Essex · London and the South East
Mark Hall North Electronic Leak Detection
A careful look at the flat roof membrane at your property in Mark Hall North, and put it all in a written report with photos.
- A flat roof leak that can’t be traced
- Failed seams and laps
- Punctures from foot traffic or tools
For landlords and managing agents
Any of our surveys can be booked by landlords, agents and building managers in Mark Hall North. For a price for a let property or a block, call 07833 053749 or use the contact form.
We survey roofs for landlords and agents as well as homeowners. A report with photos gives you a clear record of the flat roof membrane, useful for planning maintenance.
Electronic leak detection in Mark Hall North
There are different ELD methods. Low-voltage methods usually need a wet roof surface and high-voltage methods need the membrane dry and exposed. Which one suits depends on the membrane and the layers of the roof and we explain which we’ll use. If neither method suits your roof, we’ll tell you at the outset. If you’ve noticed waterproofing to test before it’s covered and breaches around outlets and penetrations, we can find out what’s behind it.
Around a smaller place like Mark Hall North, flat roofs normally cover extensions, garages and dormers. Even a small flat roof can let a good many 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.
The report works through the roof section by section, from the coverings down to the gutters. It records what’s sound as well as what is not.
- Where
- Mark Hall North (CM20, CM17)
- Region
- Essex
- Price
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
What we do, step by step
The aim of the visit is simple: to see as much of the flat roof membrane as can be seen safely and record it clearly. Notes and photographs go into the written report. It typically takes a length of time set by the roof’s area and construction, and we’ll give you a guide when quoting. In a smaller place like Mark Hall North, as anywhere, the forecast plays a part: the parts that need calm, dry weather are planned around it.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- The roof is assessed to see if electronic testing will work on it.
- The method depends on the membrane and what sits above and below it.
- We test the membrane and find where current is passing through it.
- We send a report with photos of each breach so your roofer can repair it.
Before we arrive
- Mention any parking restrictions on your street
- Leave side gates unlocked
- Have any questions written down, so nothing gets missed
Getting a price
Surveys can be booked for weekdays, Saturdays or Sundays. To find a date that works for you, phone 07833 053749 or send us an email with the address and the days you’d prefer.
Related advice
Before and after the survey
There’s plenty you can do without going near the roof. Here’s what helps most:
- Keep foot traffic on flat roofs to a minimum
- Don’t let outlets block
- Note where leaks show inside and when
- Don’t keep patching the same spot
Keep the report with the roof’s records. It shows the condition of the membrane on that date.
Consider testing a new membrane before it is covered. It is easier to find holes before more layers are added.
What electronic leak detection looks like in Mark Hall North
Weatherboarded walls and clay tile roofs are typical of older Essex buildings, while many towns grew with post-war and newer estates. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. Harlow, which Mark Hall North is part of, is one of England’s post-war new towns. Homes from the post-war decades are common in the new towns, many with low-pitched roofs in concrete tiles and flat-roofed garages or porches. Many of those flat roofs have been re-covered over the years, and some may still have older felt. Cement sheet roofs on buildings from before 2000 may contain asbestos, so a specialist asbestos surveyor should check them before they’re disturbed.
For landlords with property near Harlow Town station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. Take a building like Tany's Dell Primary School and Nursery: schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks. The streets around a church such as St Andrew's Methodist Church are frequently among the oldest in a place, and if your home is one of the older ones nearby, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Mark Hall North is about 1 mile north of Harlow, in Essex. We survey roofs in Mark Hall North and the rest of Essex. Across Essex, we cover Mark Hall North and the places around it. We also survey roofs in Chelmsford.
All of CM20 and CM17 is covered for electronic leak detection, from the main roads to the quietest streets. Local streets include West Road, South Road and School Lane, and we cover them all. Close by, we survey roofs in Mark Hall South (1 mile south-east), Harlow (1 mile south), Netteswell (1 mile south-west), Newhall (1 mile south-east) and Latton (1 mile south-east). Larger places within reach include Brentwood (13 miles south-east), Loughton (9 miles south), Waltham Abbey (8 miles south-west), Great Dunmow (12 miles north-east), Epping (5 miles south) and Stansted Mountfitchet (9 miles north).
What’s near Mark Hall North
Typical jobs here are in homes near The Essex Skipper pub, Harlow Marsh and Fawbert and Barnard's School, among other places. The nearest railway station is Harlow Town station, roughly 0.9 miles west. A little further out are Mark Hall Cycle Museum (under half a mile east) and Princess Alexandra Hospital (1.3 miles west). Not far away are Hunsdon Mead.
Roof by roof
Liquid-applied waterproofing
Pinholes in a coating can let water through. ELD can help locate them on suitable roofs.
EPDM rubber roofs
EPDM is a long-lasting flat roof membrane, but can still be punctured.
Honest limits
This is not a RICS building survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- Roofs whose membrane or build-up is not suitable
- How wet the insulation is
- Carrying out the repair work
Not sure which survey suits your roof? You can call 07833 053749 or send us an email and we will tell you before you book. What a survey covers and does not.
What we look at
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs
- Single-ply roofs
- Green roofs
- Liquid-applied waterproofing
What affects the price in Mark Hall North
We confirm the exact price before you book. This is what makes a difference:
- Whether thermal imaging or a drone is needed
- How big the roof is
- The number of roofs, including extensions and garages
- Building height and the viewpoints available
What a survey costs comes down to the roof itself: 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.
Helping us price your survey
These details help when you get in touch:
- Dates you’re working to, like exchange
- What kind of property and roof it is
- Any marks or damp showing indoors
- Why you want a survey: buying, a leak, a storm or new work
You can call us seven days a week. For a price or to book, phone 07833 053749 or use the contact form.
Questions from Mark Hall North
Is Mark Hall North within the area you cover?
Yes, smaller places are covered as well as towns. We survey roofs across London and South East England. Let us know about access, parking and anything unusual about getting there when you book.
Are flat-roofed garages and porches in Mark Hall North worth including?
It’s often worth it, as these roofs are easy to forget. Cement sheet roofs on buildings from before 2000 may contain asbestos, so a specialist asbestos surveyor should check before they’re disturbed.
Do you use drones?
Where it helps and the rules allow, yes. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and every flight depends on the airspace and the weather.
Do you look in the roof space?
Where it’s relevant to the survey and there’s safe access, yes. Please clear anything stored under the hatch.
What happens next?
We email you the written report with photos and recommendations. It is yours to share with a seller, insurer, roofer or managing agent, whichever applies.
Can you survey in bad weather?
It depends on the weather and the survey. High wind or heavy rain can make access unsafe and ground a drone, so we’d move the date with you.
Does electronic leak detection work on all membranes?
That depends on the roof’s membrane and layers. Tell us what you know about the roof and we will confirm suitability.