20 Best Window Companies in St. James, NY (2023 Reviews)
If you're thinking about upgrading to new windows, our list of the top window installation companies can help.
We analyzed all the top-rated window companies in St. James 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 October 25, 2023
Why you can trust EcoWatch
Although renewable energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house's energy efficiency can also have a big impact on home energy conservation. Potential leaks or drafts from your windows can make your home uncomfortable in the summer or winter.
Luckily, saving you energy with efficient windows also helps our goals of conserving energy and the resources it takes to generate it.
Unlike other sites, EcoWatch ranks window companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.
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 St. James
The EcoWatch team researched many window installation companies across St. James to narrow our list down to the best ones. We assessed the installers based on energy-efficient offerings, price, customer service, coverage area, local experience 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 been in the window business for around 27 years. The company has many glowing reviews from customers online.
It has established itself as 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 WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for 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 St. James?Even though pricing information is not readily available on Window World’s website, 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
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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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for around 27 years. The company has many glowing reviews from customers online.
It has established itself as 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 WindowsRenewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for 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 St. James?Even though pricing information is not readily available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you’d like more accurate information, you can ask for a quote on the company’s website.

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 provides the best warranty in St. James. Universal has been in the window installation industry for around 20 years. 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 WindowsUniversal Windows Direct offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. The 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.
How much does Universal Windows Direct cost in St. James?Prices aren’t displayed on Universal’s 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 information is to receive a free quote from the company.
One thing to note is that the following companies are national, which means the quality of customer service may vary depending on your local crew. We have tried to be unbiased and transparent by listing pros and cons for every provider.
More Window Companies in St. James
Renewal by Andersen of Long Island
Farmingdale, NY-
Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Skylights
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Storm Doors
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Commercial Windows
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Window Install & Replacement
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Andersen
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Bay Windows
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Glass Doors
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Sliding Glass Doors
Window World of Long Island
Farmingdale, NY-
Educational Website
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Free assessment
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Timely Service
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Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Window Install & Replacement
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Bay Windows
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Sliding Glass Doors
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Custom Window Designs
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Storm Doors
Window Nation
Wallingford, CT-
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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Bay Windows
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Energy-Efficient Options
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Fiberglass Frames
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Sliding Glass Doors
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Window Install & Replacement
Mr. Handyman of Huntington and Smithtown
East Northport, NY-
Timely Service
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Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Window Install & Replacement
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Window Repair
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Bay Windows
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Commercial Windows
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Glass Repair
Glass Doctor
Ronkonkoma, NY-
Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Glass Repair
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Mirrors
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Commercial Windows
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Sliding Glass Doors
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Glass Showers
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Window Install & Replacement
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Custom Glass
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Window Repair
EcoView Windows of Long Island
Islandia, NY-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Bay Windows
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Fiberglass Frames
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Sliding Glass Doors
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Window Install & Replacement
All Pro Remodeling Corp
Mt Sinai, NY-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Energy-Efficient Options
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Sliding Glass Doors
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Andersen
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Window Install & Replacement
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Window Repair
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Marvin
Smithtown Window Replacement and Doors
Smithtown, 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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Impact Windows
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Vinyl Frames
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Andersen
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Pella
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Double-Hung
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Window Repair
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Tempered Glass
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Energy-Efficient Options
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Glass Showers
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Sliding Glass Doors
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Window Install & Replacement
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Marvin
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Milgard
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Aluminum Frames
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Commercial Windows
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Bay Windows
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Wood Frames
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Triple Pane Glass
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Custom Window Designs
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Fiberglass Frames
Four Seasons Sunrooms
Holbrook, NY-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Energy-Efficient Options
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Commercial Windows
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Window Install & Replacement
Home Services at The Home Depot
Commack, 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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Storm Doors
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Window Repair
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Window Install & Replacement
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Mirrors
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Wood Frames
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Screen Repair
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Vinyl Frames
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Glass Showers
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Impact Windows
Flawless Glass & Mirror LLC
Holbrook, 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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Window Repair
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Window Install & Replacement
