We may be compensated if you purchase through links on our website. Our Reviews Team is committed to delivering honest, objective, and independent reviews on home products and services. More
New window replacement installed in a home

Best Window Replacement Companies in Glastonbury, CT

Get matched with a top local pro
Join the 6,755 people who have received a free, no-obligation quote in the last 30 days
  1. Home
  2. Local Pros
  3. Window Replacement
  4. CT
  5. Glastonbury
Written By Max Peterson|Last Updated: May 18, 2024

You might be installing new windows to upgrade your home's design, boost your energy efficiency, or protect your home from harsh weather conditions. If your windows are getting old or showing signs of damage, it's likely time to replace them. Working with a certified window contractor will help you get the most satisfactory results and help you avoid costly mistakes from trying to complete the job yourself the job yourself.

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

Top 10 Glastonbury Window Installation Companies

We've gathered this list of companies that specialize in window replacement in Glastonbury.

Glastonbury residents can trust the This Old House Reviews Team to provide relevant and up-to-date window replacement company recommendations in their area. To determine which installers are the best, we focus on these five criteria:

  • Energy-efficiency guarantees
  • Customer reviews and recommendations
  • Product quality
  • Services and warranties
  • Professional experience and licensure
Window World of Hartford Logo

Window World of Hartford

Based on 239 customer reviews.

Services Offered

Window Replacement/installationEnergy-Efficient OptionsCustom Window DesignsVinyl FramesDouble-HungBay WindowsGlass Doors


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


Based on 528 customer reviews.

Services Offered

Glass ShowersEnergy-Efficient OptionsBay WindowsDouble-HungWindow Replacement/installationGlass Doors


  • Price transparency
  • Good customer service
  • Educational website
75 Brainard Rd Building A, Unit 2, Hartford, CT 860-222-7397 newpro.com
Advanced Window Systems LLC Logo

Advanced Window Systems

Based on 581 customer reviews.

Services Offered

Window Replacement/installationGlass DoorsGlass ShowersBay WindowsDouble-Hung


  • Free assessment
  • Good customer service
  • Price transparency
14 Alcap Ridge, Cromwell, CT 860-718-4586 advancedwindowsystems.com
Mainville Windows & Doors Logo

Mainville Windows & Doors

Based on 18 customer reviews.

Services Offered

Glass DoorsMetal FramesWindow Replacement/installationFiberglass FramesBay WindowsVinyl Frames


  • Price transparency
  • Free assessment
187 Foxboro Dr, Newington, CT 860-539-9988 mainvillewindows.com
Paramount Gallery Logo

Paramount Gallery

Based on 110 customer reviews.

Services Offered

Energy-Efficient OptionsWindow Replacement/installationGlass DoorsCustom Window Designs


  • Price transparency
  • Free assessment
  • Good customer service
121 Talcott Rd, West Hartford, CT 860-231-7884 paramountgallery.us
Big Dawg Home Improvements Logo

Big Dawg Home Improvements

Based on 44 customer reviews.

Services Offered

SkylightsWindow RepairEnergy-Efficient OptionsWindow Replacement/installation


  • Price transparency
  • Timely service
  • Good customer service
658 Foster St, South Windsor, CT 860-477-6673 bigdawghomeimprovements.com
Turner Home Improvement Contractors, LLC Logo

Turner Home Improvement Contractors

Based on 92 customer reviews.

Services Offered

Glass DoorsWindow Replacement/installation


  • Price transparency
  • Good customer service
  • Educational website
182 Oakwood Dr, Glastonbury, CT 860-633-1400 turnerhomeimprovement.com
Finestra Windows & Installation Logo

Finestra Windows & Installation

Based on 39 customer reviews.

Services Offered

Window Replacement/installationVinyl FramesGlass ShowersDouble-HungGlass DoorsTempered GlassCustom Window DesignsTriple Pane Glass


  • Free assessment
  • Educational website
  • Price transparency
485 New Park Ave, West Hartford, CT 860-986-7277 finestrawindows.com
Action Windows & Siding Logo

Action Windows & Siding

Based on 33 customer reviews.

Services Offered

Window Replacement/installationVinyl Frames


  • Good customer service
  • Price transparency
220 South St, West Hartford, CT 860-953-1936 ctwindows.com

More Local Window Companies

Pane in the Glass llc.

