Hampshire · London and the South East
Balmerlawn Electronic Leak Detection
Get a clear view of the flat roof membrane at a property in Balmerlawn from an independent roof surveyor. Visits run on weekdays and weekends, in the daytime.
- Patched roofs that still leak
- Leaks at pipes, outlets or fixings
- Gaps at membrane joints
Electronic leak detection in Balmerlawn
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’ll explain our choice. We’ll say if your roof does not suit either method at the outset. We survey flat roof membranes, liquid-applied waterproofing and green roofs, and people most often book us about new membranes needing a check before handover and leaks showing away from the breach.
In a village or hamlet like Balmerlawn, flat roofs are normally on extensions, garages, outbuildings or barn conversions. They need the same care as any town roof: outlets, upstands, edges and the covering itself. We simply plan the journey and access ahead of time. Garages and outbuildings are easy to forget, so mention any you want included when booking.
Most points in the report come with a picture, because a photo of a cracked flashing says more than a paragraph. If something couldn’t be seen safely, the report is clear about it.
- Place
- Balmerlawn (SO42)
- Region
- Hampshire
- Prices
- Quoted for your roof
- Reports
- A written report with photos, by email
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
How the survey changes by roof type
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing and that changes how testing works.
Single-ply membranes
Some single-ply membranes suit electronic testing well, depending on the type and build-up.
Electronic leak detection in Balmerlawn: local notes
Balmerlawn lies within about 5 miles of the sea, where sea air brings more salt and stronger wind than inland. Coastal wind works at the edges of flat roofs, and salt air wears metal trims and fixings. Some Hampshire villages still have thatched roofs. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Next to the main roofs there’s typically a flat roof somewhere, whether on an extension, a garage or a commercial unit.
Take a building like Brockenhurst Church of England Primary School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you own a rental within reach of Brockenhurst station, the flat roof over a let home is worth a look before it becomes a tenant complaint. If you live in an older home near Church of St Nicholas, the joins between later flat roofs and the old walls are where problems typically start.
Balmerlawn is about 5 miles north of Lymington, in Hampshire. Anywhere in Balmerlawn, we can come and survey your property, on a weekday, Saturday or Sunday. Our area takes in places right across Hampshire. For surveys nearby, see our Southampton page.
We cover every part of SO42 for electronic leak detection. Neighbouring places we cover for electronic leak detection include Brockenhurst (1 mile south-west), Setley (1 mile south), South Weirs (2 miles south-west), Lyndhurst (3 miles north) and Emery Down (3 miles north). We also work in nearby towns such as Eastleigh (14 miles north-east), Totton (7 miles north), Chandler's Ford (13 miles north-east), Hedge End (13 miles north-east), Lymington (5 miles south) and Romsey (12 miles north).
Near you in Balmerlawn
Typical jobs here are in homes near Rose And Crown Hotel. For rail, the closest station is Brockenhurst station, roughly 0.9 miles south-west. Other landmarks nearby include Lymington New Forest Hospital (4 miles south).
What happens if roof problems are left?
Water trapped under a membrane can soak insulation and decking. Finding the breach sooner limits that. Older and listed buildings around Balmerlawn may need consent and matching materials for repairs, so leaving a defect until it is urgent leaves less time to plan.
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how safely it can be seen. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why book with us
- Professional indemnity and public liability insurance
- Photographs and a written report every time
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- An independent view of the roof
Read our cost guide and our case studies.
Practical tips
Small things make a difference. Our tips:
- Keep a note of leaks after rain
- Avoid repeated repairs without finding the cause
- Make sure trades protect the waterproofing
- Don’t let outlets block
Where the evidence points to walls, copings or rooflights, we will note it, with a suggestion of what to check next.
Keep people off the flat roof unless they need to be there. Many breaches come from foot traffic.
What you can safely check yourself
During heavy rain, look at the gutters from the ground or a window. Water spilling over the edge can point to a blockage or a sagging run.
It is useful to keep a record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry.
Balmerlawn: your questions answered
Will you come out to Balmerlawn?
Yes, smaller places are covered as well as towns. Our area covers London and South East England. Let us know about access, parking and anything unusual about getting there when booking.
Can you look at the flat roof of a hotel or office near Balmerlawn?
Yes, commercial flat roofs are part of what we cover. For a bigger roof, you will get a quote based on the building, and roof access is agreed with you before the visit.
Do you carry out surveys on Saturdays and Sundays?
We survey on any day from Monday to Sunday, during the day, which suits people who work during the week. Let us know your preferred days when you book.
What will the report tell me?
It works through the roof part by part, in writing and with photos, finishing with recommendations. Points are put in order of urgency where relevant.
What happens after the survey?
We email you the written report with photographs and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Are you structural engineers?
No. We’re roof surveyors, not structural engineers, and it does not include calculations. We will recommend an engineer if we see signs that call for one.
Will I get photos?
Yes, plenty. Pictures sit next to the findings they show, which makes the report easy to follow.
How the survey works
Once we’ve finished looking, we write up our findings as a photo-illustrated written report. As for time on site, it normally takes a time that depends on the membrane area and the build-up, which we set out in the quote. For a village or hamlet like Balmerlawn, the journey is planned beforehand: let us know about narrow lanes, gates, long drives and where we can park. The roof is looked at from the ground, from windows, from the loft where there’s safe access and from the roof where it is safe.
- First, you tell us about the roof build-up and where water is showing.
- The roof is assessed to see if electronic testing will work on it.
- We pick the low-voltage or high-voltage method that suits the roof.
- Testing runs across the roof to locate breaches in the membrane.
- We send a report with photos of each breach so your roofer can repair it.
Getting ready for the survey
- If you’re buying, check with the agent that we can get in
- If the roof is shared, arrange access with whoever manages the building
- Unlock side gates and any roof access doors
Getting a price
Booking is simple: just phone 07833 053749 or send us an email, let us know about the property and we’ll explain which survey suits. The price is agreed up front.
Read more
What we cannot see
Our findings are based on what we can see safely on the day, so some things are outside what a survey can do:
- Repairing the breaches (that is for your roofer)
- Water entering through details rather than the membrane
- Moisture spread under the membrane
Not sure which survey suits your roof? You can phone 07833 053749 or email us and we’ll tell you. What a survey covers and does not.
Roofs we survey in Balmerlawn
- Flat roof membranes
- Roof terraces and balconies
- Commercial flat roofs
- Green roofs
- Single-ply roofs
- Liquid-applied waterproofing