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.
1977
Thermoproof manufactured it's first Aluminum Window.
2000
Thermoproof switched from Aluminum to Vinyl Window and Doors.
2005
Thermoproof Islander Patio Door went into production.
2017
Courtenay branch opened, offering Supply and Installation in the Comox Valley.
2020
Thermoproof opened a new Factory, Showroom, and Installation Teams in Cobble, Hill.
Customer Care
At Thermoproof we know that actions speak louder than words. Our sales and installation teams are knowledgeable, professional, and get the job done right the first time. We actively follow up with you once your new build or renovation is complete to make sure you are completely satisfied.
All our windows and doors are specifically built to withstand the elements on Vancouver Island and are assemble right here in Cobble Hill. Over 1 Million windows sold since 1977.
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.