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Frequently asked questions

We are the number one Leak Detection experts in the United Kingdom. We operate around the clock for our customers

FAQs

Yes we can! However, we may need to carry out minor excavation works to expose it before we repair it.

To avoid further problems arising, the area must be dried once the leak has been repaired. Moisture generally traps itself within surfaces even if you can’t physically see it. If the property has not been dried after a leak, mould and further damage will appear in the décor of your building. This will also cause health implications when mould is taken in via the lungs, which can seriously cause issues to your health.

There are several ways of testing this one of which is to turn off the stop cock for the water feed running into your property. Check to see if the meter gauge is still running then this is a clear indication here is a suspected leak on your side of the property. The stop cock is either located underneath your kitchen ink or alternatively under your stair cupboard. Another form is to look out for sudden damp patches appearing in certain sections of your property.

There are 2 types of stop cocks in your property, there’s a Mains, which comes in via the feed of the street which generally is accessible via the water providers also another inside your private property which caps off the water from the mains street feed to the internal side of your property which is generally located under your staircase or kitchen sink.
There are several ways of testing this. One of which is to turn off the stop cock for the water feed running into your property. Check to see if the meter gauge is still running, this will give you a clear indication of whether or not there is a suspected leak on your side of the property. The stop cock is either located underneath your kitchen sink or under your stair cupboard. Another form is to look out for sudden damp patches appearing in certain parts of your property for example, along your walls or skirting boards.
Unfortunately with some leaks, you can’t prevent all damage, however, we can take certain steps to reduce the amount of damage that will be caused by the leak. The first step in minimizing damage is to turn off your water supply to the house. Try to turn your boiler off, this will stop damage if the boiler pipework runs dry. If possible, start to dry any standing water, you could use a mop if there isn’t a lot of water or maybe some towels.
Check the floor above for signs of damp. If there is a property above you we would recommend you speak to the occupant above to see if they are also suffering signs of a leak. If there is a roof above, please see our answer to “Water stains have appeared in my property after heavy rainfall. What do I do? “. If there is a bathroom or shower above the area this could also be the source of the leak. You could investigate using a simple water test with a showerhead around your bath and shower seals.
This could be a sign of a leak on the central heating system or a problem with the boiler
The ground source heating systems are a very efficient and environmentally friendly way of collecting heat but when they go wrong, they go terribly wrong. Unfortunately, because of the amount of piping buried under the floor they can become very susceptible to leaks, which can be extremely difficult to locate within the floor surface. We have helped various customers locate leaks in these systems with enormous success. We like a completed leak so I guess we’ll keep looking until we find it.
Please don’t hesitate to contact one of our knowledgeable customer service representatives.
This is a service we offer. It includes all the aspects of Trace and Access but also includes fixing the leak which will often only take a day to complete. Trace and access is an Insurance term for non-destructively tracing the area of the leak and then exposing the leak i.e. excavating concrete or removing floorboards. The chances are you may be covered for this under your home or buildings insurance policy but you will have to check your policy wording handbook to see if you’re covered.
Leak Detection is the finding of hidden leaks. Unlike others, we complete leak detection in a non-destructive manner, minimising disruption to your commercial or residential premises.
Non-destructive Leak Detection is where we use various pieces of equipment to pinpoint the area without damaging your property.
Research has shown that a typical household loses 2,000 to 20,000 gallons of water per year due to leaks. As a result, no water leak should ever be overlooked, irrespective of its size. Even a seemingly small leak can lose approximately 20 litres of water every hour!
This may be a sign of a leak, possibly that’s been ongoing a while. Please see our answer to “how do I know I’ve got a leak?” above to get a quick idea of how to diagnose a leak. It is also likely that you will require drying to the property to prevent further mould growth. We can carry out moisture surveys to advise you on the condition of your home and suggest the best resolution for you.
Your property should not show any signs of damp. It may be as simple as a spillage but could be something more complicated. However, if you are still in any doubt, please feel free to contact us and speak to one of our operatives who will talk you through some simple tests.
As a company, we have dealt with a variety of different commercial properties, each with different requirements. We know that each property will have different requirements and different ways they want to work to and we can adapt to that to suit you. Please call us free.
We are generally called out to schools, playgrounds, car parks, fields and generally use specialist methods to detect leeks one of the main see signs is a pooling area on a dry day or a moist spot which is always an indication of a leak. My ground heating system is losing pressure It’s a shame but due to the number of pipes buried in concrete it’s always one of the main causes of a leak in a property and extremely difcult to locate due to the swirl of pipes sometimes but if there’s a leak we are sure to find it.
All modern homes are required to be fitted with an inside and outside mains water stopcock, so don’t worry if you can’t find yours under the kitchen sink! Many properties have their mains water stopcock positioned in an airing cupboard, under the bathroom sink, in a utility cupboard, under your floorboards by your front door, within a garage, cellar or behind a panel next to your boiler. Apartment buildings often share a mains water stopcock so if you are having trouble finding yours why not ask your neighbours?
If one of your radiators is not heating up or is cold, it could just need bleeding. However, if bleeding the radiator does not work or if it is linked with any other symptoms outlined in this FAQ, it could be a sign of a leak.
This could be an indication of a leak on a regular/gravity fed heating system or a leak from a water storage tank. If you can access your storage tanks, look to see which is filling as this will give you an indication of which the system is suffering the problem.
Clear away any furniture that may be positioned directly in front or underneath the water stains. Perform a visual check of your guttering to ensure there are no blockages. This can easily be caused by leaves and other organic material. Check to make sure that there are no drains outside the property that are overflowing. If the leak stops when it stops raining the issue is likely to reappear during the next heavy rainfall so leak detection may still be required. The property may also require drying as the majority of moisture is not visible and is retained within the structure of the building.
are not all visible. These can include damp patches, high water bills, damp smells, boiler issues and even subsidence. Please read further on for more information on how to recognise leaks and what to do. Alternatively, you can contact us and one of our advisors will assist you.
Your plumber will carry out basic methods of tracing a leak whereas a leak detection expert will use specialist machinery and technology to pinpoint a leak without having to tear your premises apart.
Trace and Access (or “Track and Trace”) is an Insurance term for non-destructively tracing the area of the leak and then exposing the leak i.e. excavating concrete or removing floorboards. If you are covered for this it will be detailed in your policy handbook. However, your insurance company is unlikely to cover the actual fixing of the leak.
 
