Damp patch, falling boiler pressure or a water bill that keeps creeping up? Call us for a free quote on leak detection anywhere in Harpenden.
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A selection of some of the brands we service
Plumb Heating Ltd is a Gas Safe registered plumbing and heating company working across Harpenden and the AL5 area – the same local engineers behind our plumbing and heating services in Harpenden. We are a small, straightforward team: honest advice, clean work and prices agreed before we start.
For hidden leaks, we bring thermal imaging, acoustic listening equipment and tracer gas to your Harpenden home and trace the water back to its source – so the only thing that gets opened up is the small area above the leak itself.
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Many Harpenden houses are large, extended more than once and full of pipework hidden under suspended floors. Water can travel a long way before it shows. These are the clues our AL5 customers most often notice first:
In the bigger period homes on The Avenues, water runs along joists before it drips. A stain in the middle of a ceiling – nowhere near a bathroom – is often a leak several metres away.
A combi that keeps dropping below 1 bar with no visible drip is losing water from the heating circuit, usually from a pipe under the floor or behind a finished wall.
Redecorating over a damp skirting is common in older Harpenden homes. If the mark comes back in the same place, a slow leak from concealed pipework is the likely cause.
Rear extensions with underfloor heating or kitchen pipe runs set in screed can hide a leak for months. Lifting laminate or a warm, damp patch underfoot are early warnings.
Switch off every tap and appliance and watch the meter. If it keeps moving, water is leaving the supply – often on the long pipe run from the boundary on larger AL5 plots.
Harpenden's hard water leaves scale on compression fittings and valves. A white crust or green staining on a joint usually means it has been weeping for a while.
The method depends on where the leak is likely to be. In most Harpenden properties we use a combination of the three below.
Hot water pipes and wet areas show up clearly on a thermal camera. In period homes we use it to follow pipe runs beneath floorboards without lifting a whole room – and to map underfloor heating loops in modern extensions.
Water escaping under pressure makes a sound. Our listening equipment picks it up through floors, patios and driveways, which is ideal for supply pipe leaks on the longer plots around the Common.
When a pipe is buried deep or under concrete, we fill it with a harmless gas mix and detect where it rises to the surface. It is the most reliable way to find leaks on external mains feeding the house.
From Edwardian villas to new-build extensions, these are the jobs we see most often across AL5:
Common in the older housing stock – pinholes in copper or failing joints that slowly empty the heating system.
Long runs from the boundary stop tap under lawns and drives, usually first noticed on the water bill.
Damaged loops or manifold connections in screed, located with thermal imaging before any floor is lifted.
Failed seals, trays and concealed valves leaking into the ceiling below – a frequent cause of stains in bedrooms and lounges.
Scaled fittings and tired valves around unvented and vented cylinders.
Pipes in unheated spaces that split during cold spells and leak once they thaw.
In a large Harpenden house, the visible damage is often a long way from the leak. Finding the real source first is what keeps the repair small.
A typical leak detection visit in Harpenden follows these steps:
You tell us what you have noticed – stains, pressure loss, sounds, the water bill – and we check the obvious places before setting up any equipment.
A meter check and pressure test on the supply or heating system tells us whether water is escaping and roughly how fast.
Thermal imaging, acoustic listening or tracer gas, depending on the property, until the leak is pinpointed.
We explain where the leak is, what caused it and what the repair involves – before any work starts.
Most leaks are repaired the same day. If you are claiming on insurance, you get a written report with photographs.
We carry out leak detection across all parts of Harpenden and the surrounding Hertfordshire villages. These are the areas we cover most regularly:
Large Edwardian and Victorian homes with long concealed pipe runs under suspended floors. Water often travels along joists before it shows, so the stain on a ceiling can be some distance from the actual leak. AL5 2, AL5 4.
Spacious detached properties, many with long supply pipes running from the boundary stop tap to the house. Underground supply leaks here can run for months unnoticed – a rising water bill is often the first clue. AL5 3, AL5 5.
1930s semis, postwar family homes and newer builds. Central heating leaks and leaks around showers and bathroom fittings are the most frequent callouts in this part of town. AL5 5.
Residential streets with a mix of property ages, including many homes with modern extensions and underfloor heating – where thermal imaging is the quickest way to find a fault in the pipe loops. AL5 3.
Village properties, some with older pipework and long external water mains that are prone to developing leaks underground. Tracer gas and acoustic equipment work particularly well here. AL4, AL3.
Rural properties within easy reach of Harpenden. If you are unsure whether we reach your address, call and we will confirm straight away. AL3, SG4.
Not sure if we cover your postcode? Call us on 07501 619 738 and we will confirm straight away.
Thermal, acoustic and tracer gas equipment on every job
Gas Safe registered, fully qualified plumbing and heating engineers
Used to working carefully in period homes and large extensions
Detection and repair by the same engineer, often the same day
Price agreed up front – no surprises on the invoice
Insurance-ready reports with photographic evidence
Dust sheets down, mess cleared away before we leave
Local to AL5 and the surrounding villages
The longer a hidden leak runs, the more it costs to put right. Call Plumb Heating Ltd for leak detection in Harpenden – we will find it, explain it and, in most cases, fix it on the same visit.
contact@plumbheating.co.uk | Available 24/7 for emergencies
