
Spray foam insulation contractors in Toronto. Open and closed cell foam for walls, attics, and basements. Energy-efficient, licensed installers, free estimates.
Konstruction Group is a leading spray foam insulation contractor serving Toronto and the GTA. Spray foam is our primary insulation offering - it delivers superior air sealing and thermal performance that batt insulation simply can't match. We install both closed cell and open cell spray foam for new custom homes, multiplexes, and renovation projects. Our work meets Ontario Building Code requirements, and we coordinate with your framing and mechanical trades for efficient project completion.


Ontario Building Code requires spray foam in several key areas where air sealing is critical. We spray basement walls, rim joists, garage ceilings, flat roofs, exposed ceilings, and cold room walls and ceilings. These areas are prone to air leakage and thermal bridging - spray foam seals them completely while providing excellent R-value.
Spray foam expands to fill every gap, crack, and void - creating a continuous air barrier that batt insulation can't achieve. In basements, spray foam bonds directly to concrete and eliminates the need for separate vapor barriers. For rim joists and other complex areas, spray foam seals completely where batts leave gaps. The result is better energy performance and fewer comfort issues from air leakage. Our insulation work coordinates seamlessly with framing, drywall, and steel beam installation.

We review drawings and discuss spray foam requirements - basement, rim joists, garage ceiling, and other areas.
Typical timeline: 1-2 daysDetailed pricing based on areas to be sprayed, foam type (closed/open cell), and thickness requirements.
Typical timeline: 2-4 daysCoordinate timing after framing and mechanical rough-in are complete and inspected.
Typical timeline: As neededAreas cleared and protected. Windows, fixtures, and surfaces masked as needed.
Typical timeline: 1-2 hoursFoam applied to specified thickness. Multiple passes for thick applications.
Typical timeline: 1-3 daysExcess foam trimmed flush with framing. Overspray cleaned. Area ready for next trades.
Typical timeline: Same daySpray foam insulation typically costs $4-$8 per square foot depending on R-value (thickness) and application. Pricing varies based on coverage area, accessibility, and project scope. Basement walls, rim joists, and garage ceilings are quoted based on area. We provide detailed quotes after reviewing your project.
OBC requires effective air sealing at rim joists, cold room walls and ceilings, and transitions between conditioned and unconditioned spaces. Spray foam is the most reliable way to achieve these requirements. It's also commonly specified for basement walls, garage ceilings below living space, and flat roofs.
Closed cell spray foam is denser (2 lb/cu ft), provides R-6.5-7 per inch, and acts as its own vapor barrier. Open cell is lighter (0.5 lb/cu ft), provides R-3.5-4 per inch, and requires a separate vapor barrier. We use closed cell for most OBC-required applications and basement walls. Open cell is suitable for interior applications where vapor permeability is acceptable.
Yes, we spray foam existing basement walls as part of basement finishing projects. The concrete must be clean and dry. Spray foam bonds directly to concrete, providing insulation and moisture protection without the need for separate vapor barriers or strapping in many cases.
Spray foam is tack-free within minutes and fully cured within 24 hours. The space should be ventilated during and after application. We can trim excess foam and other trades can work in the area typically the next day. We coordinate timing with your project schedule.
Yes, we provide complete insulation services including spray foam, batt insulation for exterior walls, blown-in for attics, and soundproofing. Many projects use spray foam for specific OBC requirements and batts for general wall insulation. We quote the appropriate combination for your project.
Contact us today for a free consultation and estimate on your project.
Request Quote Online(416) 901-6020Batt insulation installation in Toronto. Fiberglass and Rockwool for walls, attics, and basements. R-value guidance, licensed installers, free estimates.
Attic insulation services in Toronto. Blown-in, batt, and spray foam options. Reduce heat loss, lower energy bills. Licensed contractors, free estimates.
Soundproofing insulation for walls, ceilings, and floors in Toronto. Acoustic batts, spray foam, and resilient channels. Licensed installers, free quotes.
Contact Konstruction Group today for professional spray foam services in Toronto and the GTA.
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