EST. 1994

Where Precision Meets Protection

Transforming vulnerable basements into fortified foundations through cutting-edge waterproofing technology.

Lifetime transferable warranty on all waterproofing installations

24-hour inspection, 48-hour installation guarantee

Transparent pricing with flexible financing options available

Protect your home's foundation, prevent mold growth, and increase property value with professional waterproofing.

Most residential waterproofing projects are completed within 2-3 days, with minimal disruption to your daily routine.

01

Diagnosis

Advanced moisture detection

02

Solution

Custom waterproofing plan

03

Protection

Lifetime warranty coverage

100% Waterproof
Mold Prevention
Foundation Repair
Lifetime Value
waterproofing-status.sh
$ check_basement --moisture
✓ Moisture Level: 0.0%
✓ Foundation: Protected
✓ Warranty: Active
99.7 %
Success Rate
25 M+
Sq Ft Protected
48 hr
Guarantee
Premium waterproofing
Award Winner 2024
Certified Expert
HomeStars 2024
BBB Excellence
Industry Leader
Limited Time Offer!

20% off winter waterproofing services

Our Services

Interior Waterproofing

Complete internal drainage systems

Exterior Waterproofing

Foundation membrane installation

Crack Repair

Professional foundation crack sealing

Sump Pump Installation

High-capacity drainage solutions

Legal basement apartment conversion in Toronto costs $80,000–$150,000 including underpinning, separate entrance, fire separation, egress windows, plumbing, electrical, and full permit compliance with Ontario Building Code.

Complete Legal Basement Solutions in Toronto

Turn your basement into a legal, profitable rental suite. We handle everything from initial design to final city approval, ensuring your basement meets all Ontario Building Code requirements and maximizes your property value.

Why Go Legal?

  • $1,900-2,500/month rental income
  • 10-20% property value increase
  • Legal protection from fines & lawsuits
  • Tax benefits & mortgage qualification
  • Insurance coverage for rental unit

Risks of Illegal Basements

  • Fines up to $54,000 for violations
  • Immediate eviction orders
  • Insurance claim denials
  • Tenant lawsuits for illegal rental
  • No tax deductions allowed

Ontario Building Code Requirements

Structural Requirements

  • Ceiling Height: Minimum 6'5" (1.95m)
  • Room Sizes: Min 145 sq ft master, 75 sq ft other
  • Hallways: Minimum 36" (915mm) wide
  • Separate Entrance: Direct outside access

Safety Requirements

  • Fire Separation: 1-hour fire rating
  • Egress Windows: 3.8 sq ft minimum
  • Smoke Alarms: Interconnected system
  • CO Detectors: In all sleeping areas

🪟 NBC Egress Window Requirements

Window Opening Specifications

  • Minimum Opening Area: 0.35 m² (3.8 sq ft)
  • Minimum Height: 380mm (15")
  • Minimum Width: 380mm (15")
  • Maximum Sill Height: 1.5m above floor
  • Operation: Without tools or keys

Window Well Requirements

  • Minimum Clearance: 760mm (30") from window
  • Well Depth >900mm: Permanent ladder required
  • Drainage: Connected to weeping tile
  • Cover: Openable from inside without tools
  • Gravel Base: 6" minimum for drainage

Note: Every bedroom requires an egress window. Window wells must maintain 760mm clearance even with outward-opening windows fully extended. We ensure all installations meet NBC requirements.

Complete Service Package

🏗️

Structural Work

  • • Basement underpinning
  • • Foundation reinforcement
  • • Load-bearing walls
  • • Concrete floors
  • • Structural beams
📐

Design & Permits

  • • 3D visualization
  • • Architectural drawings
  • • Permit applications
  • • Engineering reports
  • • City inspections
🔧

Systems & Utilities

  • • Plumbing rough-in
  • • Electrical panel upgrade
  • • HVAC separation
  • • Fire safety systems
  • • Drainage & sewage
🪟

Windows & Exits

  • • Egress windows
  • • Window wells
  • • Separate entrance
  • • Emergency exits
  • • Security doors
🏠

Interior Finishing

  • • Insulation & vapor barrier
  • • Drywall & taping
  • • Flooring installation
  • • Kitchen & bathroom
  • • Painting & trim

Compliance & Safety

  • • Fire separation walls
  • • Smoke/CO alarms
  • • Sound insulation
  • • Ventilation systems
  • • Final inspections

Investment Return Calculator

Your Investment

Conversion Cost: $92,000
Time to Complete: 3-4 months
Rebates/Grants: -$11,000
Net Investment: $81,000

Your Returns

Monthly Rent: $2,400
Annual Income: $28,500
Property Value +: $162,000
ROI Period: 2.8 years

*Based on average Toronto market rates 2024

Recent Legal Basement Projects

Beaches 2-Bedroom Suite

  • • 12" underpinning for 7'6" ceilings
  • • 2 large egress windows installed
  • • Separate side entrance created
  • • Full kitchen and bathroom

Investment: $99,500

Monthly Rent: $2,600

Property Value: +$194,500

North York 1-Bedroom Suite

  • • 8" underpinning to achieve 6'8"
  • • Walk-out entrance to backyard
  • • In-floor heating throughout
  • • Soundproofing between units

Investment: $84,000

Monthly Rent: $2,000

Property Value: +$151,500

Etobicoke Studio Suite

  • • No underpinning needed (6'6")
  • • 1 egress window upgraded
  • • Kitchenette and 3-piece bath
  • • Fire separation completed

Investment: $49,000

Monthly Rent: $1,600

Property Value: +$97,000

Scarborough 3-Bedroom Suite

  • • 14" underpinning for 8' ceilings
  • • 3 egress windows installed
  • • Separate HVAC system
  • • Premium finishes throughout

Investment: $135,000

Monthly Rent: $3,000

Property Value: +$238,000

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

Thousands of

Happy Customers

25+ Years

Serving the GTA

Ready to Legalize Your Basement?

Get a free inspection and quote from Toronto's most trusted waterproofing experts.

No Obligation
Free Inspection
Same Day Booking
24/7 Emergency Service Available