20 Best Window Companies in Southold, NY (2025 Reviews)

When it’s time to replace your windows, our reviews of the top window installation companies can help you find the right provider for you.

We analyzed all the top-rated window companies in Southold 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.

The EcoWatch Reviews team is all about helping Southold homeowners find eco-conscious solutions for their homes. If your windows are outdated or drafty, you could be losing 25-30% of your home’s heat or cool air right out of them.

Installing new, efficient windows on your house can help you save money each month on your electric bills — and you can help the environment, too.

So if you’re constructing a new home, renovating or changing out old windows in Southold, this is the best place to get started.

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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 Southold

The EcoWatch Reviews team examined dozens of installers in Southold to find the best window companies for our readers. The providers in this article scored best in our review categories, which include energy-efficient offerings, customer service, price, availability, local expertise 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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window installation industry. The provider has many glowing reviews from customers on online review websites.

You may want to consider choosing Window World 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.

Energy Efficiency of Window World Windows

Window World appeals to eco-conscious consumers by providing energy-efficient window offerings. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.

How much does Window World cost in Southold?

Though pricing is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about the cost.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window installation industry. The provider has many glowing reviews from customers on online review websites.

You may want to consider choosing Andersen 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.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen appeals to eco-conscious consumers by providing energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.

How much does Renewal by Andersen cost in Southold?

Though pricing is not readily available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.

We aim to stay unbiased and transparent by including pros and cons for each company. Additionally, any partnerships do not affect our reviews.

More Window Companies in Southold

Renewal by Andersen - Branford

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

Services Offered

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

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 Free assessment
  • Pros icon Price Transparency
  • Pros icon Timely Service
  • Pros icon Good Customer Service

Services Offered

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

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 Free assessment
  • Pros icon Educational Website

Services Offered

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

Calvary Remodeling

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

Services Offered

  • Service icon Window Replacement/Installation

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

Bert Falsetti's Home Improvement LLC

Shelton, CT
5.0
★★★★★

    Services Offered

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

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

    Paramount Gallery

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

    Services Offered

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

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

    Flawless Glass & Mirror LLC

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

    Services Offered

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

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

    Window Depot USA of Southern CT

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

    Services Offered

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

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

    Big Dawg Home Improvements

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

    Services Offered

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

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

    ZN Construction

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

    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

    United Home Experts

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

    Services Offered

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

    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

    Budget Blinds of Enfield and Hartford

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

    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

    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

    Advanced Window Systems LLC

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

    Services Offered

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

    Website: https://www.advancedwindowsystems.com/
    Address: 14 Alcap Ridge, Cromwell, CT 06416
    Phone: (860) 718-4586

    Nu-Face Home Improvements

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

    Services Offered

    • Service icon Glass Showers
    • Service icon Glass Doors
    • Service icon Window Replacement/Installation
    • Service icon Energy-Efficient Options
    • Service icon Double-Hung

    Website: https://nufacect.com/
    Address: 855 Berlin Turnpike, Berlin, CT 06037
    Phone: (860) 681-3002

    Smithtown Window Replacement and Doors

    Smithtown, NY
    4.9
    ★★★★★
    • Pros icon Good Customer Service
    • Pros icon Free assessment
    • Pros icon Weekend availability
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Family-owned and operated
    • Pros icon Energy-efficient windows and doors

    Services Offered

    • Service icon Vinyl Frames
    • Service icon Fiberglass Frames
    • Service icon Tempered Glass
    • Service icon Wood Frames
    • Service icon Triple Pane Glass
    • Service icon Glass Doors
    • Service icon Window Repair
    • Service icon Storm/Impact Windows
    • Service icon Glass Showers
    • Service icon Energy-Efficient Options
    • Service icon Custom Window Designs
    • Service icon Window Replacement/Installation
    • Service icon Metal Frames
    • Service icon Bay Windows
    • Service icon Double-Hung

    Website: https://smithtownwindowsdoors.com/
    Address: 43 Landing Ave, Smithtown, NY 11787
    Phone: (631) 646-2386

    Mr. Handyman of Huntington and Smithtown

    East Northport, NY
    4.9
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Free assessment
    • Pros icon Timely Service
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Repair
    • Service icon Window Replacement/Installation
    • Service icon Bay Windows

    Website: https://www.mrhandyman.com/huntington-smithtown/
    Address: 514 Larkfield Rd Suite 8, East Northport, NY 11731
    Phone: (631) 257-3213

    Homestead Window Treatments

    Huntington Station, NY
    4.9
    ★★★★★
    • Pros icon Online appointment scheduling
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Saturday availability
    • Pros icon Good Customer Service
    • Pros icon Family-owned and operated
    • Pros icon Free assessment

