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

Professional waterproofing services
STRUCTURAL ENGINEERS ON STAFF

STRUCTURAL REPAIR TORONTO

Licensed structural engineers. Permanent solutions for cracks, settlement, and structural damage. 25-year transferable warranty. Emergency response 24/7.

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

Critical Structural Problems We Fix

Toronto's extreme weather and clay soil cause serious structural issues. Don't wait - building support problems worsen rapidly.

STRUCTURAL CRACKS

CRITICAL

Cracks wider than 1/4 inch indicate structural movement

PROFESSIONAL SOLUTION:

Carbon fiber reinforcement or steel piers

STRUCTURAL SETTLEMENT

SEVERE

Uneven floors, sticking doors, gaps around windows

PROFESSIONAL SOLUTION:

Push piers or helical piers to stabilize

BOWING WALLS

DANGEROUS

Walls curving inward from hydrostatic pressure

PROFESSIONAL SOLUTION:

Wall anchors or carbon fiber straps

WATER INFILTRATION

PROGRESSIVE

Water entering through structural cracks

PROFESSIONAL SOLUTION:

Crack injection and exterior moisture barriers

WARNING: STRUCTURAL PROBLEMS NEVER IMPROVE ON THEIR OWN

Delaying repairs leads to exponentially higher costs and potential structural failure

CALL FOR EMERGENCY ASSESSMENT: 437-545-0067

Why Toronto Building Structures Fail

Understanding local conditions is critical for proper repair

Toronto'S Destructive Forces

Expansive Clay Soil

Toronto's clay soil expands up to 40% when wet and contracts when dry, creating massive pressure on structures. This constant movement causes cracks, settlement, and structural damage.

Freeze-Thaw Cycles

With 100+ freeze-thaw cycles annually, water in structural cracks expands when frozen, widening cracks by up to 30% each winter.

High Water Table

Areas near Lake Ontario and the Don River have water tables as shallow as 4 feet, creating constant hydrostatic pressure of up to 600 lbs per square foot.

Aging Infrastructure

60% of Toronto homes were built before 1980 with structural standards that don't meet modern requirements. Original moisture protection has failed.

Neighborhood-Specific Risks

The Beaches / East York

Sandy soil, high water table, flood risk

North York / Willowdale

Clay soil, poor drainage, settlement issues

Etobicoke / Mimico

Creek proximity, erosion, lateral pressure

Scarborough Bluffs

Slope instability, erosion, foundation shift

High Park / Roncesvalles

Old foundations, tree roots, settlement

Downtown Core

Construction vibration, utility leaks, aged concrete

Structural Engineering Requirements

All structural repairs must account for soil conditions, water table levels, and potential soil movement according to NBC 9.4.4 specifications. Our engineers assess these critical factors before any repair work.

⛰️ NBC Table 9.4.4.1 - Soil Bearing Pressures

Soil/Rock Type Max Bearing Pressure Field Testing Method Settlement Risk
Sound Rock
Granite, limestone, sandstone
600+ kPa Geological assessment required Negligible
Dense/Compact Gravel
Well-graded, angular particles
150 kPa Picket test: <200mm penetration Very low
Loose Gravel
Poorly graded, rounded particles
50 kPa Picket test: >200mm penetration Moderate
Dense/Compact Sand
Well-graded, angular grains
150 kPa Picket test: <200mm penetration Low
Loose Sand
Uniform, rounded grains
50 kPa Picket test: >200mm penetration High
Stiff Silt
Difficult to indent
100 kPa Thumb pressure: difficult indent Low-moderate
Firm Silt
Moderate indentation
75 kPa Thumb pressure: moderate indent Moderate
Stiff Clay
Very cohesive, dry
100 kPa Thumb pressure: difficult indent Low
Firm Clay
Moderately cohesive
75 kPa Thumb pressure: moderate indent Moderate
Soft Clay
Easily deformed
40 kPa Thumb pressure: easy indent High - requires special design

