Professional Attic Insulation Services in the GTA
Upgrade your home’s energy efficiency and comfort. As Toronto's trusted exterior experts for over 40 years, we install premium Climatizer blown-in cellulose insulation to keep your home warm in the winter, cool in the summer, and your energy bills low.
Peter & Greg Walker Contracting Inc.
Protecting Your Home from the Top Down
For over four decades, Peter & Greg Walker Contracting has been the Greater Toronto Area's premier choice for roofing and exterior remodeling. We know that a truly secure, comfortable home requires more than just a great roof; it requires a properly insulated attic. By adding premium blown-in cellulose insulation to our trusted lineup of services, we are extending our commitment to protecting your home. Our expert team ensures your thermal envelope is sealed, helping you lower your utility bills and keep your family comfortable year-round.
Why Choose Blown-In Cellulose Insulation?
At Peter & Greg Walker, we prioritize the safety and satisfaction of our clients. With our comprehensive chimney services, we aim to provide you with a reliable, efficient, and long-lasting chimney system that enhances the comfort and value of your home.
Superior Energy Efficiency
100% Eco-Friendly
Fire & Pest Resistant
Treated with safe, non-toxic additives, our insulation acts as a powerful deterrent against mold, mildew, rodents, and pests, while also boasting a Class-1 fire resistance rating for your peace of mind.
A Homeowner's Guide to Understanding Attic Insulation
Maintaining Your Home's Thermal Envelope
Once your new cellulose insulation is installed, it requires virtually zero maintenance! However, to ensure your attic system functions perfectly for decades, keep these three tips in mind:
Ensure Proper Ventilation
Insulation works hand-in-hand with your roof vents (soffits and ridge vents). Never block these vents, as airflow is critical to preventing moisture buildup.
Check for Roof Leaks
A healthy roof protects your insulation. If you notice missing shingles or ceiling stains, call us for a quick roof repair before water can saturate and compress your attic insulation.
Watch for Pests
While our cellulose is treated to resist rodents, always make sure your exterior roofline and eaves are sealed tight against wildlife entry.
Mind Your Storage Space
Blown-in cellulose works by trapping tiny pockets of air. If you use your attic for storage, avoid placing heavy boxes or boards directly on top of the insulation.
The ROI of Attic Insulation
Did You Know?
Upgrading your attic insulation is one of the smartest, most cost-effective home improvements you can make.
- Slash Your Energy Bills: Homeowners can save anywhere from 20% to 50% on their heating and cooling costs simply by bringing their attic insulation up to modern R-value standards.
- Fast Return on Investment: Because it drastically lowers your monthly utility bills, upgrading your attic insulation often pays for itself within just a few years.
- Extend Your Roof's Lifespan: Proper insulation prevents "ice damming" in the winter by keeping your roof deck at an even, cold temperature, saving you from costly roof leaks and shingle damage.
Get 15% Off Your Attic Insulation Today
Financing is available, contact us for more!
For a limited time, Peter & Greg Walker Contracting is offering a 15% Discount on all new attic insulation installations. Don't let your hard-earned money escape through your roof!
What Our Happy Customers Are Saying:
"We got 3 quotes, with Walkers being the last. The salesman Brian took photos of our roof and attic then went through great detail educating us on the current condition of our roof from the inside out. Although it had been replaced about 20 years ago, given our 100 year old home, the venting, baffling and insulation were never done properly, thus we had great moisture problems in our home. Brian went on to explain exactly what was going to be done, the benefit of each step, and we got what we paid for. We were also given more photos of the attic and roof after job completion. From execution of steps to the cleanliness of the site during and after each day of work was well worth the price. Not only that, but Blerta the office and customer care manager is an exceptional communicator who kept us updated on project details. We're very happy with the process and final product."
- Katarina S.


Our 5-Step Approach to Insulation Excellence
Premium Quality Backed by Iron-Clad Warranties
We believe in using the best materials on the market, which is why we proudly install Climatizer Plus™ Cellulose Insulation. Manufactured right here in Ontario, Climatizer has over 50 years of experience producing high-performance, eco-friendly loose-fill insulation. Certified by the UL ECOLOGO™ program and rigorously tested by the National Research Council of Canada, Climatizer Plus guarantees maximum thermal comfort and safety.
Climatizer
Lifetime Material Warranty
Your Climatizer insulation is guaranteed to perform for the lifetime of your home.
Peter & Greg Walker Workmanship
5-Year Workmanship Guarantee
Installed by our manufacturer-trained experts, we guarantee a flawless application.
Frequently Asked Questions
How much money can I save by insulating my attic in Toronto?
Depending on the age of your home and your current insulation levels, upgrading to optimal R-values with blown-in cellulose can reduce your heating and cooling costs by up to 20% to 50% annually.
Is blown-in cellulose better than fiberglass insulation?
Yes! Cellulose is much denser than traditional fiberglass batts, giving it a higher R-value per inch. It is exceptional at filling oddly shaped cavities, offers superior soundproofing, and is made from eco-friendly recycled materials.
Do you have to remove old insulation before blowing in the new cellulose?
In most cases, no. New blown-in cellulose can usually be safely applied directly over your existing insulation to boost the overall R-value of your home. During our assessment, we will determine if your old insulation is damp, moldy, or heavily compressed and advise if removal is necessary.











