HOW TO FIND A WATER LEAK UNDER FLOOR

The symptoms of a leak under floorboards include the following visual signs:

• Floorboards will buckle and warp in the presence of leaking water.
• Brown or yellowish water stains appear on floorboards due to water leaks.
• Mould growth is a common indicator of hidden leaks.
• Ceilings (below wooden floors) droop in the event of escaping water.
• Unexplained pools of water or excessive moisture levels are common leak signs on wood floors.

Other tell-tale signs of wooden floor water leaks include:

• Musty odours indicate leaking water. Mould growth, caused by excess moisture (i.e. leaks) has a distinctive "musty" smell.
• Increased water bills and irregular water meter readings show there are water leaks on your property.
• Water pressure levels drop when there are water leaks in your system as the leak diverts water flow.
• Uneven creaking sounds occur as a result of uneven drying of wet floorboards.

Next, we'll move on to water leak detection tips for concrete flooring.

The symptoms of a leak under a concrete floor include:

• Cracks in concrete slabs, particularly near walls or plumbing fixtures, are common water leak signs.
• Puddles or persistent damp areas indicate the presence of subsurface moisture.
• A white powdery substance, called efflorescence, appears on concrete coverings when leaking water is present.
• Mould or mildew growth is a common sign of persistent water seepage, as mould spores thrive in damp environments.
• Dark patches or water stains on concrete slabs signal hidden water leaks beneath the surface.

Other tell-tale signs of concrete floor water leaks include:

• The sound of running or gurgling water, when systems are not in use, are auditory signs of a water leak.
• Olfactory odours, like musty smells, are common indicators of leaking water.
• A rise in water and energy bills is an expected sign of water leaks.
• Loss of water pressure throughout your house signifies potential diversion of water flow due to a leak.
• Cracks, warping, bending, or water stains on ceilings are caused by leaking water beneath the surface.
• In severe cases, water leaks can cause unevenness when concrete slabs shift or even become 'bouncy' when walking on them.

Let's move on to how homeowners can find a leak on their property, next.

Detecting leaks can be complex and professional help is recommended, mentioning specialized gear like acoustic listening devices, thermal imaging cameras, and damp meters.

However, if you want to put your DIY skills to good use, here are some steps you can take to find a water leak under your floor:

• Use moisture meters to detect leaks underneath floor coverings.
• Leak detection specialists use thermal imaging cameras to locate water leaks in hidden areas, such as inside cavity walls, under wood floors or within swimming pools.
• If you suspect a leak but can't pinpoint the source, consider hiring a professional. ADI Leak Detection uses specialised equipment and has the expertise to locate hidden leaks on your property.

Acoustic listening equipment are specialised water leak detection tools used to pinpoint the leak source within pressurised water pipes. These devices are important tools in a professional leak detector toolbox for leaks buried beneath the floor.

The equipment is designed to amplify hidden soundwaves (i.e. the leak noise) caused by flowing water. Key components include sensitive microphones and sensors, amplifiers (used for amplification of leak sounds) and headphones to detect water leaks and leak noises.

Leak detectors do a frequency analysis of the data they collect from acoustic devices.

How acoustic listening devices work:

• Ground microphones are placed on the surface of the ground or a structure to detect leak sounds transmitted through the material (e.g. wooden floorboards, laminate flooring, etc.).
• Listening sticks, or rod-like probes, are pressed against pipes or the ground to listen for leaks.
• Electronic stethoscopes/headphones are like medical stethoscopes but designed specifically for leak detection, providing a clear and amplified sound of the leak.

For larger pipeline systems, leak correlators are used where two or more acoustic listening devices are used simultaneously at different points along the pipeline to pinpoint the exact location of the leak by analyzing sound travel time.

Thermal cameras are highly specialised pieces of non-destructive leak detection equipment. They use infrared radiation to reveal temperature differences (as small as 0.01°C) that pinpoint leak locations.

They are used for moisture detection where water leaks are suspected. They monitor cold water leaks and give real-time visualisation when locating the leak heat signature.

Applications include finding hidden leaks in underfloor heating loops, cold and hot pipes, or under concrete slabs.

Borescope cameras are small microscopes positioned on the end of a flexible probe. They are non-invasive cameras used for visual inspection in leak detection.

They are useful for internal viewing when trying to access hidden pipe leaks. A borescope camera can be inserted into hard-to-reach and tight spaces, such as down drain lines, inside wall cavities, and underneath floorboards to pinpoint the leak location.

Also called moisture or humidity measurement meters, damp meters are specialised tools used to measure moisture content in various building materials, including wood, plaster, and concrete.

They can detect subtle variations in moisture levels and relative humidity. They are types of non-destructive detection equipment.

Expert leak detectors, like ADI, perform a damp meter test when pinpointing a leak source. They are positioned close to noticeable signs of water damage, such as wood damage (on a wooden floor), and cracks and mould growth on other types of flooring, to find leaking water.

Underfloor leak detection can be complex, especially for leaks hidden in inconspicuous areas. Contact ADI's leak tracing specialists for leaks beneath wooden, concrete, tiled, or laminate floor coverings.

ADI Leak Detection's experienced technicians are CIPHE, WIAPS & Watersafe accredited and provide insurance approved reports to assist with your home insurance claim.

Our experts use non-destructive methods and the latest leak detection technology to locate water leaks on your property.

Comprehensive, reliable nationwide repair services and specialised leak detection equipment identify and repair leaks with proven cost-effective solutions.