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Hidden Water Leaks
Rising water bills, damp patches or musty smells with no obvious source can point to a hidden leak behind walls, under floors or within pipework. We narrow down the likely area before any work begins.
Harrow & North-West London
Specialist Leak Detection in Harrow
Primeline provides specialist leak detection for domestic and commercial properties in Harrow and across North-West London. Using acoustic detection, tracer gas and thermal imaging, we locate hidden, internal, underground and supply pipe leaks quickly — and can carry out the necessary repair once the source is found.
20+ years' experience
Fully insured
Same-day service
Domestic & commercial
Leak detection in Harrow
Locating leaks other tests can miss.
A water leak isn't always visible. Primeline investigates domestic and commercial properties in Harrow and the surrounding area to find hidden, internal, underground and supply pipe leaks — without unnecessary digging or disruption.
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Internal Leaks
Leaks from internal pipework, bathrooms, kitchens and appliances can cause damage well beyond the source. We trace internal leaks through walls, ceilings and floor voids in homes and commercial units.
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Underground Leaks
Leaking underground pipework can waste water for months before it's noticed. We use specialist methods to pinpoint the location of underground leaks in gardens, driveways and yards before any excavation.
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Supply Pipe Leaks
A leaking supply pipe between the mains and the property can lead to low pressure and higher bills. We test and trace supply pipe runs across Harrow properties to confirm exactly where the leak is.
Specialist equipment
Finding leaks without guesswork.
We use a combination of specialist diagnostic methods to narrow down the source of a leak before any work starts, reducing unnecessary disruption to the property.
Acoustic Leak Detection
Specialist listening equipment helps identify the sound and location of escaping water through pipework and surrounding materials.
Tracer Gas Leak Detection
Tracer-gas testing can help locate difficult leaks in pipework where the source cannot be identified by visual inspection alone.
Thermal Imaging
Thermal cameras identify temperature differences behind floors, walls and ceilings that can indicate a leak or damp pathway.
Moisture Testing
Moisture meters confirm damp levels in walls, floors and ceilings, helping to identify the extent of water ingress and its likely source.
Pressure & Diagnostic Testing
Pressure and flow testing help confirm whether a leak exists and can narrow down which section of pipework is affected.
How it works
From leak to repair.
A straightforward process designed to identify and resolve a Harrow leak as efficiently as possible.
1
Call or enquire
Tell us what's happening, where the property is in Harrow or North-West London and whether the problem is urgent.
2
Locate the leak
We use acoustic detection, tracer gas, thermal imaging, moisture testing or pressure testing to narrow down the source.
3
Repair
Once the leak is located, Primeline can carry out the necessary plumbing repair to fix it.
Real Primeline work
Leak detection in action.
A selection of equipment, investigations and repairs from real Primeline leak detection jobs.
Thermal imaging
Acoustic detection
Moisture testing
Tracer gas testing
Underground investigation
Supply pipe repair
Internal pipework
Diagnostic testing
Flow testingAreas we cover
Harrow & nearby North-West London.
Primeline provides domestic and commercial leak detection across Harrow, with nearby North-West London locations covered subject to engineer availability.
Harrow & Wealdstone
Specialist investigation for hidden, internal, underground and supply pipe leaks in homes, flats and commercial premises.
Harrow · Wealdstone · central Harrow · surrounding areas
Kenton & North Harrow
Responsive leak detection for neighbouring parts of Harrow, with same-day attendance subject to availability.
Kenton · North Harrow · nearby North-West London
Leak detection · Harrow
Think you've got a hidden leak?
Call Primeline directly for the fastest response. Overnight attendance is available, and same-day attendance is subject to availability. Call-out fees apply.
Frequently asked questions
Quick answers before you call.
Do you provide leak detection in Harrow?
Yes. Primeline provides specialist leak detection for domestic and commercial properties in Harrow and across North-West London, including North-West London.
What leak detection methods do you use?
Depending on the situation, we use acoustic detection, tracer gas, thermal imaging, moisture testing and pressure or diagnostic testing to help identify the source of a leak.
Can you repair the leak once it's found?
Yes. Once a hidden, internal, underground or supply pipe leak has been located, Primeline can carry out the necessary plumbing repair.
Do you attend leak call-outs 24/7?
Yes. Primeline offers 24-hour emergency attendance, including overnight call-outs, across Harrow and our other service areas.
Can you attend the same day?
Same-day attendance is available subject to engineer availability and location. For urgent leaks in Harrow, call 020 3488 1229.
Do you work on commercial properties in Harrow?
Yes. We carry out leak detection for landlords, letting agents, property managers, shops, offices and other commercial premises as well as domestic homes.
Contact Primeline
Call us or send an enquiry.
For a suspected leak in Harrow or North-West London, calling is the fastest way to reach us. For non-urgent enquiries, send the details below and Primeline will get back to you.
24/7 PHONE
020 3488 1229
EMAIL
info@primeline.uk
INSTAGRAM
@primelineltd
SERVICE AREA
Harrow · Wealdstone · Kenton · North Harrow · North-West London
PRICING
Call-out fees apply · No prices published online