine if they are in need of a repair or replacement.

Should I replace all my windows at the same time?

If you want to get more efficient windows and save money on energy costs, replacing all your windows at the same time is the only way to see a noticeable difference. However, if you have just one or two windows that are broken or leaky, you can replace just those.

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