ICF construction Ontario — insulated concrete form wall system on a custom home build
Housing Guides, Planning & Financial Guidance

ICF Construction Ontario: Costs, Code, and Net Zero Gains

Housing Guides, Planning & Financial Guidance /

ICF construction Ontario projects use insulated concrete forms, foam blocks filled with concrete and rebar that stay in place as permanent insulation. The wall package runs $42 to $55 per square foot in 2026, adding roughly $25,000 to $55,000 to a custom build.