20 Best Window Companies in Stillwater, NJ (2023 Reviews)
When the time comes to replace your windows, our reviews of the top window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Stillwater 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 green energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your house's energy efficiency can also have a considerable impact on home energy conservation. If your house has old or damaged windows, your AC or heater could be working extra hard to heat or cool your house. This means spending more on electric bills.
Luckily, helping you save energy with more efficient windows also helps our goals of conserving energy and the resources it takes to make it.
As windows are so important for your home, selecting the right company for you is a big decision to make. That's why the EcoWatch team has created this list of the top window replacement companies, so you can more easily make an informed decision.
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 Stillwater
The EcoWatch team evaluated several window installation companies in Stillwater to find the top ones for our readers. The providers we've reviewed in this article scored best in our categories, which include energy-efficient offerings, availability, price, customer service 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 provides windows expertise in Stillwater. This company has 27 years of experience in the windows industry, and it has established itself as one of the most reputable companies in the business. Many positive reviews from customers online back the provider's reputation.
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, Window World may be the perfect provider for you.
Energy Efficiency of Window World WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so be sure to mention that you’d like Energy Star windows when inquiring.
How much does Window World cost in Stillwater?Prices are not available on Window World’s website, as the cost of window installment differs 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. You can request a free quote on its website for more information about the cost.

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 has the best availability in Stillwater. Andersen has been in the window installation business for around 27 years.
Andersen may be the company for you if you want one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsA 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. Not all of Andersen’s offerings are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Stillwater?While prices are 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. For more detailed information on pricing, you can receive a quote from the company.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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Not ideal for residential installations
Aeroseal Windows provides the best window installation for businesses in Stillwater. Aeroseal has around 23 years of experience in the industry, and it currently serves 13 states and Washington D.C. Hundreds of positive reviews on customer review websites back the company's reputation.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner and offers a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to mention that you want energy-efficient windows to your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Stillwater?Aeroseal doesn’t have any cost information listed on its website, but it provides high-quality windows at a competitive price point. For more accurate information on the cost, you can inquire about 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 provides the best warranty in Stillwater. This company has 20 years of experience in the windows industry, and it has established itself as one of the most reputable companies in the business. Many positive reviews from customers online back the provider's reputation.
If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the perfect provider for you.
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 be sure to mention that you’d like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Stillwater?Prices are not available on Universal’s website, as the cost of window installment differs based on how many and what type(s) of windows you need. However, 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. You can request a free quote on its website for more information about the cost.
We aim to be unbiased and transparent by mentioning pros and cons for each installer. Additionally, any partnerships do not influence our reviews.
More Window Companies in Stillwater
Renewal by Andersen of Eastern NY
Middletown, 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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Window Replacement
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Stained Glass
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Glass Showers
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Double-Hung
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Sliding Glass
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Residential Windows
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Commercial Windows
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Custom Window Designs
Window World of North Jersey
Fairfield, NJ-
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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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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Sliding Glass
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Bay Windows
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Residential Windows
Sasse Glass
Augusta, NJ-
Price Transparency
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Educational Website
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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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Residential Windows
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Window Replacement
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Custom Window Designs
RJW Exteriors
Lake Hopatcong, NJ-
Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Double-Hung
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Window Replacement
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Residential Windows
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Custom Window Designs
Cunningham Siding & Replacement
NJ 07836, NJ-
Good Customer Service
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Free assessment
Services Offered
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Commercial Windows
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Window Replacement
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Residential Windows
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Glass Showers
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Fast Delivery
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Custom Window Designs
Home Services at The Home Depot
Matamoras, PA-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
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Fast Delivery
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Glass Showers
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Stained Glass
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Commercial Windows
New Jersey Siding & Windows, Inc.
Randolph, NJ-
Price Transparency
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Free assessment
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Educational Website
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Timely Service
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Good Customer Service
Services Offered
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Double-Hung
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Residential Windows
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Bay Windows
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Sliding Glass
CKG Contractors Inc. Roofing-Siding-Window Experts.
