28 Best Window Replacement Companies in Ontario, NY (Mar 2023)
Window Companies Near Me
Thinking about upgrading your home's windows? We've got all the information you need in this list of the best window installation companies.
We analyzed all the top window installers in Ontario and selected the top 28 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
Although environmentally friendly energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your house's efficiency can also have a large impact on home energy conservation. During the cold winter months, the last thing you want is your heat to leak out of your outdated windows.
That's bad for your wallet and the environment, but one of the best window installation companies can help you with that.
As windows have such a considerable impact on your home, choosing the best 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 make an informed decision more easily.
Best Affordability
Window World
- Low prices relative to competitors
- EnergyStar Partner
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Lifetime warranty
- Manufactures products in-house
- Quality of service will depend on your area
Best Window Replacement Companies in Ontario
The EcoWatch team assessed dozens of installers in Ontario to find the best window companies for our readers. The installers mentioned in this article scored best in our review categories, such as energy-efficient offerings, availability, price, customer service, local expertise and more.

Window World
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Low prices relative to competitors
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EnergyStar Partner
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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 around 27 years of industry experience, and it currently provides services to 200 locations nationwide. The company has a lot of positive reviews from customers online.
You may want to consider choosing Window World if you're looking for a installer 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 WindowsThere are a wide range of window types that Window World offers, some of which are Energy Star products. 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 Ontario?While prices are not readily available on Window World's website, it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to get more accurate pricing information.

Renewal by Andersen
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Great industry reputation
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Member of US Green Building Council
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Award-winning company
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No lifetime warranty
Renewal by Andersen provides the best availability in Ontario. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has over 27 years of experience in the windows industry, and it 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 company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want 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 Ontario?Prices are not available on Andersen's website since the cost of window replacement differs based on how many and what type(s) of windows you need. However, 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 the cost, you can request a quote from the company.

