Water Mains Leak Detection
Professional water mains leak detection services for residential and commercial properties across the East of England and Greater London. If you suspect a main water pipe leak between your meter and property, our specialists use advanced tracer gas, acoustic listening, and thermal imaging technology to locate the exact leak point — without unnecessary excavation. We detect underground water leaks in supply pipes quickly and accurately, helping you avoid ongoing water loss and costly damage.
- Precise Leak Location
- Non-Invasive Methods
- Underground Specialists
- Detection & Repair
Booking: We can usually book you in within 24–48 hours.
Request Your Quote
Fast, Non-Invasive Mains Leak Detection
Signs You Need Water Mains Leak Detection
A water main leak on your supply pipe can waste thousands of litres and cause significant damage before you even notice. Recognising the early warning signs helps you act quickly and minimise costly repairs.
💷 Unexplained High Water Bills
A sudden spike in your water bill without increased usage is a strong indicator of a water main leak. Even small underground leaks can waste significant amounts over time, costing you money every day they go undetected.
⏱️ Water Meter Running When Off
If your water meter continues running when all taps and appliances are turned off, you likely have a leak on your main water line. This simple test often reveals hidden supply pipe issues.
📉 Low Water Pressure Throughout Property
A noticeable drop in water pressure across your entire property often indicates a significant leak in your main water pipe. Unlike localised issues, mains leaks affect every tap and outlet.
🌊 Wet Patches in Garden or Driveway
Unexplained damp areas, pooling water, or unusually lush grass patches along your supply pipe route suggest an underground water leak. These signs often appear above the buried mains pipe.
Professional water mains leak detection
Additional Warning Signs
How We Detect Water Mains Leaks
Our water main leak detection specialists use industry-leading technology specifically designed for locating underground water leaks. Every piece of equipment is chosen to pinpoint your leak accurately without unnecessary excavation.
Tracer Gas Detection
The gold standard for underground leak detection. We introduce safe hydrogen gas into your mains pipe, which escapes at the leak point and rises through soil and hard surfaces to be detected with millimetre precision.
Acoustic Ground Microphones
Sensitive acoustic listening equipment detects the sound of escaping water underground. Our specialists can identify leak sounds through concrete, tarmac, and soil.
Pipe Locating Equipment
Before detection begins, we accurately map your main water pipe route using electromagnetic pipe locators. This ensures we search in the right areas and understand your supply layout.
Thermal Imaging Cameras
Where supply pipes run under floors or near buildings, thermal imaging identifies temperature anomalies caused by escaping water saturating surrounding areas.
Correlation Equipment
For longer supply pipe runs, correlation technology uses two sensors placed at different points to calculate the exact leak location based on sound travel time.
Pressure Testing
Systematic pressure testing confirms leak presence and helps assess severity before pinpointing begins. This ensures we're addressing an active leak, not residual moisture.
Specialist equipment for water mains leak detection
Our Water Mains Leak Detection Process
Our systematic main water line leak detection process combines advanced technology with expert analysis. From initial contact to repair, we guide you through every step of resolving your mains leak.
Initial Consultation
We discuss your symptoms, check if your water company has notified you, and understand your property layout. This helps us prepare the right equipment for your water main leak detection survey.
Pipe Route Mapping
Using pipe locating equipment, we trace your main water pipe from the meter to your property. Understanding the exact route is essential for accurate leak detection.
Leak Confirmation
We perform pressure tests and meter checks to confirm an active leak exists on your supply pipe before proceeding with pinpointing equipment.
Precision Detection
Using tracer gas and acoustic equipment, we pinpoint your underground water leak location accurately — minimising excavation needed for repairs.
Detailed Report
You receive comprehensive documentation including leak location, photographic evidence, and repair recommendations. This report supports insurance claims and provides clear next steps.
Water Main Repair
Our team can carry out your water main leak repair using proven methods. We excavate only where necessary and restore your water supply efficiently.
Systematic mains leak detection process
Why Choose Complete Leak Detection
Looking for a water main leak detection company you can trust? Complete Leak Detection specialises in finding and fixing underground water leaks with minimal disruption to your property.
Underground Specialists
We specialise in locating leaks in buried supply pipes where other methods fail. Our tracer gas technology finds leaks under driveways, gardens, and hard surfaces.
Minimal Excavation
Precise detection means targeted digging. We pinpoint your main water pipe leak accurately so repairs require the smallest possible excavation.
Insurance Documentation
Detailed reports with photographs support your insurance claim. We document everything clearly for your records and insurers.
Detection & Repair
Complete service from finding your leak to fixing your water main. One team handles everything, reducing delays and handover issues.
Local Coverage
Serving residential and commercial properties across the East of England and Greater London. We understand local ground conditions and pipe types.
Quick Booking
We can usually book you in within 24–48 hours. The sooner we detect your leak, the sooner you stop losing water and money.
Get a Water Mains Leak Detection Quote
We're confident in our equipment and expertise. Get in touch today for a no-obligation quote — we can usually book you in within 24–48 hours.
What Our Customers Say
Common Water Mains Leak Issues We Solve
Our water main leak detection services address a wide range of supply pipe problems. Whatever your situation, we have the expertise and equipment to help.
🔧 Leaking Supply Pipe
Leaks on the pipe between your water meter and property boundary. We detect and repair these main water line leaks that are your responsibility, not the water company's.
💥 Burst Main Water Pipe
Sudden pipe failures causing significant water loss and potential flooding. We locate burst main water pipes quickly to minimise damage and restore your supply.
🚿 Leaking Mains Stopcock
Problems with your external stop tap or main water shut off valve causing leaks at the boundary. We diagnose and resolve stopcock issues efficiently.
🏠 Under-Driveway Leaks
Supply pipes running beneath driveways and hard surfaces are difficult to access. Our underground water leak detector technology finds these without destroying your driveway.
👥 Shared Supply Pipes
Properties sharing a supply pipe need careful investigation to identify which section is leaking. We locate leaks on shared mains accurately to establish responsibility.
📋 Water Company Notifications
Received notice from Anglian Water, Cambridge Water, or Thames Water about a leak? We help you locate and resolve the issue.