20 Best Window Companies in Stony Brook, NY (2025 Reviews)

If you’re looking to upgrade to new windows, our guide to the top window installation companies can help.

We analyzed all the top-rated window companies in Stony Brook 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 team is all about finding solutions for eco-conscious homeowners in Stony Brook. Drafty or leaky windows can cut your home’s energy efficiency by up to 30%, according to the Department of Energy. In Stony Brook, that’s about $215 per year that you could save on your power bills after making the switch.

That’s bad news for both your wallet and the environment, but one of the top window installation companies can help with that.

Because windows have such a considerable impact on your home, selecting the right company for you is a big choice to make. That’s why the EcoWatch team has curated this list of the best window installation companies, so you can make an informed decision more easily.

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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 Stony Brook

The EcoWatch team assessed dozens of installers across the country to find the best window installation companies for our readers. We assessed the installers based on their energy-efficient offerings, local experience, price, customer service, coverage area 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 Stony Brook. It's 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 windows industry, and it currently serves 200 locations nationwide. The company has many positive reviews from customers on online review websites.

Window World may be the company for you if you want one 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. 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 Stony Brook?

Though prices are not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to know for sure.

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 Stony Brook. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the windows industry, and it currently serves nearly every state except Mississippi and West Virginia. The company has many positive reviews from customers on online review websites.

Andersen may be the company for you if you want one 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. 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 Stony Brook?

Though prices are 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. Getting a free quote on its website is the best way to know for sure.

We’ve recommended installers with shining reputations, but keep in mind these are national companies, so your service may differ depending on your local crew. We have tried to remain unbiased and transparent by mentioning pros and cons for each company reviewed.

More Window Companies in Stony Brook

Renewal by Andersen of Long Island

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

Services Offered

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

Website: https://www.renewalbyandersen.com/window-company/800-long-island-ny/retailer
Address: 2029 New Hwy, Farmingdale, NY 11735
Phone: (631) 843-1713

Power Home Remodeling

Melville, NY
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Timely Service

Services Offered

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

Website: https://powerhrg.com/
Address: 1660 Walt Whitman Rd #140, Melville, NY 11747
Phone: (631) 339-7268

Window Nation

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

Services Offered

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

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

Flawless Glass & Mirror LLC

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

Services Offered

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

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

United Home Experts

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

Window Depot USA of Southern CT

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

Services Offered

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

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

Bert Falsetti's Home Improvement LLC

Shelton, CT
5.0
★★★★★

    Services Offered

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

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

    Greenwich Windows Replacement

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

    Services Offered

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

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

    Doors & Windows

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

    Services Offered

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

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

    Parco Home Improvement Corp.

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

    Services Offered

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

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

    Edge Remodeling, Inc.

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

    Services Offered

    • Service icon Window Replacement/Installation

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

    M & R Windows

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

    Services Offered

    • Service icon Window Replacement/Installation

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

    Cityproof Soundproof Windows

    Long Island City, NY
    5.0
    ★★★★★
    • Pros icon No-construction services available
    • Pros icon Good Customer Service
    • Pros icon Over 50,000 installations completed
    • Pros icon Timely Service
    • Pros icon Trademark soundproof Citiwindows
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Free assessment

    Services Offered

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

    Website: https://www.cityproof.com/
    Address: 10-11 43rd Ave, Long Island City, NY 11101
    Phone: (718) 786-1600

    Aspen Home Remodeling, LLC.

    Oradell, NJ
    5.0
    ★★★★★
    • Pros icon Educational Website
    • 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

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

    HDL Construction LLC — Windows replacement, Roofing, Roof service, Siding replacement, Chimney, Deck, Masonry

    Hasbrouck Heights, NJ
    5.0
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Saturday and Sunday availability
    • Pros icon 24-hour emergency service
    • Pros icon Price Transparency
    • Pros icon Educational Website
    • Pros icon Free in-home consultation
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation

    Website: http://www.hdlconstructionnj.com/
    Address: 184 Boulevard Apt A, Hasbrouck Heights, NJ 07604
    Phone: (201) 375-5437

