Leak Detection South provides professional, non-destructive leak detection services in Portsmouth and surrounding areas. Using advanced technology, we locate hidden water leaks quickly and accurately – with zero unnecessary damage. From mains pipe bursts to hidden heating leaks, we identify and fix problems fast. Trusted by homeowners, landlords, and insurance providers across Hampshire, we’re your local leak detection specialists.
About Leak Detection Portsmouth
Welcome to Leak Detection South, Portsmouth’s trusted specialists for water leak detection and repair. Whether it’s a leak hidden under your floor, a burst supply pipe in your garden, or a pressure drop in your heating system, our experienced engineers can locate it precisely using non-invasive technology — saving you time, money, and disruption.
We combine years of industry experience with the latest diagnostic tools, including thermal imaging, acoustic testing, moisture mapping, and tracer gas systems, to deliver fast and reliable results. Our approach ensures every leak is located accurately before any repair work begins, minimising damage to your property.
From small domestic leaks to large-scale commercial water systems, we offer a full range of services — including trace & access reporting, pipe repairs, damp and mould investigation, and trenchless moling. Based locally, we cover Portsmouth, Southsea, Cosham, Hilsea, Fratton, and surrounding Hampshire towns, providing an efficient, customer-focused service you can depend on.
Our Leak Detection Services
We use specialist leak detection methods to locate water leaks precisely, saving time, money, and disruption. Our engineers in Portsmouth are trained in:
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Acoustic Leak Detection – Sensitive listening devices detect escaping water sounds underground or behind surfaces.
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Thermal Imaging Cameras – Reveal temperature changes and hidden moisture in floors and walls.
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Tracer Gas Testing – Safe, inert gas injected into the pipework helps identify even the smallest leaks.
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Moisture Mapping & Data Logging – Accurately measures damp areas and patterns to track concealed leaks.
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Pipe Tracing Equipment – Finds the exact route of hidden supply pipes for efficient repairs.
No matter the leak location – under concrete, tiled floors, in a garden, or ceiling void – we’ll find it fast and fix it with minimal disruption.
What to Expect
When you book a leak detection survey with Leak Detection Portsmouth, you can expect a professional, methodical, and non-destructive service from start to finish. Every property is different, so our engineers take the time to assess your situation and choose the most effective leak detection method for your specific issue.
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Initial Assessment – We’ll discuss your symptoms (loss of pressure, damp, etc.) and inspect the property.
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Diagnostic Testing – Using acoustic, thermal, or tracer gas detection, we identify the precise leak location.
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Leak Confirmation & Report – We document findings with photographs and moisture readings.
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Repair or Recommendation – We can repair the leak ourselves or provide all details for your plumber or insurer.
Why Choose Us?
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Local specialists with quick callouts across Portsmouth and Hampshire
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Non-destructive leak detection – no unnecessary digging or damage
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Insurance-approved reports with photos and recommendations
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All types of leaks covered – domestic, commercial, and industrial
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Highly trained engineers using the latest equipment
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Friendly, transparent service with clear communication from start to finish
We pride ourselves on combining technical expertise with local knowledge to deliver the most accurate and efficient leak detection in Portsmouth.
Why Choose Us?
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Local Experts – Based in the South, we offer prompt service across Portsmouth and surrounding towns like Southsea, Cosham, Fareham, and Havant.
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Non-Destructive Detection – We use advanced equipment to locate leaks without tearing up floors or walls.
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Detailed Reports – You’ll receive a full written report including thermal images and moisture readings, ideal for insurance claims.
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All Leak Types Covered – From domestic plumbing leaks to large-scale commercial water loss, no job is too big or too small.
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Emergency Response – Quick turnaround appointments for urgent leak issues.
Portsmouth Leak Detection for Insurance Claims
Dealing with a suspected leak and making an insurance claim? Leak Detection South can help streamline the process. We work with all major insurance providers and offer comprehensive written reports, photographic evidence, and support with access and trace cover claims.
Trusted Across Portsmouth and the South Coast
Our leak detection services are trusted by property owners, housing associations, and letting agents throughout Portsmouth, Waterlooville, Gosport, Hayling Island, and beyond. With a focus on accuracy, professionalism, and customer satisfaction, we’ve built a strong reputation as one of the South’s leading leak detection companies.
Common Signs of a Hidden Water Leak
If you’re experiencing any of the following signs in your Portsmouth property, it’s time to call in a professional leak detection service:
- Sudden increase in your water bill
- Damp patches on walls, floors, or ceilings
- Mould, mildew, or musty odours
- Low boiler pressure or frequently refilling your heating system
- Sound of running water when all taps are off
- Hot spots on flooring (suggesting underfloor heating leaks)
Our Services
Client Reviews
Areas Covered
At Leak Detection South, we proudly provide professional leak detection, water pipe repairs, pipe replacements, and mould remediation throughout Portsmouth and across the South of England.
Our experienced engineers regularly work in nearby areas such as Southsea, Cosham, Hilsea, Fratton, Fareham, Havant, Waterlooville, and Gosport, as well as across Hampshire and the wider southern region.
If your town or city isn’t listed, don’t worry — we frequently travel further to assist customers outside our core areas. Simply get in touch for a free, no-obligation quote, and we’ll do our best to help wherever you’re located.
- Southampton
- Portsmouth
- Basingstoke
- Guildford
- Brighton
- Woking
- Epsom
- Crawley
- Slough
- Reading
- Hampshire
- Berkshire
- West Sussex
- Surrey
- South London
- East London
- West London
- North London
- Greater London
- Kent
