Semi-Detached Underpinning in Riverdale
About This Project
Underpinning semi-detached homes requires extra care due to the shared party wall. This Riverdale semi had a basement with 6'2" ceilings that the owners wanted to convert into living space. We worked closely with a structural engineer to design an underpinning sequence that would not affect the neighbouring property. The project required continuous monitoring and communication with the neighbour throughout.
Scope of Work
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Structural engineering for party wall considerations
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Sequenced underpinning away from party wall
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Lowered floor by 24 inches
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New concrete slab with radiant heat rough-in
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Interior drainage system
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Foundation crack repair and waterproofing
Results
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Increased ceiling height from 6'2" to 8'2"
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No impact to neighbouring property
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Ready for finishing as family room
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Radiant heat rough-in for future comfort
Project Gallery
Project Details
Original Height
6'2"
Final Height
8'2"
Basement Size
600 sq ft
Duration
8 weeks
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Underpinning
Basement underpinning & lowering in Toronto, Mississauga & GTA. Engineer-supervised, permits handled, 10-year workmanship warranty. Add 2-3 ft of ceiling height. 25+ years, 4.9★ reviews. Free engineering consult.
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