Kent · London and the South East
Electronic leak detection in Key's Green, Kent
We take a careful look at the flat roof membrane at your property in Key's Green, and put it all in a written report with photos.
- Breaches hidden under paving or planting
- Holes around roof penetrations
- Damage from equipment installers
About our electronic leak detection in Key's Green
ELD suits many waterproofing membranes on flat roofs over offices, units, blocks of flats and homes. It can be used to trace an existing leak or check a new membrane before handover. We quote for each roof based on its size and build-up. We can test on weekdays and at weekends, depending on the weather. Let us know about your roof to find out more. We survey flat roof membranes, single-ply roofs and liquid-applied waterproofing, and common reasons people get in touch are breaches around outlets and penetrations and leaks showing away from the breach.
Older buildings in small places like Key's Green may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. Check with the council before planning any change of material. Knowing the roof’s condition is the starting point. Changes that affect a listed building’s special interest need listed building consent.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent.

- Location
- Key's Green (TN12)
- Region
- Kent
- Prices
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Flat and commercial roofs around Key's Green
Many older homes in Kent have handmade clay tiles, including Kent peg tiles held by pegs through two holes, and tile-hanging on their upper walls. Oast houses and timber-framed Wealden hall houses are part of the county’s older buildings too. Next to the main roofs there is normally a flat roof somewhere, whether on an extension, a garage or a commercial unit. The wider area around Key's Green has a long history of building, with Scotney Castle about 3.6 miles south-east. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area.
The streets around a church such as Chapel Of Ease Of St Luke are frequently among the oldest in a place, and if yours is one of the older homes nearby, the joins between later flat roofs and the old walls are where problems normally start.
Key's Green is about 4 miles east of Royal Tunbridge Wells, in Kent. Key's Green is part of the area we cover as part of our work across London and South East England. Key's Green is one of the places in Kent where we work. You can also see our page for Maidstone.
We survey roofs across TN12 for electronic leak detection and the streets around it. We offer electronic leak detection to properties on Cryals Road and Beech Lane. We also cover Lamberhurst Quarter (1 mile south), Petteridge (1 mile north-east), Pembury (2 miles north-west), Matfield (2 miles north-east) and Brenchley (2 miles north-east). Within a short drive, we also cover Maidstone (12 miles north-east), Sevenoaks (13 miles north-west), Royal Tunbridge Wells (4 miles west), Tonbridge (6 miles north-west), Kings Hill (10 miles north) and Foley Park (13 miles north-east).
Around Key's Green
Typical jobs here are in homes near Brenchley Wood and The Blue Boys Inn and the streets around them. Key's Green’s nearest station is Frant station, roughly 3.5 miles south-west of the centre. A little further out are Pembury Hospital (2.4 miles north-west) and Old Scotney Castle (3.7 miles south-east). Not far away are Bewl Water and Tudeley Woods RSPB reserve.
Places near Key's Green
Other services in Key's Green
The survey, step by step
Safety comes first on every visit. We inspect everything that’s safely in view, and if part of the roof can’t be seen, the report says so. The survey usually takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. Older rural homes like those around Key's Green can have a main roof, lower lean-to roofs and outbuildings all joined together. Each part is looked at from wherever it can safely be seen, and anything we can’t see is noted.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- The roof is assessed to see if electronic testing will work on it.
- The method depends on the membrane and what sits above and below it.
- We test the membrane and find where current is passing through it.
- We send a report with photos of each breach so your roofer can repair it.
Getting ready for the survey
- Make sure we can get to the back of the property
- Note where any stains or damp appear
- Keep pets inside or away from the areas we’re looking at
Booking a survey
Getting a price is simple: just ring 07833 053749 or use the contact form, let us know about the property and we’ll explain which survey suits. We confirm the price before anything is booked.
Advice
What affects the cost of electronic leak detection
Every roof is different, so prices are confirmed before you book. These are the things that affect it:
- The shape of the roof and its details
- The number of roofs, including extensions and garages
- How tall the building is and how easy the roof is to see
- Any need for thermal images or a drone flight
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You’ll know the figure before booking.
Booking your survey
To price your survey accurately, we’ll ask about:
- Where the property is, with the postcode
- Access details, like a loft hatch or a shared roof
- Any photos you have, taken from ground level or a window
- Why you want a survey: buying, a leak, a storm or new work
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. For any other survey, just ring 07833 053749 or drop us an email when you’re ready.
When to book a survey in Key's Green
If a flat roof keeps leaking after patching, the hole may be elsewhere. ELD can locate the breach more precisely.
Signs worth acting on include:
- Leaks showing away from the breach
- Leaks under green or ballasted roofs
- Holes around roof penetrations
- Failed seams and laps
For landlords with property near Frant station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Questions to ask before you book
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- Whether you get a written report with photos
- Whether the price includes VAT
- What follow-up you get after the report
Why it’s worth a survey now in Key's Green
Some breaches are too small to see. ELD picks up breaches a visual check might miss where the roof suits it. Outbuildings and barns around Key's Green are easy to forget, but a failed roof there can spoil what’s stored inside. It’s worth including them in a survey before a winter does the damage.
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why book with us
- Satisfaction rate of 98%
- Drone flown under a CAA Flyer ID and Operator ID
- 20+ years’ experience
- Insured for professional indemnity and public liability
Read our cost guide or two real surveys.
Key's Green: your questions answered
Is my home in Key's Green listed or in a conservation area?
The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.
Is Key's Green within the area you cover?
Yes. Key's Green is within the area we cover, which takes in towns, villages and rural addresses. We work right across London and South East England. Just mention lanes, gates or anything else about the route as you book.
Do you need to get into the loft?
Yes, where the survey calls for it and there is safe access. We look for staining, damp, daylight and signs of movement, as far as the space allows.
How fast do I get the report?
Report times are set by the package. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. If you have a deadline, such as an exchange date, tell us as you book.
Do I have to be there for the survey?
Not necessarily. If we only need the outside, we can agree that in advance, but the loft and any rooms with damp need someone to let us in.
How much time does ELD need?
It usually takes longer on a large roof than a small one, with the construction of the roof playing a part too.
What’s in the survey report?
You get our findings in writing, part by part, with photos, and ends with what we recommend. Points are put with the most urgent first where relevant.
What this survey can’t tell you
We only report everything that’s safely in view on the day, so some things are outside what a survey can do:
- Areas we cannot reach or that can’t be tested
- Roofs whose membrane or build-up isn’t suitable
- Leaks from plumbing or windows
If in doubt, ring 07833 053749 or use the contact form and we’ll point you to the right survey. What a survey covers and does not.
Roof types and parts we check
- Commercial flat roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Green roofs
- Flat roof membranes
- Single-ply roofs
How the survey changes by roof type
Green and ballasted roofs
Some layers may need lifting for testing. We explain what’s needed when we quote.
Single-ply membranes
Single-ply membranes are common on commercial and newer roofs. Seams and penetrations are typical breach points.