Carl McDowell

About Carl McDowell

Carl McDowell is a seasoned waterproofing specialist and senior consultant at Canada Waterproofers, bringing over 28 years of hands-on experience protecting homes across the Greater Toronto Area. As a licensed Master Plumber with specialized certification in below-grade waterproofing systems, Carl has overseen thousands of foundation assessments and waterproofing installations throughout Toronto, Mississauga, Brampton, Oakville, Vaughan, and surrounding communities.

With a deep understanding of the unique challenges facing GTA homeowners—from clay-rich soil composition and high water tables to aging infrastructure and extreme weather patterns—Carl combines technical expertise with a passion for educating property owners about lasting solutions to water intrusion problems.

As President of Canada Waterproofers Inc. (founded March 2015), Carl has built a reputation for integrity, quality workmanship, and transparent communication. His company maintains BBB accreditation with an A+ rating and has earned multiple HomeStars Best Of Awards backed by hundreds of 5-star customer reviews.

Professional Expertise

Qualifications & Certifications

• Ontario College of Trades Licensed Plumber (License #13947296, expires February 2027)
• Master Plumber Certification – Ontario, Canada
• IICRC Water Damage Restoration Technician (WRT) – Institute of Inspection Cleaning and Restoration Certification
• Building Renovation License – Ontario Building Code compliant renovations
• Drain Layer License – Authorized for underground drainage system installation
• Preferred Contractor for Halton Region – Approved municipal contractor status
• WSIB Coverage – Workplace Safety and Insurance Board compliance
• BBB Accredited Business with A+ Rating since February 2016
• HomeStars Best Of Award recipient (multiple years)

Areas of Service

Carl and the Canada Waterproofers team serve homeowners throughout the Greater Toronto Area, including:

• Toronto and all surrounding boroughs
• Mississauga, Oakville, and Halton Region
• Brampton, Vaughan, and York Region
• Scarborough, North York, and East GTA
• Hamilton, Burlington, and surrounding areas
• Uxbridge, Milton, and extended GTA communities

Professional Approach

Comprehensive Assessment Process

Before recommending any waterproofing system, Carl conducts a structured on-site assessment that includes:

• Soil Analysis: Identifying clay concentration and drainage capacity around your foundation
• Moisture Readings: Interior and exterior measurements that guide membrane selection and system design
• Foundation Inspection: Assessing wall type (poured concrete, block, or stone), visible cracking, efflorescence, and cold joint condition
• Drainage Evaluation: Reviewing existing sump pump performance, weeping tile condition, and exterior grading

Commitment to Education

Carl believes that informed homeowners make better decisions. Every project includes clear explanations of:

• Why water intrusion is occurring in your specific situation
• How the recommended solution addresses the root cause
• What to expect during installation and long-term maintenance
• Transparent pricing with detailed written quotes

Published Articles & Resources

Carl regularly contributes educational content to help GTA homeowners understand waterproofing science and solutions:

• "The Science Behind Wet Basements in the GTA" – Comprehensive guide to soil, hydrology, and construction factors
• "Smart Interior Basement Waterproofing in Toronto" – When interior solutions are the right choice
• "How to Shut Off Your Home's Water Supply" – Emergency preparedness guide
• "Basement Waterproofing Cost and Benefits" – Investment analysis for homeowners
• "French Drain Installation to Stop Backyard Flooding" – Case study and solution breakdown
• "Backwater Valve Cost in Toronto and GTA" – Municipal requirements and pricing guide

Client Testimonials

"Carl was very professional and he knew his stuff. The crew that worked on my project were just amazing. The level of detail that your guys showed was the best I've ever seen."

"Carl and Slava were just amazing and the knowledge that they have is just incredible. Every step was explained to me in detail and I can now honestly say that I understand how waterproofing really works."

"Carl was a pleasure to work with and he is the most polite guy that I have met in a long time. The quality of waterproofing was great and I would recommend them to anyone."

Contact Information

Free estimates available. Licensed, insured, and backed by a fully-transferable lifetime warranty.