Floor Drains & Backwater Valves
Professional drain and backwater valve installation to protect your home from sewer backups and flooding.
Many older Toronto homes have drain systems that are prone to cracking, blockages, and backups over time. When drains fail, sewage and water can back up into your basement — a problem that gets worse the longer it's left.
Why Choose Cornerstone for Drain Repairs?
A backed-up drain is an emergency. We combine over 20 years of experience with modern diagnostic tools and licensed expertise to find the problem and fix it properly — not just patch it temporarily.
- Free estimate and up front pricing for all repairs.
- Backwater valve installation for flood and sewer backup prevention.
- Expert drain camera inspection — we show you exactly what's going on.
- Clear explanation of all repairs before any work begins.
- Over 20 years experience serving Toronto and the GTA.
Ready to get started?
Call 416-879-4593 or request your free estimate online.
Our Professional Drain Restoration Process
We follow a precise, 4-step process to ensure your new drainage system is installed correctly, tested thoroughly, and compliant with all municipal codes.
Camera Inspection
We run a camera through your drains so you can see what's going on — blockages, roots, or damage.
Quote & Permits
We explain what needs fixing, give you a price, and handle permits and subsidy paperwork.
Drain Replacement
We remove the damaged sections and install new drain lines and backwater valves.
Testing & Cleanup
We test the system, pour fresh concrete over the floor, and hand over your warranty.
Service Areas
Serving the Greater Toronto Area
We provide emergency drain repairs, camera inspections, and scheduled backwater valve installations across Toronto, Scarborough, Etobicoke, and surrounding regions.
20-Year Drain Repair Guarantee
When we replace your old clay lines with modern PVC/ABS, we back the materials and our concrete restorations with a rock-solid warranty.
Toronto's Drain Protection Team
Get Your Free Floor Drains & Backwater Valves Estimate
Speak with Saverio directly about your project. No obligation, no pressure — just honest advice from someone with 20+ years of experience.
Related Services
Tie floor drain repairs into sump pump, weeping tile, and membrane work while the slab is open.
Install new basement floor drain layouts while gaining headroom or bench footings.
Finish with a new basement slab, sidewalk, or garage pad after plumbing upgrades.