20 Best Window Companies in Amherst, NY (2025 Reviews)

Looking to replace your home's windows? We’ve got you covered in this guide to the top window installation companies.

We analyzed all the top-rated window companies in Amherst and selected the best 20 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated January 24, 2025

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Whether you're updating for aesthetics or have old windows, windows play a key role in conserving your home's energy. During the cold winter months, the last thing you want is your heat to leak out of your outdated windows.

Installing upgraded, efficient windows on your house can help you save money each month on your energy bills — and you can help the environment, too.

We’ve put together a list of the best installation companies to help you in your research, so you can not only take advantage of brand-new windows, but also save money on your electric bills.

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Amherst

The EcoWatch team evaluated dozens of providers that serve the Amherst area to find the top window installation companies by our standards. We assessed the companies based on their energy-efficient offerings, local experience, customer service, coverage area, price and more.

Window World logo
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation business for about 27 years. Its reputation is backed by hundreds of positive reviews from customers online.

You may want to consider going with 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 Windows

Window World’s commitment to sustainability shows in its energy-efficient window offerings. 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 Amherst?

Window World doesn’t have any pricing information listed on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on the cost, you can ask for a quote from the company.

Renewal by Andersen logo
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for about 27 years. Its reputation is backed by hundreds of positive reviews from customers online.

You may want to consider going with Andersen if you're looking for a installer 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 Windows

Renewal by Andersen’s commitment to sustainability shows in its energy-efficient window offerings. 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 Amherst?

Andersen doesn’t have any pricing information listed 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 detailed information on the cost, you can ask for a quote from the company.

We aim to be unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.

More Window Companies in Amherst

Becker Glass Block

Spencerport, NY
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: http://beckerglassblock.com/
Address: 664 Whittier Rd, Spencerport, NY 14559
Phone: (585) 356-4047

Medina Windows

Lyndonville, NY
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Vinyl Frames
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Custom Window Designs

Website: http://medinawindow.co/
Address: 10708 Millers Rd, Lyndonville, NY 14098
Phone: (585) 765-9811

Renewal By Andersen of Western New York

Depew, NY
4.8
★★★★★
  • Pros icon Limited lifetime warranty
  • Pros icon Free in-home or virtual consultation
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon No-interest financing

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Glass Doors

Website: http://www.rbawny.com/
Address: 23 Dick Rd, Depew, NY 14043
Phone: (716) 486-3001

Braymiller Builders of WNY Inc.

Hamburg, NY
4.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Vinyl Frames

Website: http://www.braymillerbuilders.com/
Address: 207 Lake St, Hamburg, NY 14075
Phone: (716) 646-5300

Express Windows

Buffalo, NY
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors

Website: https://expresswindowsinc.com/
Address: 3495 Delaware Ave, Buffalo, NY 14217
Phone: (716) 602-8500

Hawkeye Glass Block and Basement Solutions

Rochester, NY
4.7
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: http://www.hawkeyebasementsolutions.com/
Address: 906 Howard Rd, Rochester, NY 14624
Phone: (585) 576-8787

Rochester Colonial Manufacturing

Rochester, NY
4.7
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Fiberglass Frames
  • Service icon Window Replacement/Installation

Website: http://www.rochestercolonial.com/
Address: 1794 Lyell Ave, Rochester, NY 14606
Phone: (585) 254-8191

Genesee Glass & Mirror Inc.

Rochester, NY
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Repair
  • Service icon Glass Showers
  • Service icon Custom Glass
  • Service icon Window Replacement/Installation
  • Service icon Mirrors

Website: https://www.wefixglass.com/
Address: 90 Bennington Dr, Rochester, NY 14616
Phone: (585) 621-3580

Matthews & Fields Lumber

Rochester, NY
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: http://mflumber.com/
Address: 120 Stonewood Ave, Rochester, NY 14616
Phone: (585) 663-0430

MIRIS Building Supplies

North Tonawanda, NY
4.6
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Skylights

Website: http://www.mirisbuildingsupplies.com/
Address: 391 River Rd, North Tonawanda, NY 14120
Phone: (716) 694-9069

Pella Windows & Doors of Buffalo

Buffalo, NY
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Wood Frames
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Custom Window Designs
  • Service icon Window Replacement/Installation

Website: https://www.pellabranch.com/buffalo/showrooms/buffalo-ny/
Address: 2410 Walden Ave, Buffalo, NY 14225
Phone: (716) 681-2000

Big L Windows & Doors

Cheektowaga, NY
4.6
★★★★★
  • Pros icon No-interest financing
  • Pros icon Free in-home or virtual consultation
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Timely Service
  • Pros icon Limited lifetime warranty

Services Offered

  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation

Website: https://biglwindows.com/
Address: 2727 William St, Cheektowaga, NY 14227
Phone: (716) 895-8484

Window Factory Outlet

Buffalo, NY
4.5
★★★★★
  • Pros icon Timely Service
  • Pros icon Lifetime residential warranty
  • Pros icon No-interest financing
  • Pros icon Good Customer Service
  • Pros icon Free in-home consultations
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames

Website: http://windowfactoryoutlet.com/
Address: 815 Smith St, Buffalo, NY 14206
Phone: (716) 486-2000

