Insulation - Install or Upgrade in Thornhill, ON

Proper insulation can help reduce energy costs and increase comfort levels at home - experts recommend focusing on areas such as the attic, basement and exterior walls. Please note that it is possible to over-insulate a home, as excess moisture can get trapped and lead to mold problems at home.

Recommended Pros in Thornhill, ON

Recently Reviewed Thornhill Insulation

Published: 01/02/2021
Very professional and honest. Gary did a fantastic job inspecting the job first and giving me a detailed quote. I had some other guys giving me a quote, non were 100% honest and professional. They comply with COVID19 regulations and...
Published: 04/22/2021
Company referred to me by a realtor. Smooth booking process and very organized. Service professionals at the house were prompt, friendly and knowledgable and efficient. Thanks to Gabe and Chris for a great experience.
Published: 04/19/2021
I wasn't told they had sealed up every vent in my attic thus enabling my roof shingles to bake. I've had to replace the roof shingles. Roofers and building inspectors were shocked that GNI had completely sealed my...