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Best Window Replacement Companies in Waterbury, CT

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

Replacement windows can defend your home from leaks and drafts, boost its energy efficiency, and give it extra charm. If your windows are aging or showing signs of damage, it's likely time to install new ones. Working with a certified window company will help you get a top-quality outcome and help you avoid costly mistakes from attempting to handle 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 Waterbury Window Installation Companies

By choosing one of these best companies for window replacement in Waterbury, you'll reap the benefits of new windows in no time.

Waterbury 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
  • Services and warranties
  • Product quality
  • Professional experience and licensure
Window World of Hartford Logo

Window World of Hartford

Based on 239 customer reviews.

Services Offered

Glass DoorsBay WindowsDouble-HungEnergy-Efficient OptionsVinyl FramesWindow Replacement/installationCustom Window Designs


  • Timely service
  • Price transparency
  • Good customer service
409 New State Rd, Manchester, CT 860-643-4568 windowworldct.com
Town & Country Glass Shop llc | Custom Shower Door & Window Supplier Logo

Town & Country Glass Shop llc | Custom Shower Door & Window Supplier

Based on 22 customer reviews.

Services Offered

Window Replacement/installationGlass ShowersMirrors


  • Educational website
  • Good customer service
  • Free assessment
244 Main St N, Woodbury, CT 203-263-4527 townandcountryglassshop.com
J.C. Tonnotti Window Company Logo

J.C. Tonnotti Window Company

Based on 218 customer reviews.

Services Offered

Window Replacement/installationEnergy-Efficient OptionsGlass Doors


  • Timely service
  • Educational website
  • Good customer service
205 Bristol St, Southington, CT 860-621-1642 jctonnotti.com
Naugatuck Window & Glass Logo

Naugatuck Window & Glass

Based on 46 customer reviews.

Services Offered

SkylightsCustom GlassGlass ShowersGlass DoorsMirrorsEnergy-Efficient OptionsWindow Replacement/installation


  • Price transparency
  • Good customer service
  • Educational website
253 Prospect St, Naugatuck, CT 203-729-4536 naugatuckwindowandglass.com
Bartlett Contracting, LLC Logo

Bartlett Contracting

Based on 21 customer reviews.

Services Offered

Glass DoorsBay WindowsWindow Replacement/installation


  • Price transparency
  • Good customer service
  • Free assessment
1776 Meriden Rd, Wolcott, CT 203-558-1696 bartlettcontractingllc.com
Marino's Waterbury Glass Logo

Marino's Waterbury Glass

Based on 47 customer reviews.

Services Offered

MirrorsScreen RepairWindow Replacement/installationGlass Showers


    2538 E Main St, Waterbury, CT 203-573-0333 marinoswaterburyglass.com
    Bencar Building Systems LLC Logo

    Bencar Building Systems

    Based on 42 customer reviews.

    Services Offered

    Window Replacement/installation


    • Good customer service
    210 N Plains Industrial Rd, Wallingford, CT 203-269-9204 bencarbuildingsystems.com
    Window Nation Logo

    Window Nation

    Based on 564 customer reviews.

    Services Offered

    Double-HungCustom Window DesignsWindow Replacement/installationBay WindowsEnergy-Efficient OptionsGlass Doors


    • Price transparency
    • Free assessment
    • Good customer service
    1070 N Farms Rd Unit 1, Wallingford, CT 475-253-0015 windownation.com
    Gibson Cellar Door and Window Logo

    Gibson Cellar Door and Window

    Based on 27 customer reviews.

    Services Offered

    Window Replacement/installationVinyl Frames


    • Free assessment
    • Price transparency
    • Educational website
    1131 Chamberlain Hwy, Kensington, CT 860-628-4400 gibsoncellardoor.com

    More Local Window Companies

    Advanced Window Systems LLC

    User Reviews: 5/5 

    14 Alcap Ridge
    Cromwell, CT 06416

    Nu-Face Home Improvements

    User Reviews: 4.6/5 

    855 Berlin Turnpike
    Berlin, CT 06037

    Bert Falsetti's Home Improvement LLC

    User Reviews: 4.7/5 

    56 Woodfield Dr
    Shelton, CT 06484

    Mainville Windows & Doors

    User Reviews: 4.7/5 

    187 Foxboro Dr
    Newington, CT 06111

    Castle Windows

    User Reviews: 4.3/5 

    105 Clark Dr # H
    East Berlin, CT 06023

    Neil Jones Home Improvements

    User Reviews: 4.7/5 

    130 Oak Terrace
    Durham, CT 06422

    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 Waterbury
    Annual Energy Efficient Windows Savings:$420
    Average Max Temp:57°F
    Average Min Temp:44°F
    Average Daily Sunlight:54%
    Average Annual Snowfall:48.5"
    Average Monthly Precipitation:4.05"

    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 Waterbury

    Dependability is important when it comes to choosing a window replacement company. However, your chosen company should also suit your needs and respect your vision. Consider the following factors during your company search:

    Window Cost by Type

    When it comes to replacing your windows, cost-effectiveness is most important. Each window you replace should offer optimal durability at a fair price point. Although top-of-the-line replacement windows may come with a higher initial price tag, they often yield better long-term value due to their longer lifespan. The style, material, and size of your new windows are the most significant factors in your final cost. 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. An installer can guide you through selecting the solutions that fit your needs.

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

    Window TypesAverage Cost
    Glass Block$48-$613

    Window Material Cost

    Replacement window prices also vary based on material. Each option provides unique advantages depending on the local climate and energy-saving goals. Fiberglass and vinyl are readily-available materials, so they tend to cost less. Likewise, aluminum and composites look sleek and stay strong against the elements, so they tend to cost more.

    Window TypesAverage Cost

    Other Window Replacement Costs

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

    Experience and Training

    The longer a window company has been operating, the better its workmanship will likely be. Speak with a company representative to learn more about its guarantees, experience, and public and private credentials. Company websites often keep photo galleries showing off 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 dwellings. If a company performs glasswork, it must have a Glazier license from the DCP.

    Types of Windows Offered

    There are numerous replacement window types you can choose from, and it's crucial to find a company that is experienced with the ones you want. Look on a company's website and reviews for any of these types:

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

    Customer Feedback

    Perhaps the best way to prescreen window companies for your job is to read what previous customers have said about them. Trustworthy sources for customer reviews include Trustpilot, Yelp, and the BBB Speak with people you know who have used a company you're interested in, and ask a representative for a copy of its reference list.

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    Frequently Asked Questions About Window Replacement in Waterbury

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

    In Waterbury specifically, most homeowners using efficient windows lower their carbon emissions by 150 pounds each year. This means they save $420 on their annual electricity costs.

    The U.S. Department of Energy states that 25%–30% of a home's heating and cooling capacity is used to compensate for heat gain and heat loss through windows. By purchasing new, more efficient windows, you can boost your home's energy efficiency and reduce your electricity bills.

    How can I fix a rotting or molding window frame?

    A molding or rotting window frame is usually a moisture issue. You likely won't have to replace the entire window. Instead, a simple framing job could do. It's advisable to consult a window professional to ensure adequate sealing and weatherproofing.

    What's the typical timeline for a professional window replacement?

    The length of a window replacement project depends on several factors. It usually takes up to a month for the contractor to receive your windows from the manufacturer. The installation process itself often takes 40–60 minutes per window. Keep in mind, larger windows or more complex installations may require additional time.

    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