Leak Detection Services
Ten specialist services covering every type of hidden water leak — all using non-invasive technology.
Trace & Access
Your insurer needs the leak traced and documented before they pay out. We manage the full trace and access process and deliver a written report accepted by all major insurers.
Learn more
Ceiling Leak Detection
Damp patches, staining or plaster bulging from the flat above? We locate inter-floor leaks using thermal imaging and tracer gas without lifting floors or breaking walls.
Learn more
Central Heating Leaks
Boiler losing pressure? Damp patch near a radiator? We trace pinhole leaks in sealed heating systems using non-invasive central heating leak detection. No random digging.
Learn more
Mains Water Leaks
Water bill doubled for no obvious reason? Our mains water leak detection locates supply pipe leaks underground across all pipe materials and depths.
Learn more
Underfloor Heating Leaks
Warm patch on the floor, pressure drop on the manifold, or damp screed? We find underfloor heating leaks through concrete, tile and engineered floors. No excavation until the exact point is confirmed.
Learn more
Boiler Leak Detection
Water pooling under your boiler or pressure dropping repeatedly? We trace visible and concealed boiler leaks and carry out repairs in a single visit with Gas Safe qualified engineers.
Learn more
Drain Leak Detection
Slow drainage, damp near a soil stack or unexplained odours? We locate drain leaks under slabs, behind walls and in underground runs using pressure testing and acoustic detection.
Learn more
Water Damage Restoration
Damp walls, stained ceilings or warped floors after a leak? We manage extraction, structural drying and full remediation, restoring your property to pre-damage condition.
Learn more
Flat Roof Leak Detection
Membrane failure, pooling water or damp penetrating through a flat roof? We use electronic leak detection technology to pinpoint the exact breach without removing the membrane.
Learn more
Damp Investigation
Not sure if it's a leak or rising damp? Our damp investigation identifies the cause and extent of moisture ingress before you spend money on remediation that won't fix the problem.
Learn moreNo Find No Fee
If our engineers can't locate the source of your leak, you don't pay for the investigation. We're confident enough in our methods to stand behind it on every job.
Service FAQs
Whether you've spotted damp on a ceiling, you're losing boiler pressure, or your water bill has doubled for no obvious reason — these are the questions we get asked most before a first booking.
How do I know which service I need?
If you're unsure, that's fine — the symptom is usually enough to get started. Damp patches on a ceiling or floor usually point to an inter-floor or underfloor issue. A boiler losing pressure repeatedly suggests a sealed-system leak. A rising water bill with no visible cause often means a mains supply leak underground. Call us or fill in the estimate form and we'll advise you on the right service before you commit to anything.
How does non-invasive leak detection work?
We use three main methods depending on the leak type and access available. Thermal imaging detects temperature differentials caused by escaping water. Tracer gas (a safe, inert hydrogen-nitrogen mix) is introduced into the pipe and detected at the surface with a sensitive probe. Acoustic detection picks up the sound signature of water escaping under pressure. In most cases we combine two or more methods to confirm the exact location before any physical work begins.
How quickly can you attend?
For emergencies we aim to be on-site within 2 to 4 hours across London. Scheduled appointments are typically available within 24 to 48 hours. We cover all 32 London boroughs plus Surrey and Kent, and we operate 24 hours a day, 7 days a week — including bank holidays.
Will you damage my property during the investigation?
Our detection methods are deliberately chosen to avoid damage. We do not open walls, lift floors or break tiles during the investigation itself. Once the leak source is pinpointed with certainty, we will discuss the most minimal access point needed for repair — and in many cases our engineers can carry out that repair on the same visit.
How much does leak detection cost?
Pricing depends on the service type, property size and access conditions. We provide a clear, fixed price before any work begins — there are no hidden charges or call-out fees added afterwards. Trace and access investigations are often covered in full by building insurance, and we provide the documentation your insurer needs. Contact us for a no-obligation estimate specific to your situation.
Do you provide reports for insurance claims?
Yes. Every investigation includes a written report with findings, photographs and repair recommendations. Our reports are accepted by all major UK insurers and loss adjusters as evidence of the leak source for trace and access claims. We can also liaise directly with your insurer or loss adjuster if needed.
GOT A LEAK?
WE'RE READY.
Same-day and emergency appointments available across London and the South East. Most leaks found and fixed in a single visit.