Hampshire · London and the South East
Electronic leak detection in Northbrook, Hampshire
Electronic leak detection to pinpoint holes in flat roof membranes for Northbrook, from an experienced roof surveyor. You get a clear written report with photographs.
- Damp inside with no sign on the roof
- Leaks through a covered membrane
- Leaking laps in the waterproofing
What electronic leak detection doesn’t cover
Every survey has limits, and it is better to know them up front. Bear these in mind:
- Some conductive membranes
- Carrying out the repair work
- Parts of the roof covered by fixed equipment
If you are not sure which survey you need, phone 07833 053749 or send us an email and we will give you a straight answer before you book. The full list of what we check.
Roofs we survey in Northbrook
- Liquid-applied waterproofing
- Commercial flat roofs
- Roof terraces and balconies
- Single-ply roofs
- Flat roof membranes
- Green roofs
Electronic leak detection in Northbrook
We carry out electronic leak detection on flat roofs in Northbrook and across London and South East England. Testing typically takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. We quote electronic leak detection for each roof, as the method and time depend on the roof. The results come in a written report with photos. We survey single-ply roofs, commercial flat roofs and green roofs, and common reasons people get in touch are leaks that return after repairs and leaking laps in the waterproofing.
In a small place like Northbrook, a flat roof can stand in the open, so edges, upstands and laps take a beating. Felt roofs, which often last around 15–20 years, usually show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. Exposed edges are normally the first part of a flat roof to go.
The report works through the roof section by section, from the coverings down to the gutters, with a note and a photo for each point. It records what’s sound as well as what is not.
- Where
- Northbrook (SO21)
- Region
- Hampshire
- Cost
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
How the survey changes by roof type
Green and ballasted roofs
Some layers may need lifting for testing. We discuss this before quoting.
Inverted and paved roofs
On inverted roofs, insulation sits above the membrane and that changes how testing works.
FAQs for Northbrook
Is my home in Northbrook listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. It’s worth checking before planning roof work, as both can affect what’s allowed.
Will you come out to Northbrook?
Yes. Northbrook is within the area we cover, which takes in towns, villages and rural addresses. We work right across London and South East England. Let us know about access, parking and anything unusual about getting there when you book.
Do you use low-voltage or high-voltage testing?
It depends on the membrane and the build-up. Low-voltage testing normally needs a wet surface, while high-voltage testing needs a dry, exposed membrane.
Do you test for asbestos?
No. Asbestos surveys and testing are not part of what we do. We flag materials that could contain asbestos, like cement sheets or soffits on pre-2000 buildings, and recommend a specialist asbestos surveyor checks them before they’re disturbed.
Can you find leaks on a covered flat roof?
It can be possible, depending on the roof. Covered roofs limit the methods we can use, so we check the build-up first.
Do you survey on Saturdays and Sundays?
We survey seven days a week: Monday to Friday, Saturdays and Sundays. Tell us which days suit you when you book.
Is this a RICS survey?
No. Our survey is a roof survey, not a RICS Level 2 or Level 3 survey of the whole building. It focuses on the roof and can sit alongside a RICS survey.
What happens on the day
We don’t take risks to get a closer look. Everything that can be seen safely is inspected, and anything we can’t see is noted in the report. The survey usually takes as long as needed for the roof’s area and construction, and we’ll give you a guide when quoting. Older roofs in small places like Northbrook can have low, tight loft spaces, so it is useful to know whether there is a loft hatch and how easy it is to reach. We only go where it’s safe.
- You let us know about the roof and where water is showing.
- We check whether the membrane and build-up suit ELD.
- The test method is chosen to suit the roof.
- The membrane is tested and breaches are found.
- A report with photos shows where each breach is.
How to prepare
- Note where any stains or damp appear
- Keep pets out of the way during the survey
- Find any records of previous roof work
How to book
Most bookings start with a short call: phone 07833 053749 or email us. The price is agreed before a date is set.
Related advice
Flat roofs in Northbrook
A number of Hampshire villages keep thatched roofs on their older buildings. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops. Older buildings may be listed or sit in a conservation area. Historic England’s list shows listed buildings, and the council can say whether a street is in a conservation area. Re-roofing in different materials may need permission there.
Landlords with a home close to Micheldever station may find that flat roofs on let property tend to be checked only when they fail, which is the costly way round. For site and facilities teams at buildings such as Micheldever CofE Primary School, schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks. Take an older house close to Church of St Mary: the joins between later flat roofs and the old walls are where problems typically start.
Northbrook is about 7 miles north of Winchester, in Hampshire. Whether the building in Northbrook is a house, a flat or a commercial unit, the roof can be surveyed on a weekday or at the weekend. Northbrook is one of the places in Hampshire where we work for electronic leak detection. There’s also a page for Southampton.
We cover every part of the SO21 postcode area for electronic leak detection and the streets around it. If you’re just outside Northbrook, we cover Micheldever (1 mile south-east), Stoke Charity (1 mile west), Hunton (2 miles west), Micheldever Station (2 miles north) and East Stratton (2 miles east). We also work in nearby towns such as Basingstoke (11 miles north-east), Winchester (7 miles south), Eastleigh (13 miles south), Andover (10 miles north-west), Chandler's Ford (13 miles south-west) and Alton (13 miles east).
Local landmarks in Northbrook
Typical jobs here are in homes near Half Moon and Spread Eagle pub, among other places. For rail, the closest station is Micheldever station, about 2.1 miles north.
DIY checks: what’s safe
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.
A lot can be seen from the ground. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Please do not climb up for a closer look.
Places near Northbrook
What else we do in Northbrook
Useful tips for Northbrook property owners
Here are a few things we’d tell any owner:
- Don’t keep patching the same spot
- Consider ELD before paving or planting goes on
- Use boards when working on the roof
- Tell us about the membrane and build-up if you know it
If water has been getting in, insulation under the membrane may be wet. Your roofer can advise on that and other checks can help judge it.
Consider testing a new membrane before it’s covered. It’s easier to find holes before more layers are added.
What happens if roof problems are left?
Leaks left running can wet the insulation and deck. Locating it early helps limit the damage. For older village homes like those around Northbrook, the right replacement materials aren’t always easy to find quickly. Spotting a problem early leaves room to find them.
All our prices include VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You will know the price for your survey before you book.
Why book with us
- 5,000+ roofs surveyed
- Independent findings on the roof’s condition
- Satisfaction rate of 98%
- Weekday and weekend surveys
See what a roof survey costs and what we found on two real jobs.