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

Thinking about replacing your windows? We’ve got all the information you need in this guide to the top window installation companies.

We analyzed all the top-rated window companies in Mastic 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 Mastic. During the winter months, the last thing you want is your heat to leak out of your outdated windows.

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

Efficient windows are particularly important in Mastic, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $215 each year.

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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 Mastic

The EcoWatch team examined several window companies in Mastic to find the best ones for our readers. The companies mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

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. This window installation company has been in business since 1995 and currently services 200 locations nationwide. Its reputation is backed by all the positive reviews from customers online.

You may want to consider going with 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’s commitment to sustainability shows in its 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 Mastic?

Window World doesn’t have any cost information listed 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 ask for 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia. Its reputation is backed by all the positive reviews from customers online.

You may want to consider going with 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’s commitment to sustainability shows in its 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 Mastic?

Andersen doesn’t have any cost information listed 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 ask for a quote on the company’s website.

One thing to note is that the companies in this section are national, which means the quality of the service may depend on your local crew. We have tried to stay unbiased and transparent by listing pros and cons for every provider.

More Window Companies in Mastic

Renewal by Andersen of Long Island

Farmingdale, NY
4.9
★★★★★
  • 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 Skylights
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

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

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

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Custom Window Designs
  • 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 Free in-home consultation
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Owner-operated small business
  • Pros icon Good Customer Service
  • Pros icon Customized glass options
  • Pros icon Price Transparency

Services Offered

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

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

Services Offered

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

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

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

    Doors & Windows

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

    Services Offered

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

    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 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 Good Customer Service
    • Pros icon Family-owned and operated
    • Pros icon Free assessment
    • Pros icon Free same-day estimates
    • 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

    Greenwich Windows Replacement

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

    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

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

    Services Offered

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

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

    Calvary Remodeling

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

    Smithtown Window Replacement and Doors

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

    Services Offered

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

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

    Services Offered

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

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

    Life Restoration Inc

    Roosevelt, NY
    4.9
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Good Customer Service
    • Pros icon Saturday availability
    • Pros icon Free in-home consultation
    • Pros icon Transparent and upfront pricing
    • Pros icon Price Transparency
    • Pros icon Educational Website

    Services Offered

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

    Website: https://liferestorationinc.com/
    Address: 45 Frederick Ave, Roosevelt, NY 11575
    Phone: (516) 206-2043

    Simple Choice Home Improvement llc

    Freeport, NY
    4.9
    ★★★★★
    • Pros icon Free assessment
    • Pros icon Price Transparency
    • Pros icon Educational Website

    Services Offered

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

    Website: http://www.simplechoiceremodeling.com/
    Address: 30 S Long Beach Ave, Freeport, NY 11520
    Phone: (516) 426-0536

    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
    Mastic Window Cost Calculator

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

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

    • Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.
    • Save money on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of energy use in your home. Upgrading to energy-efficient windows can help reduce that number, which helps you save some money on your bills.
    • Reduce your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% after you install Energy Star certified windows. In Mastic, that’s about 307 pounds per year on average.
    • Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.

    Estimated Cost of Window Replacement in Mastic

    Each window replacement company offers varying services and has varying price points depending on a few factors.

    How Much Do New Windows Cost?

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

    It’s also worth bearing in mind that energy-efficient windows will typically cost more upfront, but Energy Star estimates that upgrading the windows on your Mastic home can mean an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you’ll save by installing energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.

    How much your window installation costs will also vary based on the type 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 a bit more expensive than vinyl, but they are more efficient.

    What Services do Window Installers Offer?

    In regard to window installations, there are generally two kinds that your installer will have: full-frame and pocket installations.

    Full-frame installations involve replacing the full window, including the trim, sill and frame. Full-frame installations are necessary when you want to change the style of your windows or your window has noticeable deterioration. Because these installations are more involved, they will increase overall costs. A pocket installation involves replacing a window within the existing frame, which tends to be cheaper than a full-frame installation.

    Your window replacement company should be able to help you decide what’s best for your needs. In Mastic, the decision will mostly depend on how old your windows are and if there’s any moisture damage. Wood can decay if it’s not maintained properly over the years, so it’s a good idea to have a professional check your frames and window sills.

    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 Mastic

    In our hunt to make your home improvements easier and more eco-friendly in Mastic, EcoWatch examined dozens of companies before deciding on these. We’ve evaluated the best window installation companies in Mastic primarily based on their energy efficient offerings, as it’s what’s best for the environment and for you as a homeowner. Energy-efficient windows have been shown to reduce your power 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 a wide variety of states and cities so you can find a quality window installation company near you.

    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 installer included in our guide to ensure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.

    Customer Reviews

    Customer feedback is another very important review factor. If the majority of customers don’t have positive things to say about their service from a certain installer, it won’t be featured on EcoWatch.

    Cost

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

    Warranty

    Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies with 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 a while. Window installers that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

    Mastic, NY Window Replacement FAQs

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

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

    Which type of window is the best?

    A window’s energy efficiency depends on a number of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.

    What do window installation companies do?

    Window installers go to your property to remove your old windows and replace them with new ones. Some providers install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation.

    When is the best time of year to replace windows?

    Although you can install windows any time of year, warmer weather is often better for replacing windows. Additionally, it shouldn’t be raining, as rain can make the installation more difficult.

    How do you know it’s time to replace your windows?

    Windows generally last around 20 to 30 years, but anytime you notice damage on your windows, it’s a good time to have them looked at by an expert to determine if they are in need of a repair or replacement.