20 Best Window Companies in Port Jefferson, NY (2023 Reviews)
When it's time to upgrade your windows, our guide to the top window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Port Jefferson and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Although clean energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home's efficiency can also have a large impact on home energy conservation. During the winter months, the last thing you want is your heat to leak out of your drafty windows.
Fortunately, saving you energy with upgraded windows also helps our goals of reducing energy usage for the environment.
So if you're constructing a new home, renovating or replacing your windows in Port Jefferson, this guide is the best place to get started.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Port Jefferson
The EcoWatch Reviews team evaluated several window installation companies across Port Jefferson to narrow our list down to the top ones. The installers in this article scored the best in our review categories, which include energy-efficient offerings, price, customer service, availability, local expertise and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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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 about 27 years of experience in the window replacement business. Many positive reviews from customers online back the company's reputation.
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 WindowsWindow World is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Window World representative when inquiring about services.
How much does Window World cost in Port Jefferson?Pricing details are not available on Window World’s website, as the cost of window replacement varies greatly based on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can ask for a quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen offers the best availability in Port Jefferson. This company has been operating since 1995 and currently serves nearly every state except Mississippi and West Virginia.
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, this may be the right provider for you.
Energy Efficiency of Renewal by Andersen WindowsThere are a wide range 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 Port Jefferson?Prices aren’t displayed 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. For more accurate information on pricing, you can ask for a quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has about 20 years of experience in the window replacement sector. Its reputation is backed by hundreds of positive reviews on customer review websites.
It has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThe company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products. Not all of Universal’s windows are Energy Star certified, so make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Port Jefferson?Universal doesn’t have any prices listed on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to get more accurate pricing information is to get a free quote from the company.
One thing to note is that the following companies are national, meaning the quality of the service may depend on your local crew. We have tried to remain unbiased and transparent by mentioning pros and cons for every company.
More Window Companies in Port Jefferson
Renewal by Andersen of Long Island
Farmingdale, NY-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Window Replacement
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Double-Hung
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Sliding Glass
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Stained Glass
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Bay Windows
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Glass Showers
Window World of Long Island
Farmingdale, NY-
Price Transparency
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Free assessment
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Timely Service
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Educational Website
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Good Customer Service
Services Offered
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Tempered Glass
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Stained Glass
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Window Replacement
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Bay Windows
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Double-Hung
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Glass Showers
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Fast Delivery
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Sliding Glass
Window Nation
Wallingford, CT-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Energy-Efficient Options
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Stained Glass
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Double-Hung
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Sliding Glass
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Window Replacement
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Bay Windows
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Custom Window Designs
Glass Doctor
Ronkonkoma, NY-
Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Commercial Windows
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Full-Service Installations
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Window Repair
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Double-Hung
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Window Replacement
All Pro Remodeling Corp
Mt Sinai, NY-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Window Replacement
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Double-Hung
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Sliding Glass
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Residential Windows
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Glass Showers
Smithtown Window Replacement and Doors
Smithtown, NY-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Bay Windows
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Commercial Windows
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Custom Window Designs
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Fast Delivery
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Double-Hung
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Window Replacement
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Energy-Efficient Options
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Residential Windows
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Glass Showers
Sunview Enterprise Inc
Setauket- East Setauket, NY-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Full-Service Installations
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Bay Windows
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Residential Windows
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Window Replacement
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Double-Hung
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Custom Window Designs
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Energy-Efficient Options
Coram Glass & Mirror Inc
Ronkonkoma, NY-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Window Replacement
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Fast Delivery
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Residential Windows
AT Home Remodeling Inc Holbrook N.Y. 11741
Holbrook, NY-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Fast Delivery
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Custom Window Designs
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Window Replacement
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Double-Hung
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Aluminum Window Frames
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Residential Windows
EcoView Windows of Long Island
Islandia, NY-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Window Replacement
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Double-Hung
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Custom Window Designs
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Sliding Glass
Flawless Glass & Mirror LLC
Holbrook, NY-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Window Replacement
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Glass Showers
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Residential Windows
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Custom Window Designs
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Window Repair
Home Services at The Home Depot
South Setauket, NY-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Glass Showers
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Residential Windows
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Window Replacement
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Stained Glass
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Custom Window Designs
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Fast Delivery
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Commercial Windows
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Double-Hung
Four Seasons Sunrooms
Holbrook, NY-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Commercial Windows
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
Patchogue Window Installation
Brookhaven, NY-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Residential Windows
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Double-Hung
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Stained Glass
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Energy-Efficient Options
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Fast Delivery
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Sliding Glass
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Bay Windows
Long Island Window & Door Ltd
Commack, NY-
Price Transparency
Services Offered
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Window Replacement
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Window Repair
Home Comfort Practice, Inc.
