Frequently Asked Questions
Everything you need to know
Canadian company
60+ years of experience
40,000 projects completed and satisfied clients
Best warranty in the industry
Canadian company
60+ years of experience
40,000 projects completed and satisfied clients
Best warranty in the industry
Canadian company
60+ years of experience
40,000 projects completed and satisfied clients
Best warranty in the industry
Canadian company
60+ years of experience
40,000 projects completed and satisfied clients
Best warranty in the industry
Canadian company
60+ years of experience
40,000 projects completed and satisfied clients
Best warranty in the industry
Canadian company
60+ years of experience
40,000 projects completed and satisfied clients
Best warranty in the industry
2025-05-22
Underpinning basement excavation
How long does it take to excavate an existing basement?
The duration of excavation work to deepen an existing basement (underpinning) typically ranges from 4 to 8 weeks. For larger or more complex projects, it can extend to 10 to 12 weeks.
Key factors that affect the timeline include:
- Basement size: larger spaces take more time to excavate.
- Desired height increase: greater depth requires more steps and structural support.
- Soil conditions: clay, rock, or unstable soils require specialized methods.
- Obstructions: plumbing, old foundations, or existing piles may slow progress.
- Site accessibility: limited access can delay logistics and material handling.
- Weather conditions: rain or winter conditions may cause delays.
A detailed project schedule is always provided before work begins. For a customized timeline based on your home, contact Heneault Gosselin.
Any other questions?
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Categories
- All questions
- Cross-cutting issues (emergencies, safety, comfort) (8)
- House lifting and moving (7)
- Underpinning basement excavation (6)
- Waterproofing, drainage, and foundations (6)
- Foundation refurbishment or replacement (7)
- Berlin walls (6)
- Foundation inspection (7)
- Foundation piling and house stabilization (9)
Popular questions
Categories
- All questions
- Cross-cutting issues (emergencies, safety, comfort) (8)
- House lifting and moving (7)
- Underpinning basement excavation (6)
- Waterproofing, drainage, and foundations (6)
- Foundation refurbishment or replacement (7)
- Berlin walls (6)
- Foundation inspection (7)
- Foundation piling and house stabilization (9)
Popular questions
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Manon Gosselin
Spokesperson, CEO