🥖 Picket Test for Sand/Gravel

  1. 1. Use 38×38mm (2"×2") wood picket
  2. 2. Cut 45° bevel on end
  3. 3. Person of average weight pushes down
  4. 4. Measure penetration depth:
  5. • <200mm = Dense/Compact (150 kPa)
  6. • >200mm = Loose (50 kPa)

👍 Thumb Test for Clay/Silt

  1. 1. Test on undisturbed sample
  2. 2. Use wall of test pit
  3. 3. Apply thumb pressure:
  4. • Difficult indent = Stiff (100 kPa)
  5. • Moderate indent = Firm (75 kPa)
  6. • Easy indent = Soft (40 kPa)

⚠️ Critical Design Requirements

  • • If soil < 75 kPa, footings must be designed per NBC Section 9.4
  • • Check for weaker layers within 2× footing width depth
  • • If weaker layer exists at depth < 2W, use lower bearing capacity
  • • Load spreads at 60° angle from horizontal (frustum distribution)
  • • Eccentric loading near property lines requires special design

Reference: NBC 2015 Part 9, Section 9.4.4 - Foundation Conditions

Professional geotechnical investigation recommended for all major foundation work.

💧 NBC 9.4.4.3-4 Water Table & Soil Movement Requirements

⚠️ High Water Table Conditions

Bearing Pressure Reduction

50% Reduction Required When:

  • • Granular soil (gravel, sand, silt)
  • • Water table within footing width depth
  • • Free water reduces particle friction
Adjusted Bearing Capacities
Soil Type Normal High Water
Dense Gravel 150 kPa 75 kPa
Dense Sand 150 kPa 75 kPa
Stiff Silt 100 kPa 50 kPa

Design Note: Water table assessment required during wet season. Consider drainage systems to lower water table below footing width depth.

🏔️ Soil Movement Hazards

Moisture Changes

Clay Soil Risks:

  • • Swelling when wet
  • • Shrinking when dry
  • • Differential settlement

NBC Required: Min. 1.2m (4 ft) depth for clay foundations

Frost Protection

Frost Heave Prevention:

  • • Below frost line depth
  • • Free-draining backfill
  • • Insulation barriers

Ice Lensing: Use exterior insulation to prevent adfreezing

Tree Root Impact

Safe Distances:

  • • Poplar: 1× tree height
  • • Willow: 1× tree height
  • • Oak/Maple: 0.7× height

Risk: Roots extract moisture causing settlement

Sensitive Clay Soils

Leda Clay (Ottawa/St. Lawrence)

  • • Extreme moisture sensitivity
  • • Non-reversible shrinkage
  • • Requires special foundation design

Prairie Clays (Western Canada)

  • • High expansion potential
  • • Seasonal movement up to 100mm
  • • Deep pile foundations recommended
⚠️ Pyrite Contamination

Pyritic shale undergoes chemical-microbiological oxidation causing severe foundation heaving.

Risk Indicators:

  • • Concentrations > 0.1% by weight
  • • Common in shale/coal deposits
  • • Weathering starts with air exposure

Required Actions:

  • • Test all backfill material
  • • Remove or seal pyritic material
  • • Never use for foundation support

Reference: NBC 2015 Part 9, Section 9.4.4.3-4 - Foundation Conditions

Professional geotechnical assessment required for sites with high water tables or expansive soils.

NBC 9.4.4.5-6 Lateral Earth Pressure Requirements

Lateral Pressure Calculations

Triangular Distribution Formula

P = 0.5 × Ka × γ × H²

  • P = Total lateral force
  • Ka = Active earth pressure (0.33 typical)
  • γ = Soil density (480-1000 kg/m³)
  • H = Wall height
Example: 8ft Basement Wall

Drained Earth:

P = 0.5 × 0.33 × 480 × 2.4²

= 456 kg/m (93 lb/ft)

Saturated Soil:

P = 0.5 × 0.33 × 800 × 2.4²

= 760 kg/m (155 lb/ft)

⚠️ Surcharge Loads

Additional design required per NBC Part 4 for:

  • • Vehicles or equipment near wall (within H distance)
  • • Sloped backfill (>1:4 slope)
  • • Adjacent buildings or structures
  • • Temporary construction loads

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.

