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Drain leak detection

A failed drain is normally detectable in the ground around it well before any collapse.

Call 0333 567 2635

Seven days a week, 7am to 9pm

What usually brings us out

  • A smell that comes and goes near one drain or gully
  • A gully or manhole that backs up in heavy rain
  • Ground that has settled along the line of a drain run
  • Damp in a wall low down, with no plumbing behind it

How we go about it

  1. 1CCTV drain camera survey along the run
  2. 2Dye and water testing to prove which appliance feeds the fault
  3. 3Drain pressure testing where the defect is not visible on camera
  4. 4A marked plan showing the defect and its depth

Drains and drainage in one visit

Drainage repairs normally require a return visit or a specialist contractor. The diagnosis and the report are completed on the day.

Call 0333 567 2635

Jobs like this one

  • Green tracer dye pooling in the void beneath the utility room floor at the waste pipe jointOtford · Aaron Baker

    Supply and heating cleared, leaving the waste

    A steady drip into a basement and a wet utility room floor above it. Supply, hot water and heating were all cleared before dye found the real culprit.

    Waste pipe leak found at utility room corner, repaired.

Reviews of the engineers who do this work

TrustScore 4.7 from 1,629 reviews

Read every review on Trustpilot

Read 7 October 2026

  • Excellent Leak Detection and Repair

    We had a major water leak of approximately 220 litres per hour and, with a holiday booked only a few days later, we urgently needed someone to find and repair it. […] Frank arrived at our house. He was extremely polite, professional and clearly very experienced. He quickly set up the equipment, carried out a tracer gas test and pinpointed the leak to an area just outside our garage underneath the driveway. […] The whole job, from arriving at our house to finding and repairing a 220 litre-per-hour leak, was completed in around three hours.

    Shortened. The marks show where text was left out.

    Peter JorgensenRead it on Trustpilot
  • Fast, effective leak diagnosis and repair

    Fundamentally, the engineer (Mark Pavitt) identified the source of the leak, repaired it and had our house back up and running within the same day. As part of achieving this, he kept the damage to a minimum (only having to cut out sections of the kitchen plasterboard ceiling). He cleaned up the debris, was polite, cheerful and informative of root cause and actions throughout the day. I think the key to success is having an engineer that has expertise in both leak detection and plumbing.

  • Very professional and swift service

    Very professional and swift service. Frank arrived and had detected and repaired the leak within 3 hours. Would highly recommend

Speak to the team that books the engineers.

One call confirms the earliest available date and the price, before you commit to anything.

  • You describe what you have seen
  • We find the nearest available engineer
  • You get a date and a price before booking
0333 567 2635Call now

Seven days a week, 7am to 9pm. Most home insurance covers the cost of finding a hidden leak.