Leak Detection in Hitchin
Finding hidden leaks across SG4 and SG5 - without ripping the house apart
Most of the leak callouts we attend in Hitchin come from one of three places: pinhole leaks in old copper pipework buried under solid Victorian floors, slow weeps from joint failures behind tiled bathroom walls in 1930s semis, and underground mains leaks where the supply pipe crosses driveways and patios in newer Ickleford properties. The trick is finding the source quickly – and without taking up half the kitchen floor to do it.
Specialist non-invasive equipment, full insurance reports, and we work with all major insurers and loss adjusters.
Why hidden leaks are so common in Hitchin properties
A lot of Hitchin’s housing stock is between 80 and 130 years old, and the heating and water pipework underneath the original floors is rarely as old as the house but often 40–60 years old. Soft copper pipe laid in the 1960s and 70s sits under solid concrete kitchen extensions, gets buried in sand-and-cement screed, and slowly corrodes from the outside in. By the time you see a damp patch on the ceiling below or a water bill that’s tripled overnight, the leak has usually been running for weeks.
Hard water from the chalk aquifers also accelerates corrosion at copper joints. We see far more pinhole leaks in Hitchin than in soft-water areas – it’s not unusual at all to find one in a property that’s never had a problem before.
Book a non-invasive leak detection survey
How we find leaks without destroying the house
Thermal imaging cameras
An infrared camera shows temperature differences across walls, floors and ceilings. A hot spot on a cold floor usually means a hot water pipe leaking underneath; a cold patch in a warm ceiling usually means cold mains escaping above. The camera tells us within minutes which area to investigate further, before we lift a single tile.
Acoustic leak detection
Highly sensitive ground microphones pick up the sound of escaping water travelling through pipework. Particularly useful for underground mains leaks where there's no visible damp at all - we can often pinpoint the leak to within 10–15cm before any digging starts.
Tracer gas detection
A safe, non-toxic gas (usually a hydrogen-nitrogen mix) is introduced into the system at low pressure. The gas escapes at the leak point and is picked up by a sensor on the surface. This is our go-to method for tricky underground heating leaks where thermal imaging hasn't given a clear answer.
Endoscopic cameras
Compact high-resolution cameras let us inspect cavities, voids and pipework internally without cutting holes. Useful for confirming a leak source before we commit to lifting flooring or breaking through a wall.
The properties where leaks are hardest to find
Victorian terraces with kitchen extensions
The original house and the 1980s rear extension often have completely different pipework eras buried under different floor types. We typically thermal image the whole ground floor first, then narrow in with acoustic detection. Most leaks in these properties are found within 60 minutes.
Underground mains supply leaks
Common in properties with long supply runs from the road - particularly older village properties in Pirton, Offley and Charlton where the supply might run 20–30m across a driveway. Acoustic detection narrows the leak location before any ground is broken.
1930s semis with tiled bathroom walls
Slow leaks behind tiled walls can run for years before showing up as damp on a downstairs ceiling. An endoscopic camera through the back of an airing cupboard or into a stud wall void usually finds the source without ripping out the bathroom.
Insurance work and reporting
We work routinely with all major UK insurers and loss adjusters, and provide full written reports with photographs, thermal images and findings. If your insurer is paying for the leak detection, we can invoice them directly in most cases. Tell us the insurer name when you book and we’ll handle the paperwork.
Why Choose Vantage?
With over 700 five-star reviews, fully qualified and accredited engineers, transparent pricing, and a 12-month labour guarantee on every job, Vantage delivers reliable, high-quality workmanship you can trust with no call-out fees, fast response times, and genuine local service.
- Five-star Google reviews
- Gas Safe Registered No. 956889
- CHAS Registered
- City & Guilds qualified
- Checkatrade approved
- 12 month labour guarantee on every job
- Fully stocked vans most jobs fixed on the first visit
- 24/7 emergency availability
- Finance available on eligible installations
- Established local business with a dedicated office team and multiple qualified engineers
- No job too small
- No call-out fee first hour diagnosis from £99 for the first hour + VAT, then a fixed price is provided before any work begins
- 700+ reviews across Google, Checkatrade, Trustatrader & Trustpilot 4.9 star average
Areas we cover for Leak Detection in Hitchin
Also Letchworth, Baldock, Stevenage, Knebworth and Codicote. SG4 or SG5, we’re with you.
FAQs
How quickly can you actually get to a leak in Hitchin?
For active leaks where water is visible or the meter is spinning, same-day in most cases. For non-emergency investigations (a damp patch you’ve been watching for a few weeks), usually within 2–3 working days.
How long does the leak detection survey take?
Most domestic leak surveys take 1–3 hours on site. Underground mains and complex multi-floor leaks can take 4–6 hours. We give you a fixed price before we start and provide written findings before we leave.
Will my insurance pay for the survey?
Most home insurance policies cover trace-and-access costs as a separate line item to the repair itself, with limits typically £5,000–£10,000. Check your policy wording or ring your insurer. We provide invoices and reports formatted for insurance claims.
Will you have to break into walls or floors?
Almost never as a first step. Our equipment locates leaks non-invasively in the vast majority of cases. If breaking through is unavoidable to confirm or repair the leak, we’ll tell you exactly where and why before doing anything.
My water bill has tripled but I can't see any leak - what now?
Classic underground supply leak symptom. Turn your stopcock off, watch the water meter for 30 minutes – if it’s still moving, you’ve got a leak after the meter on your property. Acoustic detection along the supply run usually finds it within an hour.
Do you fix the leak as well as find it?
Yes – we’re a full plumbing and heating company, not just a detection service. Once we’ve located the leak, we give you a fixed price for the repair before any work starts. 12-month labour guarantee on every repair.
Book a leak detection survey for your Hitchin home
Fixed-price survey, written report, and we handle the insurance side if you need us to.