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.


"From Your Vision To Installation"

Mississauga Door Replacement

If you are in the Mississauga area and are looking for suppliers of high quality doors to replace your existing doors, be sure to contact us for a competitive quote.

The custom doors we provide are guaranteed. We go above and beyond to make each installation as seemless as possible. Our business is built on good work and high quality referrals from past customers.

This business model has helped propel our business and we will continue to design our solutions with this in mind.

If you are unsure what type of door you are interested in, consider speaking with us. We can come out and take a look and make suggestions to meet your requirements to ensure you are happy with the final solution.

Mississauga door replacement has been identified as one of the main ways our customers find our website. We want to ensure that you find exactly what you want.

Jefnik Windows and Doors focus on a great installation to ensure that you get many years are flawless use from your new product.

Give Jefnik a call today and discover some options for your project.

Mississauga Window Replacement

Mississauga Window Replacement

Mississauga Window Replacement
While the weather is nice, consider upgrading your windows
(Job Location: Mississauga)

Welcome to our new website. We are putting together a blog and will be posting new information online as we get it.

Let us know if you have any requests for information or FAQs and we will do our best to put it online.

We look forward to hearing from our clients in the Mississauga and surrounding areas.

If you have been sitting on the fence on whether or not you should buy new replacement windows and doors for your home, consider giving us a call to discuss the benefits.

Most homeowners do not realize the huge impact that windows and doors can have on the appearance and energy conservation efforts within their home. Increasing the R rating of your home is one of those things that you can feel after it is completed and you are glad you did.

Take a look at our gallery (links in top navigation) where you can view examples. The website is constantly being updated. If you do not see what you are looking for, give us a call and we can let you know if we can help.

Today’s windows and doors are noticeably more energy efficient than they were 20+ years ago. Making the right choices when replacing your windows (such as choosing double glazed windows that are sealed with argon or krypton gas) you can expect to save a significant amount of money every month on your heating expenses, all while remaining comfortable within your home.

Jefnik Windows and Doors LogoGo to Jefnik Windows and Doors Homepage

"From Your Vision To Installation"

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