Essex · London and the South East
Harold Wood Electronic Leak Detection
Electronic leak detection in Harold Wood and the rest of Essex. Surveys run on weekdays and at weekends.
- Repairs that haven’t stopped the leak
- Leaks under green or ballasted roofs
- Waterproofing to test before it is covered
What you can safely check yourself
Fresh stains on ceilings or walls after rain are worth noting. Photograph them and note the date, as it helps a surveyor trace the cause.
Keep a simple record: dates of leaks, photos from ground level and any work done on the roof. Share it with us when booking, as it helps us focus the survey.
How electronic leak detection works in Harold Wood
Electronic testing locates holes in the waterproofing but not every way water gets in. Water coming through walls, copings, rooflights or plumbing will not show on the test. We will tell you if we think the leak is coming from somewhere else. The test shows breaches in the membrane, not water coming through masonry or around frames. The report makes clear what was and wasn’t tested. You will also know what to check next. We’re frequently asked to look into leaks at pipes, outlets or fixings and failed seams and laps, across green roofs, roof terraces and balconies and liquid-applied waterproofing.
Flat roofs in smaller places like Harold Wood can be more exposed, especially where nothing shelters them, so wind catches loose edges and trims. Felt and bitumen also age in strong sun. Splits, blisters and lifting edges are what to look out for, along with water that sits after rain. A flat roof that still holds water days after rain is also worth a closer look.
You can share the report with anyone who needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent, whichever applies.
- Place
- Harold Wood (RM3, RM11, RM2)
- Wider area
- Essex
- Prices
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
Towns and villages near Harold Wood
More services for Harold Wood
Flat roofs in Harold Wood
Historic houses like Hare Hall, about 1 mile south-west, show how far back building in the area around Harold Wood goes. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs. In Essex, older buildings are often 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.
For landlords with property near Harold Wood station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. Anyone responsible for a site like Redden Court School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Harold Wood is about 2 miles north-east of Romford, in Essex. We cover Harold Wood and the rest of Essex, as part of our work across London and South East England. Our Essex coverage includes Harold Wood and the places around it. You can also see our page for London.
Postcode districts we cover here for electronic leak detection: RM3, RM11 and RM2. We cover properties on Oak Road, Ewan Road and Holt Road and the roads around them. Close by, we survey roofs in Gallows Corner (1 mile west), Ardleigh Green (1 mile south-west), Gidea Park (1 mile west), Emerson Park (1 mile south) and Heath Park (2 miles south-west). Within a short drive, we also cover Chelmsford (15 miles north-east), Basildon (10 miles east), Harlow (13 miles north), Brentwood (4 miles north-east), Billericay (9 miles east) and Loughton (8 miles north-west).
Around Harold Wood
Locally, jobs take us to homes and businesses close to The Morris Dancer Public House, Harold Wood Primary School and Havering College of Further and Higher Education. Harold Wood has its own railway station: Harold Wood station. Nearby you will also find Upminster Tithe Barn Museum of Nostalgia (2.1 miles south-east) and The Mercury Mall (2.1 miles south-west). Not far away are Hornchurch Cutting.
Practical tips
Over many surveys, some simple habits stand out:
- Note where leaks show inside and when
- Do not keep patching the same spot
- Use boards when working on the roof
- Keep foot traffic on flat roofs to a minimum
Where the evidence points to walls, copings or rooflights, we’ll note it, with a suggestion of what to check next.
Act on leaks quickly. The longer water gets in, the more insulation and decking can be affected.
How we price electronic leak detection
A few things affect what a survey costs:
- House, block, shop or office
- Extensions, dormers and garages with roofs of their own
- How tall the building is and how easy the roof is to see
- Features like valleys, chimneys, dormers and parapets
To find out what your survey will cost, call 07833 053749 or use the contact form with the address and some details. We will confirm the figure before booking.
What we need to know
A little information up front helps. Please include:
- The kind of building and roof involved
- The reason for the survey, such as buying, a leak or storm damage
- Any stains, drips or damp patches you’ve seen indoors
- Access details, such as a loft hatch or a shared roof
You can call us seven days a week, including Saturdays and Sundays. To book or ask a question, ring 07833 053749 or email us.
Common questions in Harold Wood
Is Harold Wood in the area you cover?
Yes, Harold Wood is one of the places we work. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.
Will you come out to Harold Wood?
Yes. Harold Wood is within the area we cover, which takes in towns, villages and rural addresses. We work right across London and South East England. Just mention lanes, gates or anything else about the route as you book.
What will the report tell me?
It sets out what we found, why it matters and what we recommend, backed by photos. Anything we couldn’t see safely is noted too.
Can you survey at the weekend?
Surveys run on any day of the week. To arrange a date, call 07833 053749 or send us an email.
Do you look in the loft space?
Where it’s relevant to the survey and there is safe access, yes. A clear path to the hatch helps.
What happens after the survey?
You receive the written report by email, with photos and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Can you test a green or ballasted roof?
On some roofs, yes. What sits on the membrane affects the method so we check the roof first.
Why it is worth a survey now in Harold Wood
Repairs in the wrong place leave the leak in place. Testing shows where the membrane is actually breached. Around Harold Wood, leaves and moss in gutters lead to overflowing water and damp walls, especially where trees overhang. Dealing with the cause is simple; drying out a wall is not.
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why us?
- Thermal imaging and drones used where they help
- Plain-English reports with photos
- CAA-registered drone operator (Flyer ID and Operator ID)
- Surveys on any day of the week
Read what a roof survey costs and our case studies.
How it works
The aim of the visit is simple: to see as much of the flat roof membrane as can safely be seen and record it clearly. Everything we note and photograph goes 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 Harold Wood, parking is seldom the issue; lanes, gates and long drives are worth mentioning. On bungalows and lower roofs, much can be seen from ground level, with the loft showing the underside.
- We start by finding out what the roof is made of and where it leaks.
- We confirm whether the roof is suitable for electronic testing.
- The method depends on the membrane and what sits above and below it.
- 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.
Before we arrive
- Let us know about parking before the day
- Keep pets out of the way during the survey
- Agree roof access with the managing agent if it’s shared
Arrange a survey
Booking is simple: just phone 07833 053749 or send us an email, let us know about the property and we will explain which survey suits. We confirm the price before anything is booked.
Read more
Signs you need electronic leak detection in Harold Wood
Flat roof membranes can be punctured by foot traffic, dropped tools or debris. Some are too small to see but water still finds them.
Most people get in touch when they’ve noticed something like this:
- A flat roof leak that can’t be traced
- Damp inside with no sign on the roof
- Leaks through a covered membrane
- New membranes needing a check before handover
For an older house near a landmark such as Saint Peter, flat-roofed rear additions and dormers added over the years are worth checking.
Before booking anyone
- Will the report include photos?
- Whether any drone flown is registered with the CAA
- Whether you can ask questions once you have the report
- Whether the roof space is looked at, where there is one