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Big L Windows & Doors

Buffalo Window Installers
Ranked #7 in Buffalo | Grade B+
4.70 (246 reviews)

Big L Windows & Doors

Showroom-driven window and door specialist serving Western New York with replacement solutions and coordination from selection through installation.

Why Homeowners Choose This Business

Customers highlight informed guidance during selection, clear communication, and clean job sites. Many reviews note efficient installers and follow-through to resolve punch-list items. The showroom and consultative approach help homeowners compare options before committing.

Service Area

Cheektowaga, Buffalo, and surrounding WNY communities.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Performs at or above the local average for Google rating.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Renovation Services
  Supplier
  Window Replacement
  Entry Door Replacement
  Installations
  Patio doors
  Sliding Glass Doors
  Front Door Installation
  Energy Efficient Windows
  Window and Door Showroom
  Door installation
  Replacement Windows For Homes
  New Construction Windows

Services include window replacement, entry and patio door replacement, product selection consultations, measurement and installation coordination, and supply for remodels, new construction, and light commercial projects.


Recent Reviews

4.70

(Based on 246 reviews)

Recent reviews consistently mention professional, efficient installers and clean workmanship. Customers appreciate knowledgeable sales guidance and help choosing door and window options. Several notes point to strong communication and follow-up when issues arise. Overall sentiment reflects satisfaction with both product quality and installation experience.

Google Review
Valerie Priester on Big L Windows & Doors

The patio door looks great. Our old door seemed fine until we discovered the sill plate had rotted, but this door blocks all noise. Our sales associate worked hard to meet all our requirements, and our installers completed the job with minimal mess, which was all cleaned up.

Google Review
Donna Klein on Big L Windows & Doors

The folks from Big L Window were incredible. The installers were so efficient, Professional and friendly. They did an amazing job. Everyone at the company couldn’t have been nicer. I’ve used them before and I will use them again.

Google Review
peter young on Big L Windows & Doors

Big L provided amazing customer service. From Travis who helped us decide which door unit to purchase to the installation team and financing, Big L is the best. Our new entry door transformed our home.

Google Review
Cynthia Carlino on Big L Windows & Doors

I highly recommend Big L Doors. They replaced our kitchen sliding glass doors onto our deck seven years ago and just recently our front entry door. Travis is very knowledgeable, gives great advice and recommendations. He is also extremely patient… I was very indecisive about my decisions even up until the day before installation. The installation team of Conner and his crew were outstanding. They did a phenomenal job from beginning to end.

Google Review
Mark Mariani on Big L Windows & Doors

New update: Craig and his team came up with a solution. They were able to make a trim piece that covers the white! Dave and his team came over today and everything looks great. I thank Big L for not forgetting us after they got their money. They worked hard to make things right. Thank you everyone for what you did. Update: after looking over the windows, many of the edges of the windows were not coated very well. I know this isnt big L's fault. I brought this to Craigs attention and they are going to fix the seams. Now the biggie. Be careful if you buy windows that aren't white. The window has a white edge around the outside of the windows. You need to put a brick mold around the edge of the window. I did not so they are going to try to come up with something to hide the white. Bought new Sunrise Renovations windows from Mike. Very informative on the products that they sell. I shopped for 6 months looking at so many different window manufacturers. I ended up with the Renovations because I felt you got the best bang for your buck. The Marvin fiberglass windows are a great product but just too rich for us to afford. The install crew showed up promptly on time. Dave was the lead installer and was extremely friendly but professional. The rest of the crew also was very courteous and hard workers. We has 14 double hung windows, a casement and a large bay window installed. We have the light oak on the inside and earth tone on the outside. Windows are beautiful! Going with the antique brass latches topped it off. They had all the windows in Monday and trimmed out the inside Tuesday. Everything went well and can't say enough on what a nice job they did. There was some small issues with the windows them selves. But when looking at all companies it seems like an industry wide problem. But easily fixed. I would highly recommend Big L as your choice for windows. In the pics the siding is off. That's because we are replacing all our siding next week so I told them to leave it off. Thank you so much for everything!

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Special Offers

Free Estimate

This business may offer free estimates for some services.


Frequently Asked Questions

They supply and coordinate replacement windows, entry doors, and patio doors for homeowners and builders. Signals also suggest support for remodels, custom homes, and light commercial needs.

Yes, their location on William St in Cheektowaga lists weekday and limited Saturday hours. It’s a good idea to call or check the website for current hours before visiting.

Online sources indicate free consultations are available. Homeowners often mention helpful guidance during selection and measurements prior to installation.

Public sources reference partnerships with recognized window and door manufacturers. Specific availability can vary, so confirm current lines directly with the showroom.

Reviews frequently cite punctual, efficient crews and clean job sites. Several customers also note good communication and follow-up to address any concerns.
 Verified Listing

Opening Hours


  • Monday 8:00 AM – 5:00 PM
  • Tuesday 8:00 AM – 5:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 5:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday 10:00 AM – 2:00 PM
  • Sunday Closed

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Business Details


Business Rating
4.70 (246 reviews) FeaturedPro Business
Address
2727 William St, Cheektowaga, NY 14227
Phone
Business Type
general_contractor

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