Mainline Drains
Tree roots growing into and blocking a clay drain pipe underground

Old Clay Drain Pipes

Many London properties still rely on the original Victorian clay drain pipes installed 80–150 years ago. While clay is durable, these old pipes have vulnerabilities — mortar joints that crack and separate, walls that erode over time, and a brittle nature that doesn't tolerate ground movement.

What to Look For

  • Property built before 1960 with original drainage
  • Recurring blockages at the same point
  • Root ingress through deteriorated mortar joints
  • Visible damage at manholes — cracked, chipped clay pipes
  • Slow drainage that's gradually worsened over years
  • CCTV survey showing joint displacement and erosion

How We Diagnose the Problem

A CCTV survey of old clay pipes typically reveals multiple defects — displaced joints, root ingress, erosion, and often partial collapses. We assess each section and provide a condition rating to prioritise repairs.

Think you might have old clay drain pipes? A professional inspection will confirm the diagnosis.

How We Fix It

Drain relining is ideal for old clay pipes — the seamless liner seals all joints, covers cracks, and creates a smooth new bore inside the old pipe. For sections that have fully collapsed or are too deformed, targeted excavation replaces just the worst sections while relining handles the rest.

Need a Professional Inspection?

If you're experiencing persistent issues, don't wait for the problem to worsen. Our engineers use proven methods to diagnose accurately. Call for emergency response or book a scheduled inspection.

Old clay drains causing problems? A CCTV survey will reveal their true condition.

Old Clay Drain Pipes FAQ

What are the signs of old clay drain pipes?
Property built before 1960 with original drainage. Recurring blockages at the same point. Root ingress through deteriorated mortar joints.
How do you diagnose old clay drain pipes?
A CCTV survey of old clay pipes typically reveals multiple defects — displaced joints, root ingress, erosion, and often partial collapses. We assess each section and provide a condition rating to prio...
How do you fix old clay drain pipes?
Drain relining is ideal for old clay pipes — the seamless liner seals all joints, covers cracks, and creates a smooth new bore inside the old pipe. For sections that have fully collapsed or are too de...

Need an Expert?

Get in touch today for a free, no-obligation quote. Our team is ready to help — 24/7.