Surrey · London and the South East
Electronic Leak Detection in Green Cross
Electronic leak detection across Green Cross, backed by more than 20 years’ experience. You get a clear report with photos.
- Breaches hidden under paving or planting
- Failed seams and laps
- Holes left by work on the roof
Electronic leak detection in Green Cross
We carry out electronic leak detection on flat roofs in Green Cross and across London and South East England. A visit typically takes a length of time set by the roof’s area and construction, which we’ll explain when we quote. We quote electronic leak detection for each roof, as the method and time depend on the roof. You get a photo-illustrated written report. We’re often asked to look into damage from equipment installers and leaks at pipes, outlets or fixings, across single-ply roofs, green roofs and liquid-applied waterproofing.
In a small place like Green Cross, a flat roof can stand in the open, which is hard on edges, upstands and joins in the covering. Older felt roofs, often around 15–20 years in life, show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. Exposed edges are typically the first part of a flat roof to go.
Most points in the report come with a picture, because a photo of a cracked flashing says more than a paragraph. Anything out of sight on the day is listed as such.
- Where
- Green Cross (GU10)
- Region
- Surrey
- Prices
- Quoted for your roof
- Reports
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
Local flat roofs in Green Cross
Handmade clay tiles and tile-hung walls are typical of Surrey’s older houses. A few of Surrey’s oldest buildings have heavy Horsham stone slab roofs. Next to the main roofs there is typically a flat roof somewhere, whether on an extension, a garage or a commercial unit. Older buildings may be listed or sit in a conservation area. To find out, check Historic England’s list and ask the council about conservation areas. In either case, a change of roofing material may need consent.
Landlords with a home close to Haslemere station may find that flat roofs on let property tend to be checked only when they fail, which is the costly way round. For an older house near a landmark like St John the Evangelist, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Green Cross is about 5 miles south of Farnham, in Surrey. We survey roofs in Green Cross and the rest of Surrey. Green Cross is one of the places in Surrey we cover for electronic leak detection. Our Guildford page covers surveys nearby.
We survey roofs across GU10 for electronic leak detection and the streets around it. We also cover Churt (1 mile west), Whitmoor Vale (1 mile south-west), Beacon Hill (1 mile south-east), Barford (1 mile south-west) and Crosswater (1 mile north-west). Within a short drive, we also cover Guildford (11 miles north-east), Woking (15 miles north-east), Camberley (14 miles north), Farnham (5 miles north), Frimley (12 miles north) and Haslemere (4 miles south-east).
What’s near Green Cross
We work in homes and buildings around Crossways Inn and The Flashes, among other places. The nearest railway station is Haslemere station, roughly 3.7 miles south-east of the centre. Nearby you will also find Haslemere and District Hospital (3.8 miles south-east). Not far away are Gibbet Hill and Farnham Heath.
Do you need electronic leak detection in Green Cross?
Repeated leaks after repairs suggest the real breach hasn’t been found. ELD can locate the breach more precisely.
Typical things we’re asked to look at include:
- Punctures from foot traffic or tools
- Repairs that haven’t stopped the leak
- Holes around roof penetrations
- Stains far from any visible defect
Anyone responsible for a site like St John's CofE Aided Infant School will know that large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Before you book any roof surveyor
- Which parts of the roof they’ll actually see
- What happens after the report arrives
- Will the report include photos?
- What insurance they carry
Tips that help
You do not need to be a roofer to help. What helps most:
- Find the breach before more patching
- Act on new leaks promptly
- Ask contractors to protect the membrane
- Note where leaks show inside and when
Where the evidence points to walls, copings or rooflights, we’ll note it, so other causes can be checked.
Keep people off the flat roof unless they need to be there. Many breaches come from foot traffic.
Honest limits
A survey is a careful look at the flat roof membrane, but it cannot do everything. The main limits are:
- Sections we can’t safely access
- Repairing the breaches (that is for your roofer)
- Some conductive membranes
If in doubt, ring 07833 053749 or send us an email and we’ll point you to the right survey. What our survey covers.
Roof types and parts we check
- Commercial flat roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Single-ply roofs
- Green roofs
- Flat roof membranes
How it works
Every roof is different, but as a rough guide the survey takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. You’re welcome to ask questions while we are there. Somewhere like Green Cross needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. The roof is looked at from the ground, from windows, from the loft where there’s safe access and from the roof where it’s safe.
- 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
- Note where any stains or damp appear
- Keep pets inside or away from the areas we are looking at
- Have any paperwork from past roof work to hand
Booking a survey
Photos help, if you have them. Take them safely from the ground or a window. To send them or to book, call 07833 053749 or email us.
Read more
Common questions in Green Cross
Is my home in Green Cross listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. Both listing and conservation areas can limit changes of roofing material.
Is Green Cross in the area you cover?
Yes, Green Cross is within the area we cover. We survey roofs across London and the South East. You can ring 07833 053749 or send us an email with the address and a few details.
What will the report tell me?
You get our findings in writing, part by part, with photos, and ends with what we recommend. The most urgent items are made clear.
Do you use drones?
Yes, where it is applicable. Whether we can fly on the day depends on the weather and the airspace rules, including flight restriction zones near airports. We are a CAA-registered drone operator.
How long have you been surveying roofs?
Over 20 years and more than 5,000 surveys.
Does the weather affect the survey?
It depends on the weather and the survey. In high wind or heavy rain, a drone can’t fly and access may not be safe, and we’d agree another day.
What’s the best way to book?
It’s easiest to phone 07833 053749 or email us. Give us the address and a few details about the roof, and we will take it from there. We survey on weekdays and at weekends.
Towns and villages near Green Cross
More services for Green Cross
Prices for electronic leak detection in Green Cross
Prices always include VAT. What changes the price is:
- Any need for thermal images or a drone flight
- Roof area
- How tall the building is and how easy the roof is to see
- The type of building, from a house to a block or an office
Bigger, taller and commercial roofs take more time to survey, so the price reflects that. The price is confirmed before booking.
Getting in touch
If you can, have these to hand when you get in touch:
- How the loft is reached, if there is one
- Any marks or damp showing indoors
- The style of property, from a terrace to a block
- Why you want a survey: buying, a leak, a storm or new work
Booking is simple: just phone 07833 053749 or use the contact form and give us a few details about the property and we’ll recommend the right survey. We confirm the price before anything is booked.
What we look for on each type of roof
Bituminous membranes
Older felt roofs often have seams and patches that can leak. We test where the roof suits it.
Inverted and paved roofs
We’ll tell you if your inverted or paved roof is not suitable.