O’Dwyer Insulation

With a commitment to quality and efficiency, O’Dwyer Insulation helps homeowners create more comfortable, energy-efficient living spaces. Our expert team provides seamless insulation solutions, from professional guidance to precise, mess-free installation. Whether upgrading an existing home or enhancing a new build, we ensure optimal performance and long-term energy savings.

Home comfort starts in the attic — and at O’Dwyer Insulation, we help Ontario homeowners take control of energy loss where it matters most. From Guelph and Kitchener to Orangeville and Shelburne, our team combines building science expertise with high-performance Owens Corning blown-in insulation to create lasting results. We don’t just install insulation — we help you improve air quality, reduce energy waste, and extend the life of your home through smarter, more sustainable solutions.