Every PrimeFix engineer holds NVQ Level 2/3 qualifications, Gas Safe registration, and NICEIC approval where relevant. The company itself is CHAS accredited and SafeContractor approved.
As our home base, Borehamwood gets our quickest response times. Our engineers use thermal imaging, acoustic surveys, and tracer gas testing to trace hidden leaks accurately. No unnecessary drilling or digging.
By the time you notice a rising water bill, a damp patch that won’t dry out, or showers growing weaker by the day, water damage may be spreading through your home.
Using thermal imaging, acoustic listening equipment, and tracer gas, our engineers locate the exact source with minimal disruption to your property. Once we’ve confirmed where the leak is, we’ll walk you through the findings, recommend next steps, and provide documentation for an insurance claim where needed.
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






Every quote is confirmed in writing before any work starts. No call-out fee, no parking charges, and no surprises on the invoice.
We back our work with an 18-month workmanship guarantee.
Every water leak detection job follows the same process: starting broader and narrowing the search for the leak as you get closer.
We don’t guess, and we don’t open anything up until we’re certain we’ve found the source of the leak. Here’s the equipment behind every investigation.

When a boiler or system keeps losing pressure with nothing visibly wrong, that's often the first clue. We isolate the circuit, bring it up to a controlled test pressure, and narrow down the fault area, usually within the hour.

Water moving behind a wall or under a floor changes the surface temperature just enough for an infrared camera to detect it. No tiles lifted, no plaster opened. The camera searches first, so we don't have to.

A soft patch of floor, a stain that keeps coming back, a ceiling mark with no roof leak to explain it: moisture readings tell us how far the water has spread and point us toward the source.

Escaping water under pressure has its own sound signature. Our ground mics and pipe-correlation equipment can pick it up even underground or behind finished walls.

For leaks that won't reveal themselves any other way, a safe hydrogen-nitrogen mix is fed into the system and followed with sensitive detectors until it reaches the exact point of escape. It's our most precise method, reserved for the hardest cases.
Every quote is confirmed in writing before work starts. No call-out fee. No hidden charges.
Discounted rates for landlords, HMOs, and managing agents with multiple properties. Dedicated account manager included.
No hidden extras: no parking, fuel, ULEZ, or Congestion Charge surcharges. Materials at trade cost plus 30% markup, fully itemised on the invoice.
Account-client portfolios receive discounted rates from the published prices.
Real engineers, real qualifications, based just around the corner.
PrimeFix is headquartered on Thirsk Road, Borehamwood, WD6.
When you choose us, you’re not waiting on someone to drive in from across London; our team is already right here.
Whether you’re near the High Street, Shenley Road, or over by Elstree Studios, we guarantee faster arrivals, less guesswork, and the same accredited, non-invasive detection methods (acoustic, thermal, tracer gas) we use everywhere, backed by an 18-month workmanship promise.
On call around the clock in Borehamwood for leak detection, plumbing, heating, electrical, and drainage emergencies.
On call around the clock for emergencies. For planned work and quotes, we typically respond within the hour during business hours.
0208 108 0400
0757 700 2864
info@primefixgroup.uk
Monday to Friday 8am to 6pm | Emergency Line 24/7
Leave your details and a PrimeFix engineer will be in touch within 60 minutes.
Straight answers to the questions we're asked most. If yours isn't here, call 020 8108 0400 and we'll talk you through it.
We charge by the hour: £85 +VAT for the first hour, then £42.50 +VAT per half hour after that. There’s no call-out fee, and you’ll get a confirmed price before any work begins. Parking, ULEZ, congestion charge, and fuel surcharges are never added on top.
Plan for one to two hours in most cases. The exact time depends on your property’s size and pipework layout. We’ll confirm a realistic window when you book.
In the vast majority of cases, no. Between thermal imaging, acoustic tracing, moisture mapping, and tracer gas, we narrow the source down long before any opening-up is considered. Most jobs finish without a single tile or panel disturbed.
Yes, every time. You’ll receive a full digital report detailing where the leak was, which methods confirmed it, and what we found. This is the standard format major UK insurers expect for trace and access claims.
Either works. Our emergency line runs 24/7, 365 days a year, with no extra charge for out-of-hours callouts. For anything non-urgent, we’ll simply book a time that fits your schedule.
Every PrimeFix engineer holds NVQ Level 2/3 qualifications, Gas Safe registration, and NICEIC approval where relevant. The company itself is CHAS accredited and SafeContractor approved.




















From emergency leak detection to full plumbing rebuilds: one trusted team, covering Greater London and the Home Counties.


Non-destructive water and gas leak detection using thermal imaging, acoustic equipment and tracer gas — with insurer-accepted reports.
Emergency and planned plumbing for homes and commercial properties/ From burst pipes and leaking fixtures to full system upgrades, 24/7.
Emergency and planned plumbing for residential & commercial properties. CCTV surveys, jetting, and emergency drain unblocking
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