Universal Windows Direct
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Wide variety of products and services
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Lifetime warranty
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Manufactures products in-house
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Quality of service will depend on your area
Universal Windows Direct provides the best warranty in Ontario. Universal has about 20 years of experience in the window replacement sector. Hundreds of positive reviews from customers online back the provider's reputation.
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 offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Ontario?Prices aren't available 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 pricing information is to request a free quote from the company.
We have tried to stay unbiased and transparent by mentioning pros and cons for every provider. Additionally, any partnerships do not affect our rankings.
More Window Replacement Companies in Ontario
Comfort Windows & Doors
Rochester, NY-
Educational Website
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No-Hassle Pricing
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Consistent Workmanship
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Free Quotes
Services Offered
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Glass Showers
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Architectural Glass
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Wonder Windows
Rochester, NY-
Good Customer Service
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Educational Website
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Locally Recognized for Quality
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Free Quotes
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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Double-Hung
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Sliding Glass
Wonder Showers & Baths
Rochester, NY-
No-fee Quotes
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Timely Service
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Residential Windows
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Glass Showers
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
Rochester Glass Inc
Rochester, NY-
Arrives on Time
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Reliable Service
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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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Doors
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Double-Hung
Genesee Glass & Mirror Inc.
Rochester, NY-
Educational Website
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No-Hassle Pricing
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No-fee Quotes
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Arrives on Time
Services Offered
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Residential Windows
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Double-Hung
Graves Brothers Home Improvement
Rochester, NY-
Educational Website
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Dependable Service
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Free Quotes
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Goodman Glass & Mirror
Rochester, NY-
Free Quotes
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Educational Website
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Reliable Appointment Windows
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Price Transparency
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
Rose City Glass
Canandaigua, NY-
Good Customer Service
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Price Transparency
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No-fee Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Heavy Glass
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
Five Star Improvements
Rochester, NY-
Helps Educate Customers
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Free Quotes
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
Flower City Glass
Rochester, NY-
Excellent Customer Service
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Educational Website
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No-Hassle Pricing
Services Offered
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Residential Windows
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Architectural Glass
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Heavy Glass
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Flower City Glass
Webster, NY-
Price Transparency
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Heavy Glass
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
Flower City Glass
Geneva, NY-
Helps Educate Customers
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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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Architectural Glass
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Heavy Glass
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
American Custom Exteriors
Rochester, NY-
No-fee Quotes
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Arrives on Time
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Helps Educate Customers
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Good Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Double-Hung
Renewal By Andersen of Western New York
Rochester, NY-
Free Quotes
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No-Hassle Pricing
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Award-Winning
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Good Customer Service
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Marshall Exteriors, LLC
Newark, NY-
Educational Website
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Consistent Workmanship
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Good Customer Service
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Price Transparency
Services Offered
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Custom Windows
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Residential Windows
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Sliding Glass
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Double-Hung
Melnik & Sons Construction
Westgate, NY-
Price Transparency
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Reliable Service
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Free Quotes
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Good Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Commercial Windows
Pleasant Viewglass Inc
North Chili, NY-
No-fee Quotes
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Price Transparency
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Residential Windows
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Custom Windows
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Full-Service Installations
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Business Windows
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Double-Hung
Northside Company
Fairport, NY-
Educational Website
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No-Hassle Pricing
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Free Quotes
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Good Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Double-Hung
G&G Window Repair
Rush, NY-
Reliable Service
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No-fee Quotes
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No-Hassle Pricing
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Good Customer Service
Services Offered
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Custom Windows
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Fast Delivery
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Residential Windows
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Commercial Windows
Pella Windows & Doors of Rochester
Rochester, NY-
Educational Website
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Free Quotes
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Price Transparency
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Sliding Glass
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Business Windows
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Double-Hung
The Glass Gallery
NY-104, NY-
Free Quotes
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Price Transparency
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Excellent Customer Service
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Reliable Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Sliding Glass
Rochester Colonial Manufacturing
Rochester, NY-
Educational Website
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No-Hassle Pricing
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Free Quotes
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Locally Recognized for Quality
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
Pace Window & Door Co
Victor, NY-
Excellent Customer Service
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Price Transparency
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Educational Website
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Free Quotes
Services Offered
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Custom Window Designs
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Sliding Glass
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Bay Windows
Glass Doctor
Canandaigua, NY-
Excellent Customer Service
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Price Transparency
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Glass Showers
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Commercial Windows
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Double-Hung
First Choice Renovations, Inc
Rochester, NY-
No-fee Quotes
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Helps Educate Customers
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Price Transparency
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Energy-Efficient Options
Hawkeye Glass Block and Basement Solutions
Rochester, NY-
Educational Website
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Free Quotes
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Price Transparency
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Excellent Customer Service
Services Offered
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Custom Windows
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Business Windows
Vekton Corporation
Penfield, NY-
Good Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Double-Hung
Glass Elegance
East Rochester, NY-
Excellent Customer Service
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Free Quotes
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Price Transparency
Services Offered
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Custom Window Designs
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Business Windows
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Sliding Glass
How Installing Energy-Efficient Windows in Ontario Saves You Money
There are quite a few benefits of upgrading to energy-efficient windows. A few reasons you may want to consider making the switch are the following:
- Save money on electricity bills: Once you switch to energy-efficient windows, you can see a reduction in your bills by about 12% since you'll need less energy to heat or cool your home.
- Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Upgrading and repairing your windows is an important part of maintaining your property and its value.
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can lower your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Ontario
Windows come in varying shapes, styles and purposes, so costs and services will differ greatly based on your project. Below, we describe the typical cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
Generally, homeowners in Ontario can anticipate that most replacement window installations will range from $250 to $1,200, with the average cost at around $600. How much it will cost you varies depending on several factors, including the location of your home, material, size, number of windows, type and more.
Keep in mind that energy-efficient windows may come at a higher price tag, but Energy Star predicts the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. These savings vary based on your local climate, energy rates and individual home characteristics.
How much your window installation costs will also vary depending on the kind of window material you choose for the frames. Wood windows are usually the most expensive, although it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
In general, there are two types of window installation services you can get: full-frame and pocket installations.
A full-frame installation replaces the entire window, such as the windowsill, frame, trim and the window panes. As this kind of installation requires more time and labor, it will be more expensive than a pocket installation. A pocket installation involves replacing a window without removing the whole frame, which is generally cheaper than a full-frame installation.
If you're still debating which kind of installation you need, you can ask your installer and get their advice. The choice mostly depends on how old the frames are and if there's any damage.
Best Affordability
Window World
- Low prices relative to competitors
- EnergyStar Partner
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best Warranty
Universal Windows Direct
- Wide variety of products and services
- Lifetime warranty
- Manufactures products in-house
- Quality of service will depend on your area
How We Choose the Best Window Installers in Ontario
EcoWatch reviews are different from other reviews, as we examine these companies through a sustainability lens. Along with energy efficiency, we reviewed window companies all across the state and assigned rankings based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve Ontario so you can find the best window installation company near you.
Work Quality
When it comes to new windows, the quality and breadth of services often plays just as important of a role in overall efficiency and performance as the brand 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
Customer feedback is another very important review factor. If the majority of customers don't have positive feedback about their experience with a certain installer, it won't be featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs low when 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 to many homeowners. That's why window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for a while. Window installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Ontario, NY Window Replacement FAQs
How much does a window install cost?
The national average cost to replace a single window is around $600 but can range from $200 to $1,200, based on a few different factors. The price is usually 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 initially but can save you hundreds of dollars a year in energy bills.
Which type of window is the best?
A window's energy efficiency depends on a variety of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient since they are certified by the U.S. Department of Energy.
Can I install my own windows?
Although it is possible to install your own windows, doing so requires a lot of time and experience with home improvement projects. Hiring a professional can help guarantee that the job is done properly and that you can avoid spending the time and effort of doing it yourself.
When is the best time of year to replace windows?
Though you can install windows any time of year, warmer weather is usually better for replacing windows. In addition, it shouldn't be raining, because rain can make the installation harder.
How often do you need to replace windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Apart from that, if your windows have damage anywhere on them, or they have become difficult to operate, they may be in need of replacement.