Critical for Toronto

  • • Clay soil expansion/contraction
  • • High water table near lake
  • • 1.2m minimum depth requirement
  • • Frost protection to 1.5m

Site Assessment

  • • Soil testing to 2× footing width
  • • Water table monitoring
  • • Tree root analysis
  • • Pyrite contamination testing

Engineering Solutions

  • • Helical piers for weak soil
  • • Drainage for water table
  • • Underpinning for settlement
  • • P.Eng certified designs

Structural Repair Methods

Licensed engineers determine the right solution for permanent repair

Push Pier System

BEST FOR:

Foundation settlement, sinking foundations

HOW IT WORKS:

  • Steel piers driven to bedrock (40-80 feet deep)
  • Hydraulic lifting to original position
  • Permanent stabilization guaranteed

COST: $1,500-$3,000 PER PIER

Average home needs 8-12 piers

Helical Pier System

BEST FOR:

Light structures, new construction, additions

HOW IT WORKS:

  • Screw-like piers installed with minimal excavation
  • Immediate load bearing capacity
  • Less disruptive than push piers

COST: $1,200-$2,500 PER PIER

Typical project needs 6-10 piers

Wall Anchor System

BEST FOR:

Bowing walls, lateral pressure, wall cracks

HOW IT WORKS:

  • Steel anchors installed in stable soil
  • Connected to wall plates inside basement
  • Gradually straightens walls over time

COST: $500-$700 PER ANCHOR

Most walls need 4-8 anchors

Carbon Fiber Straps

BEST FOR:

Minor bowing, crack stabilization, preventive

HOW IT WORKS:

  • 10x stronger than steel when cured
  • Epoxy-bonded to wall surface
  • Minimal intrusion, can be painted

COST: $300-$400 PER STRAP

Average wall needs 3-5 straps

Crack Repair Methods

Polyurethane Injection

For active water leaks. Expands to seal crack completely.

$500-$800 per crack

Epoxy Injection

For structural cracks. Restores concrete strength.

$600-$1,000 per crack

Hydraulic Cement

For minor surface cracks. Quick temporary fix.

$300-$500 per crack

OUR STRUCTURAL REPAIR PROCESS

Engineered solutions executed with precision

DAY 1

Structural Assessment & Engineering

MORNING (2-3 HOURS):

  • • Licensed engineer inspection
  • • Laser level measurements
  • • Crack width monitoring
  • • Soil analysis and testing
  • • Photo documentation

AFTERNOON (2-3 HOURS):

  • • Engineering calculations
  • • Load analysis
  • • Repair plan development
  • • Permit requirements review
  • • Cost estimate preparation
DAY 2-3

Site Preparation & Setup

EXCAVATION (IF REQUIRED):

  • • Utility marking and protection
  • • Careful excavation to foundation
  • • Soil removal and storage
  • • Foundation cleaning
  • • Access creation

EQUIPMENT SETUP:

  • • Hydraulic ram installation
  • • Pier driving equipment
  • • Safety barrier setup
  • • Material staging
  • • Monitoring equipment
DAY 4-6

Structural Repair Execution

PIER INSTALLATION:

  • • Drive piers to bedrock/load bearing strata
  • • Verify depth with pressure gauges
  • • Install bracket assemblies
  • • Connect to structural base
  • • Begin lifting process

LIFTING & STABILIZATION:

  • • Synchronized hydraulic lifting
  • • Continuous laser monitoring
  • • Crack closure observation
  • • Final positioning
  • • Permanent locking
DAY 7

