Surrey · London and the South East
North Holmwood Electronic Leak Detection
Not sure what state the flat roof membrane is in? You can book electronic leak detection in North Holmwood and across Surrey.
- Leaks through a flat roof with no obvious cause
- Patched roofs that still leak
- New membranes needing a check before handover
What happens if roof problems are left?
Some breaches are too small to see. ELD picks up breaches a visual check might miss where the roof suits it. Tradespeople may need to travel further to a smaller place like North Holmwood, so it helps to plan roof work rather than call someone out in a hurry. A survey gives you that notice.
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 us?
- Independent findings on the roof’s condition
- CAA-registered drone operator (Flyer ID and Operator ID)
- More than 5,000 surveys completed
- Drones and thermal imaging where it applies
See our cost guide or two real surveys.
How electronic leak detection works in North Holmwood
There are different ELD methods. Low-voltage testing is normally done with the surface wet, while high-voltage testing needs a dry, exposed membrane. Which one suits depends on the membrane and the layers of the roof and we explain which we’ll use. We’ll say if your roof doesn’t suit either method before any testing starts. If you’ve noticed leaks through a covered membrane and gaps at membrane joints, we can find out what’s behind it.
Around a smaller place like North Holmwood, flat roofs typically cover extensions, garages and dormers. They’re small, but a leak over a kitchen extension can do a lot of harm. Knowing the covering and how it was laid tells you what to expect from it, from felt and asphalt to EPDM rubber and GRP. From an upstairs window, look for standing water, splits and edges coming away.
Every survey ends with a written report, with photographs, sent by email. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Place
- North Holmwood (RH5, RH4)
- Wider area
- Surrey
- Prices
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- When we survey
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Page updated
- 27 October 2026
North Holmwood questions
How do I find out if my home in North Holmwood is listed?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you’re planning to re-roof in a different material.
Do you cover smaller places like North Holmwood?
Yes, North Holmwood is on our map. A small place gets exactly the same survey as a big one.
When does the report arrive?
Report times are set by the package. Basic is within 48 hours, Standard is 24–48 hours and Premium is the same day. If you have a deadline, such as an exchange date, let us know when booking.
Can every flat roof be tested?
That depends on the roof’s membrane and layers. Let us know what you know about the roof and we’ll check whether ELD will work.
How does ELD work?
A sound membrane blocks the test current, so wherever there is a hole, it passes through. That is how we locate breaches you cannot see.
Do you use low-voltage or high-voltage testing?
We choose the method that suits the roof. You’ll know which method we plan to use before we start.
Do you climb onto every roof?
Not unless it’s safe. Most of what we need can be seen from safe viewpoints, the loft and, where applicable, a drone.
Useful tips for North Holmwood property owners
A few practical points come up again and again on our surveys. They’re worth knowing whatever the roof:
- Do not let outlets block
- Test new membranes before covering them
- Do not leave water getting in
- Check trades protect the waterproofing
After your roofer repairs the breaches, a retest can confirm them if the build-up allows.
Consider testing a new membrane before it is covered. It’s easier to find holes before more layers are added.
DIY checks: what’s safe
Your own check is a good start, but it is not a survey. From ground level, valleys, flashings and the backs of chimneys are often out of sight, and those are details a survey looks at closely.
A lot can be seen from the ground. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Please don’t climb up for a closer look.
Places near North Holmwood
More services for North Holmwood
Flat roofs in North Holmwood
In Surrey, older roofs are frequently handmade clay tile, with tile-hanging on many upper walls. Some old buildings in Surrey and Sussex have Horsham stone slab roofs. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. There are several hotels within about a mile and a half of North Holmwood. For hotels and other commercial buildings, finding the cause of a flat roof leak quickly keeps rooms in use.
The streets around a church such as Church of St John the Evangelist are often among the oldest in a place, and if your home is one of the older ones nearby, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear. Polesden Lacey lies about 3.8 miles north-west, so building around North Holmwood goes back a long way. Older homes nearby may have later flat-roofed extensions or dormers, often re-covered more than once.
North Holmwood is about 1 mile south of Dorking, in Surrey. We survey roofs in North Holmwood and the surrounding area as part of our work across London and the South East. North Holmwood is one of the towns and villages in Surrey we cover for electronic leak detection. Our Crawley page covers surveys nearby.
Electronic leak detection in RH5 and RH4 work the same way as everywhere else we cover. We cover properties on Howard Road, Horsham Road and Inholms Lane. Neighbouring places we cover for electronic leak detection include Blackbrook (1 mile south-east), Mid Holmwood (1 mile south-west), Dorking (1 mile north), Pixham (2 miles north) and Westcott (2 miles north-west). We also work in nearby towns like Guildford (11 miles west), Woking (13 miles north-west), Epsom (9 miles north), Horley (7 miles east), Redhill (7 miles east) and Ewell (10 miles north).
Local landmarks in North Holmwood
Typical jobs here are in homes near Inholms Clay Pit, The Priory CofE Voluntary Aided School and Royal Oak pub, among other places. The closest station to North Holmwood is Dorking West station, roughly 1.8 miles north-west of the centre. Well-known places in the area include Mesolithic Museum (3.7 miles west) and Headley Court (5.9 miles north). Open spaces near North Holmwood include Reigate Heath and Box Hill.
Landlords, agents and block managers in North Holmwood
Surveys can also be booked by buyers’ agents acting for a client. Reports are emailed, so they’re easy to pass on.
Landlords and letting agents in North Holmwood book surveys as well as homeowners. The report gives you a dated record of the flat roof membrane, with photographs, useful for planning maintenance.
What we’re asked to look at in North Holmwood
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
These are some of the problems a survey can pick up:
- Holes around roof penetrations
- Leaks through a flat roof with no obvious cause
- Leaks that return after repairs
- New roofs to check before paving or planting
For site and facilities teams at buildings such as St John's Church of England Primary School, schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks.
What to check before booking
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- How long they’ve been surveying roofs
- Whether the inside of the roof is included
- Whether they hold professional indemnity and public liability insurance
The survey, step by step
We don’t take risks to get a closer look. Everything that can be seen safely is inspected, and anything we can’t see is noted in the report. Most visits take a length of time set by the membrane area and the build-up, which we’ll explain when we quote. A visit to North Holmwood is planned like any other: the time, the access and where to park are agreed in advance. Visits can be on weekdays, Saturdays or Sundays. Tell us about any garages, outbuildings or extensions you want included.
- First, we confirm which roof areas are included.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- We mark the breach locations in our records.
- The report is sent for your roofer to act on.
Before we arrive
- Make a note of anything you’d like us to look at
- Keep pets in another room
- Gather any invoices or paperwork from past roof work
How to book
Surveys can be booked for weekdays, Saturdays or Sundays. To find a date that works for you, call 07833 053749 or send us an email with the address and the days you’d prefer.