If you’re experiencing repeated drainage issues or blockages in an older property in Southampton, you could be dealing with a hidden problem underground: pitch fibre pipes.
Once a cost-effective solution, pitch fibre is now a common cause of drain collapse, deformation, and blockages — especially in homes built between the 1950s and 1970s.
At Southampton Drains24, we help homeowners and landlords identify, diagnose, and repair damage caused by pitch fibre — using modern, no-dig repair techniques.
What Are Pitch Fibre Pipes?
Pitch fibre pipes were introduced in the UK in the 1950s as a cheaper, lightweight alternative to clay or cast iron. Made from a mix of wood cellulose fibres and coal tar (pitch), these pipes were mass-produced and widely installed in post-war housing.
They remained popular through the 1970s, especially in housing estates and council homes across southern England — including many areas of Southampton such as:
- Millbrook
- Bitterne
- Thornhill
- Weston
- Shirley
- Portswood
How Were Pitch Fibre Pipes Made?
The manufacturing process involved:
- Wood pulp or cellulose fibre was rolled into sheets.
- The fibres were impregnated with coal tar pitch (a thick black residue from coal distillation).
- The sheets were wound into tubular shapes and heated to form rigid pipes.
- The result: lightweight, rot-resistant pipes that were easy to transport and install.
At the time, pitch fibre seemed ideal — but decades later, its weaknesses have become clear.
Why Are Pitch Fibre Pipes a Problem?
Pitch fibre deteriorates with time, especially under constant moisture and pressure. Problems include:
- Blistering or softening from hot water and detergents
- Deformation from ground pressure
- Internal collapse from delamination
- Root intrusion through weakened joints
- Blockages due to narrowing or misshapen pipes
In many cases, the damage goes unnoticed — until it’s too late and you’re dealing with blocked drains in Southampton, foul smells, or even surface flooding.
How Do I Know If I Have Pitch Fibre?
If your home was built between 1950–1980 and you’re experiencing drainage problems, you may have pitch fibre without knowing it.
The only way to confirm is with a CCTV drain survey. At Southampton Drains24, we insert a small camera into your drainage system to inspect the pipe material, alignment, and condition. If pitch fibre is detected, we’ll advise on the best repair options.
Repairing or Replacing Pitch Fibre Pipes
We use a variety of modern, no-dig drain repair techniques, including:
✅ CIPP Lining (Cured-In-Place Pipe) – Creates a new pipe within the old one
✅ Patch Lining – Ideal for short sections of damage
✅ Root cutting & descaling – Removes debris and restores flow
✅ Pipe replacement – If collapse is severe or access allows
Most repairs can be done without excavation — keeping your garden, driveway, or floors untouched.
Why Choose Southampton Drains24?
✔ Local engineers who know Southampton’s infrastructure
✔ No call-out fees
✔ Fully insured and certified
✔ CCTV reports and clear repair plans
✔ 24/7 availability for emergency drainage issues
Worried About Pitch Fibre Pipes?
Don’t wait for a serious problem to develop. If you’re dealing with blocked drains in Southampton or suspect your property has pitch fibre, let our team inspect it before further damage occurs.
📞 Contact Southampton Drains24 today for a CCTV drain survey or no-dig repair quote.
We’ll help protect your home — from the underground up.
