West Sussex · London and the South East
Twineham Electronic Leak Detection
Independent electronic leak detection in Twineham. We’ve completed more than 5,000 surveys across London and the South East.
- Leaks at pipes, outlets or fixings
- Breaches hidden under paving or planting
- Leaking laps in the waterproofing
Electronic leak detection for homes and businesses in Twineham
Electronic leak detection, or ELD, finds holes in flat roof waterproofing membranes. It uses a small electrical current that passes through the membrane only where there is a breach. It can find holes too small to spot by eye, so your roofer can repair them. You get a report with photographs of each breach found. Common reasons to book are new membranes needing a check before handover and damp inside with no sign on the roof, on liquid-applied waterproofing, roof terraces and balconies and single-ply roofs.
Older buildings in small places like Twineham 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. Finding out what state the roof is in gives you the facts to plan with. Changes that affect a listed building’s special interest need listed building consent.
It is not only a list of defects. For each finding, it explains what it is, why it matters and what we’d recommend, so you can plan your next steps.
- Place
- Twineham (RH17)
- Region
- West Sussex
- Prices
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
How we price electronic leak detection
To price your survey, we look at:
- Any need for thermal images or a drone flight
- How many separate roofs there are, such as extensions, dormers and garages
- How big the roof is
- How tall the building is and how easy the roof is to see
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You will know the figure before booking.
Booking your survey
Here’s what helps us most when you get in touch:
- The property’s address and postcode
- Any photos you have, taken from the ground or a window
- The style of property, from a terrace to a block
- Where any leaks, stains or damp patches show inside
Our phone lines are open seven days a week. To book or ask a question, ring 07833 053749 or email us.
What this survey cannot tell you
We only report whatever is safely visible on the day, so there are some things a survey cannot cover:
- Repairing the breaches (that is for your roofer)
- Build-ups without a suitable layer below
- Leaks from plumbing or windows
If in doubt, call 07833 053749 or use the contact form and we’ll recommend the right survey. What our survey covers.
What we check
- Green roofs
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs
- Single-ply roofs
- Liquid-applied waterproofing
Why it’s worth a survey now in Twineham
Repeated call-outs for the same leak add up. A clear record of where the breaches are helps break that cycle. Older cottages and farmhouses around Twineham can have roof timbers that have been there a very long time, and water through a failed covering can rot timber if it’s left.
For a price for your roof in Twineham, call 07833 053749 or drop us an email with the address and a few details. We’ll confirm the figure before booking.
Why book with us
- An independent view of the roof
- Two decades and more of roof surveys
- Covered by professional indemnity and public liability insurance
- Drone and thermal imaging surveys available
Read what a roof survey costs and our case studies.
Useful tips for Twineham property owners
These tips come from what we see on roofs every week:
- Consider ELD before paving or planting goes on
- Limit access to the roof
- Use boards when working on the roof
- Do not keep patching the same spot
Once repairs are made, the roof can be tested again if you want to check them if the build-up allows.
ELD before paving, ballast or planting goes on is worth considering. It is easier to find holes before more layers are added.
The survey, step by step
Once we’ve finished looking, we write up our findings as a photo-illustrated written report. As for time on site, it typically takes as long as needed for the membrane area and the build-up, and we’ll give you a guide when quoting. Somewhere as small as Twineham, access is often the only tricky part. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Weekday and weekend visits are available.
- We start by finding out what the roof is made of and where it leaks.
- We check that the membrane and build-up suit electronic leak detection.
- The method depends on the membrane and what sits above and below it.
- Testing runs across the roof to locate breaches in the membrane.
- We send a report with photos of each breach so your roofer can repair it.
Getting ready for the survey
- Find any records of previous roof work
- Point out any leaks or damp patches
- For a flat or shared roof, check access with whoever owns or manages the building
Booking a survey
Getting a price is simple: just call 07833 053749 or send us an email, let us know about the property and we will suggest the right survey. The price is agreed up front.
Advice
What electronic leak detection looks like in Twineham
Many older homes in Sussex have handmade clay tiles and tile-hung walls. A few old Sussex buildings still carry heavy Horsham stone slabs. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. Historic houses such as Ockenden Manor, about 4.1 miles north-east, show how far back building in the area around Twineham goes. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead.
Landlords with a home close to Burgess Hill station may find that flat roofs over rear additions and dormers in rented property are worth checking between tenancies. If you look after a building like Twineham CofE Primary School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season. The streets around a church such as The Parish Church of St Peter are often 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.
Twineham is about 4 miles west of Burgess Hill, in West Sussex. Houses, flats, blocks and commercial buildings in Twineham can all book electronic leak detection, with a written report and photographs every time. Twineham is one of the places in West Sussex we cover for electronic leak detection. Brighton is in our area too.
We work across RH17 for electronic leak detection. We also cover the places around Twineham: Twineham Green (1 mile north), Wineham (1 mile west), Crosspost (2 miles north), High Cross (2 miles south) and Kent Street (2 miles north-west). Larger places within reach include Crawley (10 miles north), Horsham (8 miles north-west), Worthing (13 miles south-west), Haywards Heath (6 miles north-east), Burgess Hill (4 miles east) and East Grinstead (14 miles north-east).
What’s near Twineham
In Twineham, that means homes and buildings near St Paul's Catholic College, among other places. Twineham’s nearest station is Burgess Hill station, about 3.7 miles east of the centre. Other landmarks nearby include The Dene Hospital (2 miles east) and Burgess Hill Museum (3.6 miles east). Green spaces nearby include Bedelands Farm Nature Reserve and Wolstonbury Hill.
Nearby places to Twineham
Other services in Twineham
Questions from Twineham
Will you come out to Twineham?
Yes, smaller places are covered as well as towns. We cover the whole of London and South East England. Just mention lanes, gates or anything else about the route when booking.
Is my home in Twineham listed or in a conservation area?
We cannot confirm that for you, but Historic England’s list and your council can. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
Do you need to get into the loft?
If it is needed and safe to reach, yes. Inside, we look for damp, staining, gaps and sagging, as far as the space allows.
Is my roof suitable for ELD?
It depends on the membrane and the build-up. Tell us what you know about the roof and we’ll check whether ELD will work.
Will you fly a drone over my roof?
Where it helps and the rules allow, yes. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and the airspace and weather are checked before every flight.
Are you structural engineers?
No. We’re roof surveyors, not structural engineers. We’ll recommend an engineer if we see signs that call for one.
Do I need to be at home?
It depends on what we need to see. For inside areas and the roof space, someone has to give us access; we will agree the details as you book.
For landlords and managing agents
Roof problems in a rented home affect tenants as well as the building. A survey helps you spot issues early and plan the work with less disruption.
Landlords and letting agents in Twineham book surveys as well as homeowners. The report gives you a dated record of the flat roof membrane, with photos.