Government Rebates Available - Up to $3,400 Back on Waterproofing

Professional waterproofing services
$3,400 REBATE AVAILABLE

EXTERIOR MOISTURE PROTECTION TORONTO

Complete foundation protection from the outside. Excavation to footing, membrane installation, drainage systems. Government rebates up to $3,400 available.

Exterior Waterproofing
Interior Drainage
Foundation Repair
Sump Pumps
French Drains
Underpinning
25
Years in Business
Established 1999
10,847
Projects Completed
Greater Toronto Area
100%
Licensed & Insured
WSIB Coverage
24/7
Emergency Response
Same Day Service
BBB Accredited Business A+ Rating Licensed by City of Toronto Fully Insured with Liability Coverage WSIB Workplace Safety Coverage HomeStars Verified Professional Google Reviews 4.9 Rating

Exterior Moisture Protection Problems We Solve

Professional solutions for Toronto's unique foundation challenges

BASEMENT PROBLEM ASSESSMENT

Identify your basement issue below. Each problem requires different solutions and urgency levels.

EXPERIENCING FLOODING RIGHT NOW?

Our emergency response team is available 24/7 for immediate water removal

CALL EMERGENCY LINE: 437-545-0067
EMERGENCY 24-48 HOURS
STANDING WATER

STANDING WATER

Est. Cost: $5,000 - $15,000

What You See:

  • Puddles on basement floor
  • Water seeping through walls
  • Wet spots after rain
  • Visible water streams

Common Causes:

  • Hydrostatic pressure
  • Foundation cracks
  • Poor drainage
  • High water table

IMMEDIATE WATERPROOFING REQUIRED

Professional diagnosis required

HIGH PRIORITY 1-2 WEEKS
FOUNDATION CRACKS

FOUNDATION CRACKS

Est. Cost: $500 - $5,000

What You See:

  • Visible cracks in walls
  • Stair-step cracks in blocks
  • Horizontal cracks
  • Widening gaps over time

Common Causes:

  • Settling foundation
  • Frost damage
  • Water pressure
  • Soil movement

CRACK INJECTION & REINFORCEMENT

Professional diagnosis required

HEALTH HAZARD 3-5 DAYS
MOLD & MILDEW

MOLD & MILDEW

Est. Cost: $2,000 - $8,000

What You See:

  • Black or green spots
  • Musty odors
  • Allergic reactions
  • Peeling paint

Common Causes:

  • High humidity (>60%)
  • Poor ventilation
  • Water leaks
  • Condensation

MOLD REMEDIATION & MOISTURE CONTROL

Professional diagnosis required

MODERATE 2-4 WEEKS
EFFLORESCENCE

EFFLORESCENCE

Est. Cost: $3,000 - $10,000

What You See:

  • White powdery deposits
  • Salt crystals on walls
  • Chalky residue
  • Staining on concrete

Common Causes:

  • Water moving through walls
  • Mineral deposits
  • Poor waterproofing
  • Moisture penetration

WATERPROOFING TREATMENT

Professional diagnosis required

PREVENTIVE 1-2 WEEKS
DAMPNESS & HUMIDITY

DAMPNESS & HUMIDITY

Est. Cost: $1,500 - $4,000

What You See:

  • Condensation on windows
  • Damp walls
  • Musty smell
  • Warped wood

Common Causes:

  • Poor ventilation
  • Groundwater seepage
  • Inadequate vapor barrier
  • Plumbing leaks

DEHUMIDIFICATION SYSTEM

Professional diagnosis required

EMERGENCY IMMEDIATE
BOWING WALLS

BOWING WALLS

Est. Cost: $10,000 - $30,000

What You See:

  • Walls curving inward
  • Horizontal cracks
  • Gaps at floor/ceiling
  • Doors not closing

Common Causes:

  • Hydrostatic pressure
  • Frost pressure
  • Expansive soil
  • Poor drainage

WALL ANCHORS OR REBUILD

Professional diagnosis required

NOT SURE WHICH PROBLEM YOU HAVE?

Our certified inspectors will diagnose your basement issues for FREE

Toronto'S Unique Foundation Challenges

Clay Soil Expansion

Toronto's clay-rich soil expands up to 40% when wet, putting tremendous pressure on structural walls. This hydrostatic pressure can reach 60 PSF, causing cracks, bowing walls, and water infiltration. Our exterior protective system addresses this by creating a moisture shield between the soil and your building structure.