Parsippany-Troy Hills, NJ-
Good Customer Service
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Timely Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Window Replacement
Window Depot USA of Northeast PA
Stroudsburg, PA-
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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Residential Windows
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Bay Windows
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Fast Delivery
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Window Replacement
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Sliding Glass
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Double-Hung
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Custom Window Designs
Roman Stolyarchuk/ Home Improvement Contractor
Morristown, NJ-
Price Transparency
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Free assessment
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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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Custom Window Designs
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Window Replacement
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Fast Delivery
Mighty Dog Roofing
Whippany, NJ-
Good Customer Service
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Timely Service
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Free assessment
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Price Transparency
Services Offered
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Aluminum Window Frames
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Window Replacement
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Fast Delivery
New View Windows and Doors
East Hanover, NJ-
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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Sliding Glass
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Residential Windows
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Window Replacement
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Custom Window Designs
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Fast Delivery
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Double-Hung
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Stained Glass
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Aluminum Window Frames
Blue Nail Exteriors
Montville, NJ-
Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Window Replacement
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Residential Windows
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Fast Delivery
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Custom Window Designs
Basking Ridge Glass and Mirror
Basking Ridge, NJ-
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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Custom Window Designs
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Residential Windows
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Window Repair
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Window Replacement
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Sliding Glass
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Glass Showers
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Commercial Windows
PJ Fitzpatrick
Fairfield, NJ-
Price Transparency
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Educational Website
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Timely Service
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Good Customer Service
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Free assessment
Services Offered
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Window Repair
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Custom Window Designs
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Glass Showers
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Sliding Glass
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Window Replacement
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Commercial Windows
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Double-Hung
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Residential Windows
Lifetime Aluminum
East Hanover, NJ-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
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Timely Service
Services Offered
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Glass Showers
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Aluminum Window Frames
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Double-Hung
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Residential Windows
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Bay Windows
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Custom Window Designs
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Sliding Glass
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Fast Delivery
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Commercial Windows
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Window Replacement
iHome Designs
Oakland, NJ-
Educational Website
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Timely Service
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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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Double-Hung
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Window Replacement
RWC Windows, Doors, Kitchens, & Baths
West Caldwell, NJ-
Good Customer Service
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Free assessment
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Timely Service
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Fast Delivery
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Glass Showers
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Commercial Windows
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Window Replacement
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Residential Windows
Six Brothers Contractors LLC
Lincoln Park, NJ-
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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Residential Windows
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Custom Window Designs
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Window Replacement
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Commercial Windows
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Glass Showers
Madison Door
Madison, NJ-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Fast Delivery
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Bay Windows
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Sliding Glass
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Residential Windows
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Window Replacement
Calculate how much you can expect to pay for window installation and replacement in Stillwater, NJ 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 Stillwater Saves You Money
Energy-efficient windows can benefit you in several ways. Here are a few reasons you may want to think about making the switch:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- 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.
- Save money on energy bills: Because energy-efficient windows reduce how much energy you need to heat or cool your home, the switch can help you save around $289 annually on your energy bills in Stillwater.
- Better temperature control in your home: When you reside in a place like Stillwater where the summers can be quite hot, you usually need to rely on your air conditioner to keep your home cool. Energy-efficient windows can cut back on how hard your AC needs to work to cool your home.
Estimated Cost of Window Replacement in Stillwater
Each window installation company provides various services and has different prices based on several factors.
How Much Do New Windows Cost?
Typically, homeowners in Stillwater can expect that most window installations will range from $250 to $1,200, with the average cost sitting at about $600. But prices vary considerably based 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 have a higher price tag.
It's also worth bearing in mind that energy-efficient windows will usually cost more initially, but Energy Star estimates that switching out the windows on your Stillwater home can mean an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. How much you'll save by upgrading to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
Costs will also vary based on the material of your frame. Aluminum frames are the least expensive. They're sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are somewhat expensive and provide good insulation. Composite frames made using wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
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 total window replacement. It involves removing the old window, the windowsill, and the exterior and interior trim. It also involves extra materials, like insulation and drip edges, which increase the overall cost of the project. Also worth noting: you may have to touch up the paint surrounding the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are simpler and won't cost as much, but you can't do this type of installment if you have any pre-existing rot or water damage.
Your window installation company can help you choose which type of installation you need.
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 Stillwater
EcoWatch reviews are different from other reviews, as we evaluate these companies through a sustainability lens. We've decided to assess the top window replacement companies in Stillwater primarily based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve Stillwater so you can find the right window installation company near you.
Work Quality
When selecting 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 consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the most consistent customer satisfaction. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including quality of parts, warranty, quality of installation, cost, professionalism and more.
Cost
This one is a give-and-take: as with other services, cheap window companies won't always provide the most quality service. On the other hand, we want to make sure we're highlighting companies that provide a wide range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed, windows are a hefty investment, so you'll want to be certain that investment is well protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Stillwater's climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Stillwater window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Stillwater, NJ Window Replacement FAQs
How much does window installation cost?
The national average cost of installing a window is around $600 but can range between $200 and $1,200, based on a variety of factors. The price is typically dependent on the location of your property, the type and material of the window and the size of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What are the most common kinds of replacement windows?
There are various types of windows you can get for your home, including double-hung and single-hung windows, slider windows, casement windows, picture windows, transom windows, awning windows and bay windows.
Can I replace my own windows?
Even though it is possible to install your own windows, doing so is time-consuming and requires a lot of handiness. Using a window installation company can help guarantee that the installation is done properly and that you won't have to spend the time and effort to do it yourself.
Should I replace all my windows at the same time?
If you want to get more efficient windows and save money on energy costs, replacing all your windows at the same time is the only way to see a noticeable difference. However, if you have just a few windows that are broken or drafty, you can replace just those.