User Reviews: 4.5/5 

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

Peoples Windows and Baths

User Reviews: 4.4/5 

252 Hartford Ave
Newington, CT 06111

Middlesex Glass & Greenhouse

User Reviews: 4.4/5 

211 Shunpike Rd # 3
Cromwell, CT 06416

Nu-Face Home Improvements

User Reviews: 4.6/5 

855 Berlin Turnpike
Berlin, CT 06037

Castle Windows

User Reviews: 4.3/5 

105 Clark Dr # H
East Berlin, CT 06023

Highland Window Company, LLC

User Reviews: 4.5/5 

5 Linnard Rd
West Hartford, CT 06107

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

New window replacement installed in a home

Get Your Window Replacement Project Quote Today

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Facts about Glastonbury
Annual Energy Efficient Windows Savings:$446
Average Max Temp:57°F
Average Min Temp:43°F
Average Daily Sunlight:52%
Average Annual Snowfall:47.1"
Average Monthly Precipitation:4.12"

Expert Tips By

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 Glastonbury

It's crucial to find a window installer that aligns with your specific values, needs, and preferences. Consider the following traits during your search:

Window Cost by Type

Replacing your windows is a substantial investment, so balancing cost with value is important. Although premium windows may cost more upfront, they often provide better long-term value due to their increased lifespan. The age of your home, as well as the sizes, materials, and styles of replacement windows you choose, can influence pricing. Single-hung windows often cost less due to their straightforward style and simple mechanisms, while a custom-cut arch window in a master suite will cost more. It's recommended to speak with a trusted window installer to determine your most suitable options.

In this table, you can find cost data for the most common residential window types to determine how much you might pay.

Window TypesAverage Cost
Glass Block$47-$600

Window Material Cost

You'll also need to pick a window material. Homeowners usually base their decision on aesthetic preferences, the local climate and energy efficiency objectives. Aluminum windows are perfect for sleek, modern designs, but they cost more up-front. Wood windows cost less up-front, but you'll need to invest in regular maintenance to prevent the frame from wear and warping. Vinyl is readily available and tends to cost less, but don't underestimate its strong durability and low maintenance needs.

Window TypesAverage Cost

Other Window Replacement Costs

Ask each contractor you're evaluating about warranty fees, labor costs, and permit fees. This will help you get a better picture of the financial commitment involved in the project.

Experience and Training

Choose a provider that focuses on window repair and installation, and look for this information on its website:

  • How many years it's been operating
  • Photo galleries of projects its crews completed
  • Private credentials attesting to its workmanship
The more experience a company has, the better its service and 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 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

There are a variety of replacement window types you can choose from, and it's essential to find a company that has expertise with the ones you want. Browse a company's website and reviews for any of these types:

Finally, pay close attention to the materials that a window company uses. Each window frame material has a different life span, price point and energy efficiency level. A company will usually specify whether the windows they place use vinyl, wood, composite, fiberglass, or metal.

Customer Feedback

One of the simplest ways to evaluate a company is to see what other customers have said about their experiences. Trustworthy sources for customer reviews include Google, the BBB, and Yelp Referrals can also help you in your company search. Ask each company you're interested in for a list of references, and talk to family and friends about who they use for window installations.

Ready to Get a Quote on Your Window Project?

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Frequently Asked Questions About Window Replacement in Glastonbury

Why should I hire a professional to install or replace my windows?

Window replacement is an important purchase that greatly impacts your home's livability and energy efficiency. Hiring a skilled window installer to manage your project ensures your windows will fit correctly, operate effectively, and be properly insulated. Companies also typically include a guarantee that addresses required maintenance and most future repairs.

What should I do if a window is molding or has rot?

A molding or rotting window frame points to a moisture issue. You likely won't have to replace the entire window. Instead, a simple framing job could do. It's recommended to consult a window expert to ensure a proper seal.

Do window installers also work with blinds and coverings?

Whether a company can sell and install blinds ultimately depends on your state's licensing requirements and their own preferences. Many jurisdictions require window covering installers to get a separate license, and not every professional will carry one. If you'd like blinds with your new windows, inquire with a company representative if its crews can handle the measuring, cutting, and mounting. If a company can't install blinds, they could refer you to another company or subcontract the work.

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


Energy Star