Is your central heating system dropping pressure? You might have a hidden leak!

Dedicated leak detection, Welwyn Garden City

Non-invasive water leak detection in Welwyn Garden City, Hertfordshire

Choose the leak detection experts near you

Harmuns is a specialist non-invasive leak detection company with a very local engineer, Dan, who covers Welwyn Garden City and other nearby areas in Hertfordshire.

Dan finds, accesses and fixes the leaks that a plumber cannot, including central heating and mains leaks under the ground and other awkward leaks that are difficult to locate.

Need help with detecting a leak in Welwyn Garden City?

Harmuns engineers are all gas-safe qualified heating engineers, therefore Dan is fully able to investigate a boiler if you have a central heating leak in Welwyn Garden City. 

Dan is highly experienced and has been a gas-safe engineer and qualified plumber involved with leak detection for over 20 years. Dan is able to find, access and fix your leak in Welwyn Garden City.

A quality service that you can trust

Leak detection Welwyn Garden City

Dan and other Harmuns engineers use a combination of specialist equipment to find, access and fix your leak in Welwyn Garden City. Leaks are found using thermal imaging cameras, moisture mapping, acoustics, tracer gas, drones, salts analysis and other equipment.

Trace and Access

If your insurer has asked you to find a leak detection company that can do trace and access surveys, please contact Harmuns. After every job, we send a full report with photos and – if appropriate – videos which you can send to your insurer for your leak in Welwyn Garden City.

Boiler losing pressure

If your boiler is losing all pressure, please contact Harmuns. If it is not the boiler and there is no evidence of a leak, it lends itself to being a leak under the ground floor. If you live in Welwyn Garden City, Dan will build take the time to build the evidence of where the leak is. Depending upon how quickly you are losing all pressure, you may qualify for a ‘no find no fee’ offer. Dan, having found the leak, will then access and fix it for you in Welwyn Garden City.

Mains leaks

If your water bill has suddenly and dramatically increased or if your water company has been in touch with you to say they believe you have a leak, please call Harmuns. Dan will trace your mains leak. Depending upon where it is and how you want it dealt with, Dan will be able to access and fix it or offer advice on a more suitable solution.

Awkward leaks

If you have already had an unsuccessful plumber visit to try and trace your leak in Welwyn Garden City, please contact Harmuns. Dan will spend the time building the evidence and will then access and fix it for you.

So for your awkward leaks in Welwyn Garden City please call Harmuns. We are ready to help.

Acoustic equipment

Leak detection specialists in Welwyn Garden City

If you have a hard to find leak in Welwyn Garden City and you don’t know who to ask, then please contact Harmuns. We are a small but growing company that is based in Windsor, but we have engineers who are able to work from home and cover their local areas. We are always willing and able to give advice.

If you live in Welwyn Garden City and need leak detections services, we can put you in direct contact with Dan, your local leak detection engineer.

We pride ourselves on our customer service and the technical ability of our engineers and we are very proud of our very strong reviews on Google, Trustpilot, Yell, Trustist and Checkatrade.

We use specialist non-invasive equipment to find your leak, including acoustic detection, tracer gas detection, thermal imaging, moisture meters, salts analysis, borescope cameras. Our engineers are highly experienced, gas-safe registered and cover all of Welwyn Garden City. So for all difficult water leaks, give us a call on 01753 378569

Here are some common questions that pop up about Leak Detection

Our office is in Windsor, but we have engineers that are located all across the South-East of England, meaning that we can operate in a number of locations including Hertfordshire, Sussex, Buckinghamshire, Kent and Oxfordshire.
Damp patches, a loss of boiler pressure, the sound of running water without any taps being on or an unexplained increase in your water bills can all be tell-tale signs of a leak somewhere in your property.
Yes, depending on your specific circumstances. Please ask our office about our ‘no find, no fee’ system when you initially speak to us.
We have access to a huge range of non-invasive water leak detection equipment, including pipe locators, endoscope cameras, thermal cameras, salt analysis equipment, moisture meters, acoustic sensors, tracer gas and hygrometers. These tools are specifically designed to identify leaks accurately, while minimising damage to the property.
Yes, all of our engineers are highly qualified, time-served gas safe heating engineers with years of leak detection experience.
Yes, we will send you a full report with photos so that you are able to send it to your Insurance company if you are claiming under your trace and access insurance policy.

Contact us for hidden
leak detection!

We fix the leaks
that you can't find

We are not an emergency plumber. If you have a visible leak, please contact your local plumber.

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