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

Are you looking to upgrade your windows? Our guide to the best window installation companies can help you choose the right one for you.

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

A guide on the top window replacement companies in Smithtown may not seem like the most riveting article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might realize. During the winter months, the last thing you want is your heat to leak out of your drafty windows.

Replacement windows improve your home’s insulation, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.

So if you’re building a new home, renovating or updating your windows in Smithtown, you’ve found 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 Smithtown

The EcoWatch team examined dozens of providers that service the Smithtown area to find the best window installation companies by our standards. The providers in this article scored best in our review categories, which include energy-efficient offerings, price, customer service, 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 provides windows expertise in Smithtown. This window installation company has been operating since 1995 and currently provides services to 200 locations nationwide.

Window World may be the company for you if you're looking for 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

There are a wide variety of window types that Window World offers, some of which are Energy Star products. 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 Smithtown?

Prices aren’t mentioned on Window World’s website, but it's known for offering some of the most affordable window installations around. Receiving a free quote on its website is the best way to get more accurate pricing information.

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 provides the best availability in Smithtown. This window installation company has been operating since 1995 and currently provides services to nearly every state except Mississippi and West Virginia.

Andersen may be the company for you if you're looking for 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

There are a wide variety of window types that Renewal by Andersen offers, some of which are Energy Star products. 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 Smithtown?

Prices aren’t mentioned on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Receiving a free quote on its website is the best way to get more accurate pricing information.

One thing to note is that the companies in this section are national, meaning the quality of customer service may vary depending on your local team. We have tried to be unbiased and transparent by mentioning both pros and cons for each provider.

More Window Companies in Smithtown

Renewal by Andersen of Long Island

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

Services Offered

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

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

Services Offered

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

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 Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

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

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 Owner-operated small business
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Customized glass options
  • Pros icon Free in-home consultation

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

United Home Experts

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

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

Window Depot USA of Southern CT

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

Services Offered

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

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

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 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

Doors & Windows

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

Services Offered

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

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

Bert Falsetti's Home Improvement LLC

Shelton, CT
5.0
★★★★★

    Services Offered

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

    Parco Home Improvement Corp.

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

    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 Labor warranties available
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Free same-day estimates

    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 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

    Cityproof Soundproof Windows

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

    Services Offered

    • Service icon Energy-Efficient Options
    • Service icon Window Replacement/Installation
    • 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 Price Transparency
    • Pros icon Good Customer Service
    • Pros icon Free assessment
    • Pros icon Educational Website

    Services Offered

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

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

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

    Services Offered

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

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

    Ben Window & Glass

    Brooklyn, NY
    5.0
    ★★★★★
    • Pros icon Wide selection
    • Pros icon Price Transparency
    • Pros icon Foggy window repair
    • Pros icon Weekend availability
    • Pros icon Free assessment
    • Pros icon Educational Website

    Services Offered

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

    Website: https://benwindowglass.com/
    Address: 431 Bay Ridge Pkwy, Brooklyn, NY 11209
    Phone: (347) 799-0912

    F5 Remodeling

    Rutherford, NJ
    5.0
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Full-service installation
    • Pros icon Family-owned and operated
    • Pros icon Good Customer Service
    • Pros icon Educational Website
    • Pros icon Price Transparency
    • Pros icon Minority-owned and operated

    Services Offered

    • Service icon Window Replacement/Installation

    Website: https://f5remodeling.com/
    Address: 8 Station Square #2, Rutherford, NJ 07070
    Phone: (551) 271-0650

    Smithtown Window Replacement and Doors

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

    Services Offered

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

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

    Services Offered

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

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

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

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

    • Save on energy bills: Since energy-efficient windows decrease the amount of energy used to heat or cool your home, the switch can help you save around $215 annually on your energy bills in Smithtown.
    • Protect your valuables from fading: When you upgrade to energy-efficient windows that have 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: By using less energy once upgrading to Energy Star certified windows, you’ll also be decreasing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
    • Protect your investment: When you have an older home, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its value.

    Estimated Cost of Window Replacement in Smithtown

    Let’s go over the cost of installing new windows and the kinds of services you may need for your home.

    How Much Do New Windows Cost?

    Generally, Smithtown homeowners can expect their window replacements to range from $250 to $1,200. The most common installations sit at about $600. This is because the cost of window installations depend on several factors specific to your home, including the size, material and number of windows you need to install, as well as where your property is located.

    It’s important to keep in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save Smithtown homeowners $215+ a year when replacing single-pane windows.

    Costs will also vary depending on the material of your frame. Aluminum frames have the lowest price. They’re sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made from wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.

    What Services do Window Installers Offer?

    The first thing to ask yourself when getting new windows is: Do you want a full-frame installation or a pocket installation?

    Full-frame installations involve replacing the entire 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 significant rot or deterioration. Full-frame installations require more time and labor and will increase overall costs. A pocket installation means replacing a window within the existing frame, which tends to be cheaper than a full-frame installation.

    Your window installer should be able to help you choose which type of installation you need.

    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 Smithtown

    EcoWatch is different from most reviewers since we’re examining these companies through a sustainability lens. Along with energy efficiency, we reviewed each installer and assigned rankings based on the following methodology:

    Service Area

    Since this is a guide for Smithtown, we only included companies that cover the city. There are certainly other reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in Smithtown.

    Work Quality

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

    Customer Reviews

    We analyzed trends in recent online reviews to determine the companies with the most customer satisfaction. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including warranty, cost, quality of parts, quality of installation, professionalism and more.

    Cost

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

    Warranty

    Protecting your investment in new windows is important. That’s why window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.

    Years of Experience

    Last but not least, we like to see companies that have a good track record in the industry. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

    Smithtown, NY Window Replacement FAQs

    What is the average cost to install new windows in a home?

    The national average cost of replacing one window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is generally dependent on the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

    Which kind of window should I get?

    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’ll get the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — that means they’re certified energy-efficient by the U.S. Department of Energy.

    Can I replace my own windows?

    Although it is possible to install your own windows, doing so requires a lot of time and experience with home improvement projects. Hiring a professional can help ensure that the job is done properly and that you can avoid spending the time and effort of doing it yourself.

    When is the best time of year to replace windows?

    Though you can install windows any time of year, warmer weather is typically better for replacing windows. Additionally, the weather should be dry, as rain can make the installation harder.