Kent · London and the South East
Colt's Hill Electronic Leak Detection
Not sure what state the flat roof membrane is in? We carry out electronic leak detection in Colt's Hill and across Kent.
- Holes left by work on the roof
- Failed seams and laps
- Leaks through a covered membrane
About our electronic leak detection in Colt's Hill
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It works with an electrical current that passes through the membrane only where there is a breach. It can find holes too small to spot by eye so your roofer knows exactly where to repair. The results come in a report with photos. Typical surveys look at patched roofs that still leak and leaks under green or ballasted roofs, on commercial flat roofs, single-ply roofs and liquid-applied waterproofing.
Older buildings in small places like Colt's Hill may be listed or in a conservation area, which can shape what a new flat roof may look like. If you’re planning work, check with the council first. Finding out what state the roof is in gives you the facts to plan with. Changes that affect a listed building’s special interest need listed building consent.
Where we cannot see part of the flat roof membrane, the report says so. That way, it’s clear what was covered and what wasn’t, and what we’d suggest next.
- Where
- Colt's Hill (TN12)
- Region
- Kent
- Cost
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
What electronic leak detection looks like in Colt's Hill
Across Kent, older roofs are often handmade clay or peg tiles, and tile-hanging on upper walls is a familiar sight. Kent’s older buildings take in oast houses and timber-framed Wealden hall houses as well. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops. England has around 10,000 conservation areas and about 500,000 listed buildings. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material, so the council is the place to ask.
If you own a rental within reach of Paddock Wood station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. If you own one of the older houses in the streets near Five Oak Green Church, the joins between later flat roofs and the old walls are where problems normally start.
Colt's Hill is about 4 miles south-east of Tonbridge, in Kent. Colt's Hill gets the same service as everywhere else we work: a careful look at everything that’s safely in view, photographs and a clear written report. We cover towns and villages across Kent, from the larger towns to small villages. There is also a page for Maidstone.
Here we cover the TN12 postcode area for electronic leak detection. Streets in the area include Colts Hill and Maidstone Road, all of which we cover. Other places close to Colt's Hill include Capel (1 mile west), Five Oak Green (1 mile north), Paddock Wood (1 mile east), Matfield (1 mile south-east) and Whetsted (1 mile north-east). Within a short drive, we also cover Maidstone (10 miles north-east), Sevenoaks (11 miles north-west), Royal Tunbridge Wells (5 miles south-west), Tonbridge (4 miles north-west), Kings Hill (7 miles north) and Foley Park (11 miles north-east).
Near you in Colt's Hill
Around Colt's Hill, our work takes us to homes and buildings near The Dovecote Inn, Foal Hurst Wood and Mascalls School. The nearest railway station is Paddock Wood station, about 1.5 miles north-east of the centre. A little further out are Tonbridge Castle (4.1 miles north-west) and The Hop Farm Museum (2.3 miles north-east). The countryside around Colt's Hill includes Barden Lake and Tudeley Woods RSPB reserve.
What we do, step by step
Time on site depends on the size and shape of the roof; as a rough guide, the survey takes a time that depends on the roof’s area and construction, and we’ll give you a guide when quoting. If you have questions on the day, just ask. Somewhere as small as Colt's Hill, access is often the only tricky part. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Visits can be on weekdays, Saturdays or Sundays.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
Before the survey
- If you’re buying, let the agent know when we are coming
- Find any records of previous roof work
- Keep pets inside or away from the areas we’re looking at
Getting a price
To book a survey, call 07833 053749 or use the contact form with the address and what you’d like to know about the roof. We’ll confirm the price before booking.
Related advice
Prices for electronic leak detection in Colt's Hill
Every roof is different, so prices are confirmed before booking. These are the things that affect it:
- The type of building, from a house to a block or an office
- Height and safe access
- The use of thermal imaging or a drone
- The roof’s overall size
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Helping us price your survey
To price your survey accurately, we’ll ask about:
- Your postcode, so we can check access and travel
- What made you get in touch
- Any marks or damp showing indoors
- What kind of property and roof it is
Getting a price is simple: just ring 07833 053749 or use the contact form, let us know about the property and we’ll recommend the right survey. The price is agreed up front.
Nearby places to Colt's Hill
Also in Colt's Hill
Signs you need electronic leak detection in Colt's Hill
Joints and laps in a membrane can fail over time. A gap that is hard to see can let water in for months before it shows.
People typically book a survey after spotting something like this:
- New membranes needing a check before handover
- Stains far from any visible defect
- Breaches around outlets and penetrations
- Punctures from foot traffic or tools
Take a building like Capel Primary School: ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Questions to ask before booking
- Whether the loft is part of the inspection
- Their track record with similar roofs
- Whether the price includes VAT
- What they will not be able to tell you
Tips from our surveys
There’s plenty you can do without going near the roof. Here’s what helps most:
- Consider ELD before paving or planting goes on
- Note where leaks show inside and when
- Ask contractors to protect the membrane
- Have roof specifications to hand
You receive a report showing where each breach was found, with photographs. Your roofer uses it to carry out repairs.
Act on leaks quickly. The longer water gets in, the more insulation and decking can be affected.
How the survey changes by roof type
Green and ballasted roofs
Green roofs and ballasted roofs cover the waterproofing. Testing may still be possible but it depends on the layers.
Bituminous membranes
Bituminous roofs frequently have laps and old repairs where breaches occur. Testing depends on the roof.
FAQs for Colt's Hill
Is my home in Colt's Hill listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. It’s worth checking before planning roof work, as both can affect what’s allowed.
Do you carry out roof surveys in Colt's Hill?
Yes, Colt's Hill is one of the places we work. Every survey there gets the same written report with photos.
Can you survey a shared roof?
Yes. A shared roof needs access agreed first, with the building owner or managing agent. Tell us about it as you book and we will explain what’s needed.
Is my roof suitable for ELD?
Not every roof is suitable. Certain membranes are conductive and some roofs lack the layer the test needs. We’ll tell you if yours isn’t suitable before testing.
Can you tell me if my roof has asbestos?
No. We do not sample or test for asbestos. Where a material might contain it, such as old cement sheets on a building from before 2000, the report flags it, with a recommendation to have a specialist asbestos surveyor check before it’s disturbed.
Do you take photos of the roof?
Yes. Photos are part of every report, so you can see each point for yourself.
How does ELD work?
It uses an electrical current to find breaches in a flat roof membrane. The current only gets through where the membrane is breached, which shows us where the hole is.
What happens if roof problems are left?
Chasing a leak again and again is frustrating. A clear record of where the breaches are helps break that cycle. Matching old materials, like handmade tiles or stone slates, can take time to source. That is one more reason to find defects before they become urgent.
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the exact price before booking.
Why us?
- Covered by professional indemnity and public liability insurance
- Visits on any day of the week
- Over 5,000 surveys carried out
- Independent findings on the roof’s condition
See our cost guide or two real surveys.