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Acoustic Leak Detection in Cumbria
Leaks in buried water or drainage lines often go unnoticed until visible damage appears — wet patches, subsidence, or flooding. With acoustic leak detection, we listen to the subtle sound signatures of escaping water and locate leaks precisely and non-invasively. At Unblock Cumbria, we offer acoustic leak detection services across Cumbria & the Scottish Borders, helping minimise disruption and repair costs.
Using sensitive ground microphones, hydrophones, correlators, and audio analysis, our expert engineers can identify leak locations under roads, driveways, gardens, and deep underground — so repairs are targeted and efficient.
We combine cutting-edge technology with local expertise to deliver leak detection you can depend on — fast, accurate, and cost-effective.
How it Works
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Listening devices (microphones, geophones, hydrophones) are placed at accessible points (manholes, valves, surface) to detect “leak noise.”
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Leak noise correlators use two or more sensors to compare time differences in sound arrival, locating the leak between them.
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Engineers distinguish leak tones from ambient noise by focusing on characteristic frequencies and hollow or hiss tones in pressurised systems.
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Once located, we expose only the precise spot for repair — minimising excavation, surface damage and cost.
Because acoustic detection is non-destructive, it’s ideal for sensitive areas where digging is inconvenient or expensive.
Why Use It?
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Non-invasive & precise — No blind digging or guesswork; we reveal the leak’s exact location
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Cost-effective — Saves money on excavation, repair, and reinstatement
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Fast diagnosis — Leak locations can often be confirmed in hours, enabling rapid rectification
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Suitable for various pipe materials — Works on plastic, metal, concrete, cast iron lines
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Reduces further damage — Early detection prevents structural harm, erosion, or pipe collapse
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Supports decision-making — Clear findings help choose targeted repair methods
Our acoustic approach gives you clarity, control, and confidence before any disturbance occurs.
Why Choose Us?
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Specialist Engineers – Our technicians are fully trained in advanced acoustic correlation and leak detection methods, ensuring precise and reliable results every time.
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Latest Equipment – We use professional-grade ground microphones, correlators, and hydrophones to accurately locate leaks under any surface.
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Fast, Local Response – Based in Cumbria, our teams can reach your site quickly to minimise downtime and water loss.
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Non-Destructive Approach – We detect leaks without unnecessary excavation, protecting your property, landscaping, and hard surfaces.
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Comprehensive Reporting – After detection, we provide clear evidence, imagery, and repair recommendations so you can make informed decisions.
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Trusted Across Sectors – From domestic homes to commercial premises and public infrastructure, our leak detection service is trusted for precision and professionalism.
Areas We Cover
- Whitehaven
- Workington
- Carlisle
- Keswick
- Wigton
- Kendal
- Windermere
- Penrith
- Barrow-in-Furness
- and surrounding areas across the Scottish Borders.
If you’re unsure whether we cover your location, just give us a call — our friendly team will be happy to help.
Frequently asked questions
What kinds of leaks can acoustic detection find?
It is most effective on pressurised water lines (cold water mains, supply pipes) and leaks where water is escaping under pressure and creating noise. Very slow leaks or low-pressure systems may be more challenging to detect acoustically.
Does soil type or surface affect detection?
Yes — dense materials (clay, compacted slabs) and noisy environments (traffic, machinery) can mask leak sounds. We account for these factors and often combine methods (correlation, listening, tracing) to improve accuracy.
How deep can leaks be detected?
Depths of several metres are feasible, depending on pipe material, leak volume, and acoustic path. With sensitive sensors and correlation techniques, we can locate leaks even deep under ground.
Will acoustic detection work on sewers or unpressurised drains?
It’s less effective with gravity drains or sewer systems (no pressure), because leaks produce minimal noise. In those cases, CCTV, dye testing, smoke testing, or pressure methods may be better suited.
How soon can you detect a leak after it appears?
As soon as a leak is generating a detectable noise under pressure, acoustic methods can work. We aim to respond rapidly — same day or next day in urgent cases.
What comes after detection?
Once pinpointed, we excavate (only where needed) and repair via pipe replacement, lining, patching or joint sealing. Finally, we confirm success with CCTV or pressure test.
Get Your Free Quote
Suspect a hidden leak in your water or drainage system? Call 01900 870 140 or fill in our contact form. We’ll arrange a sensitive and precise acoustic survey, locate the leak accurately, and guide you on the targeted fix.
