West Sussex · London and the South East
Electronic leak detection in Blackstone, West Sussex
Electronic leak detection to pinpoint holes in flat roof membranes around Blackstone, with findings in writing and pictures to back them up. Book a weekday or weekend visit.
- Holes left by work on the roof
- Stains far from any visible defect
- Leaks through a flat roof with no obvious cause
Common questions in Blackstone
How do I find out if my home in Blackstone is listed?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Do you carry out roof surveys in Blackstone?
Yes, Blackstone is within the area we cover. We cover the whole of London and South East England. Just call 07833 053749 or use the contact form and let us know about the property.
What if it rains on the day?
A survey can typically go ahead in light rain. Heavy rain or strong wind can ground a drone and make the roof unsafe, so we’ll agree a new date if the weather is not suitable.
Will you walk on the roof?
Only if it is safe. We inspect everything that’s safely in view: from ground level, from windows, from inside the roof space, from the roof where it is safe and by drone where it applies. The report says if anything couldn’t be seen.
Can you inspect my roof with a drone?
Yes, where it is applicable. Whether we can fly on the day depends on the weather and the airspace rules, including flight restriction zones near airports. We hold a CAA Flyer ID and Operator ID.
How is ELD priced?
Each roof is quoted on its size and build-up. Tell us about the roof and where it leaks. Just ring 07833 053749 or use the contact form for a quote.
Will you repair the leak?
No. We test the membrane and report. You get the breach locations with photos so your roofer can fix them.
How electronic leak detection works in Blackstone
ELD suits many waterproofing membranes on flat roofs, on homes, blocks and commercial buildings. It helps trace a leak you already have or check a new membrane before handover. Each roof is quoted on its size and build-up. Testing can be carried out on weekdays, Saturdays or Sundays, depending on the weather. Just ask about your roof. Common reasons to book are leaks that return after repairs and failed seams and laps, across roof terraces and balconies, single-ply roofs and liquid-applied waterproofing.
In a small place like Blackstone, 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. 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.
Nothing in the report is left vague: if work is needed, the report says so clearly, and where it can wait, that’s said too.
- Where
- Blackstone (BN5)
- Region
- West Sussex
- Price
- Quoted for your roof
- Report
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
What we look for on each type of roof
Green and ballasted roofs
Roofs with planting or ballast hide the membrane. Some methods can work through these layers, depending on the build-up.
Single-ply membranes
ELD often works on single-ply membranes but it depends on the product and layers.
Flat and commercial roofs around Blackstone
Older houses across Sussex frequently have handmade clay tiles, and many have tile-hanging on their upper walls. A few old Sussex buildings still carry heavy Horsham stone slabs. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. What can be done to an older roof may depend on listing or a conservation area. The council is the place to check, along with Historic England’s list, ideally before any re-roofing is planned.
Take an older house close to The Parish Church of St Bartholomew: the flat roofs on later extensions tend to wear out long before the main roof.
Blackstone is about 5 miles west of Burgess Hill, in West Sussex. We survey roofs in Blackstone across London and South East England. Our area takes in places right across West Sussex. There’s also a page for Brighton.
We survey roofs across the BN5 postcode area for electronic leak detection. Whether your property is on Blackstone Lane and Blackstone Street or a nearby road, we can survey it. We also cover the places around Blackstone: Woodmancote (1 mile south-west), High Cross (1 mile north-east), Albourne (1 mile east), Albourne Street (1 mile east) and Albourne Green (1 mile east). We also work in nearby towns like Crawley (13 miles north), Horsham (10 miles north), Worthing (10 miles south-west), Haywards Heath (8 miles north-east), Burgess Hill (5 miles east) and Littlehampton (15 miles south-west).
Around Blackstone
The closest station to Blackstone is Hassocks station, about 3.9 miles east of the centre. Well-known places in the area include The Dene Hospital (3.8 miles north-east) and The Budding Foundation Museum of Gardening (3.6 miles east). For a walk, there is Woods Mill and Wolstonbury Hill.
Tips that help
Small things make a difference. Our tips:
- Test new membranes before covering them
- Find the breach before more patching
- Note where leaks show inside and when
- Check trades protect the waterproofing
File the report with your roof paperwork. It shows the condition of the membrane on that date.
Clear flat roof outlets regularly. Water that sits on the roof finds breaches faster.
Nearby places to Blackstone
Other services in Blackstone
How we price electronic leak detection
What a survey costs depends on the time and equipment it needs. The main factors are:
- Extensions, dormers and garages with roofs of their own
- The height of the building and how the roof can safely be seen
- Whether thermal imaging or a drone is needed
- Whether it is a home or a commercial building
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 safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.
What to tell us when you contact us
A little information up front helps. Please include:
- How the loft is reached, if there is one
- Dates you are working to, such as exchange
- Any marks or damp showing indoors
- What made you get in touch
Most bookings start with a short call: phone 07833 053749 or drop us an email. You’ll have a price before anything is arranged.
When to book a survey in Blackstone
Roofs covered with paving, ballast or planting hide the membrane. ELD can work on some covered roofs though it depends on the layers.
Most people get in touch when they’ve noticed something like this:
- Gaps at membrane joints
- Water coming in under a flat roof
- Patched roofs that still leak
- Breaches around outlets and penetrations
For landlords with property near Hassocks station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Before you book anyone
- What the survey won’t cover
- Whether they hold professional indemnity and public liability insurance
- Will the report include photos?
- Whether the loft is part of the inspection
How it works
Every visit follows the same pattern: we hear what you’ve seen, inspect the roof from every safe viewpoint, photograph what we find and record our findings for the written report. Most visits take a length of time set by the membrane area and the build-up, and we’ll give you a guide when quoting. Somewhere as small as Blackstone, access is often the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Visits can be on weekdays, Saturdays or Sundays.
- 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.
Before the survey
- Gather any invoices or paperwork from past roof work
- Check pets are kept safely away
- For a flat or shared roof, check access with whoever owns or manages the building
Book a survey
You can call us seven days a week, including Saturdays and Sundays. To book or ask a question, ring 07833 053749 or use the contact form.
Related advice
Should I look at the roof myself first?
If you have a loft with safe access, take a look inside. Take a torch and only step on boards or joists, and look for staining, damp timber or daylight coming through.
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Share it with us when booking.