20 Best Window Companies in East Northport, NY (2025 Reviews)
Are you thinking about replacing your windows? Our guide to the top window installation companies can help you narrow down which one to choose.
We analyzed all the top-rated window companies in East Northport and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
The EcoWatch Reviews team is all about helping East Northport homeowners find eco-conscious solutions for their homes. During the winter months, the last thing you want is your heat to leak out of your drafty windows.
That’s bad for both your wallet and the environment, but one of the top window installation companies can help you with that.
Efficient windows are particularly important in East Northport, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $215 each year.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in East Northport
The EcoWatch team evaluated dozens of installers that serve the East Northport area to find the best window installation companies by our standards. The installers in this article scored the best in our review categories, which include energy-efficient offerings, customer service, local expertise, availability, price and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World offers windows expertise in East Northport. Window World has been in the window industry for around 27 years.
It 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 WindowsWindow 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 East Northport?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. If you’d like to know for sure, you can inquire about a quote on the company’s website.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen offers the best availability in East Northport. Andersen has been in the window industry for around 27 years.
It 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 WindowsRenewal 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 East Northport?Andersen does not mention prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you’d like to know for sure, you can inquire about a quote on the company’s website.
We aim to remain unbiased and transparent by describing pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in East Northport
Renewal by Andersen of Long Island
Farmingdale, NYEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Double-Hung
Window Replacement/Installation
Bay Windows
Glass Doors
Skylights
Power Home Remodeling
Melville, NYTimely Service
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Flawless Glass & Mirror LLC
Holbrook, NYFree assessment
Price Transparency
Free in-home consultation
Good Customer Service
Customized glass options
Educational Website
Owner-operated small business
Services Offered
Glass Showers
Window Replacement/Installation
Mirrors
United Home Experts
Norwalk, CTEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Fiberglass Frames
Window Replacement/Installation
Doors & Windows
Albertson, NYFree in-home or virtual consultation
Educational Website
Good Customer Service
Sunday availability
Online product shopping
Price Transparency
Free assessment
Services Offered
Vinyl Frames
Wood Frames
Bay Windows
Window Replacement/Installation
Double-Hung
Greenwich Windows Replacement
Greenwich, CTEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Bay Windows
Window Replacement/Installation
Double-Hung
Parco Home Improvement Corp.
Franklin Square, NYPrice Transparency
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Vinyl Frames
Edge Remodeling, Inc.
Franklin Square, NYLabor warranties available
Family-owned and operated
Free same-day estimates
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Window Depot USA of Southern CT
Trumbull, CTTimely Service
Free assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Vinyl Frames
Window Replacement/Installation
Glass Doors
Bay Windows
Triple Pane Glass
Energy-Efficient Options
Double-Hung
M & R Windows
Bronx, NYTimely Service
Price Transparency
Services Offered
Window Replacement/Installation
Bert Falsetti's Home Improvement LLC
Shelton, CTServices Offered
Window Replacement/Installation
Energy-Efficient Options
Vinyl Frames
Double-Hung
Cityproof Soundproof Windows
Long Island City, NYTimely Service
Free assessment
Price Transparency
Trademark soundproof Citiwindows
Good Customer Service
Over 50,000 installations completed
No-construction services available
Educational Website
Services Offered
Energy-Efficient Options
Custom Window Designs
Window Replacement/Installation
Aspen Home Remodeling, LLC.
