20 Best Window Companies in Seymour, CT (2025 Reviews)

Looking to improve your home’s energy efficiency? The top window replacement companies can help.

We analyzed all the top-rated window companies in Seymour and selected the best 20 based on:

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

By EcoWatch Local Advisors

Updated January 24, 2025

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.

Whether you're doing renovations or have old windows, windows play a key role in conserving energy in your home. According to the Department of Energy, heat or cool air lost through traditional, outdated windows could be responsible for 25-30% of heating and cooling use.

That’s also bad news for the environment, as the additional energy used by drafty windows increases your carbon footprint.

We’ve compiled this guide on the top installation companies to help you in your search, so you can not only enjoy brand-new windows, but also save money on your power bills.

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Seymour

The EcoWatch Reviews team examined dozens of window providers in Seymour to find the top ones for our readers. The installers we’ve included in this article scored best in our categories: energy-efficient offerings, price, availability, customer service and more.

Window World logo
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World offers windows expertise in Seymour. Window World has over 27 years of experience in the windows industry, and it currently serves 200 locations nationwide. Its reputation is backed by all the positive reviews from customers online.

If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, this may be the company for you.

Energy Efficiency of Window World Windows

Window World is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Window World representative when inquiring about services.

How much does Window World cost in Seymour?

Window World does not display prices on its website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can receive a quote on the company’s website.

Renewal by Andersen logo
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen offers the best availability in Seymour. Andersen has over 27 years of experience in the windows industry, and it currently serves nearly every state except Mississippi and West Virginia. Its reputation is backed by all the positive reviews from customers online.

If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the company for you.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Andersen representative when inquiring about services.

How much does Renewal by Andersen cost in Seymour?

Andersen does not display prices 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 more accurate information, you can receive a quote on the company’s website.

Aeroseal Windows logo
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

Aeroseal Windows offers the best window installation for businesses in Seymour. Aeroseal has over 23 years of experience in the windows industry, and it currently serves 13 states and Washington D.C. Its reputation is backed by all the positive reviews from customers online.

If you’re looking for a company that installs windows and doors at businesses across the Eastern U.S, this may be the company for you.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Aeroseal representative when inquiring about services.

How much does Aeroseal Windows cost in Seymour?

Aeroseal does not display prices on its website, but it provides high-quality windows at a competitive price point. If you’d like more accurate information, you can receive a quote on the company’s website.

Window Nation logo
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 Seymour. Window Nation has over 16 years of experience in the windows industry, and it currently serves residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by all the positive reviews from customers online.

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, this may be the company for you.

Energy Efficiency of Window Nation Windows

Window Nation is an Energy Star partner offering a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Window Nation representative when inquiring about services.

How much does Window Nation cost in Seymour?

Window Nation does not display prices 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. If you’d like more accurate information, you can receive a quote on the company’s website.

We aim to remain unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.

More Window Companies in Seymour

Renewal by Andersen - Branford

Branford, CT
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Window Replacement/Installation
  • Service icon Skylights

Website: http://www.renewalbyandersen.com/window-company/865-southern-connecticut.aspx
Address: 38 N Harbor St, Branford, CT 06405
Phone: (203) 274-8950

Power Home Remodeling

Trumbull, CT
4.7
★★★★★
  • Pros icon Timely Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://powerhrg.com/
Address: 60 Commerce Dr Suite 150, Trumbull, CT 06611
Phone: (203) 659-4843

Window Nation

Wallingford, CT
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Glass Doors

Website: https://www.windownation.com/hartford-ct-showroom/
Address: 1070 N Farms Rd Unit 1, Wallingford, CT 06492
Phone: (475) 253-0015

Bert Falsetti's Home Improvement LLC

Shelton, CT
5.0
★★★★★

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Double-Hung
    • Service icon Energy-Efficient Options
    • Service icon Vinyl Frames

    Website: http://bertfalsettillc.wix.com/falsetti
    Address: 56 Woodfield Dr, Shelton, CT 06484
    Phone: (203) 258-5177

    Window Depot USA of Southern CT

    Trumbull, CT
    5.0
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Timely Service
    • Pros icon Free assessment
    • Pros icon Price Transparency

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Bay Windows
    • Service icon Glass Doors
    • Service icon Double-Hung
    • Service icon Window Replacement/Installation
    • Service icon Vinyl Frames
    • Service icon Triple Pane Glass

    Website: http://windowdepotsouthernct.com/
    Address: 5726 Main St STe 2a, Trumbull, CT 06611
    Phone: (203) 309-6027

    United Home Experts

    Norwalk, CT
    5.0
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Fiberglass Frames
    • Service icon Window Replacement/Installation

    Website: https://unitedhomeexperts.com/united-home-experts-norwalk-ct-06854-siding-roofing-windows-doors/
    Address: 50 Washington St, Norwalk, CT 06854
    Phone: (203) 718-0597

