Toronto Waterproofing Permits Guide
Everything you need to know about permits for foundation and waterproofing work in Toronto
Official Toronto Building Permit - Required for major foundation and waterproofing work
Important: Always Check Before Starting Work
Some waterproofing work requires permits in Toronto. Starting work without proper permits can result in fines and project delays. Dryspace handles all permit applications for our clients at no additional charge.
When Do You Need a Permit?
Basement waterproofing permits in Toronto cost $200–$800 from the City of Toronto Building Department, required for exterior excavation exceeding 4 feet, plumbing modifications, and structural work.
Permit Required
- Exterior Excavation: Any excavation deeper than 0.6m (2 feet) adjacent to foundation
- Underpinning: All foundation lowering or underpinning work
- Structural Changes: Any modifications to foundation structure
- Weeping Tile Replacement: Complete perimeter drainage system replacement
- Window Wells: New or enlarged basement window wells
No Permit Required
- Interior Waterproofing: Drainage systems, sump pumps, interior membranes
- Crack Injection: Sealing foundation cracks from inside
- Minor Repairs: Small patches, caulking, minor fixes
- Shallow Excavation: Less than 0.6m (2 feet) deep
- Preventive Coatings: Exterior sealers and coatings
Do You Need a Permit? Quick Check
Dryspace handles all permit applications for you!
No additional fees - we take care of the paperwork and follow-up.
Toronto Permit Application Process
Pre-Application
Site survey and engineering assessment. We determine exact permit requirements and prepare documentation.
Document Preparation
Prepare drawings, engineering reports, and application forms. Includes structural drawings if required.
Application Submission
Submit application to City of Toronto. Pay permit fees and await initial review.
City Review
City reviews application. May request revisions or additional information. We handle all correspondence.
Permit Issued
Once approved, permit is issued and work can begin. We schedule inspections as required.
Typical Timeline
Permit Costs
Inspection Requirements
- • Pre-excavation inspection
- • Foundation work inspection
- • Final completion inspection
- • Additional inspections for structural work
Required Documentation
Standard Requirements
- Completed application form
- Site plan drawing
- Foundation plan and details
- Cross-section drawings
- Specification documents
- Permit application fee
Additional (if required)
- Structural engineering report
- Geotechnical assessment
- Heritage impact assessment
- Adjacent property agreements
- Environmental assessments
- Utility clearance letters
Common Permit Issues & How We Solve Them
Application Delays
Missing documentation or incomplete applications can delay approval by weeks.
Our Solution:
We prepare complete applications from day one and maintain relationships with city planners for fast-track review.
Unexpected Costs
Additional requirements discovered during review can add unexpected permit fees.
Our Solution:
Thorough pre-application assessment identifies all requirements upfront. We provide accurate cost estimates.
Revision Requests
City may request changes to plans or additional engineering, causing further delays.
Our Solution:
Our in-house engineering team handles revisions quickly. We understand city requirements and design accordingly.
Let Dryspace Handle Your Permits
Don't let permit complexity delay your waterproofing project. We handle everything from application to final inspection - at no extra cost to you.
Complete Applications
All documents prepared correctly the first time
Faster Approval
Industry relationships speed up the review process
No Extra Fees
Permit handling included in all project quotes