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5 Best Window Companies in Buffalo (2026)

Ranked by real Google ratings and review volume · How we chose

Brad Smith
By Brad Smith, Home Services Expert · ✓ Updated · 7 min read

We compared 18 window companies in Buffalo on Google Maps · 5 listed · How we rank

New windows are a decision you live with every day, so the window companies in Buffalo worth a call are the ones with a record you can check. The businesses below hold more than 2,600 Google reviews between them, rated 4.6 to 4.9, but they aren't interchangeable: one sells full replacement systems, one specializes in glass block basement windows, and one leads with security doors.

Short answer: Renewal By Andersen of Western New York has the most reviews here, 4.8 stars from more than 1,100 Google reviews. Buffalo Glass Block (4.9) and Beejays Security Doors (4.9) are the specialist names. No prices are published here, so ask each company for a written estimate that lists every window and door.
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Replacement Windows, Glass Block and Doors Compared

# Business Rating Reviews Best for
1 Renewal By Andersen of Western New York 4.8 ★ 1,116 Full-home window and patio door replacement View ›
2 Buffalo Glass Block 4.9 ★ 483 Glass block and basement windows View ›
3 Beejays Security Doors 4.9 ★ 320 Security doors, with windows on the menu View ›
4 Express Windows Inc 4.7 ★ 392 Replacement windows, doors and vinyl siding View ›
5 West Shore Home 4.6 ★ 370 Replacement windows with a bathroom sideline View ›
5 Best Window Companies in Buffalo (2026)

The window companies, reviewed

Renewal By Andersen of Western New York logo
#1 Overall🕑 Open 6 days/wk

Renewal By Andersen of Western New York

4.81,116 Google reviews

Renewal By Andersen of Western New York sells and installs replacement windows and doors from an office on Cayuga Road. Its site lists awning, bow and bay, casement, double-hung, picture, sliding and specialty windows, plus entry, French and patio doors, with phone lines for both the Rochester and Buffalo areas. Google lists it as a window installation service and door supplier.

What people praise

  • Reviewers describe estimate visits where the salesperson explained the options and didn't pressure them
  • Install crews are called professional and considerate of the home
  • One reviewer replaced older vinyl windows and noticed better insulation and less noise
  • Patio doors and double-hung windows are both mentioned in reviews

Worth knowing

  • One reviewer had a rough first impression at the estimate stage before the measuring visit went well
Reputation scorecardrank in Buffalo
Rating4.8 / 5
Review volume1,116 · 97th
Confidencevery high
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown94% 5-star
✓ VerifiedSource: Google

Our take: The deepest review base here and a full-service replacement company. A good fit if you want a single contractor for a whole-house window project.

Website+1716-486-3001 Directions

303 Cayuga Rd, Buffalo, NY 14225

Buffalo Glass Block logo
#2🕑 Open 5 days/wk↩ Responds to reviews

Buffalo Glass Block

4.9483 Google reviews

Buffalo Glass Block, on Hinman Avenue, distributes and installs glass block basement windows, bathroom windows and assembled partition walls, according to its site. The site also lists vinyl replacement windows and says the company now does glass block repair. Google tags it as a window installation service, glass repair service and bathroom remodeler.

What people praise

  • Reviewers praise basement glass block installs with clear updates at each step
  • One reviewer had 70-year-old basement windows replaced and reported added ventilation and no leaks
  • Quick quote responses are mentioned
  • Repairs to cracked stone window sills are mentioned in one review

Worth knowing

  • Specialist focus on glass block and basement windows, with hours listed Monday to Friday only
Reputation scorecardrank in Buffalo
Rating4.9 / 5
Review volume483 · 92nd
Confidencehigh
Recency3 weeks ago
Info completenesssite · phone · hours
Rating breakdown95% 5-star
✓ VerifiedSource: Google

Our take: The pick for basement, bathroom and garage openings rather than a whole-house window swap. Its ratings and review count are strong for a specialist.

Website+1716-873-3553 Directions

520 Hinman Ave, Buffalo, NY 14216

Beejays Security Doors logo
#3🕑 Open 6 days/wk↩ Responds to reviews

Beejays Security Doors

4.9320 Google reviews

Beejays Security Doors runs a showroom on Broadway in Buffalo that sells steel security doors, storm doors and entry doors, along with window bars, gates and rolling steel doors. Its site also lists patio doors and windows, and says its products come with installation and repairs. Google lists it first as a window installation service, then as a door shop and door supplier.

What people praise

  • Reviewers praise the large selection of security doors and custom sizes
  • Installation is described as included in the price on one door purchase
  • Staff are called friendly and knowledgeable, without pressure
  • A customer reported getting a garage door opener sorted out there

Worth knowing

  • Reviews center on doors rather than windows
Reputation scorecardrank in Buffalo
Rating4.9 / 5
Review volume320 · 64th
Confidencehigh
Recency2 months ago
Info completenesssite · phone · hours
Rating breakdown96% 5-star
✓ VerifiedSource: Google

Our take: Better suited to doors and window bars than a window replacement. Worth a call if you want security doors alongside new windows.

