Schedule a Free Consultation with Big L

EXPERT INSTALLATION
DONE RIGHT THE FIRST TIME

Whether you’re remodeling, building a new custom home or considering replacement windows and doors, our friendly Big L Windows & Doors staff members will be happy to help you through the entire process. With Big L, you’ll get:

  • A no-obligation consultation where we’ll listen to your needs, budget and timeline
  • Friendly, straightforward, educated advice on window replacement
  • A full proposal that details the products we discuss and costs
  • Meticulous, efficient, professional installation from our in-house team

We’ve been doing business in western New York for more than 40 years, so we know Buffalo’s local building codes and which products perform best in our climate. As a local, family-owned enterprise, we consider our customers to be our neighbors. Financing is available if qualified. We look forward to connecting with you!

The installation process will go like this:

  • A Big L representative will provide your free in-home (or virtual) consultation.
  • We’ll provide a comprehensive quote detailing your project, and place your order upon your approval.
  • Big L will call to schedule a convenient installation date.
  • Trained installers will remove your old windows and install your new windows, making sure they are properly leveled, sealed and insulated.
  • Installers will clean up the job site and show you how your new windows function.
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BENEFITS OF BIG L

From quality products to easy financing, expert installation and a worry-free guarantee, Big L Windows and Doors offers everything you need to see your replacement window or door project through to completion.

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    TOTAL TRUST GUARANTEE

    We promise you’ll be completely satisfied with the work Big L provides. Our guarantee covers labor and follow-up evaluations that manufacturer warranties don’t.

  • The Customer signing the documents in with Big L windows staff.

    HASSLE-FREE FINANCING

    Realize your dreams faster with easy financing through Big L. Choose from great financing options such as 1-year “same as cash” no interest payments.

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    PATIO DOOR REPLACEMENT

    Looking to feel more connected to nature? Patio doors can open up a closed space and bring in beautiful views like little else. Today’s models offer better security and energy efficiency.

REVIEWS FROM BIG L CUSTOMERS

At Big L Windows & Doors, we’re grateful for the customers who have put their trust in us and let us transform their homes with new windows and doors. Here are just a few of the customers who have taken the time to let us know how happy they are with Big L’s work.

Big L did a fast, efficient, and amazing job on our windows installation. We are completely satisfied with the job the crew did for us, plus they cleaned up beautifully. I’ll be sure to recommend them to friends and family

I had a giant bay window replaced in the Fall of 2020. I dealt with Xander for the quote. He was on time, friendly and knowledgeable. When the time came to install the window, they could not reuse the trim that they took off of the window so they went and purchased the trim I already had and installed that free of cost to me. I would highly recommend.

Our Big L windows are still perfectly sealed and operational after 25 years!

Big L replaced my front door and a large bay window.  The sales rep presented several options in a variety of price ranges with detailed quotes for each and gave us a veterans discount. The installation team was the best. Polite and professional, they did great quality work and they did it in a timely fashion. We had one problem and Big L expedited the replacement, voluntarily compensated us for our trouble and brought additional manpower to make sure the job was completed in one day. I like this company and will use them again in the future.

Thank you for installing the four windows for us yesterday. Everything from start to finish was truly professional! Will definitely use Big L again in the future!

Our entire home was destroyed by fire and We decided to rebuild.  We chose a contractor who used Big L for all of our windows and doors.  Not once have I regretted using Big L. Their post sales service has been outstanding. there were a couple of small issues and the team was prompt, always friendly and courteous whenever they came to the house.  Big L simply does it the right way. And they've done it every time. Thank you Big L!!!! 

4 EASY STEPS TO NEW WINDOWS & DOORS

With Big L, we want you to feel comfortable and confident about the process of your window or door project.

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    FREE CONSULTATION

    We’ll set up an appointment to discuss your project needs, gather necessary details, take measurements and discuss product options with you.

  • installation photo

    PROJECT QUOTE

    You’ll get a detailed estimate based on everything we discussed in your consultation. Once approved, we’ll place the order and schedule your installation.

  • Marvin Ultimate Wood Double Hung Insert Install

    INSTALLATION

    This includes removal of your old windows, professional installation to assure great performance, any necessary millwork, and clean-up inside and out.

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    ENJOY THE RESULTS

    When you use Big L Windows & Doors as your installer, you’ll have our Total Trust Guarantee on your new windows and doors.