Freeze-Thaw Cycles

Toronto experiences 40-50 freeze-thaw cycles annually, causing structural damage as water expands 9% when freezing. This creates progressive deterioration of concrete and mortar joints. Exterior protective barriers prevent water from entering these vulnerable areas.

High Water Table

Many Toronto neighborhoods, especially near Lake Ontario and the Don River, have water tables within 6-8 feet of the surface. This constant moisture pressure requires professional exterior drainage solutions to protect your structure year-round.

Aging Infrastructure

Over 60% of Toronto homes were built before 1980 with outdated moisture control methods. Original tar-based coatings have deteriorated, weeping tiles are clogged with sediment, and structural walls have developed cracks. Modern exterior protective systems restore security.

Complete Exterior Moisture Protection System

Industry-leading materials and techniques for permanent protection

What Is Exterior Moisture Protection?

Exterior moisture protection is the gold standard for protecting your home's structural base from water damage. This comprehensive solution involves excavating around your building structure to the footing level (typically 6-8 feet deep), repairing any existing damage, and installing a multi-layer protective barrier system that stops moisture before it can reach your structural walls.

Unlike interior water management which handles moisture after it enters, exterior protective barriers prevent infiltration entirely. This method addresses the root cause of lower level water problems by creating an impermeable barrier on the positive side (exterior) of your structural walls, where hydrostatic pressure is applied.

The process includes structural repairs, membrane application, drainage board installation, new weeping tile system, proper grading, and complete restoration of your property. With our 25-year transferable warranty, this investment not only protects your home but also increases its value by up to 30%.

OUR 6-STEP EXTERIOR PROTECTIVE BARRIER PROCESS

Step 1: Excavation & Site Preparation (Day 1-2)

We begin by protecting your property with plywood pathways and tarps. Using mini-excavators designed for residential work, we carefully excavate to the footing, typically 6-8 feet deep. We maintain a 3-foot working space and slope the excavation for safety. All soil is either stored on-site on tarps or hauled away based on your preference.

Special care is taken around utilities, which are hand-dug and marked. Trees and shrubs are protected with barriers, and valuable plants are temporarily relocated. We photograph everything before starting to ensure perfect restoration.

Step 2: Foundation Inspection & Repair (Day 2)

Once exposed, we power-wash the structural walls to remove all dirt and debris. Our certified technicians inspect every inch for cracks, deterioration, and structural issues. All cracks are routed out to create a V-groove and filled with hydraulic cement that expands as it cures.

Deteriorated mortar joints are repointed, spalling concrete is repaired with specialized restoration mortar, and any tie rod holes are sealed. For severe structural issues, we may install carbon fiber strips or steel braces before moisture protection installation.

Step 3: Protective Barrier Application (Day 2-3)

We apply a multi-layer protection system starting with a liquid rubber primer that penetrates the concrete pores. Next, we install either a rubberized asphalt membrane (60-mil thick) or spray-applied seamless rubber coating (minimum 80-mil thick). This creates a fully adhered, seamless protective barrier.

Critical areas like the footing-wall joint receive extra attention with reinforced detailing. We extend the membrane 6 inches above grade and seal it with a termination bar. The entire system is inspected for complete coverage before proceeding.

Step 4: Drainage Protection Board (Day 3)

Over the protective barrier, we install a dimpled drainage board (Delta-MS or similar) that serves multiple purposes: protecting the membrane during backfill, creating an air gap for moisture evaporation, and channeling any water down to the water removal system.

The drainage board is mechanically fastened at the top and extends from above grade down to the weeping tile. This creates a continuous water management plane that relieves hydrostatic pressure and ensures any moisture moves away from your home.

Step 5: Weeping Tile & Water Removal System (Day 3-4)

We install new 4-inch perforated PVC weeping tile at the footing level, surrounded by 3/4-inch clear gravel for optimal water removal. The system is sloped at 1/8 inch per foot toward the sump pump or storm connection. Filter fabric prevents soil infiltration while allowing water to enter.

Cleanout ports are installed every 25 feet for future maintenance. The system connects to either your sump pump (with battery backup) or the city storm sewer where permitted. We test water flow before backfilling to ensure proper function.