Website+1716-894-8989 Directions

1588 Broadway, Buffalo, NY 14212

Express Windows Inc logo
#4🕑 Open 6 days/wk↩ Responds to reviews

Express Windows Inc

4.7392 Google reviews

Express Windows Inc works from Delaware Avenue and installs replacement windows, entry and patio doors, and vinyl siding. Its site says it has served Western New York since 2018 and offers a lifetime warranty on parts and labor. Google lists it as a window installation service, window supplier and siding contractor.

What people praise

  • Reviewers describe tidy crews that finished within the time window they were given
  • A customer who replaced 12 windows praised the install crew's attention to detail
  • Repeat customers are mentioned, including a third window project
  • Storm door and front door work also gets positive reviews

Worth knowing

  • Hours run Monday to Saturday, with a shorter Saturday and no Sunday hours
Reputation scorecardrank in Buffalo
Rating4.7 / 5
Review volume392 · 86th
Confidencehigh
Recency2 weeks ago
Info completenesssite · phone · hours
Rating breakdown90% 5-star
✓ VerifiedSource: Google

Our take: A solid choice for straightforward replacement-window jobs, with a record of repeat business in the reviews.

Website Book now+1716-602-8500 Directions

3495 Delaware Ave, Buffalo, NY 14217

West Shore Home logo
#5🕑 Open 7 days↩ Responds to reviews

West Shore Home

4.6370 Google reviews

West Shore Home has a Broadway address and is listed on Google as a window installation service, window supplier and door supplier. Reviewers describe replacement windows, including casements and a newly framed window, and some also describe a walk-in shower install.

What people praise

  • Reviewers praise salespeople who answered questions and explained what was needed
  • Install crews are described as polite, on time and tidy
  • One customer said they planned to buy a sliding glass door after the window job
  • Clear communication through the process is mentioned

Worth knowing

  • One reviewer said the windows and installation were fine but the exterior trim needed repeated rework
Reputation scorecardrank in Buffalo
Rating4.6 / 5
Review volume370 · 81st
Confidencehigh
Recency4 months ago
Info completenesssite · phone · hours
Rating breakdown86% 5-star
✓ VerifiedSource: Google

Our take: Mostly positive reviews for window replacement. If you hire them, ask how exterior trim is finished and who checks it.

Website+1716-403-2737 Directions

3898 Broadway, Buffalo, NY 14227

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How the scores work

Rating is the live Google star average. Review volume is how many customers have rated each business. Confidence weighs the rating by that volume, so a 4.8 from hundreds of people carries more weight than a 5.0 from a handful. Recency shows how recently customers are still leaving reviews.

What changes the price of new windows in Buffalo (2026)

No prices are published here. Window quotes depend on how many openings you are replacing, the frame material and style, whether the install is a full-frame job, and whether doors or trim are included. Glass block and security doors are priced by size and design, so expect those quotes to be itemized by opening.

Where to find these window companies

These businesses have addresses on Cayuga Road, Hinman Avenue, Broadway and Delaware Avenue in Buffalo. Renewal By Andersen of Western New York lists phone lines for both the Buffalo and Rochester areas. Searching for window companies near me? Each listing shows a phone number and directions.

What to ask a window company before you sign

  • Is the quote itemized by window and door, with product and style named?
  • Is each opening an insert replacement or a full-frame install?
  • How is exterior trim finished, and who inspects it?
  • What warranty applies to the windows and to the installation labor?
  • Do you offer glass block or egress options for basement windows?

Frequently asked questions

Who handles glass block basement windows around Buffalo?

Buffalo Glass Block specializes in them. Its site lists glass block basement windows, bathroom windows and partition walls, and reviewers describe basement installs and replacing decades-old basement windows.

What is the difference between a replacement window company and a security door shop?

Renewal By Andersen of Western New York and Express Windows Inc focus on replacement windows and doors. Beejays Security Doors sells steel security and storm doors and lists windows second, and its reviews are about doors.

Should I choose a full-frame or insert replacement?

It depends on the condition of the existing frames. One Renewal By Andersen reviewer had their two largest windows done with a full-frame process. Ask each company to explain which method it recommends for each opening and why.

Which of these companies also install doors?

Renewal By Andersen of Western New York, Express Windows Inc and Beejays Security Doors all list doors on their sites. Reviewers also mention a front door and storm doors from Express Windows Inc.

Where to start

Renewal By Andersen of Western New York has the largest review base for whole-house replacement, and Buffalo Glass Block is the specialist for basement windows. Whoever you call, get an itemized written quote that names the product, style and install method for each opening.

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