Surrey · London and the South East
Rowly Electronic Leak Detection
Electronic leak detection in Rowly, backed by more than 20 years’ experience. Every survey ends with a written report and photos.
- Water coming in under a flat roof
- Punctures from foot traffic or tools
- Damp inside with no sign on the roof
Should I look at the roof myself first?
Inside, the loft is a good place to look, with care. Use a torch and stay on the joists or boards, checking for stains, damp wood or chinks of daylight.
Keep a simple record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry.
Electronic leak detection in Rowly
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It uses a small electrical current which can only get through the membrane at a breach. It can find holes too small to spot by eye, so your roofer can repair them. You get a written report with photos of each breach found. If you are worried about punctures from foot traffic or tools and failed seams and laps, we can find out what’s behind it.
In a small place like Rowly, 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. On an exposed roof, the edges tend to go first.
It is not only a list of defects. It explains what we found, why it matters and what we recommend, so you can plan your next steps.
- Place
- Rowly (GU6, GU5)
- Wider area
- Surrey
- Cost
- Quoted for your roof
- Report
- A written report with photos, by email
- Survey days
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
Rowly: your questions answered
Is Rowly within the area you cover?
Yes, we do. We survey roofs across London and South East England, from towns to the smallest villages. Longer journeys are simply planned ahead of time.
Is my home in Rowly listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case.
Do you survey on Saturdays and Sundays?
Visits run seven days a week in the daytime, which suits people who work during the week. Let us know your preferred days when booking.
Can you give me structural calculations?
No. We are roof surveyors, not structural engineers, and it does not include calculations. We will recommend an engineer if we see signs that call for one.
How much time does ELD need?
It typically takes a length of time set by the size of the roof and how it’s built, which we’ll explain when we quote.
What happens next?
You receive the written report by email, with photos and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Can you inspect my roof with a drone?
Yes, where it is applicable. Flights depend on the weather on the day and airspace rules. We are a CAA-registered drone operator.
Useful tips for Rowly property owners
Over many surveys, some simple habits stand out as worth the effort:
- Don’t keep patching the same spot
- Stay off the flat roof unless needed
- Ask contractors to protect the membrane
- Get leaks traced quickly
Wet insulation may need attention after a leak. Your roofer can advise on that and other checks can help judge it.
Act on leaks quickly. The longer water gets in, the more insulation and decking can be affected.
Prices for electronic leak detection in Rowly
The price reflects the time and kit the roof needs. The main factors are:
- Any need for thermal images or a drone flight
- How complicated the roof is, with its valleys, chimneys and parapets
- The number of roofs, including extensions and garages
- House, block, shop or office
Bigger, taller and commercial roofs take more time to survey, so the price reflects that. The price is confirmed before booking.
What we need to know
To price your survey accurately, we will ask about:
- The type of building and roof, such as pitched or flat
- Dates you’re working to, like exchange
- Any photos you have, taken from ground level or a window
- Your postcode, so we can check access and travel
Photos help, if you have them. Pictures from ground level or a window are fine, and please do not climb up for a closer look. To get started, call 07833 053749 or use the contact form.
How it works
Every roof is different; as a rough guide, the survey takes a time that depends on the membrane area and the build-up, which we’ll explain when we quote. If you have questions on the day, just ask. Older roofs in small places like Rowly can have low, tight loft spaces, so let us know about the loft hatch and any ladder. We only go where it is safe.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- 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
- Keep pets in another room
- Jot down any questions you want answered
- Check the loft hatch can be reached
Getting a price
Buyers should book once an offer has been accepted, so you have the findings in time to act on them before you exchange. For any other survey, just phone 07833 053749 or use the contact form when you are ready.
Read more
What we can’t see
Our findings are based on what we can see safely on the day, so there are some things a survey can’t cover:
- Water entering through details rather than the membrane
- Carrying out the repair work
- The extent of water in the insulation
Not sure which survey suits your roof? You can phone 07833 053749 or send us an email and we will tell you. The full list of what we check.
Roof types and parts we check
- Green roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Single-ply roofs
- Commercial flat roofs
- Flat roof membranes
Electronic leak detection in Rowly: local notes
Older houses across Surrey often have handmade clay tiles, and many have tile-hanging. 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. With Chilworth Manor about 4.3 miles north, Rowly sits in an area with a long building history. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and any change of roofing material on a listed home needs checking with the council first.
For site and facilities teams at buildings like Glebelands School, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Rowly is about 7 miles south-east of Guildford, in Surrey. Rowly is part of the area we cover and the surrounding area across London and South East England. Across Surrey, we cover Rowly and the places around it. Our Guildford page covers surveys nearby.
We work across the GU6 and GU5 postcode area for electronic leak detection. Whether your property is on Guildford Road, Strathavon Close and Smithwood Avenue or anywhere close by, we can help. Neighbouring places we cover for electronic leak detection include Stroud Common (1 mile north), Elmbridge Village (1 mile south), Grafham (2 miles west), Shamley Green (2 miles north-west) and Birtley Green (2 miles north-west). Larger places within reach include Guildford (7 miles north-west), Woking (11 miles north), Camberley (15 miles north-west), Horley (15 miles east), Farnham (13 miles west) and Reigate (14 miles east).
Landmarks near Rowly
Around Rowly, our work takes us to homes and buildings near Cucknell's Wood and the streets around them. For rail, the closest station is Chilworth station, roughly 3.9 miles north. Nearby you will also find Milford Hospital (5.2 miles west). Open spaces near Rowly include Lower Lake and St Martha's Hill and Colyer's Hanger.
Places near Rowly
More services for Rowly
Signs you need electronic leak detection in Rowly
Repeated leaks after repairs suggest the real breach hasn’t been found. ELD can locate the breach more precisely.
Signs worth acting on include:
- Damp inside with no sign on the roof
- Failed seams and laps
- Holes left by work on the roof
- Breaches hidden under paving or planting
If you let a flat or house near Chilworth station, the flat roof over a let home is worth a look before it becomes a tenant complaint.
Before you book any roof surveyor
- What experience they bring
- How they’ll see the roof: from the ground, the loft, the roof or by drone
- Their drone registration, if they fly one
- Which limits apply to the survey