Surrey · London and the South East
Electronic Leak Detection in Crosswater
Electronic leak detection to pinpoint holes in flat roof membranes across Crosswater, using drones and thermal imaging where it applies. Call or email for a price.
- Damp inside with no sign on the roof
- Leaks through a flat roof with no obvious cause
- Patched roofs that still leak
When you need someone else
We only report what can be seen safely on the day, so some things are outside what a survey can do:
- The extent of water in the insulation
- Sections we cannot safely access
- Roofs whose membrane or build-up is not suitable
Not sure which survey suits your roof? You can ring 07833 053749 or drop us an email and we’ll tell you. What a survey covers and does not.
What we look at
- Flat roof membranes
- Liquid-applied waterproofing
- Single-ply roofs
- Roof terraces and balconies
- Commercial flat roofs
- Green roofs
About our electronic leak detection in Crosswater
Electronic testing locates holes in the waterproofing, not every cause of water getting in. Leaks from walls, copings, rooflights or pipes need other checks. If the evidence points elsewhere, we’ll say so. It will not show water getting in through brickwork or around frames. The report makes clear what was and wasn’t tested. We will point you to the likely next step. We survey flat roof membranes, liquid-applied waterproofing and single-ply roofs, and people most often book us about a flat roof leak that can’t be traced and leaking laps in the waterproofing.
Flat roofs on exposed homes in small places like Crosswater take more wind and rain, so edges, upstands and laps take a beating. Older felt roofs, often 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 typically the first part of a flat roof to go.
It isn’t only a list of defects. For each finding, it explains what it is, why it matters and what we’d recommend, so you can decide what to do next.
- Where
- Crosswater (GU10)
- Region
- Surrey
- Prices
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
Nearby places to Crosswater
What else we do in Crosswater
Different roofs, different checks
Inverted and paved roofs
On inverted roofs, insulation sits above the membrane, which affects testing.
Green and ballasted roofs
Roofs with planting or ballast hide the membrane. Some methods can work through these layers, depending on the build-up.
Questions from Crosswater
Do you cover Crosswater?
Yes. Our area covers London and the South East, and Crosswater is part of that. Just phone 07833 053749 or drop us an email and let us know about the property.
Do you cover smaller places like Crosswater?
Yes, we do. Our area covers London and South East England, from towns to the smallest villages. Longer journeys are simply planned beforehand.
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.
How much time does ELD need?
It depends on the size of the roof and its build-up. We will give you an idea when we quote.
How is ELD priced?
We quote electronic leak detection for each roof, as the method and time depend on the roof. Size, build-up and access all affect the price. To get a quote, phone 07833 053749 or use the contact form.
When does the report arrive?
It depends on the package: the Basic Survey report arrives within 48 hours, the Standard Survey in 24 to 48 hours and the Premium Survey the same day. Reports are sent by email.
What insurance do you have?
Every survey is covered by professional indemnity and public liability insurance.
Tips that help
Some practical points come up on survey after survey. They’re worth knowing whatever the roof:
- Record dates and spots where water appears
- Avoid repeated repairs without finding the cause
- Don’t let outlets block
- Get leaks traced quickly
Questions about the results are welcome. We can talk you through the findings.
Consider testing a new membrane before it’s covered. It’s easier to find holes before more layers are added.
Flat and commercial roofs around Crosswater
Many older homes in Surrey have handmade clay tiles and tile-hung upper walls. Horsham stone slab roofs survive on some old buildings in Surrey. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops. The wider area around Crosswater has a long history of building, with Farnham Castle about 4.9 miles north. Older homes in the wider area often have features worth a closer look, such as lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area.
Anyone responsible for a site like St John's CofE Aided Infant School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season. If you let a flat or house near Farnham station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. For an older house near a landmark such as St John the Evangelist, the joins between later flat roofs and the old walls are where problems usually start.
Crosswater is about 4 miles south of Farnham, in Surrey. In Crosswater, as across Surrey, every roof gets the same careful survey. Across Surrey, we cover Crosswater and the places around it. Guildford is in our area too.
Postcode districts we cover here for electronic leak detection: GU10. Close by, we survey roofs in Churt (1 mile south), Green Cross (1 mile south-east), Frensham (1 mile north-west), Barford (1 mile south) and Rushmoor (1 mile north-east). Further out, we also cover Guildford (11 miles north-east), Woking (15 miles north-east), Camberley (13 miles north), Farnham (4 miles north), Frimley (12 miles north) and Haslemere (5 miles south-east).
Around Crosswater
In Crosswater, that means homes and buildings near Crossways Inn and The Flashes and the streets around them. The nearest railway station is Farnham station, roughly 4.3 miles north. Well-known places in the area include Farnham Castle (4.9 miles north) and Chase Community Hospital (4.7 miles south-west). Not far away are Gibbet Hill and Upper Lake.
What affects the price in Crosswater
We confirm the exact price before booking. This is what makes a difference:
- The roof’s overall size
- The type of building, from a house to a block or an office
- If the survey needs thermal imaging or a drone
- The number of roofs, including extensions and garages
To find out what your survey will cost, call 07833 053749 or email us with the address and some details. The price is agreed before a date is set.
Booking your survey
You do not need to know any roofing terms. It is enough to let us know:
- Whether there’s a loft hatch, a shared roof or tricky access
- Any deadline, such as an exchange date
- The reason for the survey, such as buying, a leak or storm damage
- The address and postcode of the property
To book a survey, ring 07833 053749 or send us an email with the address and what you’d like to know about the roof. We’ll confirm the price before booking.
How the survey works
You don’t need to do much on the day. Show us any stains, drips or problem areas you know about, and we’ll get on with the inspection. The survey itself takes as long as needed for the membrane area and the build-up, which we set out in the quote. Around Crosswater, older homes can have small or awkward roof spaces, so it helps to know whether there’s a loft hatch and how easy it is to reach. Only areas that can be reached safely are inspected.
- We agree the area to be tested.
- 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
- Let us know about parking before the day
- Clear the way to the loft hatch
- Unlock side gates and any roof access doors
Getting a price
Photos help, if you have them. Pictures from the ground or a window are fine. To send them or to book, call 07833 053749 or drop us an email.
Related advice
DIY checks: what’s safe
Look up at the roof after a storm, from the ground: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Do not go up yourself.
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, and look for staining, damp timber or daylight coming through.