Step 6: Backfilling & Restoration (Day 4-5)

Backfilling is done in 12-inch lifts with proper compaction to prevent settling. We use free-draining material for the first 2 feet, then native soil or imported fill as needed. The final grade slopes away from your foundation at 5% for the first 6 feet.

We restore all landscaping, replant grass seed or lay sod, replace any damaged concrete or asphalt, and clean the entire work area. Many customers say their property looks better than before we started. All excess material is hauled away, leaving your property pristine.

Professional-Grade Materials & Membrane Options

Liquid Rubber Membrane

  • 50+ year lifespan
  • Seamless application
  • Self-healing properties
  • Best for severe water issues
  • $250-350 per linear foot

Rubberized Asphalt Sheet

  • 30-40 year lifespan
  • Consistent thickness
  • Proven reliability
  • Standard residential choice
  • $200-275 per linear foot

NBC 9.13.3 Moisture Control Requirements

When Moisture Protection Required

  • Hydrostatic pressure present
  • Water table above floor level
  • Poor drainage conditions
  • Underground structure roofs

System Requirements

  • Two-membrane system minimum
  • Continuous wall-floor connection
  • Floor membrane between slabs
  • 75mm min concrete layers

Critical: If water table rises >200mm above floor, buoyant pressure exceeds slab weight. Walls subject to hydrostatic pressure must be designed per NBC Part 4 and protected from moisture.

NBC 9.4.4.5-6 Lateral Earth Pressure Requirements

Foundation Wall Design Loads

Supported at Top (Anchored Sill)

Design as Vertical Beam

  • • Floor joists anchored to sill plate
  • • Load distributed to top and bottom
  • • Resultant force at h/3 from base

Max Deflection:

L/360 (more rigid)

Unsupported at Top (Pony Wall)

Design as Retaining Wall

  • • Common in split-entry homes
  • • Cantilever from footing
  • • Resultant force at h/3 from base

Max Deflection:

L/240 (more flexible)

Lateral Earth Pressure Values

Drained Earth

480 kg/m³

(30 lb/ft³)

With footing drains

Saturated Soil

800 kg/m³

(50 lb/ft³)

Poor drainage

Hydrostatic

1000 kg/m³

(62.4 lb/ft³)

Standing water

Critical Design Factors

Drainage System
  • • Footing drains mandatory
  • • Weeping tile at base
  • • Free-draining backfill
  • • Reduces pressure by 40%
Wall Reinforcement
  • • Vertical rebar @ 400mm
  • • Horizontal rebar @ 600mm
  • • Thicker at base (tapered)
  • • Buttresses if needed
Safety Factors
  • • 1.5× against overturning
  • • 1.5× against sliding
  • • 2.0× bearing capacity
  • • L/240 max deflection

Reference: NBC 2015 Part 9, Section 9.4.4.5-6 - Retaining Walls & Earth Pressure

Professional engineering required for walls >1.2m or with surcharge loads.

PROTECTIVE MEMBRANES

  • Blueskin WP200 self-adhering membrane
  • Aqua-Bloc 720-38 elastomeric coating
  • Tremco TREMproof 250GC spray-applied
  • W.R. Meadows Mel-Rol moisture barrier

Drainage Components

  • Delta-MS dimpled drainage membrane
  • 4" Schedule 40 PVC weeping tile
  • 3/4" clear drainage stone
  • Non-woven geotextile filter fabric

Toronto-Specific Considerations

Toronto's unique climate and geology create specific challenges for foundations:

  • Clay Soil: Expands up to 40% when wet, putting pressure on walls
  • Freeze-Thaw Cycles: 100+ cycles per year cause cracking
  • High Water Table: Many areas near Lake Ontario have water 3-4 feet below surface
  • Aging Infrastructure: Homes built before 1980 often lack proper moisture control

Government Rebate Program

The City of Toronto offers up to $3,400 in rebates for qualifying projects through the Basement Flooding Protection Subsidy Program.

  • We handle all paperwork and applications
  • Instant qualification check during inspection
  • Rebate applied directly to your final invoice

Our Process

From inspection to installation, we handle every step professionally

01 NO OBLIGATION

FREE INSPECTION

Certified experts assess your property to identify water issues and recommend solutions.

