29 Best Window Replacement Companies in Buffalo, NY (Mar 2023)
Window Companies Near Me
Looking to improve your house's appearance? The best window replacement companies can help.
We analyzed all the top window installers in Buffalo and selected the top 29 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
Whether you're updating for aesthetics or have old windows, windows play a key role in conserving your home's energy. When it's the middle of winter, your outdated and leaky windows could be making your home harder to heat and more uncomfortable for you.
Luckily, helping you save money with more efficient windows also helps our goals of reducing energy usage for the environment.
We've made this guide on the best installation companies to help you in your research, so you can not only enjoy brand new windows, but also save money on your electric bills.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Award-winning company
- More expensive than competition
Best Affordability
Window World
- Lifetime warranty
- EnergyStar Partner
- Great industry reputation
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Makes charitable contributions
- Wide variety of products and services
- Manufactures products in-house
- Quality of service will depend on your area
Best Window Replacement Companies in Buffalo
The EcoWatch Reviews team assessed many window installation companies across Buffalo to narrow our list down to the best ones. The providers reviewed in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service and more.

Renewal by Andersen
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Manufactures products in-house
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Great industry reputation
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Award-winning company
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More expensive than competition
Renewal by Andersen has the best availability in Buffalo. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window installation business. The provider has plenty of 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 WindowsThere are a wide range of window types available from Renewal by Andersen, 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 Buffalo?Though pricing 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. For more accurate information on pricing, you can receive a quote from the company.

Window World
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Lifetime warranty
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EnergyStar Partner
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Great industry reputation
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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. This company has been operating since 1995 and currently services 200 locations nationwide. The provider has a lot of glowing reviews from customers online.
You may want to consider opting for 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 variety of window types available from Window World, 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 Buffalo?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to get a free quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Wide variety of products and services
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Manufactures products in-house
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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 installation sector. Its reputation is backed by hundreds of positive reviews on customer review websites.
It has established itself as a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct's commitment to sustainability shows in its energy-efficient window offerings. 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 Buffalo?Universal doesn't have any prices available 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. You can inquire about a free quote on its website for more information about the cost.
We aim to stay unbiased and transparent by listing pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.
More Window Replacement Companies in Buffalo
Comfort Windows & Doors
Tonawanda, NY-
Free Quotes
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Excellent Customer Service
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Locally Recognized for Quality
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Helps Educate Customers
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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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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Business Windows
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Double-Hung
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Sliding Glass
Graves Brothers Home Improvement
Williamsville, NY-
Arrives on Time
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Reliable Service
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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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Business Windows
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Double-Hung
Wonder Windows Buffalo
Buffalo, NY-
Price Transparency
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No-fee Quotes
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Arrives on Time
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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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Double-Hung
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Sliding Glass
Twin City Glass
North Tonawanda, NY-
Price Transparency
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Arrives on Time
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Helps Educate Customers
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No-fee Quotes
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
The Window Source of WNY
Buffalo, NY-
Good Customer Service
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No-fee Quotes
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Reliable Appointment Windows
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No-Hassle Pricing
Services Offered
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Custom Windows
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Architectural Glass
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Sliding Glass
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Double-Hung
Window Factory Outlet
Buffalo, NY-
Free Quotes
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Price Transparency
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Timely Service
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Reliable Service
Services Offered
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Residential Windows
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Architectural Glass
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Custom Windows
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Double-Hung
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Sliding Glass
Stanek Windows
West Seneca, NY-
No-Hassle Pricing
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No-fee Quotes
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Consistent Workmanship
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Excellent Customer Service
Services Offered
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Energy-Efficient Options
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
A-24 Hour Door National Inc.
Buffalo, NY-
Good Customer Service
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Reliable Appointment Windows
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Reliable Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Business Windows
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Sliding Glass
Granto Glass Block
North Tonawanda, NY-
Price Transparency
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Good Customer Service
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Supports Charities
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Free Quotes
Services Offered
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Full-Service Installations
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Custom Windows
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Residential Windows
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Business Windows
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Fast Delivery
William C Rott & Son Inc
Tonawanda, NY-
Excellent Customer Service
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No-fee Quotes
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Dependable Service
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Educational Website
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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Commercial Windows
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Double-Hung
Renewal By Andersen of Western New York
Depew, NY-
Award-Winning
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Free Quotes
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Excellent Customer Service
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Helps Educate Customers
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
Stockmohr Co Inc
Clarence Center, NY-
Helps Educate Customers
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Price Transparency
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Free Quotes
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Excellent Customer Service
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Nexgen Windows & Doors LLC
East Amherst, NY-
Good Customer Service
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Award-Winning
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No-fee Quotes
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Educational Website
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Aurora Door & Window Co.
