Blown-In Insulation Toronto

Professional Blown-In Insulation in the GTA

Last updated: March 6, 2026

Konstruction Group provides professional blown-in insulation services for attics in Toronto and the GTA. Blown-in insulation is the ideal solution for attic spaces - it fills every gap and covers the entire attic floor to achieve R60 ratings required by Ontario Building Code. We install blown-in insulation for new custom homes, multiplexes, and existing homes needing insulation upgrades, coordinating with framing and drywall for complete building envelope solutions.

Attic Blown-In Insulation

Attics are best insulated with blown-in material because it covers the entire floor surface including around joists, wiring, plumbing vents, and other obstacles. Unlike batts that must be cut and fitted, blown-in insulation flows into every space and achieves consistent coverage without gaps or compression. This is especially important around ceiling pot-light housings and HVAC boots where batts would need to be cut into irregular shapes. For new construction, we blow insulation to R60 after all other trades have completed attic work.

Blown-In Insulation Materials

• Fiberglass Loose-Fill – Loose fiberglass blown to specified depth for consistent R-value coverage
• Cellulose – Recycled paper fiber treated for fire and pest resistance - eco-friendly option
• Mineral Wool Blown-In – Blown mineral wool (rock wool) for excellent fire resistance and sound absorption
• R60 Coverage – Ontario Building Code requirement for attic insulation in new construction

New Construction Attics

For new custom homes and multiplexes, blown-in attic insulation is typically the final insulation step. We install after drywall, electrical, and HVAC work is complete. Depth markers are placed throughout the attic to verify consistent R60 coverage. Baffles at eaves maintain soffit ventilation while preventing insulation from blocking airflow.

Existing Home Upgrades

Older homes often have insufficient attic insulation - sometimes only R20 or R30, well below current code. We can add blown-in insulation on top of existing insulation to bring attics up to current R60 standards. This non-invasive upgrade doesn't require removing existing insulation or disturbing ceilings, making it a cost-effective energy improvement. Many Toronto homeowners see noticeable heating bill reductions after upgrading from R30 to R60, particularly in homes with older fibreglass batts that have compressed or shifted over the years.

What We Provide vs. What You Need

• We Provide – Blown-in insulation material, equipment, installation to specified R-value, depth markers
• You Provide – Attic access, all other trades complete, drywall installed (new construction)

Why Choose Konstruction Group

• Complete Coverage – Blown-in reaches every corner and gap
• R60 Verified – Depth markers confirm proper coverage
• $10M Liability Insurance – Full coverage for blown-in cellulose and fiberglass applications in attics and walls
• WSIB Compliant – Workers insured for attic and confined-space blown-in work
• New & Existing Homes – We serve both markets
• 1-Year Warranty – Blown-in depth and coverage guaranteed against settling

Cellulose Blown-In Insulation

Cellulose is one of the most popular blown-in insulation materials, made from recycled paper fibers treated with fire retardant. It provides excellent thermal performance at R-3.5 to R-3.8 per inch and superior sound dampening compared to fiberglass. Cellulose settles tightly into cavities, reducing air movement through the insulation layer. For attic applications, we blow cellulose to the depth required to achieve R-60 — typically 16 to 18 inches of settled thickness.

Blown-In Wall Insulation

Blown-in insulation is the preferred method for insulating existing enclosed walls without removing drywall. We drill small access holes, dense-pack cellulose or fiberglass into the wall cavity, then patch and finish the holes. Dense-pack wall insulation fills around wiring, pipes, and irregular framing that would leave gaps with batt insulation. This technique is especially effective for older Toronto homes with uninsulated or under-insulated exterior walls.