An industry leader for over 40 years on Vancouver Island, and still breaking new ground.
A local business since 1977
We are the largest locally owned window and door manufacturer on the island. We started out with wood windows, transitioned to aluminum and have now perfected our products using vinyl. Our components may have changed over the years, but our focus on exceptional quality and customer service remains steadfast.
Production Manager – Partner
At Thermoproof, we listen carefully in order to understand your needs and goals.
We also know that actions speak louder than words. Our sales and installation teams are knowledgeable, professional, and get the job done right the first time. Plus, we actively follow up with you once your new build or renovation is complete to make sure you are completely satisfied.
We know we’re doing something right because our customers are our greatest ‘marketing team’ – consistently sharing their praise for our products and services with family and friends.
Renovating your home?
Give us a call or email us with any questions you may have about your windows and doors. We want to help you find exactly what you need.
Windows were beyond expectations we are extremely happy with the quality and finish.
We love that you build your product locally and that you back it with exceptional service, and accordingly, we will absolutely recommend Thermoproof to anyone asking about windows.
If I require further window services I will use Thermoproof. I am a happy customer and appreciate excellent service.
We are SO happy with our new windows!!! The process to order was super fast and the production time was only a couple weeks. The installers were the icing on the cake. Absolutely the most considerate trades people we've dealt with to-date.
Thermoproof windows in Duncan BC have good quality windows, better than all the other brands readily available in my area (South Vancouver Island). I did my research and concluded after much comparison of price, warranty, and overall product, I made the decision to go with Thermoproof. Made in Cowichan valley.
Please feel free to call or email us with any questions you may have.