Tree roots naturally seek moisture. If a drain has a damaged joint, crack or opening, roots can enter and grow inside the pipework.
The most useful first step is to look at the pattern: what is affected, when it happens, whether the issue is inside or outside, and whether it has happened before.
Quick checks
Use these quick checks to understand the issue:
- The same drain keeps blocking
- The property has mature trees nearby
- Outside drains overflow repeatedly
- Bad smells or gurgling return
- Previous clearing only worked briefly
- CCTV has shown damaged joints before
What the symptoms can tell you
Roots enter through weak points
Roots usually enter through existing cracks, gaps, displaced joints or damaged sections.
Roots trap waste and debris
Once inside the drain, roots can catch paper, wipes, silt and grease.
Temporary clearing may not solve the cause
Clearing roots can improve flow, but the entry point may remain.
When further investigation or help may be needed
Drainage support or CCTV investigation may be useful when symptoms keep returning or the cause is unclear.
- Water is backing up or overflowing
- More than one fixture is affected
- Bad smells or gurgling are present
- The same issue keeps returning
- An outside drain is involved
- The cause is unclear
Useful information to include in the enquiry
A short, practical summary helps the enquiry be understood quickly.
- Your postcode
- What is affected
- Whether it is inside or outside
- Whether water is backing up or overflowing
- Whether bad smells or gurgling are present
- Whether it has happened before
Common causes and practical indicators
Gradual build-up
Grease, silt, scale, wipes or everyday debris can reduce flow over time.
Local restriction
One affected fixture can point to a blockage close to that outlet.
Wider blockage
Several affected fixtures can suggest a restriction further along the run.
Root or pipe damage
Recurring symptoms may need CCTV investigation to understand the cause.
Shared drainage
Neighbouring properties or shared chambers can change the likely next step.
LEEDS DRAINAGE HELP
Get help with suspected tree roots in drains
Send a short description of what is happening, where the issue appears and whether water is backing up or overflowing.
Include your postcode and any details about previous clearing, recurring symptoms or outside drains that are affected.