If your existing attic insulation is in good condition but below the recommended R-value, a blown-in top-up is the most cost-effective way to improve your home's thermal performance. Universal Duct Cleaning installs additional blown-in insulation over existing material to bring Toronto and GTA homes up to Natural Resources Canada's recommended levels — and can guide you through Ontario rebate programs that may help offset the cost.
Many Ontario homes — especially those built before the 1990s — have attic insulation levels that fall well below today’s recommended R-50 to R-60 standard. If your existing insulation is intact and undamaged, you don’t need a full removal and reinstall. A professional blown-in top-up adds the depth needed to reduce heat loss in winter, limit heat gain in summer, and ease the burden on your HVAC system. Universal Duct Cleaning provides insulation top-up services for homeowners across Toronto and the GTA, along with guidance on government rebate programs that may help cover a portion of the cost.
If your energy costs are higher than expected for your home size, insufficient attic insulation depth is often a contributing factor worth investigating.
Many homes built before the 1990s have attic insulation that was installed to standards well below today's recommended R-50 to R-60 for Ontario.
If you can see the tops of your attic floor joists above the existing insulation, your current depth is almost certainly below the recommended level.
If you can see the tops of your attic floor joists above the existing insulation, your current depth is almost certainly below the recommended level.
Ice dams forming along your roofline in winter are a clear sign that heat is escaping through an under-insulated attic and warming the roof deck unevenly.
If a home energy audit has identified your attic insulation as a priority upgrade, a top-up is often the recommended next step.
We measure existing insulation depth and condition, identify gaps or bypasses, and confirm whether a top-up is appropriate or whether removal should come first.
Before new insulation is installed, gaps and bypasses around pot lights, plumbing stacks, and electrical penetrations are sealed to prevent warm air from escaping through the attic floor.
Additional blown-in insulation (cellulose or fiberglass) is installed over the existing material to bring your attic to the recommended R-value for Ontario.
Attic ventilation is assessed during the top-up to ensure the new insulation doesn't restrict airflow through soffit vents and roof vents.
We walk you through available Ontario rebate programs — such as the Enbridge Home Efficiency Rebate — and what's needed to participate.
Our crew takes care working in your attic and cleans up thoroughly once installation is complete.
We visit your home, measure existing insulation levels, assess overall attic condition, and confirm whether a top-up is the right approach.
We provide a detailed written quote and review any applicable rebate programs you may be eligible for, including what preparation may be required.
Gaps, bypasses, and penetrations in the attic floor are sealed before new insulation is installed to maximize the efficiency gains.
Additional insulation is blown in to bring your attic to the recommended R-value based on your attic's size and layout.
We inspect the completed top-up, photograph the work, and provide documentation for your records or any rebate applications.
Natural Resources Canada recommends R-50 to R-60 for most attics in Ontario. Many older homes fall well below this level and benefit significantly from a top-up.
Yes — in most cases, blown-in insulation can be added over existing insulation provided it is in good condition and free of moisture damage, mold, or pest contamination.
We use blown-in cellulose or fiberglass insulation. Blown-in material provides excellent coverage across irregular attic floors, around obstructions, and in hard-to-reach areas.
Insulation upgrades may be eligible for rebates through programs such as the Enbridge Home Efficiency Rebate and other provincial and federal initiatives. Eligibility typically requires a pre-upgrade energy audit. We can guide you through what's involved.
A typical residential top-up takes one day, depending on the attic size and the amount of air sealing required beforehand.
Book a free quote with Universal Duct Cleaning Inc. No pressure, no hidden fees.
