Leak Detection
Looking for professional leak detection services? Our leak detection solutions are designed to identify hidden water leaks before they cause serious damage.
Our leak detection specialists support homes and businesses with non-invasive leak detection solutions, using advanced equipment to locate issues quickly, accurately, and with minimal disruption.
Leak Detection Services
EMERGENCY
AVAILABLE 24/7
Rapid-response emergency leak detection for burst pipes, active leaks and water damage. Available 24/7 for homes and businesses.
LEAK DETECTION SURVEYS
- Non-invasive leak investigations
- Thermal imaging and acoustic testing
- Plumbing and heating leak detection
- Clear findings and recommendations
LEAK REPAIRS & REMEDIAL WORKS
- Targeted leak repairs
- Plumbing and heating system fixes
- Minimal disruption access methods
- Damage prevention and restoration advice
PREVENTATIVE LEAK INSPECTION
- Proactive leak detection checks
- Pressure testing and diagnostics
- Early fault identification
- Reduced risk of future damage
Domestic Leak Detection
Our engineers are experienced in all aspects of domestic leak detection, helping homeowners identify and resolve hidden leaks quickly before they lead to costly repairs or structural damage, including:
- Locating hidden water leaks in walls, floors, and ceilings
- Detecting underground pipe leaks using advanced equipment
- Thermal imaging for non-invasive leak detection
- Moisture and damp assessments
- Leak detection in plumbing and heating systems
- Pressure testing to identify system weaknesses
- Tracing and accessing leaks with minimal disruption
- Preventative inspections to avoid future leaks
- Emergency leak detection and repair services
Commercial Leak Detection
Our commercial leak detection specialists support businesses, landlords and managed properties with accurate leak detection services that minimise downtime, disruption and damage.
This includes:
- Locating concealed leaks in commercial buildings
- Advanced underground pipe leak detection
- Thermal imaging and acoustic leak detection
- Moisture mapping and damp investigations
- Leak detection in commercial plumbing and heating systems
- Pressure testing and system diagnostics
- Targeted access and minimal-disruption investigations
- Preventative inspections to reduce future risk for your business
Central to our two distinct methods are

Gas
Our Tracer Gas Method is a precision-focused technique designed to pinpoint leaks. This controlled gas introduction approach allows us to swiftly and accurately locate the source of leaks.
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Sound
The Aquaphon Method is our sonic solution for leak detection. By utilizing the AquaPhone A200 Plumbers set, we capture the distinctive sounds of leaks, ensuring even the faintest drips are detected.
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State of The Art Equipment
The Tracer Gas Method
Tracer Gas
Our Tracer Gas Method is a cutting-edge technique designed to provide the utmost precision in leak detection. It operates by introducing a safe, non-toxic gas into your plumbing system. This gas then acts as a tracer, following the path of any potential leaks within your pipes.
As the tracer gas moves through the plumbing network, highly sensitive detectors are strategically placed to monitor its progress. These detectors are designed to meticulously track the movement of the tracer gas, allowing us to pinpoint the exact location of any leaks with surgical precision.
Once the leak’s location is identified, our expert team can swiftly and accurately address the issue, minimizing any potential disruption to your property. The Tracer Gas Method ensures that even the most elusive leaks can be uncovered and resolved efficiently.
The AquaPhon Method
Aquaphone A200
Our Aquaphone Method employs state-of-the-art sound detection technology to uncover even the most subtle leaks within your plumbing system. This method utilizes the AquaPhone A200 Plumbers set, a highly sensitive and specialized equipment designed to detect unique sounds associated with leaks.
To initiate the Aquaphone Method, our skilled technicians strategically place sensors throughout your plumbing network. These sensors are capable of picking up the faintest of noises, allowing for the detection of even the most inconspicuous leaks.
By carefully analyzing the sounds detected, we can pinpoint the precise location of any leaks within your plumbing system. This thorough approach ensures that no leak goes unnoticed, providing you with a comprehensive assessment and effective resolution of any plumbing issues.
Areas we cover
From busy city hubs to peaceful suburban neighborhoods, we’ve got London covered. Our expert property maintenance services ensure your home or business stays in top condition, no matter where you are in Greater London.
The Jennings Guarantee
Our 6-point promise to our customers

Transparent & competitive pricing
Transparent, competitive pricing with no hidden fees. Clear quotes, fair rates, and real value.

