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.

Durable Steel Doors... | Modern Fiberglass Doors... | Hardware & Accessories... | From your vision to installation.

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Door Installation

Mississauga, Oakville, Etobicoke and the GTA

Door Installation

Mississauga, Oakville, Etobicoke and the GTA

Whether you're looking for a new custom entry door to enhance the look of your home or to increase its security, Jefnik Windows & Doors offers a variety of doors to meet your specific needs. From the durability of steel to the sleek look of fiberglass, our selection of doors are custom-crafted and tailored to your specifications. Our custom entry doors are available in a variety of materials, finishes and styles to satisfy your taste. Each door is crafted to ensure long-lasting durability and can be customized with additional features such as a mail slot, knocker, peep site, kick plate and more.

Not all door installation companies are the same...

It's definitely worth a call with Jefnik Windows & Doors

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."

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

"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++++"


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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