Jefnik Windows and Doors is your source for new doors, replacement doors, new windows and replacement windows. We provide sales and installation of steel doors, fiberglass doors, patio doors, vinyl, aluminum, fiberglass and wooden standard and custom windows, awning windows, casement windows, single-hung windows, double-hung windows, single-sliding windows, double-sliding windows and picture windows, all available in custom shapes and sizes and in a variety of colour finishes. Jefnik Windows and Doors is based in Mississauga Ontario and proudly serves Mississauga, Oakville, Brampton, Etobicoke, Toronto and the surrounding GTA.

Residential & Commercial Windows and Doors

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Read our reviews and call Jefnik Windows and Doors

Rob Laj
Actual Google Review

"Absolutely love the finished product. Jeff and Co did an amazing job installing my front door. Would definitely recommend Jefnik windows and doors to family and friends. Thanks again."

Gina Moniz
Actual Google Review

"Terrific service, excellent installation, installers were very friendly and respectful to our home. The service provided was all around awesome. I highly recommend them for your windows and doors. Great products and great knowledge. Thank you so very much, love my windows and doors guys."

Actual Google Review

"Could not have asked for a better experience. Had several new custom doors placed in both home and business, high-end craftsmanship and attention to detail. Absolutely impressed with their work. I would highly recommend this company. A++++"

Liz Ledo
Actual Google Review

"What a pleasure! From the initial call to the in home assessment and installation, the high quality of professionalism was impeccable. We are so pleased with our windows and doors."

Dorothy Kowalski
Actual Google Review

"Jeff was amazing to deal with. He was extremely knowledgeable and easy to deal with. He was very responsive with any questions that we had. His whole team is very professional and their attention to detail is exceptional. We will definitely be calling them back next year to do more work on our house. If you are looking for anyone to do work to your windows or doors, look no further."

Actual Google Review

"If you are looking for quality, high end windows and doors, look no further. The Jefnik group provides you with amazing products and the attention to detail is impeccable.."

Mississauga Windows and Doors LogoGo to Jefnik Homepage for Mississauga Windows and Doors

"From Your Vision To Installation"

Jefnik Windows & Doors
Phone: 416-669-5943
cash, check, credit card, invoice
2583 Kingsberry Cres
Mississauga, ON L5B 2K7