SAME DAY BOOKING

02 TRANSPARENT PRICING

DETAILED QUOTE

Comprehensive quote with multiple options, financing, and applicable government rebates.

WITHIN 24 HOURS

03 FULLY INSURED

PROFESSIONAL INSTALLATION

Licensed team completes work with minimal disruption. Full cleanup included.

1-5 DAYS TYPICAL

04 25 YEAR WARRANTY

WARRANTY & SUPPORT

25-year transferable warranty with ongoing maintenance and support.

LIFETIME SUPPORT

Our Process Guarantee

Every project follows our proven 4-step process with complete transparency, professional execution, and our industry-leading 25-year warranty.

Project Gallery & Process Photos

Exterior waterproofing membrane installation

Professional membrane application for complete protection

Dimpled membrane installation on foundation

Advanced dimpled membrane system for drainage

Exterior waterproofing process in Toronto

Our team excavating to install waterproofing

Dimpled membrane at foundation footing

Proper installation at the footing level

See more of our professional work and successful projects

View Full Gallery

Exterior Water Protection Investment

Transparent pricing with no hidden fees

Price Range

$200-$350

per linear foot

Average Home

$15,000-$25,000

100-150 linear feet

Rebates Available

Up to $3,400

City of Toronto

Factors Affecting Your Investment

Property Factors

  • Excavation depth (6-10 feet typical)
  • Perimeter length of foundation
  • Accessibility and working space
  • Soil type and excavation difficulty
  • Existing landscaping complexity

Scope Factors

  • Foundation repair requirements
  • Window well installations
  • Sump pump system upgrade
  • Concrete/asphalt restoration
  • Permits and inspections

Return On Investment

Immediate Savings

Prevent water damage repairs averaging $20,000-$50,000. Eliminate mold remediation costs of $5,000-$15,000. Stop structural deterioration requiring $30,000+ in repairs.

Long-Term Value

Increase home value by 5-10% immediately. Transferable warranty adds $10,000+ to selling price. Lower insurance premiums save $500-$1,500 annually.

Save With Government Programs

We handle all paperwork and applications for maximum savings

Toronto Basement Flooding Protection Subsidy Program

City of Toronto provides financial assistance for approved waterproofing installations

$1,750

Sump Pump Installation

Maximum subsidy amount

$1,250

Backwater Valve

Maximum subsidy amount

$400

Drain Severance

Maximum subsidy amount

ELIGIBILITY: Property must have experienced basement flooding or sewage backup. Licensed contractor required. We handle all paperwork and applications.

Complete Permit & Engineering Service

Full-service permit handling and technical documentation for all waterproofing projects

Technical Documentation

CAD Site Plans INCLUDED
Structural Cross-Sections INCLUDED
Engineer Stamps (P.Eng) INCLUDED
As-Built Drawings INCLUDED

Permit Management

Building Permit Application 2-3 DAYS
Code Compliance Review 100%
Inspection Scheduling WE HANDLE
Permit Fees TRANSPARENT

No Delays: Our in-house engineering team ensures fast permit approval. All drawings meet Ontario Building Code requirements. Licensed engineers on staff.

Calculate Your Project Cost

Get an instant estimate with subsidies included

Project Cost Calculator

Instant estimates with Toronto subsidy eligibility (up to $3,400)

ft
ft

Waterproofing Systems

Completed Projects

Real waterproofing solutions for Greater Toronto Area homes

NORTH YORK BASEMENT WATERPROOFING

NOVEMBER 2024 5 DAYS
Before - NORTH YORK BASEMENT WATERPROOFING
BEFORE
After - NORTH YORK BASEMENT WATERPROOFING
AFTER
DRAG

Problem Identified

Severe water infiltration and mold growth

Solution Implemented

Complete exterior waterproofing with French drain

Project Cost

$12,500

Get Quote

SCARBOROUGH FOUNDATION REPAIR

OCTOBER 2024 3 DAYS
Before - SCARBOROUGH FOUNDATION REPAIR
BEFORE
After - SCARBOROUGH FOUNDATION REPAIR
AFTER
DRAG

Problem Identified

Foundation cracks and basement flooding

Solution Implemented

Crack injection and interior waterproofing system

Project Cost

$8,200

Get Quote

MISSISSAUGA EMERGENCY WATER REMOVAL

SEPTEMBER 2024 24 HOURS + 4 DAYS
Before - MISSISSAUGA EMERGENCY WATER REMOVAL
BEFORE
After - MISSISSAUGA EMERGENCY WATER REMOVAL
AFTER
DRAG

Problem Identified

Flooded basement after heavy rainfall

Solution Implemented

Emergency pumping and waterproofing installation

Project Cost

$15,000

Get Quote

Have a Similar Problem?

