Buckinghamshire · London and the South East
Electronic leak detection in Harefield, Buckinghamshire
Electronic leak detection around Harefield, with a written report you can act on. Weekday and weekend visits available.
- Punctures from foot traffic or tools
- New membranes needing a check before handover
- Leaks that return after repairs
When to book a survey in Harefield
Seams are a common weak point in flat roof waterproofing. A gap that is hard to see can let water in for months before it shows.
A survey can pick up problems such as:
- Damp inside with no sign on the roof
- Failed seams and laps
- Leaks under green or ballasted roofs
- Waterproofing to test before it is covered
Landlords with a home close to Denham station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Before booking any roof surveyor
- What insurance they carry
- Whether the loft space is looked at, where there is one
- What’s outside the scope of the survey
- When you will get the report
How electronic leak detection works in Harefield
Water can travel under a flat roof membrane before it shows inside. That makes leaks hard to trace by eye. Electronic leak detection tests the membrane itself and locates the breach. We test and report and leave the repair to your roofer. On a suitable roof, it takes the guesswork out of finding the hole. We then send you the results in a written report. We’re frequently asked to look into breaches around outlets and penetrations and leaks through a flat roof with no obvious cause, across commercial flat roofs, green roofs and flat roof membranes.
In smaller places like Harefield, flat roofs are mostly on extensions, garages, porches and dormers. Even a small flat roof can let lots of water into the room below. Knowing the covering and how it was laid tells you what to expect from it, from felt and asphalt to EPDM rubber and GRP. Ponding, splits and lifting edges are the signs to look for from a window.
After the visit, you get a report with photographs, emailed to you. It explains the condition of the flat roof membrane, the defects we found and what we recommend.
- Where
- Harefield (UB9)
- Region
- Buckinghamshire
- Cost
- Quoted for your roof
- Reports
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
Electronic leak detection around Harefield
Ickenham Hall, about 3.4 miles south-east, is one of the historic houses in the wider area around Harefield. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material. A number of Buckinghamshire villages keep thatched roofs on their older buildings. In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
If you look after a building such as Harefield Infant School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you live in an older home near Harefield Baptist Church, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Harefield is about 3 miles south of Rickmansworth, in Buckinghamshire. We survey roofs in Harefield as part of our work across London and South East England. Across Buckinghamshire, we cover Harefield. We also survey roofs in London.
We survey roofs across UB9 for electronic leak detection. We offer electronic leak detection to properties on High Street, Vernon Drive and New Park Road. Neighbouring places we cover for electronic leak detection include Hill End (1 mile north), Woodcock Hill (1 mile north-east), Batchworth Heath (2 miles north-east), Batchworth (2 miles north-east) and Mill End (2 miles north). Larger places within reach include High Wycombe (12 miles west), Chesham (9 miles north-west), Marlow (13 miles west), Amersham (7 miles north-west), Beaconsfield (7 miles west) and Chalfont St Peter (3 miles west).
Landmarks near Harefield
Locally, jobs take us to homes and businesses close to The Green, The King's Arms Public House and The Harefield Academy. The closest station to Harefield is Denham station, about 2 miles south. Other landmarks nearby include Harefield Hospital (under half a mile north-west) and Chiltern Open Air Museum (3.4 miles north-west). Green spaces nearby include Horse Shoe Bay and Dews Farm Sand Pits.
Your questions about electronic leak detection in Harefield
How do I find out if my home in Harefield is listed?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you’re planning to re-roof in a different material.
Do you cover smaller places like Harefield?
Yes, Harefield is on our map. A small place gets exactly the same survey as a big one, with the route planned beforehand.
Which method do you use?
The roof decides the method. We’ll explain why when we quote.
Can you inspect my roof with a drone?
Yes, where it is applicable. Flights depend on the weather on the day and airspace rules, including flight restriction zones near airports. We’re a CAA-registered drone operator.
What will the report tell me?
It works through the roof part by part, in writing and with photos, and ends with what we recommend. The most urgent items are made clear.
What’s the price of ELD?
We quote for each roof individually. Send us details of the roof, and call 07833 053749 or email us for a quote.
Do you test for asbestos?
No. Our report may flag materials that could contain asbestos, but only a specialist asbestos surveyor can confirm it. Buildings built or refurbished before 2000 may contain it.
What happens if roof problems are left?
Cutting open a flat roof to find a leak can cause more damage. ELD aims to locate the breach first, so the repair can be targeted. In a smaller place like Harefield, wherever a roof is exposed, a loose ridge or flashing doesn’t stay loose for long. Wind gets under it and lifts more, and water follows.
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.
What you get with us
- Weekday and weekend surveys
- Drones and thermal imaging where it applies
- Professional indemnity and public liability insurance
- 5,000+ roofs surveyed
Take a look at how roof surveys are priced and two real surveys.
What else we do in Harefield
What we look for on each type of roof
Bituminous membranes
ELD is often possible on bituminous membranes though the layers below matter.
Single-ply membranes
Many offices and units have single-ply roofs. Laps and fixings are where holes often appear.
What we do, step by step
Before we start, tell us why you’ve booked: a purchase, a leak, a storm, new work or simply peace of mind. It helps us focus on what matters most to you. The visit typically takes a time that depends on the membrane area and the build-up, and we’ll give you a guide when quoting. In a smaller place like Harefield, parking is seldom the issue; lanes, gates and long drives are worth mentioning. Low roofs on bungalows can often be seen well from ground level, and the loft shows the rest, while taller roofs may need other vantage points or the drone where it applies.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- The report is sent for your roofer to act on.
Before the survey
- Jot down any questions you want answered
- Let us know where we can park nearby
- Agree roof access with the managing agent if it is shared
Book a survey
Every survey is priced before it is booked, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. To book, call 07833 053749 or send us an email.
Related advice
Surveys for landlords and agents in Harefield
We survey roofs for landlords and agents as well as homeowners. The report gives you a dated record of the flat roof membrane, with photographs, useful for planning maintenance.
Letting agents can arrange access with tenants, at a time agreed beforehand. Surveys run on weekdays, Saturdays and Sundays, which can make access easier.
Tips from our surveys
A few practical points come up again and again on our surveys. They’re worth knowing whatever the roof:
- Do not leave water getting in
- Share any drawings of the roof
- Limit access to the roof
- Do not let outlets block
Wet insulation may need attention after a leak. Your roofer can advise on that, and moisture readings can help.
Consider testing a new membrane before it is covered. Finding breaches is simpler at that stage.