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.

🔧 20+ Years of Trusted Expertise

📍 Based in Toronto | Serving: Mississauga, Oakville, Burlington, Hamilton, and the GTA

✅ Licensed
✅ Insured
✅ Master-Planned Waterproofing

Blogs

Common Basement Waterproofing Myths That People Still Believe

Backwater Valve Installation in Hamilton: Cost and Benefits

What Homeowners Should Know Sump Pump Replacement Cost

Leaking Basement Wall Repair Cost: What Impacts the Price?

Best Service

416‑333‑2212

Phone Number

info@waterproofing4less.ca

Email Address

Frequently Asked questions

What is a sump pump and why is it essential for Toronto homes?

A sump pump is a flood prevention device installed in a sump pit that automatically removes excess water, protecting your Toronto home from basement flooding and structural damage.

How do I know if my Toronto home needs a sump pump?

Look for signs such as water pooling, persistent dampness, and water stains in your basement—indications that your drainage system is overwhelmed.

What is your installation process for sump pumps in Toronto?

Our process includes a detailed site assessment, excavation and sump pit creation, installation of a high-performance sump pump with a secure discharge line, and integration of a battery backup system with rigorous testing.

Which brands of sump pumps do you install in Toronto?

We install high-performance sump pumps from trusted brands like Zoeller and Liberty, ensuring durability and efficient water removal.

Do your sump pump systems include battery backup and smart monitoring?

Yes, our systems feature battery backup and optional smart sensors to ensure continuous operation during power outages and extreme weather.

How do you ensure your sump pump installations comply with Toronto building codes?

We adhere strictly to local regulations by conducting comprehensive utility locates (for hydro, gas, Bell, Rogers, etc.) before excavation, ensuring safe and compliant installations.

What warranties do you offer for sump pump installations in Toronto?

Our installations come with a robust 25‑year transferable warranty on waterproofing work and a 3‑year manufacturer warranty on our mechanical sump pumps.

How can I schedule a free consultation for sump pump installation in Toronto?

Simply call us at 416‑333‑2212 or email info@waterproofing4less.ca to book your free consultation and receive a customized solution for your Toronto home.

Do you service homes outside Toronto as well?

Yes! We also offer Sump pump Services in Burlington, Hamilton, Mississuaga and Oakville.

Get Your Drainage And Waterproofing Issues Resolved Today