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Mirrors
Clear Image Glass & Mirror
Centereach, NY-
Educational Website
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Price Transparency
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Free assessment
Services Offered
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Window Install & Replacement
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Glass Showers
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Commercial Windows
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Mirrors
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Sliding Glass Doors
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Skylights
AT Home Remodeling Inc Holbrook N.Y. 11741
Holbrook, 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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Aluminum Frames
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Window Repair
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Window Install & Replacement
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Storm Doors
Sunview Enterprise Inc
Setauket- East Setauket, 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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Energy-Efficient Options
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Window Install & Replacement
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Bay Windows
EASTSIDERS
Selden, NY-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Window Install & Replacement
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Glass Showers
Coram Glass & Mirror Inc
Ronkonkoma, NY-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Screen Repair
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Mirrors
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Window Repair
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Glass Showers
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Window Install & Replacement
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Commercial Windows
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Custom Glass
A Father of Four
Sayville, 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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Roof Windows
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Dormer Windows
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Window Install & Replacement
Patchogue Window Installation
Brookhaven, 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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Double-Hung
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Sliding Glass Doors
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Window Install & Replacement
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Window Repair
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Bay Windows
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Energy-Efficient Options
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Vinyl Frames
Tri State Window Factory
Deer Park, NY-
Free assessment
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Timely Service
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Good Customer Service
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Price Transparency
Services Offered
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Vinyl Frames
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Window Install & Replacement
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Sliding Glass Doors
Unified Home Remodeling
Patchogue, NY-
Free assessment
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Price Transparency
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Good Customer Service
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Timely Service
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Educational Website
Services Offered
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Residential Windows
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Commercial Windows
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Window Install & Replacement
Calculate how much you can expect to pay for window installation and replacement in St. James, 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 St. James Saves You Money
Upgrading to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here are more details about how upgrading your windows could help you:
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, especially if you have an older home.
- Save money on electricity bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of residential energy use. Replacing your windows with energy-efficient models can help reduce how much energy is used in your home, therefore saving you about 12% more on your bills.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% once you install Energy Star certified windows. In St. James, that's about 307 pounds per year on average.
Estimated Cost of Window Replacement in St. James
Each window replacement company provides various services and has varying price points based on a few factors.
How Much Do New Windows Cost?
According to our research, the national average cost of installing a single window is about $600. However, window installation costs can range from $200 to $1,200 a window. But prices vary considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door replacements, which will make your project cost more.
Whether or not you choose energy-efficient windows is another factor that will influence 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 St. James.
We recommend getting free quotes from several window installers to find the one that works best for you.
What Services do Window Installers Offer?
There are generally two kinds of window installation services: full-frame and pocket installations.
A full-frame installation is a replacement of the full window. This service involves removing the old window, the windowsill, and the exterior and interior trim. It can also involve extra materials, such as insulation and drip edges, which increase the total cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. Pocket installations are on the simpler end and won't carry as large a bill, as they entail simply replacing the window within its existing frame. But if the frame has any damage or rot, you should opt for a full-frame installation instead.
Your window installation company can recommend the best type for your project. In St. James, the choice will mostly be influenced by how much damage there is currently and the age and condition of your existing frames.
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 St. James
In our search to make your home improvements easier and more eco-friendly in St. James, EcoWatch evaluated dozens of companies before settling on these. We have decided to evaluate the top window installers in St. James mostly based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Since this is a guide for St. James, we paid more attention to companies that provide services to the city. There are other reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in St. James.
Work Quality
We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each company 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
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don't have nice things to say about their service from a certain installer, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies won't always provide the highest quality service. Still, we want to make sure we're highlighting companies that offer a spectrum of price and financing options so they're accessible to most homeowners.
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 labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a proven track record in the industry. Window installation companies 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.
St. James, NY Window Replacement FAQs
What is the typical cost to install windows?
The typical cost to replace a single window ranges between $450 and $650. There are several factors that affect how much it costs, including local labor costs, your property's location, how energy-efficient the windows are, styles and sizes of windows, the number of windows and the materials used in designing the windows.
What kind of window is the most energy-efficient?
A window's energy efficiency is affected by a number of factors, such as the quality of the installation and 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 installers do?
Window installation professionals travel to your home to remove your old windows and replace them with new ones. Some companies install products distributed by other companies, whereas others install their own windows. The installer will also clean up after the installation is done.
How do you know it's time to replace your windows?
Windows generally last around 20 to 30 years, but anytime you see damage on your windows, it's a good idea to have them checked by an expert to determine if they are in need of a repair or replacement.
Should I replace all my windows at the same time?
If you're upgrading your windows to get more efficient windows, replacing all your windows at once is the only way to gain that benefit. On the other hand, if you have only one or two windows that are broken or drafty, you can replace just those.