West Falls, NY-
Price Transparency
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No-fee Quotes
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Excellent Customer Service
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Educational Website
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Glass Replacement Buffalo, NY | Mirror Glass & Shower Doors
Hamburg, NY-
Excellent Customer Service
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Free Quotes
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Price Transparency
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Educational Website
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Paramount Windows & Doors
East Aurora, NY-
Excellent Customer Service
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Educational Website
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Free Quotes
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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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Full-Service Installations
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Business Windows
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Double-Hung
Big L Windows & Doors
Cheektowaga, NY-
No-Hassle Pricing
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Reliable Appointment Windows
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Custom Window Designs
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Commercial Windows
Home Services at The Home Depot
Lockport, NY-
Excellent Customer Service
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Helps Educate Customers
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Reliable Service
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No-fee Quotes
Services Offered
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Custom Windows
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Fast Delivery
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Residential Windows
Window Specialists Inc
Lancaster, NY-
Educational Website
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No-fee Quotes
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Excellent Customer Service
Services Offered
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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
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Sliding Glass
Pella Windows & Doors of Buffalo
Buffalo, NY-
Excellent Customer Service
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Educational Website
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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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Sliding Glass
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Commercial Windows
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Double-Hung
Aberdeen Plate Glass
Buffalo, NY-
Helps Educate Customers
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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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Residential Windows
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Commercial Windows
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Sliding Glass
David's Windows & Doors
Buffalo, NY-
Good Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Dependable Service
Services Offered
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Custom Windows
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Residential Windows
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Full-Service Installations
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Commercial Windows
Braymiller Builders of WNY Inc.
Hamburg, NY-
Helps Educate Customers
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Price Transparency
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Excellent Customer Service
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Award-Winning
Services Offered
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Custom Window Designs
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Sliding Glass
American Glass Block
Buffalo, NY-
No-fee Quotes
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Timely Service
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Reliable Service
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Good Customer Service
Services Offered
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Custom Windows
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Aluminum Window Frames
Glass America
Buffalo, NY-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Award-Winning
Services Offered
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Custom Windows
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Commercial Windows
Glass America
Elma, NY-
Free Quotes
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No-Hassle Pricing
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Locally Recognized for Quality
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Educational Website
Services Offered
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Custom Windows
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Business Windows
Home Suite Construction
Akron, NY-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Educational Website
Services Offered
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Custom Window Designs
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Full-Service Installations
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Double-Hung
Modern Window of NY, Inc.
Orchard Park, NY-
Educational Website
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Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Tomson Window
Niagara Falls, NY-
Price Transparency
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Helps Educate Customers
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Good Customer Service
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Free Quotes
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
How Installing Energy-Efficient Windows in Buffalo Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on energy bills. Here are more ways upgrading your windows could help you:
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
- Decrease your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by about 65 pounds.
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its value, particularly if your home is on the older side.
- Save money on electricity bills: Once you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you'll use less energy to heat or cool your home.
Estimated Cost of Window Replacement in Buffalo
Let's go over the cost of replacing your windows and the kinds of services you may need for your home.
How Much Do New Windows Cost?
Typically, homeowners in Buffalo can expect that most window installations will cost between $250 and $1,200, with the average cost at about $600. But costs vary remarkably based 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 installations and replacements, which will make your project cost more.
It's important to note that windows with the best efficiency may cost more upfront but can save you hundreds of dollars by lowering your energy bills. Investing in Energy Star certified windows can save Buffalo homeowners $368+ a year when replacing single-pane windows.
The cost of your window installation will also vary based on the kind of material you choose for the frames. Wood windows are typically 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?
When considering window installations, there are generally two types that your provider will have: full-frame and pocket installations.
Full-frame installations are necessary when you want to change the style of your windows or your window has a lot of rot. With this service, your professionals will replace the total window, including the sill, frame and trim. Pocket installations are on the simpler end and won't cost as much because they involve simply replacing the window within its existing frame. But if the frame has any damage, you may have to get a full-frame installation instead.
If you're unsure which kind of window installation service you need, your installer should be able to assist you. In general, the choice is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Award-winning company
- More expensive than competition
Best Affordability
Window World
- Lifetime warranty
- EnergyStar Partner
- Great industry reputation
- Quality of service will depend on your area
Best Warranty
Universal Windows Direct
- Makes charitable contributions
- Wide variety of products and services
- Manufactures products in-house
- Quality of service will depend on your area
How We Choose the Best Window Installers in Buffalo
EcoWatch is different from most reviewers because we assess these companies through a sustainability lens. Along with energy efficiency, we assessed several window installers in Buffalo and assigned rankings using the following methodology:
Service Area
Because this is a guide for Buffalo, we only included companies that cover the city. There are certainly reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Buffalo.
Work Quality
When installing new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the brand of window you choose. 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 customer feedback to find the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including warranty, cost, quality of parts, professionalism, quality of installation and more.
Cost
This one is a give-and-take: as with other services, cheap window companies may not provide the most quality service. On the other hand, we want to make sure we're highlighting companies that provide a spectrum of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installers 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.
Buffalo, NY Window Replacement FAQs
How much should window installation cost?
The national average cost to replace one window is about $600 but can range between $200 and $1,200, depending on a few different factors. The price is usually dependent on the type and material of the window, the size of the window and the location of your property. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What kind of window is the best for energy efficiency?
A window's energy efficiency is affected 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?
Unless you have home repair skills and have the time needed to replace your own windows, we recommend hiring a professional installer. The window installation process is quite involved and can take anywhere from four to six hours for one window. Although it's tempting to try to do it yourself to save money, hiring a company is a faster, more efficient and much safer option.
How long does it typically take to install windows?
Each window takes around 30 minutes to install based on the type of window. However, the window installation can take two days or more if you need to have a lot of windows installed.
When is it time to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Other than that, if your windows have damage anywhere on them, or they have become difficult to operate, they may need to be replaced.