Meet Slava Koval
Co-Owner | Master Plumber | Drain & Waterproofing Expert
With over 20 years of proven experience in plumbing, waterproofing, and drain repair, Slava Koval is more than just the co-owner of Canada Waterproofers—he is the engine behind the company's technical excellence, client satisfaction, and trusted reputation across the Greater Toronto Area.
From managing large-scale emergency water main repairs to overseeing heritage building preservation at the University of Toronto, Slava brings a rare combination of deep field knowledge, certified trade credentials, and hands-on leadership to every project.
Certified Master of the Trade
Slava holds multiple high-level licenses and credentials that reinforce his authority and technical legitimacy:
✅ Ontario College of Trades Plumbing License (306A) – Journeyperson plumber certified in residential and commercial systems.
✅ Master Plumber License (City of Toronto) – Permits advanced planning, supervision, and hiring within licensed plumbing operations.
✅ Building Renovator License (City of Toronto) – Authorizes structural repairs, foundation work, and waterproofing compliance.
✅ Drain Contractor License (City of Toronto) – Ensures legal, code-compliant installation and repair of weeping tile, storm, and sanitary sewer systems.
🛠 Services He Specializes In
Slava is a seasoned specialist in:
Basement Waterproofing (Interior & Exterior Membranes, Crack Sealing)
Foundation Repairs (Structural Stabilization, Leak Solutions)
Sump Pump Installation (Battery Backups, Pit Systems, Discharge Management)
Weeping Tile & Drain Systems (Full Replacements, Drainage Correction)
Plumbing & Sewer Repair (Main Line Replacement, Sewer Backup Fixes, Emergency Leak Control)
He doesn't just supervise these services—hs done them himself for decades, and often still does.
🏗 Projects That Define Expertise
Slava’s hands-on career has taken him to some of Ontario’s most complex job sites. Noteworthy projects include:
🏛 University of Toronto Heritage Building Waterproofing
Preserving the historical structure while eliminating deep-set water intrusion in aged stone foundations. Slava used custom sealing and non-invasive excavation methods, ensuring no compromise to heritage integrity.
🏙 Downtown Toronto Tight-Access Waterproofing
Faced with zero excavation room and adjacent infrastructure, Slava coordinated precision dig-by-hand techniques, minimized disruption, and ensured safe installation of waterproofing systems without impacting surrounding structures.
🚨 Emergency Water Main Repairs
Responding to urgent water main breaks in aging Toronto neighborhoods, he executed rapid diagnostics, permits, excavation, and repair—restoring service within 24 hours and preventing catastrophic property damage.
🧱 Jobs Others Refuse
From collapsing foundations to severe sewer backups, Slava personally leads projects others decline. Why? Because he thrives on problem-solving and building lasting trust through action.
🤝 Leadership That Stands Out
As Co-Owner of Canada Waterproofers, Slava oversees:
- Project Supervision — From design to delivery, every detail is monitored.
- Client Consultations — Providing honest, transparent estimates and education.
- Team Leadership — Training and directing crews to uphold the company’s top-quality standards.
- Warranty Management — Ensuring every service is backed by a lifetime warranty promise.
His colleagues describe him as a respectful and motivating leader—always willing to get hands-on, lead by example, and deliver excellence without compromise.
💬 In His Own Words
> "There’s no waterproofing or plumbing challenge I won’t take on. The key is experience, the right mindset, and a real commitment to doing things the right way."
Slava believes in delivering solutions that not only fix problems but protect families and investments for decades. His approach is solution-focused, clean, honest, and deadline-driven.
🌟 What Clients Say
Customers describe Slava as:
“The best tradesperson we've ever worked with.”
“Transparent, professional, and deeply knowledgeable.”
“The only one who clearly explained the problem and the solution.”
🏁 Outside the Job Site
When he’s not waterproofing or solving plumbing emergencies, you’ll find Slava at a car show, enjoying motorsports, or reconnecting with nature through camping, hiking, or mountaineering. He thrives in challenging terrains—whether it’s a flooded crawl space or a steep mountain trail.
