Nuneaton was built on coal, and the coal mines that operated beneath the town for over a century have left a legacy in the ground that directly affects drainage. Mining subsidence is an active issue in parts of Nuneaton and the surrounding area, even where mining ceased decades ago. Ground settlement caused by subsurface voids and compacting mine workings can cause drainage pipes to settle unevenly, lose their gradient, and crack at joints. Our drainage engineers in Nuneaton are alert to this risk and use CCTV survey to identify whether a blockage is caused by a standard accumulation or by pipe displacement linked to ground movement.
The Victorian town centre of Nuneaton, including the streets around Bond Gate, Market Place, and the older residential terraces of CV11, is served by original combined sewer systems that carry both surface water and foul sewage in the same pipe. These combined systems are prone to overloading during heavy rainfall, which causes sewage to back up through the lowest points in the system and surface through gullies and drain covers in properties and on the street. Residents in these areas of Nuneaton contact us regularly for drainage issues after heavy rainfall events to address the aftermath of a combined sewer surcharge.
The former colliery sites that are now being developed as residential areas around Nuneaton present a particular drainage installation challenge. Unstable ground over historic mine workings requires specialist assessment before any new drainage is installed. This affects drain unblocking Nuneaton calls from newly built properties on former colliery land, where the drainage installation itself may not have been designed with the site's specific ground conditions in mind.
When residents in the post-war estates of Nuneaton contact us for drain unblocking, the issues are more straightforward. Properties built from the 1950s through to the 1970s on these estates use concrete and early PVC drainage that is now reaching the end of its designed service life. Pitch-fibre deformation and concrete pipe scaling are the most common failure modes in these mid-century properties. We assess each property individually and recommend repair or relining based on what the CCTV reveals. For the neighbouring former mining town of Bedworth, where similar subsidence risks apply, see our dedicated page.