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At Ener-Tight Windows & Doors Ltd, we offer quality-assured workmanship. We pride ourselves on customer satisfaction and strive to exceed your expectations. Find out what our past customers have to say about our services. Contact us today for more information.

We Are Very Happy

“I just wanted to send a follow-up email to say thank you to you and your entire team for our recent window replacement job. We are very happy with our new windows and have already noticed a big difference: less noise coming in, less heat going out and an all-round better look to our house. Thanks again!”


Incredible Courtesy and Respect


“Just wanted to express our thanks for dealing with our window in such a quick manner once I was able to supply pictures. I also would like to convey our appreciation to the fellows who did the installation this morning (Josh and Pat I believe) whom we were very happy with. They showed incredible courtesy and respect and addressed all our concerns—definitely a pleasure dealing with them. I always feel it is important to pass along my comments when we are so pleased with good service.


Thank you again, I will let you know if we have any further concerns but I’m confident this morning they were very thorough in making sure this window is now in good working condition along with the new glass. Please reiterate our thanks to them both.”


Happy New Year!


- Tom and Jill

Exceptional Customer Service


“Ener-Tight Windows & Doors Ltd. has been handling our window and doors renovation projects since 2010. When dealing with Ener-Tight, you can expect integrity, efficiency, professionalism, and excellence.


We first met Greg not long after we purchased our home in 2010. We called him about front entrance doors and windows for our newly renovated kitchen after getting a few quotes from other companies. What a difference in customer service! Greg was very patient in answering all our questions and listened to us as we explained our vision of creating a sunroom in my kitchen area. With his vast experience and knowledge of windows and doors, Greg helped us by offering recommendations for windows and doors that exactly met our needs. We proceeded with the installation. Ener-Tight kept us informed of the next steps during the windows and doors installation process. The quality of work from the window and door installers was impeccable. They did precision work were punctual and well organized. They also left our home nice and clean. What a difference the beautiful entrance doors and windows made in our home!


Fast-forward to 2019


We called Ener-Tight Windows & Doors Ltd. because we were satisfied customers and wanted to expand on the sunroom in the kitchen vision with a custom window installation. We also needed basement windows, new side door, and garage entry door. Greg once again came to our home. We received the same exceptional customer service and guidance in choosing the right windows and doors for our project. We went ahead with the install and we were extremely pleased when the same qualified team of window and door installers from earlier years came to our home. During the custom window installation, we never doubted that we were in good hands. The window and doors were installed with precision and accuracy. Once again, it was a very positive experience with Ener-Tight from beginning to end.


We have been extremely satisfied with all our window and doors renovation projects. We express confidence in our sincere recommendation for Ener-Tight windows & Doors Ltd. We have not hesitated in hiring them again and again.”


- Ken and Lise-Anne

Windows and Doors for 120-year-old House


“I replaced all windows and the front door in a home in the heritage designation area of Lowertown. Windows are excellent functionally, of course. But more important, the work was done while entirely preserving the interior trim (impossible to replace) and keeping the facade in character (great, minimalist flashing). Be prepared for sawdust. They clean up but cover beds, carpets and furniture.”

- Stephen

Windows and Door


“Excellent and professional service. Installation and cleanup. They explained everything with regarding the operation and maintenances of my new windows. Extremely happy with my new windows and front door. Highly recommend Ener Tight to friends and family.”


- robertheffernan23

Windows and Garden Door Replacement


Lovely, reliable, and local family-owned business. Very responsive, fair pricing, great products, quality servicing, easy communication. Highly recommend.


- Private user

Great Customer Service


I am a repeat customer and I find I get great customer service and they always are fair with me. I would definitely recommend them to anyone looking for new windows.


- Luciano

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