Roof surveys across London and the South East 07833 053749info@independentroofsurvey.co.uk

West Sussex · London and the South East

Electronic leak detection in Holbrook, West Sussex

Independent electronic leak detection in Holbrook. We have completed more than 5,000 surveys across London and South East England.

  • Repairs that haven’t stopped the leak
  • Leaks showing away from the breach
  • New membranes needing a check before handover

Independent electronic leak detection in Holbrook

Common roof problems in Holbrook

Repeated leaks after repairs suggest the real breach hasn’t been found. Electronic testing helps pinpoint it.

We’re frequently asked to look at:

  • Failed seams and laps
  • Leaks that return after repairs
  • Leaks under green or ballasted roofs
  • Stains far from any visible defect

If you own one of the older houses in the streets near St. Mark's Church, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.

Before you book anyone

  • Whether any drone flown is registered with the CAA
  • What the survey will not cover
  • Whether the inside of the roof is included
  • Their report turnaround times

What to expect from a roof survey

Electronic leak detection in Holbrook

Water can travel under a flat roof membrane before it shows inside. That makes leaks hard to trace by eye. Electronic leak detection tests the membrane itself and locates the breach. We test and report and leave the repair to your roofer. On a suitable roof, it takes the guesswork out of finding the hole. The results then follow in a written report with photos. If you’re worried about leaks through a flat roof with no obvious cause and patched roofs that still leak, we can find out what’s behind it.

In a village or hamlet like Holbrook, flat roofs are usually on extensions, garages, outbuildings or barn conversions. The checks are the same as anywhere: outlets, upstands, edges and the covering itself. We simply plan the journey and access ahead of time. If there are outbuildings or garages with flat roofs, mention them when you book.

Nothing in the report is left vague: if work is needed, the report says so clearly, and where it can wait, that is said too.

Location
Holbrook (RH12)
Region
West Sussex
Price
Quoted for your roof
Reports
A written report with photos, by email
When we survey
Monday to Sunday, daytime
Insured
PI and public liability insurance
Phone
07833 053749
Updated
27 October 2026
Illustration of a flat roof membrane with a target marking a leak point and a small monitor

Local flat roofs in Holbrook

In Sussex, older roofs are often handmade clay tile, frequently with tile-hanging on the walls below. Some old buildings in Sussex have Horsham stone slab roofs. Next to the main roofs there is normally a flat roof somewhere, whether on an extension, a garage or a commercial unit. Before planning roof work on an older home, find out whether it is listed or in a conservation area. Listed building consent covers changes to a listed building’s special interest, and an Article 4 direction can bring extra controls in a conservation area.

If you own a rental within reach of Warnham station, flat roofs on let property tend to be checked only when they fail, which is the costly way round. If you look after a building such as Holbrook Primary School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.

Holbrook is about 2 miles north of Horsham, in West Sussex. We cover Holbrook and the rest of West Sussex. Our area takes in places right across West Sussex.

Electronic leak detection in RH12 work the same way as everywhere else we cover. Close by, we survey roofs in Warnham (2 miles west), Horsham (2 miles south), Broadbridge Heath (3 miles south-west), Tower Hill (3 miles south-west) and Rowhook (4 miles west). Further out, we also cover Crawley (5 miles east), Haywards Heath (11 miles south-east), Burgess Hill (12 miles south-east), East Grinstead (13 miles east), Broadfield (4 miles east) and Storrington (13 miles south-west).

Around Holbrook

In Holbrook, that means homes and buildings near Greenway Academy and Warnham Park. The closest station to Holbrook is Warnham station, roughly 0.8 miles west. Well-known places in the area include Horsham Hospital (1.7 miles south-west). The countryside around Holbrook includes Warnham LNR and Vann Lake.

Map of Holbrook © OpenStreetMap contributors

Why it’s worth a survey now in Holbrook

Water trapped under a membrane can soak insulation and decking. Locating it early helps limit the damage. 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.

What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.

Why book us in Holbrook

  • Thermal imaging and drone inspection where they help
  • Independent findings on the roof’s condition
  • Every finding written up with photos
  • Over 20 years’ experience

Read our cost guide or our case studies.

What this survey can’t tell you

Our survey is not a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. It also has these limits:

  • Sections we can’t safely access
  • Water entering through details rather than the membrane
  • How wet the insulation is

Not sure which survey suits your roof? You can ring 07833 053749 or send us an email and we’ll tell you before booking. The full list of what we check.

Roofs we survey in Holbrook

  • Commercial flat roofs
  • Flat roof membranes
  • Roof terraces and balconies
  • Green roofs
  • Single-ply roofs
  • Liquid-applied waterproofing

Your questions about electronic leak detection in Holbrook

Do you cover Holbrook?

We do. The survey and report are the same in Holbrook as anywhere else, and visits run on weekdays and weekends.

Is my home in Holbrook listed or in a conservation area?

We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case.

Can you find leaks on a covered flat roof?

Sometimes. It depends on the build-up and the layers above the membrane and parts may need to be lifted. We’ll discuss it before we quote.

How is ELD priced?

We quote for each roof individually. Tell us about the roof and where it leaks, and call 07833 053749 or drop us an email for a quote.

Do you survey on Saturdays and Sundays?

We survey seven days a week: Monday to Friday, Saturdays and Sundays. Just let us know the days that suit you.

Do you test for asbestos?

No. Asbestos surveys and sampling aren’t something we do. Where a material might contain it, such as old cement sheets on a building from before 2000, the report flags it.

Do I need to be at home?

Not always. If we only need the outside, we can agree that beforehand, but anything inside needs someone there to give access.

For landlords and managing agents

We survey roofs for landlords and letting agents as well as householders. A photo-illustrated written report gives you a clear record of the flat roof membrane, which helps you plan work between tenancies.

If you own several properties, you can book surveys for several addresses. To discuss a number of properties, call 07833 053749 or email us.

Tips that help

Here are a few things we’d tell any owner, before and after a survey:

  • Let us know about the membrane and build-up if you know it
  • Act on new leaks promptly
  • Stay off the flat roof unless needed
  • Don’t let outlets block

Where the evidence points to walls, copings or rooflights, we will note it, so other causes can be checked.

Keep outlets and gutters on flat roofs clear. Water that sits on the roof finds breaches faster.

How the survey works

We don’t take risks to get a closer look. We inspect what can safely be seen, and anything we cannot see is noted in the report. Most visits take a time that depends on the roof’s area and construction, which we set out in the quote. Cottages and farmhouses around Holbrook often have roofs at several levels, with lean-tos and outbuildings attached. Each part is looked at from wherever it can safely be seen.

  1. We ask about the roof, its age, its membrane and where leaks appear inside.
  2. We confirm whether the roof is suitable for electronic testing.
  3. The testing method is chosen to suit the membrane and build-up.
  4. We test the membrane and find where current is passing through it.
  5. We send a report with photos of each breach so your roofer can repair it.

How to prepare

  • Have any paperwork from past roof work to hand
  • If you are buying, let the agent know when we are coming
  • Show us where any leaks or stains appear

Book a survey

Every survey is priced before it is booked, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. For a price for your roof, call 07833 053749 or use the contact form.

Book your survey

Related advice

20+ yearsRoof survey experience
5,000+ surveys98% customer satisfaction
Drones and thermal imagingCAA-registered drone operator
Fully insuredProfessional indemnity and public liability
Reports from £150Prices include VAT