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Best Window Replacement Companies in Groton, CT

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Written By Max Peterson|Last Updated: April 18, 2024

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
4.7
  • Full-service installation
  • Large window selection
  • Nearly 30 years of experience
Most Customizable
4.3
  • Full-service remodeling
  • 96% satisfaction rate
  • More than 30 years of experience
Best Window Selection
4.3
  • Free Quotes
  • 2022 J.D. Power award winner
  • Materials sourced within the U.S.

Top 10 Groton Window Installation Companies

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
Window World of Hartford Logo

Window World of Hartford

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4.5/5
Based on 239 customer reviews.

Services Offered

Energy-Efficient OptionsCustom Window DesignsBay WindowsWindow Replacement/installationVinyl FramesGlass DoorsDouble-Hung

Highlights

  • Good customer service
  • Price transparency
  • Free assessment
409 New State Rd, Manchester, CT 860-643-4568 windowworldct.com
Calvary Remodeling Logo

Calvary Remodeling

4.7/5
Based on 32 customer reviews.

Services Offered

Window Replacement/installation

Highlights

  • Free assessment
  • Price transparency
  • Good customer service
34 Greenmanville Ave, Mystic, CT 203-666-9326 calvaryremodeling.com
Riverhead Building Supply Store Logo

Riverhead Building Supply Store

4.4/5
Based on 34 customer reviews.

Services Offered

Window Replacement/installationGlass DoorsDouble-Hung

Highlights

  • Free assessment
  • Educational website
  • Good customer service
74500 Main Rd, Greenport, NY 631-477-1906 rbscorp.com
Clinton Glass Logo

Clinton Glass

4.5/5
Based on 40 customer reviews.

Services Offered

Energy-Efficient OptionsCustom GlassGlass DoorsWindow Replacement/installationGlass RepairMetal FramesMirrorsGlass Showers

Highlights

  • Price transparency
  • Good customer service
  • Free assessment
221 E Main St, Clinton, CT 860-664-3711 clintonglassct.com
Neil Jones Home Improvements Logo

Neil Jones Home Improvements

4.7/5
Based on 20 customer reviews.

Services Offered

Window Replacement/installation

Highlights

  • Educational website
  • Free assessment
  • Price transparency
130 Oak Terrace, Durham, CT 860-349-8771 neiljoneshomeimprovements.com
Kent County Glass Logo

Kent County Glass

4.5/5
Based on 37 customer reviews.

Services Offered

Screen RepairGlass ShowersWindow RepairVinyl FramesWindow Replacement/installationMirrorsEnergy-Efficient OptionsStorm/impact Windows

Highlights

  • Free assessment
  • Educational website
  • Good customer service
787 Washington St, Coventry, RI 401-821-7889 kentcountyglassinc.com
Pane in the Glass llc. Logo

Pane in the Glass

4.5/5
Based on 24 customer reviews.

Services Offered

Window Replacement/installation

Highlights

  • Free assessment
  • Educational website
  • Good customer service
Myglasspane@gmail.com, 12 Tuccitto Rd, Portland, CT 860-342-3253 pane-in-the-glass-llc.business.site
Advanced Window Systems LLC Logo

Advanced Window Systems

5/5
Based on 581 customer reviews.

Services Offered

Glass DoorsBay WindowsWindow Replacement/installationGlass ShowersDouble-Hung

Highlights

  • Educational website
  • Price transparency
  • Good customer service
14 Alcap Ridge, Cromwell, CT 860-718-4586 advancedwindowsystems.com
Window Nation Logo

Window Nation

5/5
Based on 564 customer reviews.

Services Offered

Bay WindowsGlass DoorsEnergy-Efficient OptionsDouble-HungCustom Window DesignsWindow Replacement/installation

Highlights

  • Price transparency
  • Free assessment
  • Educational website
1070 N Farms Rd Unit 1, Wallingford, CT 475-253-0015 windownation.com

More Local Window Companies

Turner Home Improvement Contractors, LLC

User Reviews: 4.6/5 

182 Oakwood Dr
Glastonbury, CT 06033

Riverhead Building Supply

User Reviews: 4.4/5 

40 Powell Ave
Southampton, NY 11968

NEWPRO

User Reviews: 5/5 

75 Brainard Rd Building A, Unit 2
Hartford, CT 06114

Middlesex Glass & Greenhouse

User Reviews: 4.4/5 

211 Shunpike Rd # 3
Cromwell, CT 06416

Mainville Windows & Doors

User Reviews: 4.7/5 

187 Foxboro Dr
Newington, CT 06111

Nu-Face Home Improvements

User Reviews: 4.6/5 

855 Berlin Turnpike
Berlin, CT 06037

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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Facts about Groton
Annual Energy Efficient Windows Savings:$424
Average Max Temp:57°F
Average Min Temp:44°F
Average Daily Sunlight:54%
Average Annual Snowfall:31.2"
Average Monthly Precipitation:4.11"

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This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

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$235-$1447
Awning$341-$950
Bay$786-$5833
Custom$350-$972
Casement$272-$1577
Double-hung$127-$821
Egress$233-$582
Glass Block$46-$590
Picture$204-$1512
Single-hung$92-$1555
Skylight$116-$1404
Sliding$267-$1361
Storm$55-$384
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-$1555
Composite$561-$1261
Fiberglass$92-$786
Vinyl$189-$1750
Wood$280-$1577

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 factor in the cost of installation, warranties, and any other supplemental fees that your project may require.

Experience and Training

Peruse a company's website and talk to a representative to learn more about its product and service offerings, pricing, and guarantees. Many window companies also keep online portfolios that exhibit past projects.

Ensure that the company focuses on window replacement. The more specialized training its staff has, and the longer it has been in business, the more likely it will deliver high-quality workmanship.

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 restrictions on what jobs they can perform. Most residential window installers are categorized as "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

The style of window you prefer should play a role in your company choice. Not every installation crew will necessarily be familiar with the window styles you want. A company website will tell more about the kinds of windows it deals with, such as:

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

Customer Feedback

One of the simplest ways to vet a company is to read what other customers have written about their experiences. You can find customer reviews on websites like Yelp, Google, Trustpilot, and the BBB. Talk to people you know who have used the professional you're thinking of hiring, and ask a representative for professional references.


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Frequently Asked Questions About Window Replacement in Groton

How much energy and money will I save by upgrading my windows?

Groton homeowners could potentially save $420 each year by upgrading to efficient windows. They'll also lower their property's carbon dioxide emissions by 150 pounds per year.

According to the federal Department of Energy, as much as 33% of a house's HVAC usage is to compensate for the heat or cold entering through windows. Energy-efficient windows help keep heat out in the summertime and in during the wintertime, both protecting your comfort and saving you money.

What is the maintenance schedule for an average window, and how long will it last?

Refer to your product warranty to determine how long your windows are meant to last. Most residential windows have life spans of 15–20 years. Check your windows for damage, leaking, and poor performance to determine whether you need a replacement.

How important are guarantees and extended support packages?

Window companies often give warranties for their services. Each typically covers problems with workmanship and materials for a specified period of time. It's essential to confirm the conditions of the guarantee with a window company before working with it.

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

More Window Resources

National Windows Company Ranking Methodology

Sources

Energy Star