    United Windows And Glass Repair LLC

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

    Services Offered

    • Service icon Tempered Glass
    • Service icon Energy-Efficient Options
    • Service icon Window Repair
    • Service icon Window Replacement/Installation
    • Service icon Double-Hung
    • Service icon Bay Windows
    • Service icon Glass Repair

    Website: https://www.unitedwindowsandglassrepair.com/
    Address: 8714 21st Ave, Brooklyn, NY 11214
    Phone: (929) 969-0867

    Smithtown Window Replacement and Doors

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

    Services Offered

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

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

    Services Offered

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

    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 Price Transparency
    • Pros icon Free assessment
    • Pros icon Educational Website
    • Pros icon Good Customer Service
    • Pros icon Family-owned and operated
    • Pros icon Saturday availability
    • Pros icon Online appointment scheduling

    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

    MK Window Treatments

    Greenwich, CT
    4.9
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Good Customer Service

    Services Offered

    • Service icon Window Replacement/Installation

    Website: http://www.mkwindowtreatments.com/
    Address: 270 Mason St, Greenwich, CT 06830
    Phone: (203) 900-1500
    Stony Brook Window Cost Calculator

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

    There are quite a few benefits of switching to energy-efficient windows. Some reasons you may want to consider making the change include the following:

    • Decrease your carbon footprint: In Stony Brook, you can lower your indirect greenhouse gas emissions by about 307 pounds per year when you upgrade to energy-efficient windows.
    • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
    • Save on power bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of residential energy use. Installing energy-efficient models can help decrease how much energy is used in your home, therefore saving you about 12% more on your bills.
    • Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes usually have windows that are outdated, drafty or maybe even damaged in some way. Upgrading your windows could help increase the value of your home if you decide to sell.

    Estimated Cost of Window Replacement in Stony Brook

    Windows come in various shapes and sizes, so costs and services will differ considerably. Here are the typical costs and services that you’ll find from the average window installation company.

    How Much Do New Windows Cost?

    The average cost to replace one window is about $600 but can range from $200 to $1,200. Costs will vary considerably depending on your location, the quality of your products, the number of windows you need and the current condition of your home. A lot of window companies also offer door installations and other add-ons like baths, shutters, coating and more. These extra services will increase your overall project costs.

    Whether or not you pick energy-efficient windows is another factor that will affect the cost. These will usually cost more than other windows, but on the other hand, you can save about $215 a year on your energy bills in Stony Brook.

    How much your window installation costs will also vary depending on the kind of window material you choose for the frames. Wood windows are generally the most expensive, though it depends on whether they are solid 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 a window installation is to figure out whether you want a full-frame or pocket installation.

    A full-frame installation is a replacement of the full window. This service involves taking out the old window, the sill, and the exterior and interior trim. It also involves other materials, including insulation and drip edges, which raise the overall cost of the project. Also worth noting: it’s not uncommon for homeowners to have to touch up the paint surrounding the window after a full-frame installation. Pocket installations are simpler and won’t cost as much, as 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.

    If you’re hiring a reputable window installation company, your company can advise you on the best type for your project. In Stony Brook, the choice will mostly depend on the efficiency of your home and how old your existing frames are.

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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

    How We Choose the Best Window Installers in Stony Brook

    EcoWatch reviews are different from most reviews because we examine these companies through a sustainability lens. Along with energy efficiency, we assessed each installer and ranked them using the following methodology:

    Service Area

    This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve Stony Brook so you can find the best window installation company near you.

    Work Quality

    When choosing new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the type of window you opt for. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

    Customer Reviews

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

    Cost

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

    Warranty

    As discussed, windows are a sizable investment, so you’ll want to be certain that investment is protected. Window installation companies that offer 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 a proven track record in the industry. Window installers that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.

    Stony Brook, NY Window Replacement FAQs

    How much does a window install cost?

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

    What type of window is the most energy-efficient?

    A window’s energy efficiency is affected by a number of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient since they are certified by the U.S. Department of Energy.

    When should I use a window installation company?

    You should use a window installation professional whenever you want to upgrade your windows. Installing windows is a complex process that can be difficult and time-consuming, so it’s best handled by the professionals.

    How often do you need to replace your windows?

    Windows typically have a lifespan of about 20 to 30 years, but anytime you see damage on your windows, it’s a good idea to have an expert take a look at them to see if they are in need of a repair or replacement.