20 Best Window Companies in Buffalo, NY (2023 Reviews)
If you're looking to get new windows, our guide to the top window installation companies can help.
We analyzed all the top-rated window companies in Buffalo and selected the best 20 based on:
-
Customer reviews
-
Window installation expertise
-
Popularity with home-owners like you
Please enter a valid 5-digit zip code!

Updated September 15, 2023
Why you can trust EcoWatch
A review of the top window installation companies in Buffalo may not seem like the most riveting article on EcoWatch, but trust us, windows impact your life more than you might think. When it's the middle of winter, your outdated and leaky windows could be making your home harder to heat and more uncomfortable for you.
Replacement windows improve your home's insulation, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
So if you're building a new home, renovating or changing out old windows in Buffalo, you've found the best place to get started.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Buffalo
The EcoWatch Reviews team examined dozens of installers across the country to find the top window installation companies for our readers. We assessed the installers based on their energy-efficient offerings, price, local experience, coverage area, customer service and more.

Window World
-
EnergyStar Partner
-
Large serice area
-
Low prices relative to competitors
-
Great industry reputation
-
Lifetime warranty
-
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 provider has 27 years of experience in the window installation business, and it has become one of the most respected companies in the business. The provider has many positive reviews from customers on online review websites.
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, this may be the right company for you.
Energy Efficiency of Window World WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Buffalo?Window World doesn’t have any cost information available on its website, but it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can ask for a quote from the company.

Renewal by Andersen
-
Great industry reputation
-
Award-winning company
-
Member of US Green Building Council
-
Manufactures products in-house
-
No lifetime warranty
-
More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation business, and it has become one of the most respected companies in the business. The provider has many positive reviews from customers on online review websites.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, this may be the right company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you 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 Buffalo?Andersen doesn’t have any cost information available on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on the cost, you can ask for a quote from the company.