    Paramount Gallery

    West Hartford, CT
    5.0
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Good Customer Service
    • Pros icon Educational Website

    Services Offered

    • Service icon Glass Doors
    • Service icon Energy-Efficient Options
    • Service icon Custom Window Designs
    • Service icon Window Replacement/Installation

    Website: http://paramountgallery.us/
    Address: 121 Talcott Rd, West Hartford, CT 06110
    Phone: (860) 231-7884

    ZN Construction

    Canton, CT
    5.0
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Timely Service
    • Pros icon Free assessment
    • Pros icon Educational Website
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Energy-Efficient Options

    Website: http://znconstructionct.com/
    Address: 5 Albany Turnpike Unit B6, Canton, CT 06019
    Phone: (860) 318-6340

    Greenwich Windows Replacement

    Greenwich, CT
    5.0
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Good Customer Service
    • Pros icon Free assessment

    Services Offered

    • Service icon Double-Hung
    • Service icon Window Replacement/Installation
    • Service icon Bay Windows

    Website: http://www.greenwichwr.com/
    Address: 777 West Putnam Avenue, Greenwich, CT 06830
    Phone: (203) 424-3446

    Flawless Glass & Mirror LLC

    Holbrook, NY
    5.0
    ★★★★★
    • Pros icon Customized glass options
    • Pros icon Free in-home consultation
    • Pros icon Good Customer Service
    • Pros icon Price Transparency
    • Pros icon Owner-operated small business
    • Pros icon Educational Website
    • Pros icon Free assessment

    Services Offered

    • Service icon Mirrors
    • Service icon Glass Showers
    • Service icon Window Replacement/Installation

    Website: http://flawlessglassandmirror.com/
    Address: 1350 Lincoln Ave # 10, Holbrook, NY 11741
    Phone: (631) 275-0485

    Big Dawg Home Improvements

    South Windsor, CT
    5.0
    ★★★★★
    • Pros icon Timely Service
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Skylights
    • Service icon Window Replacement/Installation
    • Service icon Window Repair

    Website: http://bigdawghomeimprovements.com/
    Address: 658 Foster St, South Windsor, CT 06074
    Phone: (860) 477-6673

    Putnam Windows Inc.

    Cold Spring, NY
    5.0
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Free assessment

    Services Offered

    • Service icon Wood Frames
    • Service icon Vinyl Frames
    • Service icon Window Replacement/Installation
    • Service icon Glass Doors

    Website: http://putnamwindows.com/
    Address: 2560 US-9, Cold Spring, NY 10516
    Phone: (845) 265-4382

    Doors & Windows

    Albertson, NY
    5.0
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Free assessment
    • Pros icon Online product shopping
    • Pros icon Free in-home or virtual consultation
    • Pros icon Sunday availability

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Double-Hung
    • Service icon Vinyl Frames
    • Service icon Wood Frames
    • Service icon Bay Windows

    Website: http://usdoorswindows.com/
    Address: 830 Willis Ave, Albertson, NY 11507
    Phone: (516) 517-4328

    M & R Windows

    Bronx, NY
    5.0
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Timely Service

    Services Offered

    • Service icon Window Replacement/Installation

    Website: http://mandrwindows.com/
    Address: 4510 Bullard Ave, Bronx, NY 10470
    Phone: (718) 652-1300

    Budget Blinds of Enfield and Hartford

    Somers, CT
    5.0
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Educational Website

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Custom Window Designs

    Website: https://www.budgetblinds.com/Enfield/
    Address: 21 S Rd, Somers, CT 06071
    Phone: (860) 265-3900

    Edge Remodeling, Inc.

    Franklin Square, NY
    5.0
    ★★★★★
    • Pros icon Labor warranties available
    • Pros icon Free same-day estimates
    • Pros icon Price Transparency
    • Pros icon Family-owned and operated
    • Pros icon Good Customer Service
    • Pros icon Free assessment

    Services Offered

    • Service icon Window Replacement/Installation

    Website: http://edgeremodelinginc.com/
    Address: 1102 Hempstead Turnpike, Franklin Square, NY 11010
    Phone: (516) 860-8630

    Parco Home Improvement Corp.

    Franklin Square, NY
    5.0
    ★★★★★
    • Pros icon Price Transparency
    • Pros icon Free assessment

    Services Offered

    • Service icon Window Replacement/Installation
    • Service icon Vinyl Frames
    • Service icon Energy-Efficient Options

    Website: http://www.kpsearch.com/DF/Parco/all.asp
    Address: 424 Dogwood Ave, Franklin Square, NY 11010
    Phone: (516) 560-7626

    Aspen Home Remodeling, LLC.

