West Sussex · London and the South East
Electronic leak detection in Cross Gate, West Sussex
We take a careful look at the flat roof membrane at your property in Cross Gate, with photos and a written report.
- Damage from equipment installers
- Leaks through a covered membrane
- Waterproofing to test before it’s covered
How electronic leak detection works in Cross Gate
Roofs covered with paving, ballast or planting need more thought. What sits on the membrane can affect which method will work, and some may need lifting. We’ll discuss it with you when we quote. Drawings or details of the roof’s layers are useful, as they show what lies beneath the surface. We’ll tell you if the roof cannot be tested. We survey single-ply roofs, commercial flat roofs and liquid-applied waterproofing, and people most often book us about waterproofing to test before it’s covered and leaks through a flat roof with no obvious cause.
Older buildings in small places like Cross Gate may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. If you are planning work, check with the council first. Knowing the roof’s condition is the starting point. Changes that affect a listed building’s special interest need listed building consent.
Findings are set out part by part, from the main slopes down to the gutters and outlets, with a note and a photo for each point. You will see the good as well as the bad.
- Place
- Cross Gate (BN18)
- Region
- West Sussex
- Price
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Appointments
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Why get it checked now?
Chasing a leak again and again is frustrating. A clear record of where the breaches are helps break that cycle. Outbuildings and barns around Cross Gate are easy to forget, but a failed roof there can spoil what’s stored inside. It is worth including them in a survey before a winter does the damage.
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. You’ll know the price for the job before you book.
Why us?
- More than 20 years surveying roofs
- Drones and thermal imaging where it applies
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- Insured for professional indemnity and public liability
Take a look at what a roof survey costs or what we found on two real jobs.
Different roofs, different checks
Single-ply membranes
Many offices and units have single-ply roofs. Laps and fixings are where holes often appear.
Inverted and paved roofs
On inverted roofs, insulation sits above the membrane, which affects testing.
When to book a survey in Cross Gate
Other trades on the roof can puncture the waterproofing. Engineers fitting equipment, solar panels or aerials may leave damage behind.
These are some of the problems a survey can pick up:
- A flat roof leak that cannot be traced
- Leaks that return after repairs
- Leaks under green or ballasted roofs
- Punctures from foot traffic or tools
Take an older house close to The Parish Church of St Michael and All Angels: the flat roofs on later extensions tend to wear out long before the main roof.
What to check before booking
- What the report includes, and whether it has photographs
- Whether the loft space is looked at, where there is one
- Is VAT included in the price?
- What’s outside the scope of the survey
Landlords, agents and block managers in Cross Gate
With a portfolio of properties, you can book surveys for several addresses. To discuss a number of properties, call 07833 053749 or email us with the addresses.
Buyers’ agents can book surveys on behalf of their clients. The report is emailed, so it can go straight to your client, photos included.
Your questions about electronic leak detection in Cross Gate
How do I find out if my home in Cross Gate is listed?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it’s in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Will you come out to Cross Gate?
Yes, Cross Gate is covered. We survey roofs across London and South East England, and smaller places are part of that. The journey is planned ahead, so it is useful to know about access.
Do you survey roofs on blocks of flats?
Yes. Shared roofs just need a little more planning. Mention it when you contact us and we’ll plan the survey around it.
Can you inspect my roof with a drone?
Yes, where it is applicable. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and every flight depends on the airspace and the weather.
Do you need to get into the loft?
If it is needed and safe to reach, yes. We look for staining, damp, daylight and signs of movement.
Does ELD include fixing the breach?
No. We test the membrane and report. The report shows where each breach is so your roofer can fix them.
How experienced are you?
More than 5,000 surveys over 20+ years, across London and South East England.
What happens on the day
We work from the outside in: first the slopes, edges and gutters from every safe viewpoint, then the roof space where it can be reached. In total, it takes 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 Cross Gate, access is frequently the only tricky part. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Visits can be on weekdays, Saturdays or Sundays.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- A report with photos shows where each breach is.
Before we arrive
- Make sure the loft hatch can be reached
- Leave side gates unlocked
- If it is not your property yet, arrange access through the agent
Book a survey
You can call us seven days a week. For a price or to book, phone 07833 053749 or drop us an email.
Advice
Flat and commercial roofs around Cross Gate
In Sussex, older roofs are often handmade clay tile, frequently with tile-hanging on the walls below. 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 like Parham House, about 1.1 miles east, show how far back building in the area around Cross Gate 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 Amberley station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak. For site and facilities teams at buildings like Amberley CofE Primary School, schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks.
Cross Gate is about 7 miles north of Littlehampton, in West Sussex. We visit Cross Gate as part of our work across West Sussex. Cross Gate is one of the places in West Sussex where we work. Our Brighton page covers surveys nearby.
We work across the BN18 postcode area for electronic leak detection. We also cover Rackham (1 mile east), Amberley (1 mile south-west), Bury (2 miles west), Coldwaltham (2 miles north-west) and Watersfield (2 miles north-west). Further out, we also cover Horsham (14 miles north-east), Worthing (8 miles south-east), Bognor Regis (11 miles south-west), Chichester (12 miles south-west), Littlehampton (7 miles south) and Shoreham-by-Sea (12 miles south-east).
Local landmarks in Cross Gate
Typical jobs here are in homes near Parham Park. For rail, the closest station is Amberley station, roughly 1.5 miles south-west of the centre. Nearby you’ll also find Amberley Museum (1.4 miles south-west) and Amberley Castle (1 mile west). For a walk, there’s Bignor Hill and Amberley Wild Brooks.
What this survey cannot tell you
It’s a careful look at the flat roof membrane, not the whole story. The main limits are:
- Leaks from plumbing or windows
- Some conductive membranes
- Areas we can’t reach or that can’t be tested
If you’re not sure which survey you need, phone 07833 053749 or use the contact form and we will give you a straight answer. The full list of what we check.
Roof types and parts we check
- Single-ply roofs
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs
- Green roofs
- Liquid-applied waterproofing