Basement Insulation Toronto

Professional Basement Insulation in the GTA

Konstruction Group provides professional basement insulation services for new custom homes, multiplexes, and basement renovations throughout Toronto. Basement walls are typically insulated with spray foam applied directly to the foundation - this provides superior moisture protection and thermal performance in below-grade environments. We also insulate rim joists, cold rooms, and other basement areas per Ontario Building Code requirements. Our insulation work coordinates with framing and drywall for complete basement finishing.

Basement Wall Insulation

Spray foam is the preferred insulation for basement walls. Applied directly to concrete foundation walls, closed-cell spray foam provides both insulation and moisture protection without the need for separate vapor barriers. The foam bonds to concrete, fills all gaps, and eliminates the cold surfaces that cause condensation problems in basements.

Basement Insulation Services

• Foundation Wall Spray Foam – Closed-cell spray foam directly on concrete for insulation and moisture control
• Rim Joist Spray Foam – OBC-required spray foam at floor system perimeter to seal air infiltration
• Cold Room Insulation – OBC-required spray foam for cold room walls and ceilings
• Rigid Board Alternative – Rigid foam board option for basement walls if spray foam is not preferred
• Basement Ceiling Insulation – Insulation above basement when space is unfinished or semi-conditioned

Why Spray Foam for Basements

Basements present unique insulation challenges - concrete walls, moisture migration from soil, and potential for condensation. Spray foam addresses all of these issues. Closed-cell foam is impermeable to moisture, preventing water vapor from reaching interior finishes. It also provides the highest R-value per inch, important where space is limited. For these reasons, spray foam is our standard recommendation for basement walls.

Rigid Foam Board Option

Some homeowners prefer rigid foam board insulation for basement walls instead of spray foam. We install rigid foam boards against foundation walls when this is the owner's preference. This approach requires careful attention to sealing edges and joints, and may require additional framing. It's a viable alternative but requires more labor and typically achieves lower effective R-values than spray foam.

What We Provide vs. What You Need

• We Provide – Spray foam or rigid board insulation, surface preparation, rim joist and cold room insulation
• You Provide – Clean, dry foundation walls, framing if required for rigid board, electrical/plumbing rough-in complete

Why Choose Konstruction Group

• Basement Specialists – Experienced with below-grade insulation challenges
• OBC Compliant – We know code requirements for basements, rim joists, and cold rooms
• $10M Liability Insurance – Full coverage for your protection
• WSIB Compliant – All workers covered
• Complete Package – Framing, insulation, and drywall available
• 1-Year Warranty – We stand behind our workmanship