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Extended homes on the ridge

Leak detection in Chadwell St Mary for extended homes

Most of Chadwell St Mary went up during the 20th century. Where a house has been extended since, its supply or heating pipe may lie under a newer floor, and leak detection in Chadwell St Mary allows for that.

Supply pipes under extensions traced

Boiler pressure loss investigated

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Chadwell St Mary sits on the ridge between Grays and East Tilbury, and most of its housing was built in the 20th century: semis and terraces in the main, plenty altered since. A house that looks simple from the road may hide many pipe changes.

An extension can be built straight over an old supply pipe, and a new kitchen often moves the heating pipes. So when a meter turns or a boiler loses pressure, the culprit may lie beneath a room added long after the pipe was laid. Our first task is naming the pipe.

A narrow street of Victorian red brick terraced houses with a church tower at the end, typical of an Essex town White weatherboarded cottages with picket fences along a village street, typical of Essex

Jobs like these come up in Chadwell St Mary

Supply pipe under a rear kitchen extension

The property

A 20th-century semi whose single-storey rear kitchen extension sits on a concrete floor laid straight over the old supply pipe's route.

The problem

A letter reported water passing all the time. The house was dry, and the stop tap now sat in a cupboard inside the extension.

How we found it

The dial kept moving with the stop tap shut, so the supply pipe was losing water. Outside, the microphone heard little; tracer gas then rose where the extension floor meets the old wall, and listening there caught the leak.

The outcome

Our mark and photographs went into the report, which the owner used to ask whether their policy's supply pipe cover applied. The repair was priced separately.

Pressure loss traced to pipes under an extension bedroom

The property

An end-terrace with a two-storey side extension, its new bedroom radiators fed by pipes under the floorboards and joined onto the house's original heating.

The problem

Every few days the boiler gauge dropped and needed refilling, yet no ceiling or wall showed a mark. Its service engineer had passed the boiler and suspected a hidden pipe.

How we found it

Closing valves showed that only the extension's circuit was losing pressure. Once the radiators were hot, thermal imaging through the bedroom floor showed heat pooling beside one pipe, and tracer gas rose at that board.

The outcome

Only one board had to come up. We priced the heating pipe repair separately and did it while we were there.

Who calls us from Chadwell St Mary

Owners with a letter about the meter

The letter reports constant use without saying where. Before anyone digs, we find out if the outside supply pipe or an indoor pipe is to blame.

Households topping up the boiler

Your boiler has been passed, yet the gauge keeps sinking. Jot down every refill, and flag any sealant in the system, since it can stop tests working.

Owners of extended houses

Pipes laid before the extension may now run under concrete or tiles. They are traced from above, so the repair opening stays over the leak.

Which water company is yours?

The quickest way to know your supplier in Chadwell St Mary is the company name on your water bill, or on the leak letter itself. Raise the letter, and any leak allowance, with that company. Its side of things finishes at your boundary or meter; the stretch running indoors from there is generally yours.

Splitting supply, hot water and heating apart

1

Separate supply from heating

The meter, read before and after the stop tap is turned off, speaks for the supply pipe. The boiler gauge, with the heating isolated, speaks for the heating.

2

Find the length that leaks

Valves let us hold one part at a time: outside supply, indoor cold, hot side, each heating circuit. Whatever cannot hold pressure is where the search goes next.

3

Pin down the point

On that length Charlie uses whichever method suits it, such as listening outside or thermal imaging on warm heating pipes, then a second method before marking.

Methods we use in Chadwell St Mary

Pressure testing

Sealing a section and watching its gauge shows whether that part is losing water. It splits supply from heating and one circuit from the next, but cannot find the hole.

Thermal imaging

Run the heating for a while before we arrive. Warm pipes then show as lines through carpet or tiles, and a leak as warmth spreading beyond the line.

Acoustic listening

Outside, a ground microphone follows the supply pipe and hears the leak loudest above it. Under an extension's concrete floor the sound can fade, and tracer gas takes over.

Supply pipe cover on home policies

Some home policies include the buried supply pipe, and a few add trace and access for finding a leak on it. Check your schedule or ask your insurer before booking. The report gives the location, methods, readings and photographs. It is released after payment, and the insurer alone decides whether the claim is met.

Common questions in Chadwell St Mary

Not for the test. Closing it while we watch the meter still splits an outdoor leak from an indoor one. It does mean the supply pipe now runs under the extension floor, so tell us roughly where the old back wall was.

Yes. The search itself happens from above. Tracer gas and acoustic listening work through concrete and tiles, and the spot is only marked once another method backs it up. Only that patch then needs opening for the repair, which is priced separately.

No. No find, no fee on home water leaks does not cover central heating; full conditions are on our terms page. You agree a price for heating work before we come. It covers a half day or a whole day of searching, and a quick find leaves it unchanged.

If we are looking for a heating leak, yes: run it beforehand so the pipes are warm enough for thermal imaging. Leave the pressure as it is, and tell us if leak sealer has gone in, because it can stop the testing working.

Someone has to be there to open up and walk us to the meter, stop tap and valves. Visits are booked by the half or full day, so plan to be around for that long, or ask someone else to be.

Around Chadwell St Mary

Grays is just to the west and Tilbury lies below the ridge to the south. East Tilbury and Stanford-le-Hope are to the east, and we also reach West Thurrock and South Ockendon.

Leak detection in Tilbury Leak detection in Grays Leak detection in East Tilbury Leak detection in West Thurrock Leak detection in South Ockendon Leak detection in Stanford-le-Hope Leak detection in Essex
Victorian bay-fronted houses on a hillside road above an estuary, typical of an Essex seaside town

Leaks we trace

Water leak detection Leaking water main Central heating leak detection Leaking underfloor heating Shower leak detection Underground water leak detection Gas pipe leak detection Thermal imaging leak detection Acoustic water leak detection Tracer gas leak detection Commercial leak detection Trace and access leak detection Leak detection for landlords Water leak repair

Useful guides

Central heating leak sealer: what it can and cannot do How to choose a leak detection company: questions worth asking How to read a water meter and use it to check for a leak Lead water pipes in UK homes: how to spot one and find a leak

Leak under a Chadwell St Mary extension?

Call 07700 102 008 and tell us when the extension went on and where the stop tap is now.

Call 07700 102 008 Get a quote
East Anglian Leak Detection