Pitch Fibre Pipe Repair in Houghton-Le-Spring , Sunderland

The most common sign of pitch fibre failure is a drain that keeps blocking no matter how many times it is jetted. You might find that the toilet is slow to clear or that you have a persistent smell of sewage near your property boundary. This happens because the pipe has lost its circular shape—a process known as de-rounding—or the internal walls have started "blistering."
When these blisters form, they act like a dam, catching toilet paper and solids. If left too long, the pipe will eventually collapse completely. If you live in a post-war estate in Wearside or a planned development in Washington, these issues are particularly common. Identifying the problem early with a CCTV survey can be the difference between a simple internal repair and an expensive, messy excavation.

If your property was built or renovated between 1950 and 1970, it is very likely. The only way to be certain is through a CCTV drain survey. Our cameras can identify the tell-tale signs of dark, oval-shaped pipes and internal blistering that are unique to this material.

Most can be saved if we catch them before they collapse entirely. If the pipe has squashed by more than 40% of its original diameter, re-rounding becomes more difficult. However, in many cases, we can still use mechanical milling to restore enough of the bore to install a structural liner. If the pipe has completely caved in, a localized excavation may be the only option.

The material is essentially layers of paper soaked in tar. Over time, water makes its way into the layers, causing them to delaminate and swell inwards. Heat (from washing machines and dishwashers) and chemicals can speed up this process, leading to the "bubbles" or blisters that cause constant blockages.

Yes. The resin liners we use are designed to last for several decades. They are resistant to root ingress, chemical erosion, and further ground pressure. Once the resin cures, it forms a hard, structural shell that no longer relies on the old pitch fibre for its strength.

This depends on your specific policy. Some insurers view pitch fibre failure as a "gradual deterioration," which they may not cover. However, if the pipe has suffered a sudden fracture or accidental damage, you might be eligible. We can provide the CCTV footage and technical reports required to support your claim.

Most domestic repairs in the Sunderland area are completed in one day. Because we don't need to wait for trenches to be dug or concrete to set, we can usually have your toilets and sinks back in full use by the evening.