Drain Excavation in Banbury

Signs you need drain excavation help

These are common signs that you need drain excavation. If you spot one, act early, because small faults often grow.

• ✓ A CCTV survey has confirmed a complete pipe collapse or loss of pipe shape that cannot be relined
• ✓ There is visible subsidence or a sinkhole forming above a drainage route in your garden or driveway
• ✓ Sewage is leaking into the surrounding ground, causing contamination or persistent damp
• ✓ Previous relining or patch repairs have failed because the underlying pipe structure is too degraded
• ✓ You need to replace a section of pipe to accommodate a new connection for an extension or development

Our process

These steps show a typical visit. However, the exact method depends on what the engineer finds on site.

1. 1.
   Survey and Plan

   We review CCTV footage to plan the excavation precisely — marking out the dig area, confirming pipe depth, and identifying any utilities or obstacles. You receive a clear scope of work before we start.
2. 2.
   Excavation

   We carefully dig down to the damaged pipe using appropriate equipment for the location — mini-digger for open areas, hand-dig for confined spaces or near buildings. Shoring is installed as needed for safety.
3. 3.
   Pipe Replacement

   The damaged section is removed and replaced with new pipework laid to the correct gradient. Connections to existing upstream and downstream pipes are made using appropriate adaptors and sealed joints.
4. 4.
   Backfill and Reinstatement

   The trench is backfilled in compacted layers to prevent future settlement. The surface is reinstated to match the surrounding area — turf, paving, concrete, or tarmac — leaving a neat, professional finish.