No call out fee, fixed & free quotations
We never charge a call-out fee. You only pay for our time on the job. Enjoy fixed, free quotations with no obligation.

Certified & knowledgeable engineers
Certified, experienced tradespeople, continuously assessed to ensure every job meets our highest quality standards.

Neat, tidy, honest & reliable team
We’re a neat, tidy, and trustworthy team that respects your property. From start to finish, we work cleanly and efficiently

Work guaranteed for 18 months
All our work is backed by an 18-month guarantee – one of the longest in London – giving you lasting peace of mind.

New boiler warranties up to 18 years
Get up to 18 years’ warranty on new boiler installations, covering parts and labour with trusted protection.
Need Leak Detection Equipment
Visit our Pimlico shop on Lupus Street for reliable leak detection, plumbing, and electrical supplies. We stock trusted brands and essential tools for both professionals and DIYers, with expert advice always available.
See what our valued customers have to say
EXCELLENT Based on 323 reviews Posted on Google Uncovered - The Electric Rock ExperienceTrustindex verifies that the original source of the review is Google. Amazing as always!Posted on Google Bronnie BaynesTrustindex verifies that the original source of the review is Google. Amazing communication and good availability. plumber was extremely professional and arrived on time. Wish there was a bit more transparency on additional payments ie. parking and sealant.Posted on Google Sue DaviesTrustindex verifies that the original source of the review is Google. Jennings are incredibly efficient and helpful. They’ve completed my boiler service and organised the necessary plumbing and electrical certifications . Great after sales service.Posted on Google Diana GouldTrustindex verifies that the original source of the review is Google. Excellent job. Solved a long standing problem quickly and effectively. 100% recommend 👍Posted on Google Paul GrecianTrustindex verifies that the original source of the review is Google. What a fantastic company! From my first conversation with Sian to installation of my new Vaillant boiler they have been absolutely brilliant. Sian responded instantly via What's App when ever I had a question regarding pricing and installation. Sam the installer and his colleague with very friendly, professional, tidy and talked me through the full installation once completed. I have already given contact details to some of my work colleague's this morning. I will use them to service my boiler going forward in the future and for any other plumbing needs. Absolutely 1st Class Company!Posted on Google Brenda ZangTrustindex verifies that the original source of the review is Google. Excellent service from start to finish. Had a new boiler installed and a full power flush carried out. Everything was done professionally, efficiently, and to a very high standard. The team were friendly, tidy, and kept us informed throughout. Highly recommend!Posted on Google Sam HarveyTrustindex verifies that the original source of the review is Google. Easily one of the best experiences I’ve had with tradesmen. Sian was super friendly and helpful, and then Harry showed up early, fixed the issue promptly and was a legend! Highly recommended.Posted on Google Joe CarreiroTrustindex verifies that the original source of the review is Google. Service was professional and friendlyPosted on Google Olive Tree HouseTrustindex verifies that the original source of the review is Google. I’ve been dealing with ongoing pump issues for as long as I can remember, and after multiple visits from different plumbers, nothing ever fully got resolved. Harry from Jennings was the first to actually diagnose the problem and sort it in one visit. Professional, efficient, and clearly knows his craft inside out. I couldn’t recommend Jennings more highly.Posted on Google Stella OforiTrustindex verifies that the original source of the review is Google. Tristan was very polite, friendly and very professional. He is also very good at his job and very efficient. Very happy with the service