Kent · London and the South East
Electronic leak detection in Longfield Hill, Kent
Find out what’s going on with the flat roof membrane before you decide what to do next. Electronic leak detection in Longfield Hill.
- Breaches around outlets and penetrations
- Failed seams and laps
- Stains far from any visible defect
About our electronic leak detection in Longfield Hill
Our ELD testing covers flat roofs in Longfield Hill and the rest of London and South East England. A visit usually takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. We quote electronic leak detection for each roof, as the method and time depend on the roof. The results come in a written report with photos. We survey commercial flat roofs, single-ply roofs and liquid-applied waterproofing, and common reasons people get in touch are a flat roof leak that can’t be traced and new roofs to check before paving or planting.
Flat roofs on exposed homes in small places like Longfield Hill take more wind and rain, which is hard on edges, upstands and joins in the covering. Older felt roofs, frequently around 15–20 years in life, show it first. Rubber and GRP last longer, though trims and joints still need a look. Exposed edges are normally the first part of a flat roof to go.
The report records the flat roof membrane as we found it on the day. It is useful straight away, and a good reference for later, like when you want to compare after future work.
- Location
- Longfield Hill (DA3)
- Wider area
- Kent
- Prices
- Quoted for your roof
- Report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026

DIY checks: what’s safe
A lot can be seen from the ground. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please do not climb up for a closer look.
The one thing to avoid is getting up close. Roofs are fragile and slippery, and a fall can be serious. That is where a survey comes in.
Longfield Hill: your questions answered
Is the coastal weather around Longfield Hill hard on roofs?
It can do. Longfield Hill is within about 5 miles of the sea, and coastal roofs tend to see faster wear on metal parts and more wind lifting loose pieces.
Is Longfield Hill within the area you cover?
Yes, Longfield Hill is covered. We cover the whole of London and South East England, from towns to the smallest villages. The journey is planned ahead, so it’s useful to know about access.
Does ELD work under paving or planting?
In some cases. It depends on the build-up and the layers above the membrane and parts may need to be lifted. We will discuss it before we quote.
What happens after the survey?
You’ll receive the report by email, and what you do next is up to you: use it with a seller, an insurer, a roofer or a managing agent.
How long have you been surveying roofs?
We have more than 20 years’ experience and have completed over 5,000 surveys.
What insurance do you have?
Professional indemnity and public liability insurance cover our surveys. Ask if you need details for a managing agent or building owner.
Do I have to be there for the survey?
Not always. An outside-only look can be arranged beforehand, but the loft and any rooms with damp need someone to let us in.
Honest limits
Every survey has limits, and we’d rather be clear about that before booking. Bear these in mind:
- How wet the insulation is
- Build-ups without a suitable layer below
- Water entering through details rather than the membrane
Not sure which survey suits your roof? You can call 07833 053749 or email us and we will tell you. What our survey covers.
Roofs we survey in Longfield Hill
- Commercial flat roofs
- Flat roof membranes
- Liquid-applied waterproofing
- Green roofs
- Single-ply roofs
- Roof terraces and balconies
How we price electronic leak detection
Several things affect the price of a survey:
- Building height and the viewpoints available
- The roof’s overall size
- Extensions, dormers and garages with roofs of their own
- Whether it’s a home or a commercial building
Bigger, taller and commercial roofs take more time to survey, so the price reflects that. The price is confirmed before you book.
What to let us know when you contact us
You don’t need to know any roofing terms. Just let us know:
- Where any leaks, stains or damp patches show inside
- What kind of property and roof it is
- Anything about access we should know
- Where the property is, with the postcode
Getting a price is simple: just phone 07833 053749 or drop us an email and give us a few details about the property and we will explain which survey suits. The price is agreed up front.
What happens if roof problems are left?
Opening up a roof to hunt for a leak is disruptive. Electronic testing finds the hole first so your roofer knows where to work. Where a roof is exposed, as many are in small places like Longfield Hill, driving rain gets into any weakness, and older walls, once damp, take a long time to dry.
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the price for your survey before booking.
Why us?
- More than 20 years surveying roofs
- Over 5,000 surveys carried out
- Independent findings on the roof’s condition
- Visits on any day of the week
Take a look at how roof surveys are priced or our case studies.
Electronic leak detection in Longfield Hill: local notes
Longfield Hill lies within about 5 miles of the sea, and being near the sea means more wind and salt than a roof inland would face. On a flat roof near the sea, edge trims and upstands take the brunt of the wind, and metal parts corrode faster. Handmade clay tiles, including Kent peg tiles hung on pegs through two holes, are typical of older Kent buildings. You will also find oast houses and timber-framed Wealden hall houses among the county’s older buildings. Mixed in with those pitched roofs are lots of flat ones, over rear extensions, dormers, garages and shops.
Historic houses like Cobham College, about 2.8 miles east, show how far back building around Longfield Hill goes. Older houses nearby frequently have flat roofs added much later, built to very different standards from the main roof. Take an older house close to Church of St Mildred: the flat roofs on later extensions tend to wear out long before the main roof. If you look after a building such as Istead Rise Primary School, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Longfield Hill is about 3 miles south of Northfleet, in Kent. We survey roofs in Longfield Hill across London and South East England. Our Kent coverage includes Longfield Hill. For surveys nearby, see our Maidstone page.
We cover every part of DA3 for electronic leak detection. We offer electronic leak detection to properties on Main Road, Nurstead Lane and Ryecroft. Other places close to Longfield Hill include New Barn (1 mile north-west), Hartley (1 mile west), Nash Street (1 mile north-east), Meopham (1 mile south-east) and Longfield (1 mile north-west). Further out, we also cover Maidstone (12 miles south-east), Dartford (6 miles north-west), Sevenoaks (10 miles south-west), Gravesend (4 miles north-east), Tonbridge (13 miles south) and Northfleet (3 miles north).
Landmarks near Longfield Hill
Around Longfield Hill, our work takes us to homes and buildings near Rectory Meadow and Longfield Academy, among other places. The nearest railway station is Meopham station, roughly 1 mile east of the centre. Well-known places in the area include Stone Castle (4.5 miles north-west) and Gravesham Community Hospital (4 miles north). Open spaces near Longfield Hill include Sawyers Lake.
Also near Longfield Hill
Other services in Longfield Hill
What happens on the day
The aim of the visit is simple: to see as much of the flat roof membrane as can safely be seen and record it clearly. Everything we note and photograph goes into the written report. It typically takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. Somewhere like Longfield Hill needs a little journey planning: let us know about lanes, gates and parking. The roof is looked at from the ground, from windows, from the loft where there is safe access and from the roof where it’s safe.
- We agree the area to be tested.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- The report is sent for your roofer to act on.
How to prepare
- If the roof is shared, arrange access with whoever manages the building
- Find any records of previous roof work
- Let us know where we can park nearby
Arrange a survey
Most bookings start with a short call: call 07833 053749 or email us, and we will ask about the building and what you need. You’ll have a price before anything is arranged.
Advice
Before and after the survey
A little preparation and a few simple habits help, both for the survey and for the roof itself. Some pointers:
- Make sure trades protect the waterproofing
- Note where leaks show inside and when
- Don’t keep patching the same spot
- Test new membranes before covering them
Where the evidence points to walls, copings or rooflights, we’ll note it, with a suggestion of what to check next.
ELD before paving, ballast or planting goes on is worth considering. Finding breaches is simpler at that stage.