Finishing & Restoration

WATERPROOFING:

  • • Crack sealing and injection
  • • Membrane application
  • • Drainage improvement
  • • Backfill with proper grading
  • • Landscape restoration

DOCUMENTATION:

  • • Final measurements
  • • Photo documentation
  • • Warranty registration
  • • Maintenance instructions
  • • Engineer's certificate

Structural Repair Investment & ROI

Professional repair protects your largest investment and increases home value

Typical Project Costs

MINOR CRACK REPAIR $500-$1,500 per crack
SETTLEMENT REPAIR $15,000-$40,000
BOWING WALL FIX $5,000-$15,000
FULL FOUNDATION

FINANCING AVAILABLE:

0% interest for 12 months | Up to $100,000 | Same-day approval

Return On Investment

HOME VALUE INCREASE:

Structural repair adds 10-15% to home value immediately

PREVENT FURTHER DAMAGE:

Avoid $50,000-$150,000 in future structural repairs

INSURANCE SAVINGS:

Lower premiums with certified structural repairs

FASTER HOME SALE:

Homes with structural warranties sell 35% faster

AVERAGE ROI: 180%

Factors Affecting Your Cost:

  • Severity of damage and number of affected areas
  • Depth to bedrock or stable soil (20-80 feet in Toronto)
  • Accessibility and excavation requirements
  • Type of foundation (poured concrete, block, stone)
  • Soil conditions and drainage issues
  • Permit requirements and engineering needs
  • Additional waterproofing requirements
  • Landscape and hardscape restoration

Permits & Engineering Requirements

We handle all permits and provide engineering documentation

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.

Engineering Certification

STRUCTURAL ENGINEER REPORT

Required for all major structural repairs

LOAD CALCULATIONS

Ensure proper support for your structure

SOIL ANALYSIS

Determine bearing capacity and conditions

AS-BUILT DRAWINGS

Documentation for permits and resale

LICENSED P.ENG ON STAFF

All work certified by Professional Engineer

Estimate Your Foundation Repair Cost

Get an instant estimate based on your specific situation

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

Industry-Leading Warranty Protection

Your investment is protected by comprehensive warranties

25

YEARS

Structural warranty on pier systems

100%

TRANSFERABLE

Adds value when selling your home

LIFETIME

SUPPORT

Annual inspections and maintenance

Warranty Coverage Includes:

  • • Material defects and workmanship
  • • Structural movement or settlement
  • • Pier system performance
  • • Wall anchor functionality
  • • Crack repair integrity
  • • Carbon fiber adhesion
  • • Waterproofing effectiveness
  • • Annual inspection service

Structural Repair Service Areas

Emergency structural repair across the Greater Toronto Area

Epoxy Injection

Polyurethane Injection

Carbon Fiber Straps

Wall Anchors

Steel I-Beams

Helical Piers

Push Piers

STRUCTURAL EMERGENCY? WE RESPOND IN 2 HOURS

Structural failure is dangerous - call immediately for emergency stabilization

Why Choose Dryspace

Compare our services to other waterproofing contractors

Service Features
DRYSPACE
RECOMMENDED
Other Companies
Lifetime Transferable Warranty YES Limited
24/7 Emergency Response YES NO
Free Detailed Inspection YES YES
Price Match Guarantee YES NO
Insurance Claim Assistance YES Extra Fee
Licensed & Insured YES YES
Response Time < 60 MIN 2-4 hours
Years in Business 25+ YEARS Varies
Financing Options YES Limited
Follow-up Service YES NO
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.

Project Gallery & Process Photos

Foundation crack requiring repair

Typical foundation crack before repair

Professional crack repair process

Injection repair method for permanent seal

Structural foundation crack

Major structural crack requiring immediate attention

Step crack in foundation wall

Step cracking pattern in block foundation

See more of our professional work and successful projects

View Full Gallery

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

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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

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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

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