Order summary
Roots do not break pipe so much as find openings. Clay tile and older cast-iron laterals have joints every few feet, and small leaks there release moisture that roots follow. Once inside, fine roots knit into a net that snags toilet paper and solids. The result is a slow drain that gets worse until it backs up.
Numbered steps
- Note when drains slow and whether all fixtures are affected.
- Look at the trees between your house and the street, yours and the City's.
- Ask a plumber to clear the line and show you what came out.
- Book a camera inspection to see how many joints are affected.
- Decide on maintenance clearing, relining or replacement based on the footage.
- Call 311 if the roots appear to come from a City tree.
Plumber's tip: Roots are most active in late summer and fall. A backup at that time of year, with nothing unusual going down the drain, often means roots.
Errors we see on site
- Pouring chemicals hoping to kill roots without clearing the line.
- Planting willows or silver maples near the sewer path.
- Paying for repeated clearings for years without a camera look.
- Cutting down a tree without the required permit.
When the desk should come out
Call when the main drains slow or the floor drain backs up. We clear the line and can inspect with a camera; see tree root removal and repiping for supply-side upgrades. If pressure is low as well, see our pressure leaflet.
Quick checklist
- Know where your lateral runs
- Camera the line before planting large trees
- Clear on a schedule if roots return
Your questions on this one
Can roots get into plastic sewer pipe?
Rarely, if joints are sound. Plastic has fewer joints and tighter seals.