Stratford, CT-
Timely Service
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Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Window Replacement
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Commercial Windows
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Custom Window Designs
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Energy-Efficient Options
Ener-G Tech, Inc.
Stratford, CT-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Glass Showers
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Commercial Windows
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Energy-Efficient Options
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Custom Window Designs
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Window Replacement
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Residential Windows
Fancy House, LLC
Stratford, CT-
Educational Website
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Free assessment
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Residential Windows
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Glass Showers
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Sliding Glass
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Window Replacement
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Custom Window Designs
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Fast Delivery
Standard Glass
Bridgeport, CT-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Commercial Windows
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Window Replacement
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Glass Showers
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Residential Windows
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Window Repair
New York Glass And StoreFront
Huntington Station, NY-
Educational Website
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Price Transparency
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Good Customer Service
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Timely Service
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Free assessment
Services Offered
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Aluminum Window Frames
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Double-Hung
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Commercial Windows
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Residential Windows
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Window Repair
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Custom Window Designs
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Tempered Glass
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Glass Showers
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Window Replacement
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Sliding Glass
Calculate how much you can expect to pay for window installation and replacement in Port Jefferson, 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 Port Jefferson Saves You Money
By switching to energy-efficient windows, you and your family can benefit in several ways, including:
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, particularly if you have an older home.
- Better temperature control in your home: Residing in a hot city like Port Jefferson often means depending on your AC to keep your home cool. Energy-efficient windows can cut back on how much cool air is lost through your windows when cooling your home.
- Better temperature control in your home: Energy-efficient windows can cut back on how much heat is lost through your windows when heating your home.
- Reduce your carbon footprint: Reducing how much energy you use also lowers your carbon emissions. You could reduce it by 307 pounds per year on average.
Estimated Cost of Window Replacement in Port Jefferson
Each window replacement company offers various services and has varying prices depending on a few factors.
How Much Do New Windows Cost?
Although the average to install one window is around $600, it can range from $200 to $1,200. But prices differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door replacements, which carry a higher price tag.
It's important to note that windows with the best efficiency may cost more initially but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Port Jefferson homeowners $215+ a year when replacing single-pane windows.
Requesting free quotes from multiple providers is the best way to figure out which one is right for you.
What Services do Window Installers Offer?
When it comes to window replacements, there are generally two kinds that your provider will offer: full-frame and pocket installations.
Full-frame installations are usually recommended when you want a new style or your window has a lot of rot. With this service, your professionals will replace the total window, including the frame, sill and trim. Pocket installations (or retrofits) involve replacing a window within its existing frame, which makes pocket installations more simple and affordable. However, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.
Your window installation company should be able to help you decide which type of installation you should get.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Port Jefferson
In our search to make your home improvements easier and more eco-friendly in Port Jefferson, EcoWatch landed on the above companies as the best window installation companies in the city. Along with energy efficiency, we assessed several window installers in Port Jefferson and assigned rankings using the following methodology:
Service Area
Because this is a guide for Port Jefferson, we only included companies that provide services to the city. There are certainly other reputable providers that didn't make the list because they wouldn't be able to serve homeowners in Port Jefferson.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each company in our guide to make sure 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 feedback about their experience with a certain window installation company, it won't be featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers would like 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
Protecting your investment in new windows is important. That's why window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a good track record in the industry. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Port Jefferson, NY Window Replacement FAQs
What is the average cost to install windows in a home?
The average cost of replacing a window can range between $450 and $650. There are a variety of factors that influence the cost, such as the materials used in designing the windows, the number of windows, how energy-efficient the windows are, your property's location, local labor costs and styles and sizes of windows.
What type of window is the best for energy efficiency?
A window's energy efficiency is influenced by 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 since they are certified by the U.S. Department of Energy.
When should I use a window installation company?
You should hire a window installation professional whenever you need to upgrade your windows. Installing windows is a complicated process that can take a lot of time, so it's best handled by the professionals.
How long does window installation take?
Since a window takes about 30 minutes to install, about 16 windows can be installed in an 8-hour work day.