Basement Underpinning
Increase your basement ceiling height by lowering the floor — essential for meeting building code requirements and creating livable space.
Many older homes in London have basements with ceiling heights under 6’9”, which doesn’t meet Ontario Building Code minimums for habitable space. Basement underpinning lowers the existing foundation and floor to create the ceiling height you need — typically 8’ or more. This is a specialized structural process that involves excavating beneath the existing footings in carefully sequenced sections, pouring new concrete to extend the foundation depth, and then pouring a new floor slab. Our team has extensive experience with underpinning London’s older housing stock, including homes with stone, block, and poured concrete foundations. Every project is engineered by a licensed structural engineer and inspected at every stage.
Key Benefits
- Engineered structural design
- Increases ceiling height to 8’+
- Works with all foundation types
- Sequenced excavation for safety
- New waterproofing membrane included
- Full municipal permit and inspections
Basement Underpinning in Your Area
We provide basement underpinning services across London and Southwestern Ontario:
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