Structural Leak Detection

Building Structure & Facade Leak Detection

ADI Leak Detection specializes in finding structural leaks in the structure of buildings. 

  • Structural leaks causes water damage to buildings including Woodworm, Dry & Wet Rot & Subsidence
  • A building’s Roof, Walls, Windows & Doors are all structural weak points for potential water ingress
  • Structural leak detection techniques include thermal imaging drones, moisture mapping, tracer gases and acoustic leak surveys.

Water Damage Problems That Building Leaks Can Cause


  • Woodworm infestation is a common consequence of building leaks.
  • Moisture from leaks creates an ideal habitat for these pests, leading to structural damage.
  • Immediate detection and repair of leaks are crucial to prevent woodworm-related deterioration.

Dry & Wet Rot

  • Dry and wet rot occurs due to persistent moisture from building leaks.
  • Damp conditions lead to the decay of wooden structures, compromising the building’s integrity.
  • Identifying and rectifying leaks early can prevent these destructive conditions.


  • Subsidence, the gradual sinking of a building due to water erosion around the foundation, is often caused by leaks.
  • Detecting and addressing leaks early can prevent or mitigate subsidence, preserving the building’s structural stability.

Structural Weak Points For Water Ingress

Understanding and protecting against water ingress involves identifying structural weak points such as compromised waterproofing, cracks in concrete or masonry, and deteriorating roof components.


  • Cracked or missing tiles/slates: Common cause of leaks, especially after severe weather.
  • Damaged flashing: Seals around chimneys, vents, skylights, and valleys can deteriorate and allow water intrusion.
  • Blocked gutters and downspouts: Overflowing water can leak under roof tiles or seep into walls.
  • Defective or missing roof underlayment: Provides additional waterproofing protection under the main roofing material.
  • Penetrations: Pipes, vents, and other roof openings require proper sealing to prevent leaks.


  • Cracks in render or mortar: Especially vulnerable in exterior walls exposed to weather.
  • Bridged cavity walls: The gap between inner and outer wall layers becomes filled with debris, hindering drainage and allowing water penetration.
  • Missing or damaged damp proof course (DPC): A horizontal barrier in walls prevents rising damp from the ground.
  • Blocked air bricks: These ventilate cavity walls and prevent moisture buildup, but blockage can lead to dampness.
  • Faulty or deteriorated external cladding: Brick, stone, or timber cladding can crack, loosen, or become porous, allowing water ingress.

Windows and Doors

  • Damaged or failing seals: Around window and door frames, allowing water to seep in under pressure.
  • Cracked glass: Especially in older windows, can lead to direct water ingress.
  • Poor flashing: Improper installation or deterioration of flashing around windows and doors can create vulnerabilities.
  • Defective drainage channels: These divert water away from windows and doors, but can clog or malfunction, leading to leaks.

Other Causes of Structural Building Leaks

  • Foundations: Cracks, gaps, or faulty waterproofing can allow water to enter below ground and rise into walls.
  • Ground levels: If soil slopes towards the building, it can accumulate rainwater and increase the risk of leaks.
  • Penetrations: Pipes, cables, and other service entry points into buildings require proper sealing to prevent leaks.

Our Structural Water Leak Investigation Techniques to Detect the Cause of Water Damage:

Drones with 8k Thermal Cameras

Drones equipped with 8k thermal cameras provide a comprehensive and non-invasive method to detect leaks, offering a bird’s-eye view of hard-to-reach areas and pinpointing temperature anomalies indicative of moisture.


Handheld Thermal Imaging

Handheld thermal imaging devices allow for close-up inspections of suspected leak areas, detecting temperature variations caused by moisture presence, and helping to identify the exact location of leaks.

Moisture Mapping

Moisture mapping involves creating a detailed chart of moisture levels across various building components, identifying potential leak sources, and guiding repair strategies.

Damp Meter Surveys

Damp meter surveys measure the moisture content in building materials, indicating potential leak areas and the extent of water damage.

On-site Salts Analysis

On-site salts analysis detects the presence of salts left behind by evaporating moisture, often a sign of ongoing leaks and moisture issues.

Tracer Gas Leak Detection

Tracer gas leak detection involves releasing a harmless gas into pipes or walls and detecting its escape points, accurately identifying leak locations.

Dye Testing

Dye testing introduces non-staining dye into water systems, visually revealing leak points as the colored water escapes.

Pressure Testing

Pressure testing assesses the integrity of pipes by applying pressure and monitoring for leaks, identifying weaknesses before they lead to significant damage.

Acoustics Surveys

Acoustic surveys detect the sound of escaping water, even through thick building materials such as concrete, pinpointing the location of leaks with precision.

Void CCTV Inspection

Void CCTV inspection involves sending a Borescope camera into inaccessible areas, providing a visual inspection of hidden spaces for leaks and structural issues.

Our Reviews & Accreditation’s

CIPHE - Chartered Institute of Plumbing and Heating Engineering

ADI Leak Detection is accredited with The Chartered Institute of Plumbing and Heating Engineering.

ADI Leak Detection is registered with The Water Industry Approved Plumbers’ Scheme.

ADI Leak Detection is registered with The Water Industry Approved Plumbers’ Scheme.

ADI Leak Detection is a Watersafe Accredited contractor.

Structural & Building Leak FAQs

Building insurance typically covers sudden and accidental water damage, but coverage may vary. Always review your policy or consult with your insurer for specifics.

A one-time leak can lead to mold if the moisture is not promptly and thoroughly addressed. Mold can start to grow within 24-48 hours in the right conditions.

Responsibility for leak damage depends on the ownership and the source of the leak.

Generally, property owners are responsible for internal leaks, while external issues may fall to local authorities or water service providers.

Building windows may leak due to faulty installation, seal failure, or deterioration over time. Regular maintenance and inspections can identify and rectify potential issues.

Water leakage in a structure is detected using various methods such as thermal imaging, moisture meters, tracer gas, dye testing, and acoustic surveys, depending on the specific situation and structure.

Finding a leak in a large building involves a systematic approach using tools like thermal imaging, moisture mapping, and tracer gas techniques, often starting with the most common weak points and expanding the search from there.

Call ADI If You Need Help With A Structural Building Leak Investigation

If you’re facing water damage or suspect a structural leak in your building, contact ADI Leak Detection. 

Our expert team uses advanced techniques to find, locate, and repair leaks, preventing further damage and preserving your building’s integrity.

ADI Leak Detection Customer Service Office Team

Adrian Morgan

Adrian Morgan CIPHE RP RHP is the founder & Managing Director of ADI Pro Leak Ltd. Adrian is also the Head Plumbing, Heating & Leak Detection engineer at ADI Leak Detection.

Adrian CIPHE RP RHP is proud to be registered with the Chartered Institute of Plumbing & Heating Engineering, a Registered Plumber and a Registered Heating Professional.