Often your insurer will ask you to find your own leak detection company and they will then reimburse you once the leak is found. Please check your policy handbook to see if you are covered.
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Can a boiler leak be behind a wall in Barnet, London?

Categories: Boiler Leaks London

Yes. Heating pipework can run inside walls, making some leaks difficult to identify visually. Specialist leak detection equipment can help pinpoint temperature differences, moisture and other indicators associated with concealed leaks.

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Can a boiler leak be under the floor in Hammersmith, London?

Categories: Boiler Leaks London

Yes. Leak Detection 24/7 specialises in locating concealed heating leaks, including leaks beneath floors and in underfloor heating systems. Thermal imaging, acoustic equipment and other specialist methods can help identify the likely location before unnecessary excavation takes place.

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Can a central heating leak be hidden under my floor in Islington, London?

Categories: Central Heating Leaks London

Yes. Heating pipes can run beneath flooring, screed and concrete. Leak Detection 24/7 uses specialist detection technology to help locate concealed pipework leaks before invasive access is considered.

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Can a central heating leak cause a warm patch on the floor in Hounslow?

Categories: Central Heating Leaks London

Yes. A concealed heating pipe carrying hot water can create an unusual warm area where a problem is occurring. Thermal imaging can help investigate temperature differences across floors and walls.

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Can a frozen pipe cause a hidden leak in Lewisham, London?

Categories: London Winter Leaks

Yes. A damaged section of pipe may leak after temperatures rise, and the water may travel into walls, floors or ceilings before becoming visible. We can use our specialist leak detection equipment to locate the source of the leak quickly and efficiently. Book your emergency call out today.

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Can a leaking boiler cause low heating pressure in Ealing, London?

Categories: Boiler Leaks London

Yes. If water is escaping from the heating system, system pressure can fall. However, pressure problems can have several causes, so professional diagnosis is preferable to assuming that the boiler itself is defective.

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Can cold weather cause a pipe to burst in Kensington, London?

Categories: London Winter Leaks

Yes. If water inside a pipe freezes, it expands and can place significant pressure on the pipe. When temperatures rise and frozen water thaws, a damaged or compromised pipe can begin leaking or burst. If you need help with leak detection in Kensington click here.

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Can old radiators cause central heating leaks in Brent, London?

Categories: Central Heating Leaks London

Yes. Ageing radiators, valves and connections can deteriorate and eventually leak. Even a small radiator leak can contribute to system pressure loss or water damage.

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Can underfloor heating leak during winter in Richmond?

Categories: London Winter Leaks

Yes. Underfloor heating systems contain concealed pipework that can develop leaks at any time of year. Winter may make the problem more noticeable because the heating system is used more intensively.

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Can underfloor heating leak in Bromley, London?

Categories: Boiler Leaks London

Yes. Underfloor heating contains pipework beneath the floor, so a leak can be particularly difficult to locate. Specialist leak detection can help identify the affected area without immediately removing large sections of flooring.

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Can winter heating cause a central heating leak in Bexley?

Categories: London Winter Leaks

Winter can put increased demand on heating systems because they are used more frequently. Existing weaknesses in radiators, valves, joints, boilers and heating pipework can become noticeable as heating usage increases.

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Can you find a boiler leak that I cannot see in Richmond, London?

Categories: Boiler Leaks London

Yes. Many heating leaks occur inside walls, beneath floors or within concealed pipework. Leak Detection 24/7 uses techniques including thermal imaging, acoustic detection, moisture measurement and tracer gas technology to investigate concealed leaks with minimal disruption.

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Can you find a winter leak behind a wall in Greenwich?

Categories: London Winter Leaks

Yes. Leak Detection 24/7 uses specialist non-invasive equipment including thermal imaging, acoustic detection, moisture measurement and tracer gas to investigate concealed leaks.

