Greater London · London and the South East
Electronic Leak Detection in Rowley Green
Electronic leak detection around Rowley Green, with findings in writing and pictures to back them up. Book a weekday or weekend visit.
- Leaks under green or ballasted roofs
- Gaps at membrane joints
- Holes left by work on the roof
What happens on the day
The aim of the visit is simple: to look at the flat roof membrane as closely as is safe and record what we find. Everything we note and photograph goes into the written report. It usually takes a length of time set by the membrane area and the build-up, which we’ll explain when we quote. In Rowley Green, as in much of London, plenty of properties are flats or terraces without side access, so the back of the roof is frequently seen from upstairs windows, from inside or, where a flight is allowed, from the air. Mention any building rules, key holders or managing agents when you book.
- You tell us about the roof and where water is showing.
- The roof is assessed for suitability first.
- The test method is chosen to suit the roof.
- The membrane is tested and breaches are found.
- You get a report with photos of each breach.
Before we arrive
- Check the loft hatch can be reached
- Have keys ready for side gates, garages or roof access doors
- If it isn’t your property yet, arrange access through the agent
Arrange a survey
Most bookings start with a short call: ring 07833 053749 or email us and we’ll ask a few questions about the roof. You’ll have a price before anything is arranged.
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How electronic leak detection works in Rowley Green
ELD can be carried out in more than one way. Low-voltage methods normally need a wet roof surface and high-voltage methods need the membrane dry and exposed. The right method depends on the membrane and the build-up of the roof, and we will explain our choice. We’ll say if your roof doesn’t suit either method at the outset. If you are worried about stains far from any visible defect and leaks under green or ballasted roofs, a survey will tell you what’s going on.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, each with its own weak points. Which one is on a roof in Rowley Green shapes how it’s checked. Older flat roofs are frequently felt or asphalt, newer ones rubber or GRP.
Every survey ends with a written report, with photos, sent by email. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Place
- Rowley Green (EN5)
- Wider area
- Greater London
- Prices
- Quoted for your roof
- Your report
- A written report with photos, by email
- Survey days
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Landlord and commercial surveys in Rowley Green
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan, putting the urgent items at the top.
We survey roofs for letting agents and landlords as well as householders. The report gives you a dated record of the flat roof membrane, with photographs.
What a survey costs
Not every roof costs the same to survey, and it comes down to:
- How tall the building is and how easy the roof is to see
- If the survey needs thermal imaging or a drone
- The shape of the roof and its details
- Commercial roofs and larger buildings
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. You’ll know the price for your survey before booking.
What to let us know when you contact us
You do not need to know any roofing terms. Just tell us:
- Access details, such as a loft hatch or a shared roof
- The reason for the survey, such as buying, a leak or storm damage
- Your postcode, so we can check access and travel
- Any marks or damp showing indoors
You can call us seven days a week. To book or ask a question, phone 07833 053749 or send us an email.
Leave it or get it looked at?
Repairs in the wrong place leave the leak in place. Testing shows where the membrane is actually breached. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. That’s a good reason to find problems early, while there is time to plan, rather than in a rush after a leak.
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You’ll know the figure before booking.
Why us?
- Drone and thermal imaging surveys available
- Weekday and weekend surveys
- More than 20 years surveying roofs
- Professional indemnity and public liability insurance
See how roof surveys are priced and what we found on two real jobs.
Different roofs, different checks
Green and ballasted roofs
Green roofs and ballasted roofs cover the waterproofing. Some methods can work through these layers but it depends on the layers.
Liquid-applied waterproofing
Liquid waterproofing has no laps but holes and thin areas can occur. Suitability for ELD depends on the system.
What this survey cannot tell you
Some things cannot be seen without opening up the roof, so a survey has limits:
- The extent of water in the insulation
- Leaks from plumbing or windows
- Parts of the roof covered by fixed equipment
If in doubt, call 07833 053749 or use the contact form and we’ll recommend the right survey. The full list of what we check.
Roofs we survey in Rowley Green
- Liquid-applied waterproofing
- Single-ply roofs
- Flat roof membranes
- Commercial flat roofs
- Roof terraces and balconies
- Green roofs
Electronic leak detection in Rowley Green: local notes
Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, often with hipped roofs of clay or concrete tiles. If your home in Rowley Green is one of them, bay roofs, hips and later dormers each have their own details. Next to the main roofs there is normally a flat roof somewhere, whether on an extension, a garage or a commercial unit. Historic houses such as Wyllyotts Manor, about 3.7 miles north-east, show how far back building in the area around Rowley Green goes. 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.
If you run a business near Spires Shopping Centre, outlets and upstands on commercial flat roofs are the places to check before trouble starts. Landlords with a home close to Elstree & Borehamwood station may find that flat roofs over rear additions and dormers in rented property are worth checking between tenancies. If you live in an older home near Holy Cross, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Rowley Green is about 1 mile east of Borehamwood, in Greater London. In Rowley Green, as across Greater London, every roof gets the same careful survey. Our Greater London coverage includes Rowley Green and the places around it. There is also a page for London.
Surveys in EN5 are booked the same way as anywhere else. Other places close to Rowley Green include Arkley (1 mile south-east), Well End (1 mile north-west), Borehamwood (1 mile west), Deacon's Hill (2 miles south-west) and High Barnet (2 miles east). Within a short drive, we also cover London (13 miles south-east), City of Westminster (10 miles south), Marylebone (10 miles south-east), Kensington (11 miles south), St Pancras (10 miles south-east) and Shoreditch (11 miles south-east).
Landmarks near Rowley Green
Locally, jobs take us to homes and businesses close to Barnet Gate Wood and Elstree University Technical College and the streets around them. For rail, the closest station is Elstree & Borehamwood station, roughly 1.4 miles west. A little further out are Hilfield Castle (3.8 miles west) and Barnet General Hospital (1.4 miles east). The countryside around Rowley Green includes Darland's Lake and Rowley Lodge Field.
Rowley Green questions
Do you cover Rowley Green?
Yes, Rowley Green is within the area we cover. We cover the whole of London and South East England. Just phone 07833 053749 or send us an email and let us know about the property.
How do I find out if my home in Rowley Green is listed?
Start with Historic England’s list for listing and your council for conservation areas. It is worth checking before planning roof work, as both can affect what’s allowed.
Will you check the loft?
Where it is relevant to the survey and there’s safe access, yes. Please clear anything stored under the hatch.
How much time does ELD need?
Testing typically takes as long as needed for the size of the roof and how it’s built, and we’ll give you a guide when quoting.
Which days do you carry out surveys?
We carry out surveys on any day of the week. To arrange a date, ring 07833 053749 or send us an email.
Does this replace a RICS home survey?
No. We’re experienced roof surveyors, and our survey covers the roof rather than the whole building. For the rest of the building, a RICS home survey is a separate job.
What’s in the report?
It explains what we saw, what it means and what we’d suggest, with photographs throughout. It also says if any part of the roof couldn’t be seen safely.