Leak Detection in Lewisham
Hidden leaks in Lewisham properties don't announce themselves until water bills spike or structural damage becomes visible. With Thames Water delivering hard water across all of Lewisham, copper pipes develop pin-hole corrosion over 15–20 years; cast-iron soil pipes in Victorian homes corrode from the inside out. Whether your leak is in SE13, SE14, SE15 or SE16, detecting it early saves thousands in remedial work.
Leak detection in Lewisham uses thermal imaging and water-isolation tests to pinpoint hidden damage in copper, steel, or cast-iron pipes. Hard water from Thames Water corrodes pipes faster; Victorian cast-iron soil pipes in Lewisham are especially prone. Detection prevents water damage and environmental fines from leakage into the separate sewer.
Drainage in Lewisham — what local engineers know
Greenwich Council's building records show that 20% of Lewisham housing stock is Victorian, with original cast-iron pipework still in use. Thames Water's hard-water supply (140+ mg/L calcium carbonate) accelerates corrosion in unprotected metals. The borough's mix of Victorian terraces, Edwardian semi-detached homes, and post-war conversions means leak patterns vary widely: Victorian properties leak from soil pipes and underground clay mains; modern flats leak from compression fittings under concrete floors. Underground leaks in Lewisham are difficult to trace without thermal imaging because the separate sewer system complicates drainage routing.
- Hard water supply causes limescale accumulation in boilers, radiators and soil pipe joints — powerflush and descaling demand is high across Lewisham
- Separate sewer system across most of Lewisham: misconnections (e.g. washing machines plumbed into surface water drains) are a known local issue and can result in environmental enforcement action
- Ageing infrastructure in parts of Lewisham means drain blockages from grease, wipes and root ingress remain the most common call-out reasons
- With 32% of properties built before 1920, salt-glazed clay drainage and lead-solder copper pipework are common — pipe collapse, root ingress and joint failure are recurring call-out drivers.
What happens when you call us in Lewisham
- 1 Immediate dispatch. We find the nearest available engineer covering SE13/SE14 and confirm the ETA before the call ends.
- 2 On-site diagnosis — no guessing. The engineer inspects using professional-grade equipment including CCTV where needed and quotes a fixed price before work starts.
- 3 Job complete, report issued. You receive a written completion report. All work is guaranteed — same fault returns within the guarantee period, we come back free.
Who's responsible for drains in Lewisham?
In Lewisham, responsibility for a blocked or damaged drain depends on where the fault sits. As a homeowner you are responsible for the drains within your property boundary that serve only your home. Since the 2011 private sewer transfer, Thames Water is responsible for shared sewers and lateral drains beyond your boundary — even where they run under private land. Road gullies and highway drainage are maintained by Greenwich.
This matters because it determines who pays. If our engineer's CCTV inspection shows the fault is in a shared sewer, we'll tell you — and you can report it to Thames Water rather than paying for the repair yourself. The separate sewer layout that dominates Lewisham affects where these boundaries typically fall, and our local engineers know the SE13, SE14, SE15 networks well enough to identify ownership quickly.
Leak Detection prices in Lewisham
Every Lewisham job is quoted as a fixed price before work starts — what we quote is what you pay, with no call-out fee for providing the quote. However, the final price depends on access (an external inspection chamber is quicker than internal-only access), the pipe material and condition , and how established the blockage or fault is. Request your free quote and we'll confirm the price and your engineer's ETA in the callback.
In summary, Leak Detection in Lewisham is backed by a 12-month workmanship guarantee. Furthermore, every job includes a written completion report. Consequently, you have full documentation if the same fault recurs.