Waterproofing Services Toronto & Ontario
- Basement waterproofing & leak repair
- Foundation crack injection & sealing
- Interior drainage solutions & sump pump installs
- Exterior waterproofing (as needed)
- Mold-risk moisture control & vapour barriers
- Licensed, insured & bonded contractor
Water intrusion doesn’t fix itself. We help homeowners and property managers stop leaks, control moisture, and protect foundations with proven waterproofing solutions built for Toronto basements and Ontario weather. Everything you need to know about waterproofing services Toronto in the below guide.
Code-Compliant Waterproofing Solutions in Ontario
Waterproofing is a critical part of protecting your home’s structure, air quality, and long-term value. Our waterproofing solutions are designed to manage groundwater, surface water, and moisture intrusion commonly found in Toronto and Ontario properties, especially in basements and below-grade spaces.
All waterproofing work is completed to meet Ontario Building Standards, using proven materials and methods that prevent water entry, reduce hydrostatic pressure, and help protect foundations from long-term damage.
Why Choose Our Waterproofing Services in Toronto?
Waterproofing issues in Toronto homes are often caused by aging foundations, soil conditions, poor drainage, and seasonal freeze–thaw cycles. Choosing the right contractor matters. Our waterproofing services focus on identifying the source of water intrusion and applying long-term solutions designed for Ontario conditions — not temporary fixes.
We work with homeowners, property managers, and commercial clients to protect basements, foundations, and below-grade structures from moisture-related damage.
- Solutions designed for Toronto soil & weather conditions
- Interior & exterior waterproofing options available
- Licensed, insured & bonded contractor
- Compatible with finished & unfinished basements
- Long-term protection, not short-term patchwork
How Our Waterproofing Process Works
Every waterproofing project starts with identifying where water is entering and why. Our process focuses on addressing the root cause of moisture issues, whether they originate from foundation cracks, poor drainage, hydrostatic pressure, or exterior grading conditions.
Based on the property and the severity of the issue, we recommend the most effective waterproofing approach to protect your foundation and basement long term. In some situations, waterproofing is combined with basement insulation or closed-cell spray foam insulation to improve moisture resistance and protect below-grade structures.
- Assessment of foundation walls & moisture entry points
- Identification of interior vs exterior waterproofing needs
- Installation of appropriate waterproofing systems
- Drainage management to redirect water away from the foundation
- Final inspection to ensure long-term protection
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Waterproofing Cost Factors in Toronto
The cost of waterproofing depends on the source of the water issue, the condition of the foundation, and whether interior or exterior waterproofing is required. Toronto homes vary widely in age and construction, which means no two waterproofing projects are exactly the same.
After an on-site assessment, we recommend the most effective solution based on long-term protection — not temporary fixes.
- Interior vs exterior waterproofing requirements
- Severity and location of water intrusion
- Foundation type and accessibility
- Commonly used in attics and interior walls
- Drainage conditions around the property
- Scope of repair or preventative work
Where We Install Spray Foam Insulation
Ideal for reducing heat loss, improving comfort, and increasing energy efficiency in homes.
Helps control moisture, air leaks, and temperature fluctuations in below-grade spaces.
Seals one of the most common sources of air leakage in residential homes.
Improves comfort and insulation performance in attached garages and home additions.
Designed for offices, retail spaces, warehouses, and commercial buildings.
Custom spray foam solutions for specialized and industrial insulation needs.
Waterproofing Cost Factors in Toronto
Waterproofing costs vary based on the source of water intrusion, the condition of the foundation, and whether interior or exterior solutions are required. Toronto homes differ significantly in age, construction type, and drainage conditions, which means each waterproofing project must be assessed individually
- Interior vs exterior waterproofing requirements
- Foundation type and accessibility
- Severity and location of water intrusion
- Drainage conditions around the property
- Scope of preventative or corrective work
Our focus is on recommending long-term waterproofing solutions that address the root cause of the issue rather than temporary surface-level fixes.
Spray Foam Insulation FAQs
What causes water to enter a basement?
Water intrusion is commonly caused by foundation cracks, poor drainage, hydrostatic pressure, aging waterproofing materials, or improper exterior grading. Heavy rainfall and Toronto’s freeze–thaw cycles can worsen these issues over time.
Do I need interior or exterior waterproofing?
The right solution depends on where and how water is entering the foundation. Exterior waterproofing prevents water from reaching the foundation, while interior systems manage water after entry. We assess each property to recommend the most effective long-term option.
Can waterproofing be done year-round in Ontario?
Interior waterproofing can be performed year-round. Exterior waterproofing is typically completed during warmer months when excavation and soil conditions allow for proper installation.
Will waterproofing help prevent mold and moisture issues?
Yes. Proper waterproofing helps control moisture levels, which reduces the risk of mold growth, musty odors, and long-term structural damage in basements and below-grade spaces.
Do you provide waterproofing services across Toronto and Ontario?
Yes. We provide professional waterproofing services throughout Toronto and surrounding Ontario areas for residential, commercial, and below-grade properties.
Spray Foam Insulation Service Areas
Spray Foam Kings proudly serves Toronto, the GTA, and surrounding communities across Ontario. If you don’t see your city listed below, contact us to confirm availability.
- Toronto
- Mississauga
- Brampton
- Vaughan
- Markham
- Richmond Hill
- Oakville
- Milton
- Scarborough
- North York
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