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 67 reviews Posted on Google Mohammad Fazal (John)Trustindex verifies that the original source of the review is Google. Professional A Team These guys are brilliant, honest and do what they say. Not Just that, they also go extra mile. I highly recommend these guys
Owner's reply
Hi Mohammad , We really appreciate your feedback. And we’re delighted you’re happy with the service provided.Posted on Google M NTrustindex verifies that the original source of the review is Google. Never in my life have I come across a company this professional 👌🏻They explained everything clearly from the start and found and fixed the leak under my shower tray without breaking a single tile. They even put the shower tray and screen back perfectly like nothing had ever happened. Another company quoted me more than double the price, but these guys charged £727 and did an amazing job. Both engineers were amazing.Definitely the best around. Highly recommend.
Owner's reply
Hi Mr Maxwell, Thank you so much for your kind review. We really appreciate you taking the time to leave us your feedback. Our clients always come first,and we’re glad to hear you were happy with the service.Posted on Google A PTrustindex verifies that the original source of the review is Google. James arrived promptly on time. Extremely professional, quick and efficient. I have no hesitation in highly recommending Geldon and James. I will definitely contact them when I update my radiators later in the year. Thank you for an excellent service from start to finish.
Owner's reply
Hi Alison, Thank you so much for taking time to leave such wonderful feedback. We’re delighted to hear that James & Geldon provided a prompt, professional and efficient service and we will make sure your review its forwarded to our engineers 🙏🏻Posted on Google Angie GTrustindex verifies that the original source of the review is Google. Chris V was very helpful, and polite, turned up on time, did a thorough investigation to find out a damp patch on the carpet wasn't a pipe leak which was reassuring.
Owner's reply
Thank you so much for your kind review, We’re delighted to hear Chriss provided a thorough and reassuring service. We really appreciate your feedback and are always here if you need us again.Posted on Google Charlie YTrustindex verifies that the original source of the review is Google. Jim, spent a lot of time finding the issue and double checking no other sources, doing numerous tests I have seen no other plumber do. Giving advice with a friendly smile, leaving with a happy customer. Thanks again
Owner's reply
Thank you for the wonderful review,Charlie! We’ll be sure to pass your kind words on to Jim. We really appreciate we could provide through the service you deserved.Posted on Google Andreea IonelaTrustindex verifies that the original source of the review is Google. Great work, highly recommended! 💯 Thank you so much!
Owner's reply
Hi Andreea, Thank you for your kind words! We’re delighted you had a great experience.Posted on Google Betty CawelyTrustindex verifies that the original source of the review is Google. Aleks from PrimeFix found my leak in an area I would never have expected. It took some time and wasn’t a cheap job, but it was a very difficult leak to find. He worked carefully and managed to locate it with minimal damage. Big thanks to Aleks and the PrimeFix team for their hard work and professionalism. Highly recommended.
Owner's reply
Hi Betty , Thank you for your kind words and recommendation. We’re glad Aleks was able to find the leak and keep the exposure damaged to minimum. We really appreciate your supportPosted on Google ray fahtiTrustindex verifies that the original source of the review is Google.
Owner's reply
Hi Ray , Thank you for the feedbackPosted on Google 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 Google 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 mother
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
| Cookie | Duration | Description |
|---|---|---|
| cookielawinfo-checbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
| cookielawinfo-checbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
| cookielawinfo-checbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
| cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
| viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |