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Essex · London and the South East

Electronic leak detection in Mountnessing, Essex

Electronic leak detection in Mountnessing from an independent, experienced roof surveyor. More than 20 years and over 5,000 surveys.

  • Damage from equipment installers
  • Water coming in under a flat roof
  • Leaks under green or ballasted roofs

Electronic leak detection in Mountnessing

When to book a survey in Mountnessing

When the membrane is buried, holes can’t be seen at all. Electronic methods can help on some of these roofs though it depends on the layers.

Common reasons to book include:

  • Punctures from foot traffic or tools
  • Leaking laps in the waterproofing
  • Leaks that return after repairs
  • Breaches around outlets and penetrations

Take a building like Mountnessing Church of England Primary School: ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.

Questions to ask before booking

  • What exactly goes into their report
  • Whether they hold professional indemnity and public liability insurance
  • Whether any drone flown is registered with the CAA
  • Their track record with similar roofs

What’s in a roof survey

Electronic leak detection in Mountnessing: what you get

Roofs covered with paving, ballast or planting need more thought. The layers on top can limit the methods we can use, and some may need lifting. We talk this through before we quote. Drawings or details of the roof’s layers are useful, as they show what lies beneath the surface. If testing is not possible, we will say so. If you’ve noticed leaks at pipes, outlets or fixings and repairs that haven’t stopped the leak, we can find out what’s behind it, on commercial flat roofs, liquid-applied waterproofing and single-ply roofs alike.

In a small place like Mountnessing, 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. Rubber and GRP last longer, though trims and joints still need a look. Exposed edges are typically the first part of a flat roof to go.

If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. You will know exactly what was inspected and what wasn’t.

Illustration of a flat roof membrane with a target marking a leak point and a small monitor
Where
Mountnessing (CM15)
Wider area
Essex
Prices
Quoted for your roof
Report
Written, with photos, emailed to you
Survey days
Weekdays, Saturdays and Sundays
Cover
PI and public liability insurance
Telephone
07833 053749
Updated
27 October 2026

Roof by roof

Bituminous membranes

ELD is frequently possible on bituminous membranes, depending on what’s below.

Green and ballasted roofs

Roofs with planting or ballast hide the membrane. Some methods can work through these layers, depending on the build-up.

Tips from our surveys

A little preparation and a few simple habits help, both for the survey and for the roof itself. Our tips:

  • Keep outlets clear of debris
  • Stay off the flat roof unless needed
  • Ask contractors to protect the membrane
  • Record dates and spots where water appears

Wet insulation may need attention after a leak. Your roofer can advise on that, and moisture readings can help.

Ask trades working on the roof to protect the membrane when they work up there. Check the roof after they’ve finished.

Your questions about electronic leak detection in Mountnessing

Does a conservation area affect roof work in Mountnessing?

The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it is worth checking before planning any.

Will you come out to Mountnessing?

Yes, smaller places are covered as well as towns. Our area covers London and South East England. Just mention lanes, gates or anything else about the route when you book.

What insurance do you have?

Every survey is covered by professional indemnity and public liability insurance, and we can provide details if a managing agent needs them.

Can you survey at the weekend?

Visits run seven days a week in the daytime. Just say which days work for you.

Do you test for asbestos?

No. We don’t carry out asbestos surveys or testing. If we see materials that could contain asbestos, such as cement roof sheets or soffits on buildings from before 2000, we flag them and suggest a specialist asbestos surveyor checks them before any work.

Does electronic leak detection work on all membranes?

Not every roof is suitable. Some membranes conduct electricity and some roofs lack the layer the test needs. If your roof won’t work, we’ll say so at the start.

What do I do with the report?

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.

What happens if roof problems are left?

Not every leak is in the membrane. ELD helps rule the membrane in or out, so other causes can be checked. Around Mountnessing, older homes often have old roof timbers, and water through a failed covering can rot timber if it is left.

Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. You will know the figure before booking.

What you get with us

  • Two decades and more of roof surveys
  • Drone flown under a CAA Flyer ID and Operator ID
  • 5,000+ surveys completed
  • PI and public liability insurance

Take a look at what a roof survey costs or our case studies.

For landlords and managing agents

For blocks of flats, a roof survey helps managing agents and residents’ management companies plan ahead. Recommendations are set out in order of urgency where relevant, which helps when budgeting.

Letting agents often book on a landlord’s behalf, with the report sent to whoever needs it. We agree a time with the tenant beforehand.

What we do, step by step

The visit usually starts outside and finishes in the loft: outside views come first, then the roof space if there’s safe access. In total, it takes a time that depends on the membrane area and the build-up, which we set out in the quote. Rural addresses near Mountnessing can be hard to find from a postcode alone, so a few directions, or a note of a nearby landmark, help us arrive on time. The visit itself is the same as anywhere else.

  1. We ask about the roof, its age, its membrane and where leaks appear inside.
  2. The roof is assessed to see if electronic testing will work on it.
  3. The testing method is chosen to suit the membrane and build-up.
  4. The roof is tested and any breaches are located.
  5. We send a report with photos of each breach so your roofer can repair it.

Preparing for the visit

  • Dig out any old roof reports or invoices
  • Make sure we can get to the back of the property
  • Point out any leaks or damp patches

Booking a survey

Buyers should book once an offer has been accepted, so there is time to use the report before exchange. Otherwise, simply ring 07833 053749 or drop us an email whenever suits you.

Ask for a survey

Advice

Electronic leak detection in Mountnessing: local notes

In Essex, older buildings are frequently clay-tiled, many with weatherboarding, while many towns grew with post-war and newer estates. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. With Ingatestone Hall about 1.6 miles east, Mountnessing sits in an area with a long building history. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and the council can say whether a home is in a conservation area.

For landlords with property near Ingatestone station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies.

Mountnessing is about 3 miles north-east of Brentwood, in Essex. We survey roofs in Mountnessing and the surrounding area as part of our work across London and the South East. Across Essex, we cover Mountnessing. For surveys nearby, see our Chelmsford page.

We cover every part of CM15 for electronic leak detection and the streets around it. We offer electronic leak detection to properties on Church Road, Roman Close and Roman Road and the roads around them. Other places close to Mountnessing include Swallows Cross (1 mile north-west), Green Street (1 mile north), Ingatestone (1 mile north-east), Buttsbury (2 miles east) and Hutton (2 miles south). We also work in nearby towns like Chelmsford (8 miles north-east), Basildon (7 miles south-east), Harlow (13 miles north-west), Brentwood (3 miles south-west), Maldon (15 miles east) and Canvey Island (13 miles south-east).

Local landmarks in Mountnessing

Locally, jobs take us to homes and businesses close to Shenfield High School, Hutton Country Park and George and Dragon pub and the streets around them. Mountnessing’s nearest station is Ingatestone station, about 1.6 miles north-east. Well-known places in the area include Brentwood Community Hospital (2.7 miles south-west). Green spaces nearby include Norsey Wood.

Map of Mountnessing © OpenStreetMap contributors
20+ yearsRoof survey experience
5,000+ surveys98% customer satisfaction
Drones and thermal imagingCAA-registered drone operator
Fully insuredProfessional indemnity and public liability
Reports from £150Prices include VAT