Kent · London and the South East
Seal Electronic Leak Detection
A careful look at the flat roof membrane at your property in Seal, with photographs and a written report.
- Leaking laps in the waterproofing
- Leaks through a flat roof with no obvious cause
- Leaks showing away from the breach
How electronic leak detection works in Seal
Not every flat roof suits electronic testing. Some membranes conduct electricity themselves and some roofs do not have a suitable layer beneath the membrane. If your roof isn’t suitable, we’ll tell you at the start. Any details you have about the membrane and build-up help us decide, like drawings or specifications. It avoids arranging a test that cannot give results. We’re often asked to look into breaches hidden under paving or planting and new roofs to check before paving or planting, across roof terraces and balconies, flat roof membranes and single-ply roofs.
In a small place like Seal, a flat roof can stand in the open, which is hard on edges, upstands and joins in the covering. Felt roofs, which often last around 15–20 years, usually show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. Exposed edges are normally the first part of a flat roof to go.
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, whichever applies.
- Location
- Seal (TN15)
- Region
- Kent
- Prices
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Questions from Seal
Do you carry out roof surveys in Seal?
Yes, Seal is one of the places we work. Every survey there gets the same written report with photographs, and visits run on weekdays and weekends.
Is Seal within the area you cover?
We do. A small place gets exactly the same survey as a big one, with the route planned beforehand.
How much time does ELD need?
It usually takes longer on a large roof than a small one, and the build-up of the roof makes a difference too.
Is this an asbestos survey?
No. Asbestos surveys and testing aren’t part of what we do. We flag materials that could contain asbestos, such as cement sheets or soffits on pre-2000 buildings.
Are you insured?
Every survey is covered by professional indemnity and public liability insurance, and we can provide details if a managing agent needs them.
Can you survey in bad weather?
It can, depending on the survey. Drones cannot fly safely in high wind or heavy rain, and thermal imaging works best after a sunny day, with a dry roof and little wind. If the conditions are not right, we’ll talk to you about another date.
Do I have to be there for the survey?
It depends on what we need to see. Inside the building and in the loft, we need someone to let us in; we’ll agree the details when you book.
What affects the price in Seal
A few things affect what a survey costs:
- The shape of the roof and its details
- The number of roofs, including extensions and garages
- The type of building, from a house to a block or an office
- If the survey needs thermal imaging or a drone
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before you book.
Booking your survey
If you can, have these to hand when you get in touch:
- Photos of the roof, taken safely from the ground or a window
- When you need the report by
- Where water is showing inside, if it is
- The reason for the survey, such as buying, a leak or storm damage
Getting a price is simple: just call 07833 053749 or email us, let us know about the property and we’ll point you to the right survey. We confirm the price before anything is booked.
Electronic leak detection in Seal: local notes
Handmade clay tiles, including Kent peg tiles hung on pegs through two holes, are typical of older Kent buildings. The county’s older buildings also include oast houses and timber-framed Wealden hall houses. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. Knole House, about 1.8 miles south, is one of the historic houses in the wider area around Seal. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and a listed home or one in a conservation area may need consent for changes of material.
If you live in an older home near Church of St Peter and St Paul, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear. For landlords with property near Bat & Ball station, flat roofs on let property tend to be checked only when they fail, which is the costly way round. If you look after a building like Seal Church of England Voluntary Controlled Primary School, a large flat roof with plenty of outlets and rooflights has many places where a membrane can fail.
Seal is about 2 miles north-east of Sevenoaks, in Kent. Seal is one of many places we visit across Kent. Seal is one of the places in Kent where we work for electronic leak detection. Maidstone is in our area too.
Every address in TN15 is within our area for electronic leak detection, from the main roads to the quietest streets. You will find streets such as High Street, Church Road and Jubilee Rise. Neighbouring places we cover for electronic leak detection include Greatness (1 mile west), Godden Green (1 mile south), Styants Bottom (2 miles east), Stone Street (2 miles south-east) and Bitchet Green (2 miles south-east). We also work in nearby towns such as Maidstone (13 miles east), Dartford (11 miles north), Royal Tunbridge Wells (11 miles south), Gravesend (12 miles north-east), Tonbridge (7 miles south) and Northfleet (11 miles north-east).
Local landmarks in Seal
Around Seal, our work takes us to homes and buildings near Wildernesse School, Kemsing Down and The Five Bells Public House, among other places. For rail, the closest station is Bat & Ball station, roughly 1.1 miles west of the centre. Well-known places in the area include Sevenoaks Hospital (1.1 miles west) and Sevenoaks Museum (1.7 miles south-west). Open spaces near Seal include Dryhill Nature Reserve.
Why get it checked now?
Water trapped under a membrane can soak insulation and decking. Locating it early helps limit the damage. In a place like Seal, a barn or garage roof left to fail puts whatever is inside at risk. It is worth including them in a survey before a winter does the damage.
For a price for your roof in Seal, call 07833 053749 or drop us an email with the address and some details. We will confirm the figure before booking.
What you get with us
- Drone and thermal imaging surveys available
- 98% of customers satisfied
- More than 5,000 surveys completed
- Surveys seven days a week
Take a look at how roof surveys are priced or our case studies.
Checking the roof from ground level
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date, which helps when we check the roof.
Your own check is a good start, but it isn’t a survey. From ground level, valleys, flashings and the backs of chimneys are often out of sight.
What we look for on each type of roof
Single-ply membranes
Single-ply can be punctured by tools or fixings. ELD can locate them.
Green and ballasted roofs
ELD is easier on a new roof before it’s covered.
What we can’t see
In fairness, a roof survey has limits:
- How wet the insulation is
- Areas we can’t reach or that cannot be tested
- Leaks from plumbing or windows
If you’re not sure which survey you need, call 07833 053749 or email us and we will give you a straight answer before booking. What a survey covers and doesn’t.
What we look at
- Commercial flat roofs
- Liquid-applied waterproofing
- Roof terraces and balconies
- Flat roof membranes
- Single-ply roofs
- Green roofs
What else we do in Seal
The survey, step by step
We photograph the roof as we go, so you can see in the report what we found and where. We take close-ups from wherever is safe, including by drone where it’s applicable and the weather allows. A typical visit takes a time that depends on the roof’s area and construction, which we set out in the quote. Older roofs in small places like Seal can have low, tight loft spaces, so tell us about the loft hatch and any ladder. Only areas that can be reached safely are inspected.
- First, we confirm which roof areas are included.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- Each breach found is located and recorded.
- The report is sent for your roofer to act on.
Getting ready for the survey
- Let us know where we can park nearby
- Make sure pets are kept safely away
- Make a note of anything you’d like us to look at
How to book
We confirm the price for your survey before booking, so you know where you stand. Electronic leak detection is quoted for your roof, because the method depends on the roof. For a price for your roof, phone 07833 053749 or use the contact form.