Get your free inspection and professional quote today

EXTERIOR MOISTURE CONTROL SERVICE AREAS

Professional service across the Greater Toronto Area

Local Expertise Matters

Downtown Toronto & Old Toronto

Century homes with rubble foundations require specialized techniques. High water table near Lake Ontario demands robust drainage systems. Limited access in dense neighborhoods requires compact equipment. Average project: $18,000-$28,000.

North York & Scarborough

1960s-1980s homes with poured concrete foundations. Clay soil prevalent throughout area. Larger lots allow full perimeter access. Average project: $15,000-$22,000.

Mississauga & Brampton

Newer subdivisions with varying soil conditions. Some areas built on former farmland with poor drainage. Modern building codes but aging waterproofing. Average project: $14,000-$20,000.

Vaughan & Richmond Hill

Mix of new construction and established neighborhoods. Variable soil conditions from sand to heavy clay. Larger properties often require extensive drainage. Average project: $16,000-$24,000.

Full Excavation

Rubberized Membrane Application

Delta MS Dimpled Membrane

Weeping Tile Installation

Gravel Backfill

Parging & Foundation Repair

24/7 EMERGENCY SERVICE AVAILABLE

Same-day response for urgent moisture control needs

Why Choose Dryspace

Compare our services to other waterproofing contractors

Service Features
DRYSPACE
RECOMMENDED
Other Companies
Lifetime Transferable WarrantyYESLimited
24/7 Emergency ResponseYESNO
Free Detailed InspectionYESYES
Price Match GuaranteeYESNO
Insurance Claim AssistanceYESExtra Fee
Licensed & InsuredYESYES
Response Time< 60 MIN2-4 hours
Years in Business25+ YEARSVaries
Financing OptionsYESLimited
Follow-up ServiceYESNO
Lifetime Protection

Our warranty transfers to new homeowners, protecting your investment

Rapid Response

Emergency team on standby 24/7 with less than 60 minute response time

5-Star Service

Consistently rated 4.9/5.0 by over 500 verified customers

Guaranteed Work

We stand behind our work with comprehensive guarantees

Our Promise to You

We protect homes and families with transparent pricing, expert technicians, and a commitment to excellence. Your basement stays dry for life - guaranteed.

25-Year Transferable Warranty

The most comprehensive warranty in the industry

Warranty Coverage

  • Water barrier integrity for 25 years
  • Drainage system functionality for 25 years
  • Foundation crack repairs for 25 years
  • Workmanship guarantee for 25 years
  • Material defects for 25 years

Warranty Benefits

  • Fully transferable to new owners (once)
  • No deductibles or service charges
  • Annual inspections included (first 5 years)
  • 24/7 emergency response
  • Adds $10,000+ to home value

Customer Reviews

Verified testimonials from Greater Toronto Area homeowners

4.9/5.0

GOOGLE REVIEWS

500+ VERIFIED CUSTOMERS

EMERGENCY WATERPROOFING

VERIFIED CUSTOMER

"After spring flooding, Dryspace responded within 2 hours. Their team was professional, thorough, and the 25-year warranty gives us peace of mind."

Sarah Chen

Toronto

November 2024

EXTERIOR WATERPROOFING

VERIFIED CUSTOMER

"They helped us get the maximum government rebate and handled all the paperwork. Saved us over $3,400 on our exterior waterproofing project!"

Michael Rodriguez

Mississauga

October 2024

FOUNDATION REPAIR

VERIFIED CUSTOMER

"Professional from start to finish. The crew was respectful of our property, cleaned up daily, and finished on schedule. Highly recommend!"

Jennifer Park

Vaughan

October 2024

SUMP PUMP INSTALLATION

VERIFIED CUSTOMER

"Our basement has been dry for 3 years now. The sump pump system they installed works flawlessly, even during heavy storms."

David Thompson

Markham

September 2024

INTERIOR WATERPROOFING

VERIFIED CUSTOMER

"Best decision we made for our home. The interior waterproofing solution was less invasive than expected and works perfectly."

