Coleshill is a small market town in North Warwickshire that sits on heavy clay, positioned between Birmingham and Coventry at a strategic junction of the M6 and A446. The clay beneath B46 is consistent and reactive, expanding in wet conditions and contracting in dry spells. That seasonal movement acts on clay pipe joints continuously, gradually widening gaps and creating entry points for tree roots. Our drainage engineers in Coleshill working in the older residential streets off the High Street and Church Hill routinely find root ingress in clay pipes that have been in the ground since the Victorian era.
The historic core of Coleshill, including the streets around the medieval church of St Peter and St Paul and the Georgian High Street, contains drainage infrastructure that has never been comprehensively surveyed. Victorian clay drainage in these areas is approaching or past its designed service life, and joint failures are common. Homeowners in these central properties in Coleshill often notice recurring slow drainage before a full blockage develops. CCTV survey in these streets frequently reveals multiple issues in a single drainage run.
The modern residential estates on the edges of Coleshill, including the housing built to serve the growth associated with the NEC and Birmingham Airport nearby, use PVC drainage of varying quality and age. Calls for drain unblocking in Coleshill from these newer properties typically involve fat and grease accumulation, wipes, or shared chamber blockages in culs-de-sac where multiple properties drain to a single connection point.
Drain unblocking Coleshill commercial and industrial property owners on the A446 corridor contact us about is often related to car park drainage and interceptors. Silt accumulation in road gullies and blocked petrol interceptors are routine jobs for our jetting teams in this part of B46.