ADI Leak Detection Reviews 

1,632
•
TrustScore 4.5 out of 5

4.7

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Review summary

Created with AI, based on recent reviews

Looking at 322 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the professional and polite engineers who arrive punctually on site, explaining every single step of the leak detection process thoroughly and clearly. Many people also appreciate the efficient service and friendly communication from the office team, ensuring that appointments are booked and handled smoothly from start to finish. Some reviewers were not happy with high charges, unexpected costs, and billing practices related to the services provided. A few other people also felt that certain site visits left unresolved technical issues or caused noticeable property disruption during the work.

What people talk about most

Staff

Reviewers express immense satisfaction with staff, frequently highlighting the professional, polite, and... See more

Service

Reviewers highlight positive aspects of service, praising engineers for arriving promptly, working... See more

Customer service

People report positive experiences with customer service, highlighting clear communication and very friendly... See more

Customer communications

Consumers find customer communications to be positive, noting that from the initial contact, the customer... See more

Price

Customers consistently note mixed feelings regarding the pricing. While some reviewers felt the rates were... See more

Reviews shaping this summary

Rated 5 out of 5 stars

Had a leak somewhere on my external cold main water supply. Spoke with Christian at ADI who took the details and walked me through the whole process and what to expect. A quote was sent and ac... See more

Rated 5 out of 5 stars

Excellent service from start to finish. Great communication with the customer service team at first and then Craig came and was reassuring, explained what he was doing each step of the way and thankfu... See more

Rated 5 out of 5 stars

Hamaad was such a great engineer. he was the 3rd contractor to attend and attempt to locate the leak in my property. 3rd time was the charm. Hammad found the source after conducting a series of checks... See more


Company details

  1. Plumber

Written by the company

Water leak detection services specialists in the UK will find and repair water leaks on Central Heating, Water Mains & Swimming Pools. Call 0800 731 3843.


Contact info

4.7

Excellent

TrustScore 4.5 out of 5

2K reviews

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No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

Replied to 26% of negative reviews

Typically replies within 1 week

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4.7

All reviews

(1,632)

306 reviews in the last 12 months

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Rated 2 out of 5 stars

They did not deliver on the promise

ADI did not find a water leak on my property between the street and the house, or inside the house, yet there is a significant and very costly leak. They have fewer tools than the standard utility company for locating the standard utility services. They use the words "Tracing", but the marketing is misleading, as they cannot trace or tell where a pipe goes 75-90cm below the surface if it's not leaking. A whole tank of gas got pumped into our pipework without any results. Okay, faint readings next door by tree roots, but is that really where the pipe goes? We still have absolutely no idea. In fact, after a day's visit we are no wiser with a lighter wallet. The only solution will be to dig up the whole drive and install a brand new pipe, costing thousands. I'm not happy.

16 June 2026
Unprompted review
Rated 5 out of 5 stars

Thank God for Kristof from ADI

Thank God for Kristof from ADI! After several hours of very thorough investigations, he managed to find the very highly likely source to my long standing damp issue.
Although ADI services are not cheap, it was money well worth spent - you pay for what you get!

Thank you Kristof and ADI.

20 June 2026
Unprompted review
Rated 5 out of 5 stars

Quick and professional

Quick and professional. They were able to send out an engineer the following day after my call. Over the phone, Lauren was very patient, and explained everything I needed to know. The engineer that came out was Artur Sowa who was extremely friendly and professional. He was extremely detailed and eventually traced and fixed the leak. He even gave me some advice on what I should do next to resolve the water damage done, and to prevent any further damage. Definitely would recommend ADI.

16 June 2026
Unprompted review
Rated 5 out of 5 stars

Trace and repair of emergency water leak from lead supply pipe.

Contacted ADI Leak Detection after 3 previous plumbers had been unable to successfully trace exact source of water leak in kitchen.
Christian, who was incredibly helpful and patient, managed late in the day to quote and schedule a call out visit the next day (out of hours - Saturday).
Kristof was absolutely fantastic...punctual, conscientious, friendly and tidy. He's a remarkably skilled and trustworthy plumber, with a calm and confident demeanor. A godsend in our emergency:-)
Most grateful and highly recommend.

13 June 2026
Unprompted review
Rated 5 out of 5 stars

Bl**dy excellent

Bloody excellent! We had a mystery of a leaking something. We weren’t sure what. Kristof went through everything and systematically ticked off the possibilities. In the end he figured it out and saved us from tearing up our tile floor.

