Family owned and operated since 1989, Thermo Seal Insulation Systems was founded on the simple principles of providing superior products and service so everyone can enjoy the comfort and savings that come from having the best insulation available. With a strong dedication to quality and workmanship, it's no wonder Thermo Seal Insulation Systems has become the successful insulation contractor we are today.

The Largest Blown-In Fibreglass Insulation Installer in Ontario

Thermo Seal Insulation Systems has continued to grow over the years. Muskoka residents and cottagers have been witness to the growth of our head office and warehouse, which are right on Hwy 11. We are the largest contractor installing blown-in fibreglass insulation in Ontario, and after 28 years, it is a product we still firmly believe in.

One benefit to still being family owned and operated is that we don't govern ourselves like a corporation. We care about our customers and the communities in which we operate and stay true to our motto: Quality, Integrity, Pride – Since 1989.