Promo: Up to 50% Discount on All Window Replacement & New Window Installations.

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Save on Your Windows
Up to 50% Discount on
All Window Replacement & New Window Installations
We specialize in:
  • Window Replacement Services
  • Window Installation Services
  • Door Installation Services
  • Door Replacement Services
  • Planning and Designing Windows and Doors
  • Rebates and Financing Support
CALL 1-416-756-0798



Our team of experts installs high-quality windows of all shapes, sizes and types with a minimum of interruption to your life.


We offer a wide range of internal and external doors, whether you are looking for traditional or modern looks for your home.


Though our many decades of experience and extensive knowledge, we will help you develop your ideas and make them a reality.


We offer you a variety of rebates and financing options that make it easier than you think to have new windows and doors.

Save on Your Windows -up to 50% Discount on All Window Replacement & New Window Installations Get Free Quote!

OUR SKILLS AND BEYOND Great people, prices, and service from project beginning to end. Here at Thermo-Bilt Windows and Doors, we install and replace windows with care, quality workmanship, and strive for long lasting customer satisfaction. Thermo-Bilt wants to be your reliable source for all your residential window and door replacement needs. Replacement windows and doors save you money on energy costs, make your home more comfortable and increase your property value – you’ll wonder why you didn’t replace your windows and doors sooner. Thermo-Bilt carries a complete line of windows including casement windows, bow windows and bay windows, single and double hung windows, single and double sliders as well as awning and vinyl windows. Each type of window Thermo-Bilt installs is available in a number of styles, all equipped with energy-efficient, low e-rated glass that helps keeps your home more comfortable, in addition to preventing furniture and drapes from fading from UV rays.
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Installed 20 windows and 2 doors

Apr 04, 2013 by Jack
Location: Toronto 

My Experience was great! The professionalism amongst all members of the installation team was exceptional. Robert our salesman was very helpful as well. He guided us throughout the process, making the project (beginning to end) a breeze. Thanks again guys! - Jack

Window Installation

Mar 12, 2013 by Ved
Location: Markham 

They did 5 windows for me last summer and I want to do another 2-3 this coming summer so I’m hoping to talk to the guy I spoke to last time. The only slight problem I had was they left the garbage (I can't remember the technical term for what it was) on the side, but the next day they came and picked it up without my even needing to remind them. They’re really the best! I had done my patio door with another company and overall Thermo Bilt (especially Steve, the man who was in charge of the job) was the best contractor.


Feb 26, 2013 by Heather
Location: Toronto 

We've used ThermoBilt twice now to install different windows. My husband found them initially in an online search and we compared prices with other companies. The first time we used them was two years ago and after that we knew they did a good job so we didn't have to compare them with any other companies. They've done a great job!

Window installation

Feb 26, 2013 by Melisa
Location: Toronto 

They replaced my basement windows after I found their name in one of those flyers that have listings of renovation companies. I compared them to other companies and they had the same prices. The only problem I had with them was that they kept the stickers on the windows and I had to reach to take them off afterwards.

Installation of a Patio door and windows

Feb 26, 2013 by Prakash
Location: Toronto 

I've used ThermoBilt on two occasions now. They've changed my Patio door and installed windows in my entire house. I found them through a flyer but I compared prices with another company and their pricing was reasonable. They have friendly customer service (the rep was Danny Agnew), are on time, professional, and do an excellent job. When i used them the second time they gave me the same price as the first time I had used them. I will highly recommend them.

Sliding glass door installation

Dec 03, 2012 by Kirby
Location: Vaughan 

I used their service to install sliding glass doors in my home in the summer of 2012. I was very pleased with their level of service and the price point was comparable, if not cheaper than other companies. They did leave some dust on the floors but otherwise I would recommend them.

5 Windows

Nov 28, 2012 by Ken
Location: Markham 

Thermo-Bilt did five windows in my house and did a good job. I found out about them through a neighborhood flyer, they came in and did and estimate and did the job for exactly what they quoted, cleaning up well in the process. It was like they were never here.

Installed Lots of Windows

Nov 08, 2012 by Gwen
Location: Vaughan 

Installed Lots of Windows
I've used Thermo-Bilt on both my old and new homes. I continue to use them for many reasons. I like that when I order something from them I get it exactly as ordered, their prices are competitive, their installers are great and that they finish the job within a reasonable time-frame. Also, recently we were missing weather-stripping on one of the jobs they did which they are fixing up for us, no problem.

Patio Door

Nov 08, 2012 by Juman
Location: Richmond Hill 

I contacted Thermo-Bilt upon deciding to replace the patio door in my home and am very happy with the work that they did. I've had no problems with them or their work at all, their company is very efficient.

4 Windows

Nov 08, 2012 by Brian
Location: Richmond Hill 

We had a pamphlet from Thermo-Bilt delivered to our home and decided to give them a shot when replacing 4 windows. I'm glad we did as they did a very good job. The final price was as estimated, there were no problems whatsoever with their work and they were professional all the way through.

Window replacement

Nov 07, 2012 by Jason Kendall
Location: Vaughan 

When I was looking to replace the windows on the back of my home this fall (9 windows), I did a great deal of research and comparision, this being my first experience. I decided to go with Thermo-Bilt based on the comfort level I felt with their product and expertise. The price quote I received was reasonable, and I felt that the product features that they explained to me were superior to rest. On the day of installation, the Thermo-Bilt team worked with an amazing efficiency, removing the old windows and putting in the new ones cleanly. I was amazed at both the speed of the operation and the professional look of the completed work. This being my first experience with a job like this, I was nervous, but I need not have been, as Thermo-Bilt lived up to all expectations. I am now heading into winter with no worries about those windows, and when I am ready to replace the windows in the rest of the house, it will be Thermo-Bilt that I call, no question. Thanks Thermo-Bilt!


Oct 02, 2012 by Anthony
Location: York 

We found thermo-bilt by accident, but are sure happy we did. Neil, our sales representative took the time to explain the difference between their windows and others available out there. We didn't think we'd be able to afford to replace all of our windows, but amazingly, the price they quoted us to do the whole house was great, and we decided to go ahead with it. The windows were fabricated to order, and installed within 3 weeks of our first meeting with Neil. The installers did a great job, spending 8 hours to replace our 10 windows. They took our old windows away, and did a great job of cleaning up after they were done also.

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