West Sussex · London and the South East
Electronic Leak Detection in Alfold Bars
An experienced roof surveyor for electronic leak detection in Alfold Bars. Over 5,000 surveys and 20+ years behind us across London and the South East.
- Stains far from any visible defect
- Water coming in under a flat roof
- Repairs that haven’t stopped the leak
How electronic leak detection works in Alfold Bars
Electronic leak detection works on many flat roof membranes over offices, units, blocks of flats and homes. It can be used to trace an existing leak or to test a new membrane before it’s covered. Each roof is quoted on its size and build-up. We can test on weekdays and at weekends, depending on the weather. Tell us about your roof to find out more. Common reasons to book are gaps at membrane joints and holes around roof penetrations, on commercial flat roofs, roof terraces and balconies and liquid-applied waterproofing.
In a village or hamlet like Alfold Bars, flat roofs are usually on extensions, garages, outbuildings or barn conversions. The checks are the same as anywhere: the covering, the edges, the upstands and where water drains away. We simply plan the journey and access beforehand. Garages and outbuildings are easy to forget, so mention any you want included when booking.
We keep jargon out of it: if work is needed, the report says so clearly, along with how urgent it is.
- Place
- Alfold Bars (RH14)
- Region
- West Sussex
- Price
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- Survey days
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Signs you need electronic leak detection in Alfold Bars
Flat roof membranes can be punctured by foot traffic, dropped tools or debris. Many are tiny, but still let water through.
A survey can pick up problems like:
- Holes around roof penetrations
- Leaking laps in the waterproofing
- Water coming in under a flat roof
- New membranes needing a check before handover
For an older house near a landmark like Church of St Nicholas, later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear.
What to check before booking
- Whether VAT is in the quoted price
- Is there a chance to talk the report through?
- What the report includes, and whether it has photographs
- Their report turnaround times
Why get it checked now?
A visual inspection can miss tiny holes. Electronic testing can find breaches you cannot see by eye, on suitable membranes. Where a roof is exposed, as many are in small places like Alfold Bars, driving rain gets into any weakness, and older walls, once damp, take a long time to dry.
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 it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
What you get with us
- Thermal imaging and drone inspection where they help
- Photos and a written report every time
- Surveys seven days a week
- CAA-registered drone operator (Flyer ID and Operator ID)
Take a look at how roof surveys are priced or what we found on two real jobs.
Flat and commercial roofs around Alfold Bars
There are about 500,000 buildings on England’s list of listed buildings, and around 10,000 conservation areas. 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 the council is the place to ask. Older houses across Sussex often have handmade clay tiles, and many have tile-hanging on their upper walls. Horsham stone slab roofs survive on some old Sussex buildings. Next to the main roofs there is usually a flat roof somewhere, whether on an extension, a garage or a commercial unit.
For site and facilities teams at buildings such as Loxwood Primary School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Alfold Bars is about 9 miles west of Horsham, in West Sussex. We survey roofs in Alfold Bars as part of our work across London and the South East. Our area takes in places right across West Sussex, large and small. We also survey roofs in Guildford.
Every address in RH14 is within our area for electronic leak detection. If you need electronic leak detection at a property on Pigbush Lane and Oakhurst Lane or anywhere close by, we can help. Neighbouring places we cover for electronic leak detection include Alfold (1 mile north), Loxwood (1 mile south), Ifold (2 miles south-west), Plaistow (2 miles south-west) and Durfold Wood (3 miles west). Larger places within reach include Crawley (14 miles east), Horsham (9 miles east), Broadfield (14 miles east), Storrington (12 miles south), Billingshurst (6 miles south-east) and Bewbush (13 miles east).
What’s near Alfold Bars
Typical jobs here are in homes near The Crown pub and Fir Tree Copse. For a walk, there’s Shillinglee Lake.
Prices for electronic leak detection in Alfold Bars
We confirm the price for the job before booking. This is what makes a difference:
- How many separate roofs there are, like extensions, dormers and garages
- Whether thermal imaging or a drone is needed
- Whether it is a home or a commercial building
- Roof area
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You will know the figure before booking.
What to let us know when you get in touch
When you call or email, these details help:
- Any stains, drips or damp patches you’ve seen indoors
- What’s prompted the survey
- Your postcode, so we can check access and travel
- Photos of the roof, taken safely from ground level or a window
To book a survey, phone 07833 053749 or email us with the address and what you’d like to know about the roof. You will know the price before anything is booked.
Tips from our surveys
A little preparation and a few simple habits help. Our tips:
- Clear flat roof outlets regularly
- Keep a note of leaks after rain
- Find the breach before more patching
- Stay off the flat roof unless needed
Keep the report with the roof’s records. It shows the condition of the membrane on that date.
Check contractors protect the waterproofing when they work up there. Check the roof after they’ve finished.
Common questions in Alfold Bars
Do you cover smaller places like Alfold Bars?
Yes. Alfold Bars is within the area we cover, which takes in towns, villages and rural addresses. Our area covers London and South East England. Just mention lanes, gates or anything else about the route when you book.
Does a conservation area affect roof work in Alfold Bars?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
What’s in the report?
You get our findings in writing, part by part, with photos, finishing with recommendations. The most urgent items are made clear.
Can every flat roof be tested?
It depends on the membrane and the build-up. Let us know what you know about the roof and we’ll check whether ELD will work.
What do I do with the report?
The report comes by email, and you decide the next step: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
Which days do you carry out surveys?
Visits run seven days a week in the daytime. Let us know your preferred days as you book.
Can you give me structural calculations?
No. Our survey isn’t a structural engineer’s report, and it does not include calculations. If we see signs that need an engineer’s opinion, we will recommend one.
Landlord and commercial surveys in Alfold Bars
If you own several properties, surveys can be booked for more than one address. To discuss a number of properties, call 07833 053749 or drop us an email.
Buyers’ agents can book surveys on behalf of their clients. The report is emailed, so it can go straight to your client, photographs included.
What happens on the day
Once we’ve finished looking, we write up our findings as a written report with photos. As for time on site, it usually takes as long as needed for the roof’s area and construction, and we’ll give you a guide when quoting. Cottages and farmhouses around Alfold Bars often have roofs at several levels, with lean-tos and outbuildings attached. We work round each section in turn, from the safest viewpoints, and anything we can’t see is noted.
- 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.
Before the survey
- Unlock side gates and any roof access doors
- Agree roof access with the managing agent if it is shared
- Have any paperwork from past roof work to hand
Arrange a survey
To get a price for electronic leak detection in Alfold Bars, call 07833 053749 or send us an email. A few details about the property and the roof help us price the survey accurately.