Attic Insulation Top-Ups
If your existing insulation is clean, dry and still in good condition, a top-up may be the most practical way to improve coverage and performance without a full replacement.
Professional attic insulation top-ups, removal and replacement.
We inspect your attic first and recommend only the work your home actually needs.
Reach out and learn how to save up to $1,500 with Available Energy Rebates ↗

From simple top-ups to complete removal and replacement, we assess your existing attic insulation and recommend the right scope for your home.
If your existing insulation is clean, dry and still in good condition, a top-up may be the most practical way to improve coverage and performance without a full replacement.
When insulation is wet, contaminated, badly disturbed or no longer suitable to remain in place, we can remove the affected material and install a clean replacement system.
For renovations, cleared attics and new residential projects, Mas Air provides complete attic insulation installation based on your attic layout and project requirements.
Not sure which option is right for your attic?
Want to better understand when attic insulation may need attention?
Learn more about common attic insulation concerns, including insulation lifespan and attic moisture and ventilation issues.
Every attic is different. We assess your existing insulation, explain the recommended approach, and complete the work based on your home's specific needs.
We inspect your existing insulation, attic conditions and factors that affect comfort and performance before recommending any work.
Based on what we find, we explain the recommended scope and the best option for your home.
You receive a clear quote outlining the recommended work, project scope and next steps before making a decision.
Our team completes the agreed work with attention to insulation coverage, attic airflow and proper installation practices.
You can also explore our guides on attic ventilation and moisture problems, attic insulation removal and available Ontario insulation rebates to better understand your options.
Available rebate programs can help reduce the cost of your attic insulation upgrade. Mas Air helps handle the process for you — from reviewing eligibility and preparing required information to supporting your rebate application.
We help identify available rebate opportunities based on your attic insulation project.
We help organize the required project information and documentation.
Our team completes the eligible attic insulation improvements.
We guide you through the remaining rebate application steps.
Eligible attic insulation improvements may qualify for incentives through the Home Renovation Savings program.
Additional incentives may apply when attic insulation is completed as part of a broader efficiency upgrade.
Homeowners across the GTA trust Mas Air for attic insulation improvements that focus on comfort, workmanship and the specific needs of each home.
"Great job upgrading our attic insulation. The team was very clean and careful throughout the work."
"Clear explanation of the work and before-and-after results helped us understand the improvement."
"Professional service, good communication and a smooth overall experience."
Heating emergencies don't follow a schedule, and neither do we. Our installation services are available around the clock to ensure you get the warmth you need, when you need it.

All our HVAC technicians are fully licensed and certified, with official brand training from industry leaders including Carrier, Lennox, Trane, Goodman, York, Kinghome, and MDV. Our experienced team diagnoses issues quickly and repairs them right the first time.
We provide upfront quotes before any work begins and only proceed with your approval. Our pricing is clear and fair—no surprise charges, no unnecessary add-ons. You'll know exactly what you're paying for.
We use genuine OEM or high-quality replacement parts for all repairs. If the same component fails within 7 days of our service, we'll address it promptly at no additional cost, protecting your investment.
As a local GTA heating provider, we understand the unique challenges of heating homes in this area—from century-old house retrofits to modern high-efficiency system installations. We offer full service in English and Mandarin for seamless communication.
Click here to learn more about our HVAC specialists.
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Families throughout the Greater Toronto and Hamilton Area trust Mas Air Home Comfort for service that’s fast, reliable, and rooted in real expertise. From urgent AC repairs to seasonal furnace checkups and everyday HVAC problems, we focus on delivering results that restore comfort—without delay or hassle.
Insulation can be installed any time of the year, but fall is the ideal season. It allows your home to be ready before winter arrives. If you notice high heating bills or uneven indoor temperatures during winter, it’s a clear sign that your insulation needs upgrading.
In many cases, a full replacement may be necessary, but not always.
Our team will first assess the condition of your existing insulation:
If it’s in good shape but too thin, we can simply add an extra layer on top.
If the material is damaged, wet, contaminated, or no longer meets safety standards, then complete replacement is recommended.
Properly installed insulation will not affect ventilation.
We install ventilation baffles to ensure that fresh air can flow freely from the eaves to the ridge vents. This maintains healthy airflow while delivering optimal insulation performance—keeping your attic dry and efficient all year.
Yes. We only use non-toxic, chemical-free materials that are approved in Canada.
All products are CSA (Canadian Standards Association) certified and meet or exceed the National Building Code of Canada requirements for safety and performance.
A typical residential attic insulation project usually takes 1-2 days, depending on the attic size and project complexity.
Roof insulation installations may take 2-4 days, depending on the roof structure and area.
Not at all. We use professional equipment and protective measures to minimize any disruption to your daily life.
All tools are thoroughly cleaned before use, work areas are properly covered, and our team performs a complete cleanup after finishing the job—leaving your home spotless.

Schedule a free attic assessment with Mas Air. Our team will evaluate your current attic conditions, explain your options and recommend the right solution for your home.
Call us today at 1-647-360-6623 or book your appointment online through our website.
Our team will respond promptly and help bring warmth, comfort, and efficiency back to your home!
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