    Oradell, NJ
    5.0
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Good Customer Service
    • Pros icon Free assessment

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Skylights
    • Service icon Window Replacement/Installation

    Website: https://www.aspenhomeremodelingllc.com/
    Address: 700 Kinderkamack Rd #101, Oradell, NJ 07649
    Phone: (201) 994-5354

    Calvary Remodeling

    Mystic, CT
    5.0
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Price Transparency

    Services Offered

    • Service icon Window Replacement/Installation

    Website: https://www.calvaryremodeling.com/
    Address: 34 Greenmanville Ave, Mystic, CT 06355
    Phone: (203) 666-9326

    Bencar Building Systems LLC

    Wallingford, CT
    4.9
    ★★★★★
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation

    Website: https://www.bencarbuildingsystems.com/
    Address: 210 N Plains Industrial Rd, Wallingford, CT 06492
    Phone: (203) 269-9204
    Seymour Window Cost Calculator

    Calculate how much you can expect to pay for window installation and replacement in Seymour, CT using our customized window cost calculator.

    Estimated Window Cost:
    161 homeowners have requested a free estimate in the last 3 days.

    Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

    How Installing Energy-Efficient Windows in Seymour Saves You Money

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

    • Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
    • Reduce your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can lower your carbon footprint by about 12%, according to Energy Star.
    • Save on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up around 25-30% of residential energy use. Installing energy-efficient windows can help decrease that number, which helps you save some money on your bills.
    • Protect your investment: When you have an older home, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its value.

    Estimated Cost of Window Replacement in Seymour

    Windows come in various shapes and sizes, so costs and services will vary greatly. Here are the average costs and the primary services that you can find from window installers.

    How Much Do New Windows Cost?

    According to our research, the typical cost of replacing a single window is around $600. However, window replacement costs can range from $200 to $1,200 a window. Costs will vary considerably based on the quality of your products, your location, the current condition of your home and the number of windows you need. Many window companies also offer replacement door installations and other add-ons like shutters, baths, coating and more. These extra services will increase your overall project costs.

    With windows, efficiency is the most important factor for many homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Seymour homeowners $420+ a year after replacing single-pane windows.

    How much your window installation costs will also vary based on the kind of material you choose for the frames. Wood windows are usually the most expensive, though it depends on whether they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.

    What Services do Window Installers Offer?

    The first step when considering an installation is to figure out whether you want a full-frame or pocket installation.

    Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has a great amount of deterioration. Full-frame installations are more comprehensive and will increase overall costs. A pocket installation entails installing a new window without replacing the frame. This means instead of tearing out the whole unit and reinstalling it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.

    If you’re hiring a reputable window installation company, your company can recommend the best type for your project. In Seymour, the decision will mostly be influenced by how much damage there is currently and how old your existing frames are.

    Advertisement

    Best Availability

    Renewal by Andersen

    ★★★★★
    4.5
    • Great Industry Reputation
    • Award-winning Company
    • Member of US Green Building Council
    • Manufactures products in-house
    Save $375 Off Each Window
    Get Estimate

    Power Home

    ★★★★★
    4.5
    • Uses eco-friendly materials
    • Well-trained, certified installers
    • Lifetime or lengthy warranty
    Next-Day Appointments Available
    Get Estimate

    Best for Residential Windows

    Window Nation

    ★★★★★
    4.0
    • Custom Designs
    • Wide variety of products and services
    • Manufactures products in-house

    How We Choose the Best Window Installers in Seymour

    In our search to find the most reliable, eco-friendly window installers in Seymour, the EcoWatch Reviews team landed on the above companies as the best window installation companies in the city. We have evaluated the best window installation companies in Seymour primarily based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

    Service Area

    This one is pretty self-explanatory, but we’ve chosen to highlight window installers that serve Seymour so you can find the right window installation company near you.

    Work Quality

    When installing new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the brand you get. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

    Customer Reviews

    We analyzed trends in recent customer feedback to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including quality of parts, warranty, professionalism, cost, quality of installation and more.

    Cost

    This one is a give-and-take: similar to other services, cheap window companies are not going to provide the highest quality service. On the other hand, we want to make sure we’re highlighting companies that offer a range of price and financing options so they’re accessible to most homeowners.

    Warranty

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

    Years of Experience

    Because of Seymour’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Seymour window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

    Seymour, CT Window Replacement FAQs

    What is the typical cost to replace windows in a home?

    The typical cost to replace one window can range from $450 to $650. There are a variety of factors that influence the price, which include styles and sizes of windows, local labor costs, your property’s location, how energy-efficient the windows are, the number of windows and the materials used in designing the windows.

    What kind of window is the most energy-efficient?

    Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open are more efficient than windows that do. If you want to be sure you’re getting the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they’re certified energy-efficient by the U.S. Department of Energy.

    What do window installation companies do?

    Window installation professionals go to your home to remove your old windows and replace them with new ones. Some providers install products made by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is done.

    How often do you need to replace windows?

    Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may be in need of replacement.

    How long does window installation typically take?

    Since the average installation time is 30 minutes per window, about 16 windows can be installed during an 8-hour work day.