Toronto's Waterproofing & Foundation Specialists
Serving the Greater Toronto Area since 1999, Errigal Construction provides reliable foundation repair, underpinning, and waterproofing. Trust our insured team for expert excavation and structural concrete work.
Waterproofing Basements
Our team installs advanced drainage and membrane systems to ensure your GTA home stays fully dry.
Professional Underpinning
Lower your basement for more space while strengthening your home's structure with our expert methods.
Residential Services
Underpinning & Baseline Excavation
Expand your living area and add value to your property with our precision structural deepening and lowering techniques.
External Moisture Barrier
Keep water out permanently with our robust multi-layered shields designed to withstand the toughest Ontario winter cycles.
Concrete & Structural Support
High-quality concrete pouring for new foundations, sturdy retaining walls, and custom structural slabs tailored to your site needs.
Local Client Testimonials
Errigal Construction identified our foundation leaks immediately and provided a permanent waterproofing solution. The peace of mind during heavy rain is worth everything to our GTA family.
Marc Rossi
The underpinning project was handled with incredible professionalism. Our basement is now spacious and our foundation is stronger than ever. They are truly the best specialists in Toronto.
Priya Sharma
A fantastic experience from start to finish. They waterproofed our exterior and left the yard perfectly clean. It is rare to find such high-quality workmanship and reliability these days.
David O'Connor
Expert Workmanship
Basement Lowering & Underpinning
Create a new basement level with our safe underpinning services, designed to provide stability for years to come.
Sealing & Drainage Fix
Stop leaks at the source with our comprehensive exterior waterproofing systems built specifically for the local climate.
Walls & Structural Pouring
From retaining walls to structural slabs, we provide the heavy-duty concrete solutions required for any residential building project.