Lisa Anderson

Brampton

September 2024

FOUNDATION CRACK REPAIR

VERIFIED CUSTOMER

"Fair pricing, excellent communication, and quality work. They fixed foundation cracks that two other companies said needed major work."

Robert Kim

North York

August 2024

Join Our Satisfied Customers

Professional waterproofing services with guaranteed results

Technical Drawings & CAD Details

Professional construction details for contractors and engineers

4 AutoCAD Files
2 PDF Documents
2 SketchUp Models
EXTERIOR WATERPROOFING DETAIL
DWG
FOUNDATION SYSTEMS

EXTERIOR WATERPROOFING DETAIL

Complete exterior membrane application with drainage board

Includes:

  • Foundation wall detail
  • Membrane application layers
  • Drainage board installation
  • Gravel bed specifications
Download DWG (2.4 MB)
INTERIOR DRAINAGE SYSTEM
DWG
DRAINAGE SOLUTIONS

INTERIOR DRAINAGE SYSTEM

Weeping tile and sump pump configuration

Includes:

  • Weeping tile placement
  • Sump pit dimensions
  • Discharge piping layout
  • Backfill requirements
Download DWG (1.8 MB)
FOUNDATION CRACK REPAIR
PDF
REPAIR METHODS

FOUNDATION CRACK REPAIR

Injection repair methodology and specifications

Includes:

  • Crack preparation steps
  • Injection port spacing
  • Material specifications
  • Quality control checklist
Download PDF (856 KB)
SUMP PUMP INSTALLATION
SKP
MECHANICAL SYSTEMS

SUMP PUMP INSTALLATION

3D model of complete sump pump system

Includes:

  • 3D sump pit model
  • Pump placement options
  • Battery backup configuration
  • Discharge line routing
Download SKP (3.2 MB)
FRENCH DRAIN ASSEMBLY
DWG
DRAINAGE SOLUTIONS

FRENCH DRAIN ASSEMBLY

French drain installation with grading details

Includes:

  • Trench dimensions
  • Pipe specifications
  • Filter fabric placement
  • Grading requirements
Download DWG (1.5 MB)
BACKWATER VALVE DETAIL
PDF
PLUMBING SYSTEMS

BACKWATER VALVE DETAIL

City-compliant backwater valve installation

Includes:

  • Valve placement requirements
  • Access box specifications
  • Permit requirements
  • Inspection checklist
Download PDF (1.1 MB)
WINDOW WELL DRAINAGE
SKP
DRAINAGE SOLUTIONS

WINDOW WELL DRAINAGE

3D window well with drainage system

Includes:

  • Well dimensions guide
  • Drainage pipe connection
  • Gravel bed depth
  • Cover specifications
Download SKP (2.7 MB)
FOUNDATION WALL SECTIONS
DWG
STRUCTURAL DETAILS

FOUNDATION WALL SECTIONS

Comprehensive foundation wall construction details

Includes:

  • Concrete specifications
  • Rebar placement
  • Waterproofing layers
  • Insulation options
Download DWG (4.1 MB)

Usage Rights

Free for commercial and residential projects

Modify as needed for specific applications

Include in project submissions and permits

Share with team members and subcontractors

Technical Support

Engineering Department

Monday - Friday: 8:00 AM - 5:00 PM

Email: p.vysotckii@gmail.com

Phone: 437-545-0067 ext. 200

Need Custom Drawings?

Our engineering team can create project-specific details and specifications

Frequently Asked Questions

Everything you need to know about basement waterproofing in Toronto

Need Immediate Help?

Our waterproofing experts are standing by

CALL NOW: 437-545-0067
24/7 Emergency Service

Free Resources

2,847+

Happy Customers

4.9/5.0

Average Rating

Get Your Free Inspection

Schedule your comprehensive basement inspection today. Our certified experts will assess your needs and provide a detailed solution.

Quick Response

Same-day inspections available

No Obligation

Free inspection & quote

Expert Analysis

25+ years of experience

Direct Contact

Business Hours

Monday - Friday 7:00 AM - 8:00 PM
Saturday 8:00 AM - 6:00 PM
Sunday Emergency Only

24/7 Emergency Service Available

Emergency Free Inspection