    Services Offered

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

    Website: https://homesteadwindowtreatments.com/
    Address: 11 Walt Whitman Rd, Huntington Station, NY 11746
    Phone: (631) 380-4992

    Venture Window LLC

    Cranston, RI
    4.9
    ★★★★★
    • Pros icon Free assessment

    Services Offered

    • Service icon Vinyl Frames
    • Service icon Window Replacement/Installation
    • Service icon Custom Window Designs
    • Service icon Glass Doors
    • Service icon Double-Hung
    • Service icon Skylights

    Website: https://venturewindow.com/
    Address: 33 Freeway Dr, Cranston, RI 02920
    Phone: (401) 273-3600

    Turner Home Improvement Contractors, LLC

    Glastonbury, CT
    4.8
    ★★★★★
    • Pros icon Educational Website
    • Pros icon Free assessment
    • Pros icon Good Customer Service
    • Pros icon Price Transparency
    • Pros icon Timely Service

    Services Offered

    • Service icon Glass Doors
    • Service icon Window Replacement/Installation

    Website: https://www.turnerhomeimprovement.com/
    Address: 182 Oakwood Dr, Glastonbury, CT 06033
    Phone: (860) 633-1400
    Southold Window Cost Calculator

    Calculate how much you can expect to pay for window installation and replacement in Southold, NY 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 Southold Saves You Money

    There are several perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch are the following:

    • Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can lower your carbon footprint by about 12%, according to Energy Star.
    • Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
    • Save on energy bills: Upgrading to energy-efficient windows lowers your energy bills by about 12% because you use less energy.
    • Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help raise the value of your home if you decide to sell.

    Estimated Cost of Window Replacement in Southold

    Windows come in various shapes and sizes, so costs and services will vary tremendously. Here are the typical costs and the primary services that you can find from window installation companies.

    How Much Do New Windows Cost?

    According to our market research, the average cost of replacing a single window is about $600. However, window replacement costs can range from $200 to $1,200 for each window. But costs differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also provide door replacements, which have a higher price tag.

    With windows, efficiency is the most important factor for most homeowners. Windows with higher efficiency may cost more upfront, but by increasing the efficiency of your home — especially during the summer and winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Southold homeowners $215+ per year after replacing single-pane windows.

    Asking for free quotes from several companies is the best way to find out which one will work best for your budget.

    What Services do Window Installers Offer?

    Generally, there are two types of window installation services you can get: full-frame and pocket installations.

    Full-frame installations involve replacing the complete window, including the frame, sill and trim. You most likely need a full-frame installation when you want to change the style of your windows or your window has considerable deterioration. These installations are more involved and will increase the overall cost. Pocket installations are simpler and won’t carry as large a bill because they entail merely replacing the window within its existing frame. But if the frame has any damage, you should opt for a full-frame installation instead.

    Your window installation company can recommend the best type for your project. In Southold, the choice will mostly depend on how much damage there is currently and the age and condition of your existing frames.

    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 Southold

    In our hunt to make your home improvements easier and more eco-friendly in Southold, EcoWatch assessed dozens of companies before settling on these. Along with energy efficiency, we assessed each installer and assigned rankings using the following methodology:

    Service Area

    Since this is a guide for Southold, we paid more attention to companies that cover the city. There are certainly other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in Southold.

    Work Quality

    We’re willing to bet that you’re looking for a company to do a great job installing windows. We’ve vetted each company included on this list to ensure its technicians are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.

    Customer Reviews

    Customer feedback is another super important review factor. If most customers don’t have positive feedback about their service from a certain window installation company, it won’t be featured on EcoWatch.

    Cost

    Cheaper windows don’t necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers’ prices, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

    Warranty

    As discussed previously, windows are a hefty investment, so you’ll want to be certain that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

    Years of Experience

    Last but not least, we like to see companies that have been in the industry for quite some time. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.

    Southold, NY Window Replacement FAQs

    How much does window installation cost?

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

    What are the most common types of replacement windows?

    The most common kinds of windows for homes are picture windows, casement windows, double-hung and single-hung windows, slider windows, bay windows, transom windows and awning windows.

    Do you really have to use a window installation company?

    Unless you have experience with home improvement projects and have the time to replace your own windows, we recommend hiring a professional. The window installation process is quite involved and can take anywhere from four to six hours for a single window. Although it’s tempting to try to do it yourself to save money, hiring a professional is a faster, more efficient and much safer option.

    Should I replace my windows all at the same time?

    If you’re upgrading your windows to save on your energy bills, replacing all the windows at the same time is the only way to see a noticeable difference. On the other hand, if you have only one or two windows that are broken or leaky, you can replace just those.