Medway · London and the South East
Grain Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes for Grain, from an experienced roof surveyor. You get a clear written report with photos.
- Leaks at pipes, outlets or fixings
- New membranes needing a check before handover
- Repairs that haven’t stopped the leak
Electronic leak detection for homes and businesses in Grain
Roofs covered with paving, ballast or planting need more thought. The layers on top can limit the methods we can use, and some may need lifting. We’ll discuss it with you when we quote. Drawings or details of the roof’s layers are useful because they show what’s under the surface. If testing is not possible, we’ll say so. We survey single-ply roofs, liquid-applied waterproofing and roof terraces and balconies, and common reasons people get in touch are leaking laps in the waterproofing and repairs that haven’t stopped the leak.
In a small place like Grain, a flat roof can stand in the open, which is hard on edges, upstands and joins in the covering. Older felt roofs, frequently around 15–20 years in life, 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.
We keep jargon out of it: where something needs attention, it says so plainly.
- Where
- Grain (ME3)
- Region
- Medway
- Cost
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
Why act early in Grain
Cutting open a flat roof to find a leak can cause more damage. Electronic testing finds the hole first so your roofer knows where to work. Matching old materials, such as handmade tiles or stone slates, can take time to source. That is one more reason to find defects before they become urgent.
To find out what your survey will cost, call 07833 053749 or use the contact form and tell us about the roof. We’ll confirm the figure before booking.
What you get with us
- More than 20 years surveying roofs
- Thermal imaging and drones used where they help
- Professional indemnity and public liability insurance
- CAA-registered drone operator (Flyer ID and Operator ID)
Read how roof surveys are priced and two real surveys.
For landlords and managing agents
Shared roofs need a little more planning: access has to be agreed with whoever owns or manages the building. Tell us about it when booking and we will plan the survey around it.
Letting agents often book on a landlord’s behalf, with the report sent to whoever needs it. Access is agreed with the tenant in advance.
Electronic leak detection around Grain
Grain lies within about 1 mile of the sea, where sea air brings more salt and stronger wind than inland. On a flat roof near the sea, edge trims and upstands take the brunt of the wind, and metal parts corrode faster. 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 check with the council.
Take an older house close to Church of St James: 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 Sheerness-On-Sea station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Grain is about 5 miles north-west of Minster, in Medway. We cover Grain and the rest of Medway, as part of our work across London and South East England. Our Medway coverage includes Grain and the places around it. We also survey roofs in Maidstone.
Every address in ME3 is covered for electronic leak detection, from the main roads to the quietest streets. You will find streets like High Street, Power Station Road and Chapel Road. Neighbouring places we cover for electronic leak detection include Wallend (1 mile west), Blue Town (2 miles south-east), Sheerness (2 miles south-east), Queenborough (3 miles south-east) and Rushenden (3 miles south). Further out, we also cover Gillingham (8 miles south-west), Chatham (10 miles south-west), Rochester (10 miles south-west), Rainham (8 miles south-west), Strood (11 miles south-west) and Luton (10 miles south-west).
Landmarks near Grain
In Grain, that means homes and buildings near The Hogarth Inn. The nearest railway station is Sheerness-On-Sea station, about 2.1 miles south-east. Well-known places in the area include Bluetown Heritage Centre (1.8 miles south-east).
Honest limits
In fairness, a roof survey has limits:
- Moisture spread under the membrane
- Roofs whose membrane or build-up isn’t suitable
- Leaks from plumbing or windows
Not sure which survey suits your roof? You can phone 07833 053749 or send us an email and we will tell you. What our survey covers.
What we look at
- Liquid-applied waterproofing
- Commercial flat roofs
- Roof terraces and balconies
- Flat roof membranes
- Single-ply roofs
- Green roofs
FAQs for Grain
Is my home in Grain listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. Either can affect what roof work is allowed, so it is worth checking before planning any.
Will you come out to Grain?
Yes, Grain is covered. We survey roofs across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Will you check the loft?
If the survey needs it and the loft space can be reached safely, yes. A clear path to the hatch helps.
What does electronic leak detection do?
It uses an electrical current to find breaches in a flat roof membrane. The current only gets through where the membrane is breached so we can pinpoint it.
Which days do you carry out surveys?
Visits run seven days a week in the daytime, which suits people who work during the week. Just say which days work for you.
Do you test for asbestos?
No. Our report may flag materials that could contain asbestos, but confirming it is a job for a specialist asbestos surveyor. It may be present in buildings built or refurbished before 2000.
How do you choose the testing method?
The method is chosen to suit the roof. Low-voltage testing typically needs a wet surface and high-voltage methods need the membrane dry and exposed.
Common roof problems in Grain
Seams are a common weak point in flat roof waterproofing. A gap that’s hard to see can let water in for months before it shows.
People typically book a survey when they’ve noticed something like this:
- Patched roofs that still leak
- Leaking laps in the waterproofing
- Punctures from foot traffic or tools
- Leaks through a flat roof with no obvious cause
If you look after a building such as St James Church of England Primary Academy, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
What to check before booking
- What happens after the report arrives
- What the survey won’t cover
- Will they check the loft as well as the outside?
- Whether you get a written report with photos
What happens on the day
Photographs are taken throughout the visit, so you can see in the report what we found and where. Close-ups come from the safest viewpoint available, including by drone where it’s applicable and the weather allows. Most surveys take more time on a big roof than a small one, and the build-up of the roof makes a difference too. Somewhere as small as Grain, access is frequently the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Weekday and weekend visits are available.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We confirm whether the roof is suitable for electronic testing.
- We pick the low-voltage or high-voltage method that suits the roof.
- We test the membrane and find where current is passing through it.
- The breaches are recorded with photographs in a report for your roofer.
Preparing for the visit
- Have keys ready for side gates, garages or roof access doors
- Find any records of previous roof work
- Let us know about any leaks, stains or damp patches you know of
How to book
Surveys can be booked for weekdays, Saturdays or Sundays. To find a date that works for you, call 07833 053749 or send us an email with the address and the days you’d prefer.
Related advice
Tips that help
These tips come from what we see on roofs every week:
- Limit access to the roof
- Note where leaks show inside and when
- Do not keep patching the same spot
- Have roof specifications to hand
File the report with your roof paperwork. It is a dated record of the membrane’s condition.
Make sure contractors protect the waterproofing when they work up there. Check the roof after they’ve finished.