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Do boiler leaks always cause visible water damage in Kingston upon Thames, London?

Categories: Boiler Leaks London

No. A small or concealed leak may initially present itself as pressure loss rather than visible water. Damp smells, mould, staining, warm areas of flooring or unexplained deterioration can also indicate a hidden leak.

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How do I know if a pipe has frozen in Hackney, London?

Categories: London Winter Leaks

Warning signs can include reduced or stopped water flow, unusual pipe noises, frost around exposed pipework or a lack of water from normally functioning outlets. A pipe may also leak when frozen water begins to thaw. Contact Leak Detection 24/7 for to book a call out.

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How do I know if I have a central heating leak in Westminster, London?

Categories: Central Heating Leaks London

Common signs include falling boiler pressure, repeatedly topping up the system, damp patches, mould, unusual heating noises, cold radiators, warm spots on floors and unexplained water damage. Some heating leaks remain completely hidden.

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How do I know if my boiler has a leak in Croydon, London?

Categories: Boiler Leaks London

Common warning signs include repeated pressure loss, regularly topping up the boiler, damp patches, unexplained water damage, cold radiators, unusual heating-system noises or an increase in water usage. A hidden leak may not produce an obvious puddle, which is why specialist investigation can be important.

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How do you find an underfloor heating leak in Enfield, London?

Categories: Central Heating Leaks London

Depending on the system and symptoms, engineers may use thermal imaging, acoustic detection, moisture measurement, pressure testing and other specialist techniques to identify the likely location of the leak.

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What causes central heating pipes to leak in Wandsworth, London?

Categories: Central Heating Leaks London

Common causes can include corrosion, ageing components, damaged pipework, failed joints, poor connections and general wear and tear. The exact cause depends on the heating system and location of the leak.

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What makes Leak Detection 24/7 different from other leak detection companies in London?

Category: London

Unlike companies that rely on trial-and-error methods, we use specialist leak detection equipment to accurately locate hidden water leaks without unnecessary excavation or damage to your property. Our focus is on finding the source of the problem quickly and efficiently, saving you time and money.

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What should I do if a pipe freezes in Putney, London?

Categories: London Winter Leaks

If you suspect a frozen or burst pipe, act promptly. Where safe and accessible, isolate the water supply and turn off affected systems. If there is significant water escaping, contact us immediately.

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Who can find a central heating leak without damaging my home in Canary Wharf, London?

Categories: Central Heating Leaks London

The company’s approach is based on non-invasive leak detection wherever possible. Thermal imaging, acoustic detection, moisture meters and tracer gas can help locate a suspected leak while minimising unnecessary damage.

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Why choose Leak Detection 24/7 for leak detection in London?

Category: London

Leak Detection 24/7 provides fast, non-invasive leak detection services across London using the latest technology, including thermal imaging, acoustic listening equipment and tracer gas testing. Our experienced engineers locate hidden leaks with minimal disruption, helping homeowners and businesses avoid unnecessary damage and costly repairs.

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Why do I get more leaks in winter in Fulham?

Categories: London Winter Leaks

Winter places additional demand on heating systems and plumbing. Cold temperatures can also make vulnerable pipework more susceptible to freezing. Existing weaknesses in pipes, joints, radiators and heating systems can become apparent when systems are under greater seasonal demand.

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Why does my boiler keep needing to be topped up in Wimbledon, London?

Categories: Boiler Leaks London

Repeatedly adding water to a heating system is often a sign that water is escaping somewhere. The source could be visible or concealed. Rather than continually topping up the system, a leak detection engineer can investigate why the pressure is falling.

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Why does my boiler need topping up during winter in Barking?

Categories: London Winter Leaks

Repeatedly topping up a heating system is not something to ignore. It can indicate water is escaping somewhere within the system. Leak Detection 24/7 can investigate pressure loss and concealed heating pipework.

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Why does my central heating keep losing pressure in Camden, London?

Categories: Central Heating Leaks London

Repeated pressure loss can indicate that water is escaping from the heating system. Possible sources include radiators, valves, joints, boiler components, concealed pipework and underfloor heating.

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Why is my boiler losing pressure in Chelsea, London?

Categories: Boiler Leaks London

A boiler that repeatedly loses pressure can indicate a leak somewhere within the central heating system. The leak may be around a radiator, valve, heating pipe, underfloor heating pipework or another concealed part of the system. Leak Detection 24/7 can investigate recurring pressure loss using specialist leak detection equipment rather than relying on guesswork.

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Why is my boiler losing pressure more in winter in Sutton?

Categories: London Winter Leaks

If your boiler is being used more frequently and the system is repeatedly losing pressure, this can indicate a heating-system leak. Other faults are possible, so professional investigation can establish the actual cause.

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Why is one radiator cold when my boiler is working in Harrow, London?

Categories: Central Heating Leaks London

A cold radiator can have several causes, including trapped air, balancing problems, valve issues or a heating-system fault. If it occurs alongside pressure loss, dampness or repeated boiler top-ups, a heating leak should also be investigated.

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