Trace & Access Leak Detection London

How Trace & Access Leak Detection Works

When you discover signs of a water leak in your London property, whether that is a damp patch on a ceiling, unexplained moisture on a wall, or a sudden spike in your water bill, the first step is finding exactly where the leak is coming from. That is where trace and access comes in. It is the professional process of locating a hidden leak and gaining the access needed to repair it.

At Leak Detect London, we use a combination of non-invasive technologies to pinpoint the source of your leak without unnecessary damage to your property. Our toolkit includes acoustic listening equipment, thermal imaging cameras, moisture meters, tracer gas systems, and endoscope cameras. In most cases, we can locate the leak without lifting a single floorboard.

Once the leak is found, we document everything in a written report that you can submit to your insurance company. It sets out the location of the leak, the likely cause, the photographic and thermal evidence, and what is needed to repair it.

What Trace and Access Means in a Buildings Policy

Most buildings insurance policies in the UK include a trace and access section. In general terms it pays for two things: the cost of finding the source of an escape of water that has damaged your home, and the cost of removing and replacing the parts of the building needed to get to it, such as lifting tiles, cutting into plasterboard or opening a ceiling, and then making good. It is usually subject to its own limit, which you will find in your policy schedule.

There are three points that catch people out. First, most policies do not pay to repair the pipe or fitting itself; that is treated as maintenance. Second, the water damage to your plaster, floors and decorations is normally claimed under the separate escape of water section, with its own excess. Third, many policies only pay trace and access costs where the leak has already caused damage, so a suspected leak with no visible harm may not qualify. Some basic policies leave the cover out or offer it only as an upgrade.

Policy wording varies a great deal, so always check yours or ask your insurer. For more detail, read trace and access cover explained and is leak detection covered by home insurance?

What Your Insurer Typically Wants to See

Every insurer runs its own claims process, but the questions a claims handler or loss adjuster asks are broadly the same. A claim with clear answers to these moves faster than one that has to go back and forth.

• Where the leak is, confirmed rather than guessed, and which pipe or fitting has failed
• What caused it, for example a failed joint, a corroded pipe or a perished seal
• When you first noticed the problem and what you did to limit the damage
• What access is needed to repair it, and how much of the building has to be opened
• Photographs of the damage taken before anything was cleaned up or thrown away
• Quotes for the repair and for putting the damaged areas right

Our escape of water claim evidence checklist turns this into a list you can work through, and the insurance leak claims guide walks through a claim from first call to settlement.

What Happens on the Day

Before we arrive, turn off the water at the stopcock if the leak is active, take your photographs and move valuables clear. If water is coming through a ceiling right now, our guide to water coming through the ceiling: the first hour sets out what to do first. Then the survey itself runs in a set order:

• The engineer asks about the symptoms, looks at the damage and reads the water meter and boiler pressure
• Each water and heating circuit is isolated and pressure tested to find out which one is losing water
• Thermal imaging, acoustic listening, tracer gas and moisture meters are used to narrow down the position
• The leak position is marked on the floor or wall, and you are shown what was found before the engineer leaves
• Where a repair can be made there and then, we will tell you what is involved; otherwise the report explains the access needed
• The written report follows, usually within 24 to 48 hours

Most surveys take two to four hours. Someone needs to be at the property to give access, and in a flat it helps to let the neighbours above and below know, because the leak is sometimes in their pipework rather than yours.

What Our Trace & Access Report Includes

Each report is prepared by the engineer who carried out the survey and includes a property survey summary, a description of all detection methods used, photographs of the affected areas, thermal imaging captures showing the leak path, moisture readings, the confirmed location and likely cause of the leak, and recommended repair actions.

The report is written in plain English so that it works for a claims handler, a loss adjuster, a managing agent or a freeholder as well as for the plumber doing the repair. We can send it directly to your insurer or loss adjuster if you prefer, and we are happy to answer any follow-up questions they have about what was found.

Trace and Access Costs: What Affects the Price

The price of a trace and access survey depends mainly on how much of the property needs investigating. A single suspected leak in one area is the standard survey. A leak that has spread across several rooms, or a property where more than one system could be at fault, needs the comprehensive survey. Large houses, several leaks and commercial buildings are quoted individually.

Other things that affect the figure are access (a leak under a fitted kitchen or in a basement takes longer to reach), whether the heating and hot water systems both need testing, and how easy it is to isolate each circuit. The survey price covers finding the leak and the report; opening up, the repair and making good are separate. For typical repair figures, see hidden water leak repair costs in London, and our pricing page lists every service.

Working With Your Insurer

In most cases the process works like this: you notice signs of a leak and contact your insurer to open a claim, your insurer confirms your trace and access cover, you book our survey and we attend, we locate the leak and produce the report, you submit the report with your claim, and your insurer deals with the access, repair and damage under the relevant sections of your policy.

If water is actively leaking, stopping the damage comes first. Insurers generally expect you to act reasonably to limit the damage, so isolate the water, record what you can and tell your insurer as soon as possible. Some insurers prefer to appoint their own contractor, so it is worth a quick call before you book if you can make one.

We also carry out leak detection for insurers, loss adjusters and managing agents who need an independent survey on a claim. Call 020 3912 0200 to arrange an instruction.

Trace Survey, Trace and Access Report, Certificate of Dryness

Insurers, loss adjusters and drying contractors all use slightly different words for overlapping pieces of work, and it causes a lot of confusion on a claim. Here is what each one actually means, and which of them we produce.

Trace survey. Some claims handlers ask for a trace survey rather than a trace and access survey. They are the same visit: a non-invasive investigation to find where the water is coming from. Trace surveys on a domestic property in London start at £350 with us, and the wording your insurer uses does not change what we do on site.

Trace and access report. This is the document that comes out of the survey. Ours sets out the property and the date, the symptoms you reported, the equipment used, the moisture readings and thermal images, the location of the leak marked on a photograph, the access we believe is needed to reach it, and our conclusion on the cause. That last part matters: an insurer decides cover on cause, not on damage alone.

Damp report. Where there is no pressurised leak, what the readings show is a damp problem: condensation, penetrating damp through a wall or a failed seal. We record that honestly rather than inventing a leak, and the report says which it is and what the readings were. Our damp and moisture survey page explains how that one works.

Certificate of dryness. This is a different document, issued at the end of a claim by the company that dried the property, confirming the structure has returned to normal moisture levels. We do not carry out drying, so we do not issue certificates of dryness. What our report gives you is the baseline: dated readings from before the drying started, which is exactly what a drying contractor and an insurer need to measure progress against.