Hertfordshire · London and the South East
Electronic leak detection in Radlett, Hertfordshire
Find out what’s going on with the flat roof membrane before you decide what to do next. Electronic leak detection in Radlett.
- Leaks that return after repairs
- Leaks at pipes, outlets or fixings
- Stains far from any visible defect
Electronic leak detection around Radlett
High Elms Manor, about 3.3 miles west, is one of the historic houses in the wider area around Radlett. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
If you look after a building such as St John's Church of England Infant and Nursery School, 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 Radlett station, a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Radlett is about 3 miles north-west of Borehamwood, in Hertfordshire. Roofs in Radlett get the same thorough look as anywhere else in Hertfordshire. We cover towns and villages across Hertfordshire, large and small. There is also a page for London.
Electronic leak detection in WD7 work the same way as everywhere else we cover. Whether your property is on Upper Station Road, Station Road and Barn Close or a nearby road, we can survey it. Radlett is on the B462 and A5183, which makes it straightforward to reach. Neighbouring places we cover for electronic leak detection include Kemprow (1 mile west), Round Bush (1 mile south-west), Letchmore Heath (1 mile south-west), Aldenham (2 miles south-west) and Patchetts Green (2 miles south-west). Within a short drive, we also cover Watford (4 miles south-west), Hemel Hempstead (8 miles north-west), St Albans (5 miles north), Welwyn Garden City (10 miles north-east), Harpenden (9 miles north) and Hoddesdon (14 miles east).
Near you in Radlett
Locally, jobs take us to homes and businesses close to The Cat And Fiddle Public House and the streets around them. Radlett has its own railway station: Radlett station. Nearby you’ll also find Radlett and District Museum (within half a mile south-east) and Harlequin Centre (3.7 miles south-west). Not far away are Verulamium Lake and Broad Colney Lakes.
About our electronic leak detection in Radlett
ELD finds breaches in the membrane, not every cause of water getting in. Leaks from walls, copings, rooflights or pipes need other checks. We’ll tell you if we think the leak is coming from somewhere else. The test shows breaches in the membrane, not water coming through masonry or around frames. Our report keeps that distinction clear. You’ll also know what to check next. Common reasons to book are water coming in under a flat roof and punctures from foot traffic or tools, on flat roof membranes, green roofs and single-ply roofs.
Around Radlett, many homes have a garden room, garage or outbuilding with a flat roof. They’re easy to forget, but water through a garage roof can spoil whatever is stored inside. It’s worth mentioning them when you book, so the visit can include them. Smaller roofs use the same coverings as bigger ones, from felt to rubber and GRP, and age in the same way.
After the visit, you get a written report with photos, emailed to you. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Location
- Radlett (WD7)
- Region
- Hertfordshire
- Prices
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Survey days
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Towns and villages near Radlett
Other services in Radlett
How the survey works
Every roof is different; as a rough guide, the survey takes as long as needed for the membrane area and the build-up, which we’ll explain when we quote. If you have questions on the day, just ask. With a bit of garden around a house, as there frequently is around Radlett, the roof can be viewed from several angles. Mention any side of the property we can’t get to. The loft, where there’s safe access, completes the picture.
- You let us know about the roof and where water is showing.
- The roof is assessed for suitability first.
- We choose a low-voltage or high-voltage method to match the roof.
- The membrane is tested and breaches are found.
- You get a report with photos of each breach.
How to prepare
- Clear the way to the loft hatch
- Find any records of previous roof work
- Have keys ready for side gates, garages or roof access doors
How to book
If you are buying, it helps to book soon after your offer is accepted, so you have the findings in time to act on them before you exchange. For any other survey, just ring 07833 053749 or email us when you are ready.
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What this survey cannot tell you
We only report everything that’s safely in view on the day, so some things are outside what a survey can do:
- Roofs whose membrane or build-up isn’t suitable
- Fixing the holes we find
- Leaks from plumbing or windows
Not sure which survey suits your roof? You can call 07833 053749 or email us and we will tell you before booking. What our survey covers.
What we look at
- Green roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Flat roof membranes
- Single-ply roofs
- Commercial flat roofs
Rented homes, blocks and businesses
Businesses and commercial landlords can book us too, including offices, shops and units. Larger roofs take longer.
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan.
Common roof problems in Radlett
New membranes can have defects from installation. ELD on a new roof can show holes before they cause leaks.
These are some of the problems a survey can pick up:
- Punctures from foot traffic or tools
- Stains far from any visible defect
- New roofs to check before paving or planting
- Leaking laps in the waterproofing
If you run a business near Harlequin Centre, a flat roof over a business is out of sight and out of mind until it leaks.
Before booking any roof surveyor
- Whether the roof space is looked at, where there is one
- Their insurance cover
- Whether the price includes VAT
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
Questions from Radlett
Is my home in Radlett listed or in a conservation area?
The council and Historic England’s list are the places to check. It’s worth checking before planning roof work, as both can affect what’s allowed.
Will you come out to Radlett?
Yes, we do. We work right across London and South East England, and smaller places are part of that. Longer journeys are simply planned in advance.
Does the weather affect the survey?
Light rain is normally fine; heavy rain and wind are different. In strong wind or heavy rain, a drone cannot fly and access may not be safe, so we’d move the date with you.
Do I have to be there for the survey?
Not always. An outside-only look can be arranged beforehand, but the loft and any rooms with damp need someone to let us in.
Do you use drones?
Yes, where it’s applicable. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and every flight depends on the airspace and the weather.
When does the report arrive?
The Premium Survey report comes the same day, the Standard within 24–48 hours and the Basic within 48 hours. All of them come by email, ready to forward.
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.
Prices for electronic leak detection in Radlett
Every roof is different, so prices are confirmed before booking. This is what makes a difference:
- How tall the building is and how easy the roof is to see
- Whether thermal imaging or a drone is needed
- The number of roofs, including extensions and garages
- Commercial roofs and larger buildings
The cost of a survey depends on the roof: 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.
Booking your survey
Getting the details right at the start saves time. It is useful to include:
- Why you want a survey: buying, a leak, a storm or new work
- Any deadline, such as an exchange date
- Any photos you have, taken from ground level or a window
- Where the property is, with the postcode
You can call us seven days a week. To book or ask a question, call 07833 053749 or send us an email.
Checking the roof from the ground
It’s useful to keep a record: dates of leaks, photos from ground level and any work done on the roof. Send it with your enquiry and it will help the survey.
A lot can be seen from ground level. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Never climb onto the roof to look.