Waterproofing Systems
Polyurethane and epoxy waterproofing membranes and coatings for roofs, decks, balconies, parking garages, and foundations.
Our Expertise
Waterproofing Systems
Professional Waterproofing Systems
Water infiltration is the leading cause of concrete deterioration and interior damage. Otto Construction installs polyurethane (PU) and epoxy waterproofing systems. Polyurethane cures into a seamless, flexible, UV-resistant membrane for roofs, decks, and balconies, while epoxy creates a hard, chemical-resistant, easy-to-clean coating for parking garages, basements, and interior concrete floors. We waterproof flat roofs, podium and plaza decks, balconies, terraces, parking decks, and wet areas, and provide below-grade foundation waterproofing, with careful detailing at drains, upturns, joints, and penetrations.
Key Benefits
- Seamless polyurethane liquid-applied membranes
- Epoxy waterproof coatings for garages, basements, and concrete floors
- Flat roof, podium, plaza, and terrace waterproofing
- Balcony and walkway waterproof coatings
- Parking deck traffic coatings with anti-slip finish
- Reinforced detailing at drains, upturns, cracks, and penetrations
- Below-grade foundation waterproofing and leak repairs
How We Handle Every Project
A systematic approach that ensures thorough, efficient restoration from start to finish.
Leak Assessment
Inspect the area, trace leak paths, and evaluate existing waterproofing and substrate condition.
Surface Preparation & Primer
Repair cracks and concrete defects, grind and clean the surface, and apply primer for strong adhesion.
Detailing & Membrane Coats
Reinforce drains, corners, and upturns with fabric, then roll or squeegee the polyurethane or epoxy system in multiple coats to the specified thickness.
Top Coat & Inspection
Apply a UV-resistant or anti-slip top coat where required, then inspect the cured membrane before handover.
Frequently Asked Questions
It is a liquid coating that is rolled, brushed, or squeegeed onto the surface and cures into a seamless rubber-like membrane. It stays flexible, bridges hairline cracks, and follows complex shapes like drains, corners, and upturns without seams.
Related Services
Need Waterproofing Systems?
Our team is available 24/7 for emergencies across the GTA.
Don't Wait — Every Minute Counts
Water damage worsens by the hour. Our emergency team is standing by 24/7 to protect your property and begin restoration immediately.