Drainage Services in Croydon

Croydon sits where London Clay meets chalk to the south, near the source of the River Wandle, and this transition affects drainage across the borough. The Victorian terraces of Thornton Heath and South Norwood typically run on old clay combined sewers, laid at a time when the area was far less densely built, and these can be tested by the volume of surface water generated by today's paved-over gardens and driveways.

Purley and Selsdon, further south on the chalk downland, generally have better natural drainage but still see clay-pipe root ingress issues in mature, tree-lined streets. Central Croydon's high-rise developments sit on more modern plastic drainage with pumped systems in places, while the borough's older combined sewer network, shared with the wider Thames catchment, means heavy storms can put real pressure on capacity in low-lying areas near Norbury and the Wandle.

For Croydon properties we start with a CCTV drain survey, particularly valuable given the mix of Victorian combined sewers, mid-century clay pipe and modern plastic across the borough. High-pressure jetting clears root and silt blockages effectively in the older terraced streets, and no-dig lining is frequently the practical choice for repairs beneath shared driveways and busy roads where excavation would cause significant disruption.