PrimeFix Group deploys advanced thermal imaging, acoustic survey, and tracer gas technology to locate hidden leaks in schools, hospitals, warehouses, hotels, offices, and other large commercial facilities without unnecessary structural damage.
We provide a full range of specialist, non-destructive leak detection services tailored to the operational demands of commercial and large-scale properties.
We precisely locate the source of escape-of-water incidents using thermal imaging, acoustic listening, and tracer gas technology, minimising disruption to your operations and producing detailed reports to support insurance claims.
Specialist acoustic and correlator equipment is used to detect and pinpoint bursts or failures in underground water supply pipes, reducing excavation to the exact area required and keeping site disruption to an absolute minimum.
For complex ingress issues across roofs, facades, basements, and structural voids, we conduct comprehensive moisture mapping and thermal surveys to identify all points of failure, providing a clear remediation strategy.
Our engineers are experienced working in live and operational commercial environments, including:
EXCELLENT Based on 60 reviews Posted on ray fahtiTrustindex verifies that the original source of the review is Google.
Owner's reply
Hi Ray , Thank you for the feedbackPosted on Matt ConroyTrustindex verifies that the original source of the review is Google. Excellent work with promised support if needed after plumbing in our wunder underfloor heating. Would reccomend 👍🏼
Owner's reply
Hi Matt , Thank you and we really appreciate the feedback. Gland we would help and of course we’re always here if you need any further support in the future 🙏🏻Posted on Kirsty BrownTrustindex verifies that the original source of the review is Google. ⭐️⭐️⭐️⭐️⭐️ We had an underground leak at my 88-year-old mother’s property and contacted Prime Fix Group Ltd. The engineer arrived promptly and, after carrying out an assessment, called me directly to explain the issue, the required work, and all costs involved, as he did not want to stress my mother with the situation. Very professional service from start to finish with no hidden fees at all. Everything was explained clearly before any work was carried out. We submitted the report to our insurance company, who recognised Prime Fix as highly qualified engineers. Highly recommended.
Owner's reply
Hi Mr Brown, Thank you for your kind words and recommendation. We’re glad we could help and make the process as stress-free as possible for your motherPosted on Foyez MiahTrustindex verifies that the original source of the review is Google. Super quick with a solution and well explained. Clean and tidy with no left over mess. Would recommend!Posted on Bruce CheesmanTrustindex verifies that the original source of the review is Google. Jim came out this afternoon and did an excellent job to see if we had a leak. Many tests were done and no leak was found in our property. I have no hesitation in recommending PrimeFix Group.
Owner's reply
Hi Mr Cheesman , Thank you for your kind feedback. We really pleased Jim was able to carry out throughout leak investigation and give you peace of mind . We truly appreciate your recommendation and your supportPosted on Kay Louise HaleTrustindex verifies that the original source of the review is Google. Arrived earlier than expected. Job completely efficiently, very well done. Pleased with service.
Owner's reply
Hi Kay , we do really appreciate your positive feedback 🙏🏻Posted on Patricia CutlerTrustindex verifies that the original source of the review is Google. Jim’s workmanship was first-class, avoiding the worst disruption to my bathroom, and resolving the leak in a very inaccessible spot. He arrived on time, left everything clean and tidy and was courteous and helpful.
Owner's reply
Thank you for your kind review. We’re delighted Jim was able to resolve the issue with minimal disruption and provide the high standard of service we aim for 🔥🔥🔥Posted on lowen michaelTrustindex verifies that the original source of the review is Google.
Owner's reply
Thank you for the feedback we do really appreciatePosted on Aurel BerishaTrustindex verifies that the original source of the review is Google. Amazing communication and service. Would definitely recommend to all !
Owner's reply
Hi Aurel, we are glad that you are satisfied with the communication and the service from our side 🙏🏻Posted on conceicao forechTrustindex verifies that the original source of the review is Google. Shebby did an excellent job with the plumbing work in my house. He was professional, reliable, and clearly knew what he was doing. He explained everything clearly, worked efficiently, and left everything clean and tidy when the job was finished. The quality of the work was outstanding, and I really appreciated his attention to detail and friendly attitude. I’d definitely recommend Shebby to anyone looking for a trustworthy and skilled plumber.
Owner's reply
Thank you for your kind feedback.We’re pleased to hear the engineer was friendly and did a great job . We really appreciated the recommendation and are glad you had positive experiences🙏🏻
Commercial leak events are high-stakes. Undetected or misdiagnosed leaks in a school, hospital, or warehouse can mean operational shutdowns, structural damage, and significant insurance disputes. PrimeFix Group brings the precision, documentation, and professionalism that facilities managers, insurers, and loss adjusters rely on.
We locate leaks without unnecessary damage to your structure, floors, or finishes, protecting your property and keeping your operational timeline on track.
Every investigation produces a detailed technical report with findings, evidence, and recommended remediation, accepted by all major insurers for trace and access claims.
We work around your schedule, including out-of-hours and weekend attendance, to ensure leak detection causes the least possible interruption to your facility.
PrimeFix holds all relevant commercial accreditations and carries full public liability insurance, giving facilities managers and procurement teams complete peace of mind.







We deploy the appropriate technology for each investigation, ensuring the most accurate result with the least intervention.
A secondary school in Hertfordshire was experiencing a significant water loss issue, with approximately 1,000 litres of water being lost per minute from its mains water system. The leak was causing major concerns regarding water wastage, operational disruption, and escalating utility costs.
After a detailed survey, our team successfully identified the exact location of the underground leak. The findings were clearly documented and provided to the client, allowing targeted repairs to be carried out quickly and efficiently.
The leak was repaired, restoring the school’s water supply system to full operation and preventing the continued loss of approximately 1,000 litres of water per minute. By accurately locating the leak, extensive excavation work was avoided, reducing disruption to the school and significantly lowering repair costs.
Whether you’re dealing with an emergency leak event or planning a proactive survey, our team is available 24/7, 365 days a year. We’ll have a specialist on-site when you need them.
We provide commercial water leak detection services throughout Greater London and the surrounding Home Counties, including:
City of London, Westminster, Camden, Islington, Hackney, Tower Hamlets, Southwark, Lambeth, Wandsworth, Hammersmith & Fulham, Kensington & Chelsea, Ealing, Hounslow, Richmond, Kingston, Merton, Sutton, Croydon, Bromley, Lewisham, Greenwich, Bexley, Havering, Barking & Dagenham, Newham, Waltham Forest, Redbridge, Haringey, Enfield, Barnet, Harrow, Brent, Hillingdon
Luton, Bedford, Dunstable, Leighton Buzzard
Chelmsford, Brentwood, Basildon, Harlow, Epping, Chigwell, Grays, Romford
Dartford, Sevenoaks, Tonbridge, Maidstone, Gravesham, Hertfordshire, Watford, St Albans, Hemel Hempstead, Hertford, Stevenage, Welwyn Garden City, Hatfield, Radlett, Borehamwood, Potters Bar
Guildford, Woking, Reigate, Epsom, Kingston upon Thames, Walton-on-Thames, Camberley, Farnham
Reading, Slough, Windsor, Bracknell, Maidenhead, Wokingham, Newbury
High Wycombe, Milton Keynes, Aylesbury, Amersham, Chesham, Beaconsfield, Marlow
Cambridge, Peterborough, Ely, Huntingdon, St Ives, Wisbech
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