15 June 2026
Unprompted review
Rated 5 out of 5 stars

excellent ADI

The two engineers were excellent. Kristof and Darren. They explained exactly what they were planning to do and before we knew, they had made sure the leak was in the same place as believed by the first engineer who came, dug a deep hole, found the leak, repaired it and filled it up and finally made good. We would certainly recommend ADI.

11 June 2026
Unprompted review
Rated 5 out of 5 stars

Kristof was very thorough.

Kristof was very thorough and explained everything to me, showing me a video of the leak recorded using his remote camera. He identified the problem and explained what needed to be done to fix it.

12 June 2026
Unprompted review
Rated 5 out of 5 stars

Excellent service.

Hamaad was very prompt, friendly and professional. He attended my property to track and trace a leak coming from an upstairs neighbour’s flat.

He was very courteous and knowledgeable, gaining the complete confidence of my neighbour and tracked the leak quickly, giving a clear explanation of the necessary repair.

His input was invaluable, in what could otherwise have been quite a difficult conversation.

8 June 2026
Unprompted review
Rated 5 out of 5 stars

Hamaad a fantastic engineer

Hamaad was such a great engineer. he was the 3rd contractor to attend and attempt to locate the leak in my property. 3rd time was the charm. Hammad found the source after conducting a series of checks. after finding the source he then conducted further tests to make sure it wasn’t a combination of issues. Really nice guy, very friendly and communicates his findings accurately. definitely seems to put the customer first which I really appreciated.

5 June 2026
Unprompted review
Rated 5 out of 5 stars

Mark and Kristof from ADL

Mark and Kristof from ADL exceeded our expectations today, their knowledge and experience cannot be matched . Please don’t hesitate.We were so confused as to which company to choose from google . Judith Weybridge Surrey

5 June 2026
Unprompted review
Rated 5 out of 5 stars

The engineer (Robert) was on time and…

The engineer (Robert) was on time and very polite. He carried out the testing of the system expertly and informed me about what he was doing at every stage, he demonstrated great skill and knowledge in his work and with confidence. He located the fault and not long after the system was up and running again, I would have no hesitation in recommending Robert.

5 June 2026
Unprompted review
Rated 5 out of 5 stars

Artur was very polite and friendly.

Artur was very polite and friendly.

I could hear a leak in the house and realised it was underground. Artur arrived and checked for dampness in the floors internally and externally and all was dry so ascertained the water must be going into the ground.

He quickly found the leak behind the dishwasher and dug access into the floor exposing the copper pipe and water leak. The leak was repaired and Artur cleaned up behind him.

Very good work and service.

5 June 2026
Unprompted review
Rated 5 out of 5 stars

Excellent work by ADI

Artur and Gabor were very efficient and friendly. The site is a 40 acre country estate with multiple heritage properties and long runs of aging pipework, so potentially a difficult job. A previous contractor had dug multiple inspection pits without result, but the ADI guys located the leak (which was from a joint a metre underground) in a couple of hours using gas equipment. Excellent work by the ADI guys.

4 June 2026
Unprompted review
Rated 5 out of 5 stars

Great service and work from Frank.

Great service and work from Frank on the day. Identified and fixed the problem very efficiently and quickly. I like the follow up report and photographs.. helpful with insurance! This is perhaps not the best value service for simple plumbing issues..use them if leaks and problems are more challenging to identify.

1 June 2026
Unprompted review
Rated 5 out of 5 stars

Top job from Robert

Top job from Robert, attending site on time and grafted until the job was finished, nothing was a hassle, would highly recommend Robert and ADI leak detection

2 June 2026
Unprompted review
Rated 5 out of 5 stars

Very helpful!

It was an amazing experience. The gentleman, Paul Hope, was extremely helpful and explained everything in great detail. Very good conversationalist and very trusting and was able to solve the issue very quickly. He was a very good worker and went the extra mile to insure that everything was done properly.

27 May 2026
Unprompted review
Rated 5 out of 5 stars

Water leak found

Used ADI for a water leak we suspected was underground just outside our house. James found it was due to water meter and was very helpful explaining next steps on how to sort this with water company. He worked quickly and it barely disrupted our day which I appreciate as I had the children at home. The quotation and appointment were set by Lauren. Both James and Lauren were very professional and efficient which was stark contrast to another company we’d contacted prior.

26 May 2026
Unprompted review

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