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  • Written by
    Max Peterson
  • Fact Checked
  • Updated

You might be installing new windows to upgrade your home's exterior facade, boost your energy efficiency, or protect your home from inclement weather. If your windows are deteriorating or showing signs of damage, it's likely time to replace them. Working with a licensed window contractor will help you get the best results and help you avoid costly mistakes from trying to complete the job yourself the job yourself.

Top Pick
Renewal by Andersen logo
4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience

Buy One Window, Get One 40% OFF

Most Customizable
Power Home logo
4.3/5

Ratings are based on our detailed proprietary methodology and review standards.

  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience

Next-Day Appointments Available

Best Financing
DaBella logo
4/5

Ratings are based on our detailed proprietary methodology and review standards.

  • Knowledgeable sales representatives
  • American-made products
  • Great financing options

10 Best Window Replacement Companies in Groton

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

We've gathered this list of contractors that specialize in window replacement in Groton.

The This Old House Reviews Team evaluated scores of window installers in and around Groton. We took into account the following criteria to select the best window replacement companies:

  • Product quality
  • Energy-efficiency guarantees
  • Services and warranties
  • Professional experience and licensure
  • Customer reviews and recommendations

Featured Partner
Renewal by Andersen Window Replacement Logo
Top Rated

Renewal by Andersen Window Replacement

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 2568 reviews


54 Tuttle Pl #1, Middletown, CT 06457

(866) 337-4191

www.renewalbyandersenct.com
Featured Partner
Power Home Remodeling Logo
Top Rated

Power Home Remodeling

4.9/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 2558 reviews


60 Commerce Dr Suite 150, Trumbull, CT 06611

(203) 659-4843

powerhrg.com

Calvary Remodeling

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 32 reviews


34 Greenmanville Ave, Mystic, CT 06355

(203) 666-9326

www.calvaryremodeling.com
Riverhead Building Supply Store Logo

Riverhead Building Supply Store

4.4/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 34 reviews


74500 Main Rd, Greenport, NY 11944

(631) 477-1906

rbscorp.com/locations/greenport-new-y...
Clinton Glass Logo

Clinton Glass

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 40 reviews


221 E Main St, Clinton, CT 06413

(860) 664-3711

www.clintonglassct.com
Neil Jones Home Improvements Logo

Neil Jones Home Improvements

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 20 reviews


130 Oak Terrace, Durham, CT 06422

(860) 349-8771

www.neiljoneshomeimprovements.com
Kent County Glass Logo

Kent County Glass

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 37 reviews


787 Washington St, Coventry, RI 02816

(401) 821-7889

www.kentcountyglassinc.com

Pane in the Glass llc.

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 24 reviews


myglasspane@gmail.com, 12 Tuccitto Rd, Portland, CT 06480

(860) 342-3253

pane-in-the-glass-llc.business.site
Advanced Window Systems LLC Logo

Advanced Window Systems LLC

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 581 reviews


14 Alcap Ridge, Cromwell, CT 06416

(860) 718-4586

www.advancedwindowsystems.com
Window Nation Logo

Window Nation

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 564 reviews


1070 N Farms Rd Unit 1, Wallingford, CT 06492

(475) 253-0015

www.windownation.com/hartford-ct-show...

Facts about Groton

  • Annual Energy Efficient Windows Savings:
    $424
  • Average Max Temperature:
    57°F
  • Average Min Temperature:
    44°F
  • Average Daily Sunlight:
    54%
  • Average Annual Snowfall:
    31.2”
  • Average Monthly Precipitation:
    4.11”

How To Choose a Window Company in Groton

Trustworthiness is important when it comes to choosing a window installer. However, your chosen company should also suit your priorities and understand your vision. Consider the following factors during your company search:

Window Cost by Type

Replacing your windows is a major purchase, so balancing cost with quality is crucial. Although premium replacement windows may cost more upfront, they often yield better long-term value due to their longer lifespan. The final cost of your window replacement will rely on the particular sizes, materials, and styles you need. Simple double-hung windows deliver great value with their straightforward style and simple mechanisms, while a custom-cut arch window in a master suite will cost more. A professional can guide you through selecting the solutions that fit your requirements.

To help you form a rough estimate, this table shows the typical cost of the most common residential window types.

Window TypesAverage Cost
Arched$236-$1,448
Awning$341-$951
Bay$787-$5,835
Custom$350-$972
Casement$272-$1,578
Double-hung$127-$821
Egress$233-$583
Glass Block$47-$590
Picture$205-$1,513
Single-hung$92-$1,556
Skylight$117-$1,405
Sliding$268-$1,361
Storm$55-$385
Transom$285-$596

Window Material Cost

Materials also help determine a window's cost. You might choose a material based on the local climate, your energy efficiency goals, and your desired look. For example, wood windows can give your home an organic design without breaking the bank, but you'll have to invest more toward maintenance. Aluminum and composite windows cost more up-front, but they're incredibly durable against the elements, so you'll spend far less on maintenance.

Window TypesAverage Cost
Aluminum$55-$1,556
Composite$562-$1,262
Fiberglass$92-$787
Vinyl$189-$1,750
Wood$281-$1,578

Other Window Replacement Costs

Your contractor will factor the price for your windows and the value of their services into its total estimate. Make sure to assess the cost of labor, guarantees, and any other supplemental fees that your project may require.

Experience and Training

The longer a window installer has served your area, the better its workmanship will likely be. Contact a company representative to learn more about its guarantees, experience, and public and private credentials. Company websites often have photo galleries demonstrating previous work technicians have done.

Licensing and Credentials

While Connecticut doesn't require contractors to carry licenses, they must still register with the state's Department of Consumer Protection (DCP), and there are still limitations on what jobs they can perform. Most residential window installers are considered "minor contractors" and can only work on single and multi-family houses. If a company performs glasswork, it must have a Glazier license from the DCP.

Types of Windows Offered

No two businesses offer the same window styles and materials. Find one that focuses on the type you want for your home.

Also, check the kind of window framing materials a company works with. Each material has different price points, life spans, and energy performance capabilities. Common materials include fiberglass, composite, wood, aluminum and vinyl.

Customer Feedback

Reading other customers' stories is one of the best ways to screen window companies in your area. You can find customer reviews on websites like Trustpilot, the BBB, Yelp, and Google. Ask people you know who have used the company you're evaluating, and ask a representative for professional references.

Frequently Asked Questions about Window Replacement in Groton

More Window Resources

National Windows Company Ranking Methodology

Sources

Energy Star

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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