Collapsed Drain Under House

A collapsed drain running beneath your house is one of the most challenging drainage repairs. These pipes are difficult to access, and a collapse can cause serious structural issues including subsidence, damp, and persistent foul odours inside the property.

What to Look For

• Persistent damp or wet patches on ground floor walls
• Foul smells inside the property, especially at ground level
• Cracks in internal walls or floors
• Floor tiles lifting or laminate flooring warping
• Mould growth in rooms above drain runs
• Increased rat or insect activity inside the home

How We Diagnose the Problem

CCTV surveys access the drain from external manholes and inspect the full run beneath the building. We use drain tracing to map the exact route under the house and sonar technology to identify voids caused by soil washout around the collapsed pipe.

How We Fix It

Where possible, we use no-dig relining to repair the pipe from inside, avoiding the need to break through floors. When excavation is necessary, we work carefully through the property with dust sheets and protective measures, reinstating all surfaces after the repair.