Blocked Drains in Lewisham

Lewisham drainage covers SE4, SE6, SE8, SE12, SE13, SE14, SE23, and SE26, taking in Lewisham, Catford, New Cross, Forest Hill, Sydenham, Brockley, Hither Green, and Honor Oak. The borough's drainage stock is mostly Victorian and Edwardian: 150 mm clay mains under the Brockley and Forest Hill terraces, 100 mm laterals across Honor Oak villas, post-war 150 mm shared mains across Lewisham and Catford, and modern PVCu adoptable runs in the Deptford SE8 regeneration cluster. Target arrival is 30 to 60 minutes across all eight postcodes.

Brockley conservation area and Forest Hill's substantial Edwardian housing stock both have original cast-iron soil stacks now reaching end of service life, and tuberculation in the cast iron is the dominant blockage cause we remove with the Picote cutter heads. Our crews dispatch with the Harben P30 4000 PSI jetting trailer for mainline clearance, a 90 m CCTV crawler with depth-logging for survey work, Sewerin acoustic location for buried laterals, and electromechanical rodding gear for compacted fat. Drain unblock priced at our flat half-hour labour rate, with no callout fee (see /pricing), CCTV survey with annotated report from £350.

Thames Water moderate supply across the borough leaves moderate scale in older copper waste runs, and the combination of scale, fat, and root intrusion at clay joints drives the bulk of our SE4 and SE23 callouts. The River Ravensbourne culverted under central Lewisham adds a surface-water dimension to the SE6 and SE13 fringes, and we install backflow preventers on basement gullies as standard for lower-ground installations near the watercourse.

CIPP cured-in-place lining to BS EN ISO 11296-4 from £500 per metre (3 m minimum run) is our standard repair across the Brockley and SE23 conservation streets where excavation would damage Victorian forecourts and stone-set pathways. We line clay sections in situ, run a post-cure CCTV survey, and replace Class B manhole covers with period-appropriate finishes. Air admittance valves fitted on internal soil-stack reroutes where conservation rules limit external vent terminations.