Best Basement Finishing in London (2026)
Framing, insulation, finishing and basement suite conversions.
★ 2026 Winner
Legal Basements London
Make your basement legal. Add value. Generate income.
Legal Basements London is London, Ontario's trusted specialist in legal basement apartment conversions, basement underpinning, waterproofing, egress windows, and full basement renovations, backed by 15 years of experience. The team handles every step from permit applications and 3D design renderings through to final inspections, ensuring full Ontario Building Code compliance. Their fixed-price model and two-year workmanship warranty make basement conversion projects predictable and stress-free across London, St. Thomas, and Woodstock.