Oradell, NJPrice Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Skylights
Energy-Efficient Options
Window Replacement/Installation
HDL Construction LLC — Windows replacement, Roofing, Roof service, Siding replacement, Chimney, Deck, Masonry
Hasbrouck Heights, NJPrice Transparency
Good Customer Service
Saturday and Sunday availability
Educational Website
Free assessment
Free in-home consultation
24-hour emergency service
Services Offered
Window Replacement/Installation
United Windows And Glass Repair LLC
Brooklyn, NYFree assessment
Price Transparency
Good Customer Service
Educational Website
Services Offered
Double-Hung
Energy-Efficient Options
Bay Windows
Window Replacement/Installation
Tempered Glass
Window Repair
Glass Repair
Ben Window & Glass
Brooklyn, NYEducational Website
Weekend availability
Free assessment
Price Transparency
Wide selection
Foggy window repair
Services Offered
Window Repair
Window Replacement/Installation
F5 Remodeling
Rutherford, NJFree assessment
Family-owned and operated
Minority-owned and operated
Educational Website
Good Customer Service
Price Transparency
Full-service installation
Services Offered
Window Replacement/Installation
Mr. Handyman of Huntington and Smithtown
East Northport, NYFree assessment
Good Customer Service
Timely Service
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Window Repair
Bay Windows
Homestead Window Treatments
Huntington Station, NYGood Customer Service
Educational Website
Free assessment
Price Transparency
Online appointment scheduling
Family-owned and operated
Saturday availability
Services Offered
Custom Window Designs
Window Replacement/Installation
Smithtown Window Replacement and Doors
Smithtown, NYFamily-owned and operated
Price Transparency
Free assessment
Good Customer Service
Weekend availability
Energy-efficient windows and doors
Educational Website
Services Offered
Glass Showers
Window Replacement/Installation
Metal Frames
Triple Pane Glass
Double-Hung
Storm/Impact Windows
Glass Doors
Fiberglass Frames
Bay Windows
Window Repair
Energy-Efficient Options
Tempered Glass
Custom Window Designs
Wood Frames
Vinyl Frames
Calculate how much you can expect to pay for window installation and replacement in East Northport, NY using our customized window cost calculator.
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 East Northport Saves You Money
By upgrading to energy-efficient windows, you can take advantage of several benefits, including:
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out harmful UV rays.
- Protect your investment: When you have an older home, your windows could also be outdated or drafty. Upgrading your windows is an important part of maintaining your property and its value.
- Reduce your carbon footprint: By using less energy once upgrading to Energy Star certified windows, you’ll also be cutting your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Save on power bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Switching to energy-efficient models can help reduce how much you have to pay, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in East Northport
Windows come in all shapes and sizes, so costs and services will differ greatly. Here are the average costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
Although the national average cost to install a single window is around $600, it can range from $200 to $1,200. Costs will vary significantly based on the current condition of your home, the number of windows you need, the quality of your products and your location. Many window companies also offer door installations and other add-ons like shutters, coating, baths and more. Additional services will increase overall project costs.
Whether or not you opt for energy-efficient windows is another factor that will determine 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 East Northport.
We advise getting free quotes from several window companies to find the one that works best for your budget.
What Services do Window Installers Offer?
In regard to window replacements, there are generally two kinds that your installer will offer: full-frame and pocket installations.
Full-frame installations entail replacing the total window, including the sill, frame and trim. You most likely need a full-frame installation when you want a new style or your window has considerable rot or deterioration. Because these installations are more involved, they will increase overall costs. A pocket installation means replacing a window within the existing frame, which tends to be less expensive than a full-frame installation.
If you’re still trying to decide which kind of installation you need, you can consult with your installer and get their advice. The decision mostly is influenced by how old the frames are and if there’s any damage.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in East Northport
The EcoWatch Reviews team is different from most reviewers, as we evaluate these companies through a sustainability lens. Along with energy efficiency, we analyzed several window installers in East Northport and ranked them using the following methodology:
Service Area
Because this is a guide for East Northport, we only included companies that serve the city. There are certainly reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in East Northport.
Work Quality
When choosing new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the type of window you get. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including quality of installation, warranty, professionalism, quality of parts, cost and more.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies may not provide the highest quality service. On the other hand, we want to ensure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, 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 a good track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
East Northport, NY Window Replacement FAQs
What is the average cost to install new windows in a home?
The national average cost of installing a single window is around $600 but can range from $200 to $1,200, depending on a variety of factors. The price is typically dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What kind of window is the most energy-efficient?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open will be more efficient than windows that do. To be sure you’ll get the most energy-efficient windows, look for models with the blue Energy Star certification — they’re certified energy-efficient by the U.S. Department of Energy.
What services do window installation companies do?
Window installers go to your house to remove your old windows and replace them with new ones. Some companies install products sold by other companies, whereas others install their own windows. The installer will also clean up after the installation is finished.
How often should you replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may be in need of replacement.