Universal Windows Direct
-
Makes charitable contributions
-
Manufactures products in-house
-
Wide variety of products and services
-
Lifetime warranty
-
Limited service area
-
Some installations carried out by third-party contractors
-
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 over 20 years of experience in the industry, and it currently serves 27 states nationwide. The provider has hundreds of positive reviews from customers on online 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 caters to eco-conscious consumers by providing 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 does not mention prices 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 request a free quote on its website for more information about pricing.
One thing to note is that the companies in this section are national, which means the quality of customer service may vary depending on your local crew. We have tried to be unbiased and transparent by mentioning pros and cons for each provider.
More Window Companies in Buffalo
Renewal By Andersen of Western New York
Depew, NY-
Educational Website
-
Free assessment
-
Price Transparency
-
Good Customer Service
Services Offered
-
Double-Hung
-
Custom Window Designs
-
Energy-Efficient Options
-
Bay Windows
-
Sliding Glass
-
Window Replacement
-
Residential Windows
Window World of Buffalo
Depew, NY-
Free assessment
-
Price Transparency
-
Educational Website
-
Good Customer Service
Services Offered
-
Energy-Efficient Options
-
Custom Window Designs
-
Double-Hung
-
Window Replacement
-
Residential Windows
-
Bay Windows
TBrothers Renovations
Tonawanda, NY-
Price Transparency
-
Timely Service
-
Good Customer Service
-
Educational Website
Services Offered
-
Custom Window Designs
-
Window Replacement
-
Glass Showers
-
Fast Delivery
-
Residential Windows
Stanek Windows
West Seneca, NY-
Good Customer Service
-
Educational Website
-
Free assessment
-
Price Transparency
Services Offered
-
Custom Window Designs
-
Double-Hung
-
Bay Windows
-
Sliding Glass
-
Energy-Efficient Options
-
Window Replacement
-
Residential Windows
-
Commercial Windows
Wonder Windows Buffalo
Buffalo, NY-
Free assessment
-
Price Transparency
-
Good Customer Service
-
Educational Website
Services Offered
-
Residential Windows
-
Fast Delivery
-
Commercial Windows
-
Custom Window Designs
-
Bay Windows
-
Double-Hung
-
Window Replacement
-
Sliding Glass
-
Glass Showers
Comfort Windows & Doors
Tonawanda, NY-
Good Customer Service
-
Educational Website
-
Free assessment
-
Price Transparency
Services Offered
-
Bay Windows
-
Commercial Windows
-
Aluminum Window Frames
-
Sliding Glass
-
Double-Hung
-
Custom Window Designs
-
Glass Showers
-
Window Replacement
-
Residential Windows
-
Full-Service Installations
Big L Windows & Doors
Cheektowaga, NY-
Timely Service
-
Educational Website
-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Window Replacement
-
Residential Windows
-
Bay Windows
-
Commercial Windows
-
Custom Window Designs
Window Factory Outlet
Buffalo, NY-
Timely Service
-
Price Transparency
-
Free assessment
-
Good Customer Service
Services Offered
-
Custom Window Designs
-
Window Replacement
-
Double-Hung
-
Sliding Glass
-
Residential Windows
Buffalo Glass Block
Buffalo, NY-
Educational Website
Services Offered
-
Glass Showers
-
Commercial Windows
-
Custom Window Designs
-
Window Replacement
-
Residential Windows
Express Windows
Buffalo, NY-
Free assessment
-
Educational Website
-
Price Transparency
Services Offered
-
Custom Window Designs
-
Window Replacement
-
Residential Windows
American Glass Block
Buffalo, NY-
Timely Service
-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Fast Delivery
-
Aluminum Window Frames
-
Glass Showers
-
Window Replacement
-
Custom Window Designs
Home Services at The Home Depot
Amherst, NY-
Price Transparency
-
Educational Website
-
Good Customer Service
-
Free assessment
Services Offered
-
Residential Windows
-
Window Replacement
-
Commercial Windows
-
Custom Window Designs
-
Stained Glass
-
Glass Showers
-
Fast Delivery
Gutter People by Highland
Depew, NY-
Free assessment
-
Good Customer Service
-
Price Transparency
-
Timely Service
-
Educational Website
Services Offered
-
Residential Windows
-
Custom Window Designs
-
Commercial Windows
-
Window Replacement
-
Aluminum Window Frames
-
Fast Delivery
Tschetter's Complete Home
West Seneca, NY-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Window Replacement
-
Energy-Efficient Options
-
Residential Windows
-
Commercial Windows
-
Custom Window Designs
Braymiller Builders of WNY Inc.
Hamburg, NY-
Free assessment
-
Educational Website
-
Price Transparency
-
Good Customer Service
Services Offered
-
Custom Window Designs
-
Glass Showers
-
Sliding Glass
-
Window Replacement
-
Residential Windows
Modern Window of NY
Orchard Park, NY-
Educational Website
-
Free assessment
-
Good Customer Service
-
Price Transparency
Services Offered
-
Energy-Efficient Options
-
Custom Window Designs
-
Window Replacement
-
Residential Windows
Moderncraft Home Improvement
Lancaster, NY-
Price Transparency
Services Offered
-
Residential Windows
-
Window Replacement
-
Sliding Glass
-
Custom Window Designs
M & M Home Center
West Seneca, NY-
Good Customer Service
Services Offered
-
Custom Window Designs
-
Window Replacement
-
Glass Showers
-
Residential Windows
Nexgen Windows & Doors LLC
East Amherst, NY-
Educational Website
-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Window Replacement
-
Custom Window Designs
-
Bay Windows
-
Sliding Glass
-
Double-Hung
-
Residential Windows
-
Energy-Efficient Options
Tomson Window
Niagara Falls, NY-
Free assessment
-
Good Customer Service
-
Price Transparency
-
Educational Website
Services Offered
-
Window Replacement
-
Double-Hung
-
Bay Windows
-
Custom Window Designs
-
Residential Windows
-
Sliding Glass
Calculate how much you can expect to pay for window installation and replacement in Buffalo, NY using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Buffalo Saves You Money
When you upgrade to energy-efficient windows, you may see several perks, such as:
- Better temperature control in your home: When you live in a place like Buffalo where the summers can be pretty warm, you usually have to rely on your air conditioner to keep your house cool. Energy-efficient windows can cut back on how much cool air is lost through your windows when cooling your home.
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% when you install Energy Star certified windows. In Buffalo, that's about 65 pounds per year on average.
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes usually have windows that are outdated, drafty or maybe even damaged in some way. Updating your windows could help increase the value of your home if you decide to sell.
- Save on power bills: The Department of Energy estimates that heat gained or lost via windows accounts for around 25-30% of energy use in your home. Upgrading to energy-efficient windows can help lower that number, which helps you save some money on your bills.
Estimated Cost of Window Replacement in Buffalo
When considering window installation, each company provides varying services and prices. Let's look at some typical costs and services.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range anywhere from $200 to $1,200. But prices vary remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door replacements, which carry a higher price tag.
Whether or not you want energy-efficient windows is another factor that will influence the cost. These will usually cost more than other windows, but on the other hand, you can save about $368 a year on your energy bills in Buffalo.
Something else that influences the overall cost is the material of the frame you choose. Aluminum frames are usually the least pricey and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames cost the most because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.
What Services do Window Installers Offer?
When it comes to window installations, in general there are two kinds that your provider will offer: full-frame and pocket installations.
Full-frame installations are usually done when you want a new style or your window has significant deterioration. With this service, your professionals will replace the entire window, including the trim, frame and sill. A pocket installation means replacing a window without taking out the entire frame, which is generally less expensive than a full-frame installation.
Your window installation company will be able to help you decide what's best for your needs. In Buffalo, the decision will mostly depend on the age of your home and if there's any moisture damage. Wood can decay if not properly maintained over the years, so it's a good idea to have a professional assess your frames and window sills.
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 Buffalo
The EcoWatch Reviews team is different from other reviewers because we look at these companies through a sustainability lens. Along with energy efficiency, we assessed window companies all across the state and assigned rankings using the following methodology:
Service Area
Because this is a guide for Buffalo, we paid more attention to 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
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each company in our guide to make sure its contractors are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If the majority of customers don't have good feedback about their experience with a certain installer, you won't see it featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers try to keep costs as low as possible. When analyzing the prices of providers, 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. For that reason, window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for quite some time. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Buffalo, NY Window Replacement FAQs
How much does window installation cost?
The average cost to replace a window ranges between $450 and $650. There are several factors that influence the cost, including the materials used in designing the windows, styles and sizes of windows, the number of windows, your property's location, local labor costs and how energy-efficient the windows are.
What are the most common types of replacement windows?
There are various kinds of windows you can get for your home, such as bay windows, casement windows, double-hung and single-hung windows, slider windows, picture windows, transom windows and awning windows.
What services do window replacement companies provide?
Window installation professionals will do the entire process — from replacing old windows with brand new ones to cleaning up afterward. Additionally, many companies offer window manufacturing, customization and repairs.
How long does it take to install windows?
Because the average installation time of a window is 30 minutes, around 16 windows can be installed during an 8-hour work day.
What time of year is the best time to replace my windows?
Even though you can install windows any time of year, warmer weather is usually better for installing replacement windows. In addition, it shouldn't be raining, as rain can make the installation more difficult.