Basement Underpinning in London, ON

London is the heart of our service area and where the majority of our legal basement apartment projects are located. With a growing population, strong rental demand from Western University and Fanshawe College students, and supportive municipal policies for secondary suites, London is one of the best cities in Ontario to invest in a legal basement apartment. We serve every neighbourhood from Old North and Wortley Village to Byron, Westmount, and the growing communities in south London.

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.