Hampshire · London and the South East
Electronic Leak Detection in Northney
Find out the condition of the flat roof membrane at your property in Northney. Visits run on weekdays and weekends, in the daytime.
- Gaps at membrane joints
- Repairs that haven’t stopped the leak
- Stains far from any visible defect
Electronic leak detection in Northney: what you get
Our ELD testing covers flat roofs in Northney and the rest of London and the South East. A visit normally takes as long as needed for the size of the roof and how it’s built, which we set out in the quote. We quote electronic leak detection for each roof, as the method and time depend on the roof. You get a written report with photos. Typical surveys look at leaks under green or ballasted roofs and patched roofs that still leak, across single-ply roofs, flat roof membranes and roof terraces and balconies.
Some older homes in villages like Northney are listed or in a conservation area, which can shape what a new flat roof may look like. Check with the council before planning any change of material. Knowing the roof’s condition is the starting point. Changes that affect a listed building’s special interest need listed building consent.
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
- Northney (PO11)
- Wider area
- Hampshire
- Cost
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Appointments
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
The survey, step by step
You do not need to do much on the day. Show us any stains, drips or problem areas you know about, and we will take it from there. A typical survey takes as long as needed for the membrane area and the build-up, and we’ll give you a guide when quoting. Somewhere like Northney needs a little journey planning: let us know about lanes, gates and parking. On the day, we inspect everything that’s safely in view, inside and out.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We check that the membrane and build-up suit electronic leak detection.
- The testing method is chosen to suit the membrane and build-up.
- Testing runs across the roof to locate breaches in the membrane.
- You get a report showing where each breach is, for your roofer to repair.
How to prepare
- Jot down any questions you want answered
- Make sure pets are kept safely away
- Find any records of previous roof work
Book a survey
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, ring 07833 053749 or use the contact form.
Related advice
Northney questions
Is my home in Northney listed or in a conservation area?
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 roofs near the sea, like those around Northney, take more of a battering?
Often, yes. Northney is within about 1 mile of the sea, and coastal roofs tend to see faster wear on metal parts and more wind lifting loose pieces.
How long have you been surveying roofs?
We have more than 20 years’ experience and have completed over 5,000 surveys across London and South East England.
Do you need to get into the loft?
Yes, where the survey calls for it and there’s safe access. Inside, we look for damp, staining, gaps and sagging, as far as the space allows.
Does electronic leak detection work on all membranes?
ELD doesn’t suit every roof. Certain membranes are conductive and some roofs lack the layer the test needs. We will tell you if yours isn’t suitable at the start.
Which days do you carry out surveys?
We survey seven days a week: weekdays, Saturdays and Sundays. Let us know which days suit you as you book.
Can you test a green or ballasted roof?
Sometimes. The layers on top and the build-up below decide it, and some may need lifting. We’ll discuss it before we quote.
Different roofs, different checks
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing and that changes how testing works.
Bituminous membranes
Bituminous felt and modified bitumen membranes are common. The build-up decides which method will work.
What we can’t see
This isn’t a RICS building survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Carrying out the repair work
- The extent of water in the insulation
- Leaks from walls, copings or rooflights
If in doubt, phone 07833 053749 or drop us an email and we’ll suggest the right survey. The full list of what we check.
What we look at
- Liquid-applied waterproofing
- Flat roof membranes
- Commercial flat roofs
- Green roofs
- Roof terraces and balconies
- Single-ply roofs
Towns and villages near Northney
More services for Northney
Leave it or get it looked at?
Chasing a leak again and again is frustrating. A report showing the breach points gives your roofer a clear target. Older cottages and farmhouses around Northney can have roof timbers that have been there a very long time, and water through a failed covering can rot timber if it’s left.
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You’ll know the price for your survey before booking.
Why choose Independent Roof Survey in Northney
- Professional indemnity and public liability insurance
- 5,000+ surveys completed
- Customer satisfaction of 98%
- An independent view of the roof
Take a look at how roof surveys are priced or what we found on two real jobs.
Before and after the survey
From years of surveys, a few habits stand out:
- Have roof specifications to hand
- Limit access to the roof
- Keep outlets clear of debris
- Test new membranes before covering them
After your roofer repairs the breaches, a retest can confirm them, where the roof still suits the method.
Act on leaks quickly. Water under a membrane can spread.
Local flat roofs in Northney
The coast is about 1 mile or less from Northney, where sea air brings more salt and stronger wind than inland. Wind can catch loose edges and trims on a flat roof, and salt air is hard on metal trims, flashings and fixings. A number of Hampshire villages keep thatched roofs on their older buildings. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
If you live in an older home near Church of St Peter, the flat roofs on later extensions tend to wear out long before the main roof. For site and facilities teams at buildings such as Warblington School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Northney is about 3 miles south-east of Havant, in Hampshire. Northney gets the same service as everywhere else we work: a careful look at whatever is safely visible, photographs and a clear written report. We cover towns and villages across Hampshire, large and small.
Postcode districts we cover here for electronic leak detection: PO11. We cover properties on Northney Lane, Spinnaker Grange and Northney Road. Neighbouring places we cover for electronic leak detection include North Hayling (1 mile south), Warblington (1 mile north), Tye (1 mile south), Stoke (1 mile south-west) and Langstone (1 mile north-west). Further out, we also cover Gosport (8 miles west), Havant (3 miles north-west), Fareham (10 miles west), Horndean (6 miles north), Waterlooville (5 miles north-west) and Petersfield (12 miles north).
Near you in Northney
We work in homes and buildings around Eames Farm and The Ship Inn and the streets around them. For rail, the closest station is Warblington station, about 1.7 miles north of the centre. Nearby you’ll also find Havant Museum (1.7 miles north-west) and Havant War Memorial Hospital (2.1 miles north-west). Open spaces near Northney include Hayling Billy.
Signs you need electronic leak detection in Northney
A breach can be left during installation. ELD on a new roof can show holes before they cause leaks.
We’re often asked to look at:
- Waterproofing to test before it is covered
- Leaks at pipes, outlets or fixings
- Leaks that return after repairs
- Stains far from any visible defect
Warblington Castle lies about 1.1 miles north, so building around Northney goes back a long way. Older homes nearby may have later flat-roofed extensions or dormers, frequently re-covered more than once.
Before booking anyone
- How they’ll see the roof: from the ground, the loft, the roof or by drone
- What they won’t be able to tell you
- What happens after the report arrives
- How much experience they have with roofs like yours