How to Prepare for a Leak Detection Survey at Your Property

If you have booked a professional leak detection survey — or you are considering one — you might be wondering what to expect on the day. The good news is that modern non-intrusive detection is quick, quiet, and causes no damage. However, a few simple preparations can help the engineer work more efficiently and get the best results.

Before the Survey

There are a few things you can do ahead of the appointment to help:

• Locate your water meter — if you know where it is, let the engineer know. It is usually near the front boundary of the property
• Locate your internal stopcock — this is typically under the kitchen sink. The engineer may need to turn water on and off during testing
• Clear access to external pipework — move any bins, plant pots, or garden furniture away from the area where the supply pipe enters the property
• Note any symptoms — write down what you have noticed, such as damp patches, higher bills, low pressure, or unusual sounds

What Happens During the Survey

A typical leak detection survey involves several stages:

• Visual inspection — the engineer will check for obvious signs of water damage inside and outside the property
• Pressure testing — the supply pipe is isolated and pressurised to confirm whether a leak is present
• Acoustic detection — ground microphones and listening equipment are used to detect the sound of water escaping from the pipe
• Thermal imaging — if the leak is suspected inside the property, infrared cameras can reveal hidden moisture behind walls and beneath floors

The entire process is non-invasive. There is no digging, no drilling, and no damage to your property. Most surveys take between one and two hours, depending on the complexity of the situation.

After the Survey

Once the survey is complete, the engineer will explain the findings and recommend the best course of action. This might include:

• A targeted repair at the point of the leak
• A full new supply pipe installation if the existing pipe is in poor condition
• A lead pipe renewal if the pipe material is a concern
• A find and fix service to resolve the issue in a single visit

You will receive a clear explanation of the problem, the options available, and a no-obligation quote for any recommended work.

Why Early Detection Matters

The longer a leak goes undetected, the more damage it can cause — and the more water is wasted. If you have noticed any signs of a hidden leak, booking a professional survey is the fastest way to get answers and protect your property.