Boiler Pressure Loss & Rising Damp Investigation | Non-Invasive Leak Detection in N17 London

Non-Invasive Leak Detection Investigation – N17 London

📍 Property: Courtman Road, London, N17 7HT
🏠 Service: Professional Non-Invasive Leak Detection
🛠 Company: MML Plumbing Ltd – North London Specialists

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✔️ No leaks found in the heating system
✔️ No hot or cold water pipe leaks detected
✔️ Boiler pressure loss was not caused by a pipe leak
✔️ Severe damp is present throughout the property
✔️ Damp is most likely caused by external or underground water ingress, not plumbing

This video documents a full insurance-grade leak detection investigation, carried out using advanced non-destructive methods to provide certainty without unnecessary damage.

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🧭 Why were we called out

The occupier reported ongoing boiler pressure loss and widespread damp inside the property.
Our task was to confirm whether the pressure drop was caused by:
• A heating system leak
• Hot or cold water pipework failure
• Or a non-plumbing issue causing damp and moisture movement

The goal was a definitive answer, not guesswork.

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🛠 Methods used (non-invasive only)

During this investigation, we carried out:

• 🔥 Thermal imaging survey
• 💧 Moisture meter mapping
• 🎧 Acoustic leak detection
• 🧪 Hydrogen tracer gas testing
• 👀 Full visual inspection of accessible pipe routes

➡️ No floors, walls, or ceilings were opened.

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🧱 What we found – damp conditions

Widespread damp was identified across multiple rooms:

🍽 Kitchen
• Wet, cold flooring on thermal imaging
• Saturated lower wall sections
• Early signs of floor deterioration

🚿 Bathroom
• High moisture in the floor and lower walls
• Damp pattern consistent with rising moisture

🚪 Hallway
• Severe rising damp from ground level
• Skirting and lower plaster affected
• Evidence of historic re-plastering due to damp

🛏 Bedrooms
• Damp movement visible from floor level upward
• Thermal imaging confirmed moisture rise, not pipe leaks

📌 The damp pattern was long-term and inconsistent with a pressurised plumbing leak.

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🔊 Acoustic & hydrogen testing results

🎧 Acoustic leak detection
• Radiators tested
• Heating pipework tested
• Hot and cold water routes tested

➡️ No leak signatures detected

🧪 Hydrogen tracer gas testing
• System fully charged with tracer gas
• Radiators, skirting runs, ceilings, kitchen, hallway, bathroom, and bedrooms all tested

📊 Hydrogen bottle pressure remained stable throughout
➡️ If a leak were present, pressure would drop.

✔️ No hydrogen detected anywhere in the property
✔️ Heating system confirmed sealed and leak-free

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⚠️ So what’s causing the problem?

This investigation confirmed:

❌ Ruled out
• Heating system leaks
• Hot water leaks
• Cold water leaks

✅ Most likely causes

• Rising damp from ground level
• External rainwater ingress
• Possible underground drainage displacement or failure
• Long-term moisture accumulation beneath the structure

Drainage pipes run alongside the property, and leaking or displaced underground drains can allow water to collect under floors, leading to damp rising internally.

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📹 What this video shows

This video explains:
• How professional leak detection works
• Why boiler pressure loss does not always mean a leak
• How damp can mimic plumbing failures
• Why non-invasive testing prevents unnecessary damage
• When drainage, not plumbing, is the real issue

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🧠 Key takeaway

People don’t want pipes opened.
They want clarity.

This investigation provided:
• Clear answers
• Evidence-based conclusions
• Insurance-ready documentation
• No unnecessary disruption

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📞 Need clarity on a similar issue?

If you’re dealing with:
• Boiler pressure loss
• Damp with no clear cause
• Suspected hidden leaks
• Insurance investigations

📞 Call 020 8355 0840
📧 info@mmlplumbing.co.uk
🌐 https://www.mmlplumbing.co.uk

Acting early prevents damage and avoids costly guesswork.

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🔎 Related services
• Leak Detection in London
• Non-Invasive Leak Detection
• Hydrogen Tracer Gas Testing
• Thermal Imaging Surveys
• Trace & Access Reports
• Insurance-Approved Investigations

Видео Boiler Pressure Loss & Rising Damp Investigation | Non-Invasive Leak Detection in N17 London канала MML Plumbing Ltd.