Comfort Windows & Doors

Rochester, NY
4.4
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Glass Showers
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options
  • Service icon Wood Frames
  • Service icon Glass Doors

Website: https://www.comfortwindows.com/locations/rochester
Address: 1380 Scottsville Rd, Rochester, NY 14624
Phone: (585) 235-7839

Advance Glass

Williamsville, NY
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Custom Glass
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Energy-Efficient Options

Website: https://advanceglass.com/
Address: 5585 Harris Hill Rd, Williamsville, NY 14221
Phone: (716) 741-9030

Stanek Windows

West Seneca, NY
4.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames

Website: https://www.stanekwindows.com/
Address: 2620 N America Dr, West Seneca, NY 14224
Phone: (716) 608-3244

Window World of Buffalo

Depew, NY
3.6
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://www.windowworldofbuffalo.com/
Address: 4444 Broadway, Depew, NY 14043
Phone: (716) 656-0100

Airtite Wholesale Building Materials

Clarence Center, NY
3.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Double-Hung

Website: http://www.airtitewholesale.com/
Address: 8645 Roll Rd, Clarence Center, NY 14032
Phone: (716) 741-2127

Tomson Window

Niagara Falls, NY
3.3
★★★★★
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Double-Hung
  • Service icon Bay Windows
  • Service icon Glass Doors

Website: http://www.tomsonwindow.com/
Address: 4829 Tomson Ave, Niagara Falls, NY 14304
Phone: (716) 236-8487

AVA Roofing & Siding

North Tonawanda, NY
3.3
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Energy-Efficient Options

Website: https://www.avaroofing.com/
Address: 672 Niagara Falls Blvd, North Tonawanda, NY 14120
Phone: (716) 226-0661
Amherst Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Amherst, NY using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

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 Amherst Saves You Money

There are quite a few perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch are the following:

  • Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading due to their ability to filter out harmful UV rays.
  • Save money on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Upgrading to energy-efficient models can help lower how much you have to pay, therefore saving you about 12% more on your bills.
  • Reduce your carbon footprint: In Amherst, you can reduce your indirect greenhouse gas emissions by about 65 pounds per year after you switch to energy-efficient windows.
  • Protect your investment: When you have an older home, your windows could also be outdated or damaged. Upgrading your windows is an important part of maintaining your property and its real estate value.

Estimated Cost of Window Replacement in Amherst

Each window replacement company provides various services and has varying costs depending on several factors.

How Much Do New Windows Cost?

Typically, Amherst homeowners can anticipate their window replacements to range from $250 to $1,200. The most common installations sit at about $600. These numbers vary based on the specifics of your installation, such as number of windows, type, material, the location of your home, size and more.

Keep in mind that energy-efficient windows may cost more, but Energy Star estimates the upgrade will save you between $101 and $583 per year when installing single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.

Another factor that influences the overall cost is the material of the frame you choose. Aluminum frames are usually the least expensive and are sturdy and relatively maintenance-free, but they provide poor insulation. On the other hand, wood frames are the most expensive, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

When it comes to window replacements, there are generally two kinds that your provider will offer: full-frame and pocket installations.

Full-frame installations are usually done when you want to change the style of your windows or your window has significant deterioration. With this service, your professionals will replace the total window, including the sill, frame and trim. Pocket installations (or retrofits) involve installing a new window within the existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.

If you’re hiring a reputable window installation company, your company can advise you on the best type for your project. In Amherst, the choice will mostly depend on the efficiency of your home and the age and condition of your existing frames.

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Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Amherst

In our search to find the most reliable, eco-friendly window installers in Amherst, the EcoWatch Reviews team landed on the above companies as the top window installation companies in the city. We’ve decided to review the top window installers in Amherst mostly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

Because this is a guide for Amherst, we only included companies that serve the city. There are other reputable providers that didn’t make our list because they wouldn’t be able to serve homeowners in Amherst.

Work Quality

We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer featured on this list to ensure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have positive feedback about their experience with a certain company, you won’t see it featured on EcoWatch.

Cost

This one is a give-and-take: similar to most services, cheap window companies won’t always provide the highest quality service. On the other hand, we want to make sure we’re highlighting companies that offer a spectrum of price and financing options so they’re accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. That’s why window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Because of Amherst’s climate, homeowners need to be wary of water damage, low efficiency and rot. We factored in local experience to reflect the ability of Amherst window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.

Amherst, NY Window Replacement FAQs

What is the typical cost to install new windows in a home?

The national average cost of replacing a single window is about $600 but can range between $200 and $1,200, depending on several factors. The price is usually influenced by the type and material of the window, the location of your property and the size of the window. Also, bear in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.

What are the most common types of replacement windows?

The most common kinds of windows for homes include: picture windows, casement windows, double-hung and single-hung windows, slider windows, awning windows, transom windows and bay windows.

Can you replace your own windows?

While you can install your own windows, doing so requires a lot of time and handiness. Hiring a professional can help ensure that the installation is done properly and that you won’t have to spend the time and effort to do it yourself.

When is the best time of year to replace windows?

Replacement windows can be installed any time of the year, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into the home, so the temperature outside isn’t necessarily a big factor. Most importantly, the weather should be dry.