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.

Custom Windows... | From your vision to installation.

Get A Quote!

Calculate 1 math 1 =

Custom Windows - Sales & Installation

Custom Windows - Sales & Installation

Jefnik Windows & Doors provides sales and installation of new and replacement Custom Windows.

- Custom Windows -

Jefnik Custom Windows
Custom Windows

Description: Custom Windows

Custom windows are an option available for your unique plans and projects. There are so many options including size, shape and functionality that require a conversation or detailed plans. Give us a call to discuss your ideas and we can determine next steps.


Talk to Us!

Calculate 4 math 5 =

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