Essex · London and the South East
Electronic leak detection in Great Horkesley, Essex
A careful look at the flat roof membrane at your property in Great Horkesley, with photos and a written report.
- Punctures from foot traffic or tools
- Leaks through a flat roof with no obvious cause
- Damp inside with no sign on the roof
How electronic leak detection works in Great Horkesley
Our ELD testing covers flat roofs in Great Horkesley and the rest of London and the South East. A visit 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 liquid-applied waterproofing, roof terraces and balconies and single-ply roofs, and people most often book us about leaks through a covered membrane and failed seams and laps.
Around Great Horkesley, many homes have a garden room, garage or outbuilding with a flat roof. They’re rarely looked at until something gets wet. It’s worth mentioning them when you book, so the visit can include them, along with the main flat roof. Felt, rubber and GRP coverings on garages and outbuildings age in just the same way as the main roof’s.
Pictures do a lot of the work in our reports, 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.
- Location
- Great Horkesley (CO6)
- Region
- Essex
- Prices
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Survey days
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026

Questions from Great Horkesley
Is my home in Great Horkesley listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Is Great Horkesley 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 as you book.
How experienced are you?
We’ve completed more than 5,000 surveys, across 20+ years of surveying roofs.
Can you find leaks on a covered flat roof?
Sometimes. It depends on the build-up and the layers above the membrane and parts may need to be lifted. We talk this through first.
How fast do I get the report?
Each package has its own report time. Basic: within 48 hours. Standard: 24 to 48 hours. Premium: the same day. Mention any deadline when you book.
How much does electronic leak detection cost?
Each roof is quoted on its size and build-up. Send us details of the roof, and ring 07833 053749 or email us for a quote.
What do I do with the report?
The report comes by email, and you decide the next step: use it with a seller, an insurer, a roofer or a managing agent.
What we are asked to look at in Great Horkesley
Other trades on the roof can puncture the waterproofing. Fixings, equipment and foot traffic can leave small holes.
Look out for signs like these:
- Punctures from foot traffic or tools
- Gaps at membrane joints
- Leaks at pipes, outlets or fixings
- Leaks that return after repairs
Take a building like The Bishop William Ward 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
- Whether the inside of the roof is included
- Their drone registration, if they fly one
- Whether you get a written report with photos
- Which parts of the roof they’ll actually see
What electronic leak detection does not cover
Every survey has limits, and it is better to know them up front. Bear these in mind:
- Build-ups without a suitable layer below
- How wet the insulation is
- Leaks from walls, copings or rooflights
If you are not sure which survey you need, ring 07833 053749 or use the contact form and we will give you a straight answer before you book. What our survey covers.
Roofs we survey in Great Horkesley
- Flat roof membranes
- Single-ply roofs
- Roof terraces and balconies
- Commercial flat roofs
- Green roofs
- Liquid-applied waterproofing
Electronic leak detection in Great Horkesley: local notes
Older buildings in Essex often have clay tiles and weatherboarding, while many towns grew with post-war and newer estates. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops. There are about 500,000 buildings on England’s list of listed buildings, and around 10,000 conservation areas. If your home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission, so the council is the place to ask.
For businesses in and around places such as Lion Walk, the flat roofs over shops and commercial units are worth checking before a leak, not after. The streets around a church such as Church of St John are often among the oldest in a place, and if you own one of the older houses nearby, flat-roofed rear additions and dormers added over the years are worth checking.
Great Horkesley is about 3 miles north of Colchester, in Essex. Whether the building in Great Horkesley is a house, a flat or a commercial unit, we can survey the roof on a weekday or at the weekend. Our Essex coverage includes Great Horkesley. For surveys nearby, see our Chelmsford page.
Surveys in CO6 work the same way as everywhere else we cover. If you need electronic leak detection at a property on Exeter Close, Malvern Way and Keelers Way or anywhere close by, we can help. Neighbouring places we cover for electronic leak detection include Mile End (1 mile south-east), West Bergholt (1 mile south-west), Little Horkesley (2 miles north-west), Wissington (3 miles north-west) and Fordham Heath (3 miles south-west). We also work in nearby towns such as Colchester (3 miles south), Braintree (14 miles west), Clacton-on-Sea (15 miles south-east), Witham (13 miles south-west), Camulodunum (3 miles south) and Halstead (10 miles west).
Local landmarks in Great Horkesley
Typical jobs here are in homes near The Half Butt Inn and Gilberd School and the streets around them. The nearest railway station is Colchester station, roughly 1.9 miles south. Other landmarks nearby include Lion Walk (2.8 miles south) and Colchester Castle (2.8 miles south-east). For a walk, there is Westhouse Wood.
Leave it or get it looked at?
Repairs in the wrong place leave the leak in place. Testing shows where the membrane is actually breached. On a bungalow or cottage around Great Horkesley, the roof sits close to the rooms below, so water can show inside quickly once it gets past the covering. Catching the cause first saves redecorating as well.
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how safely it can be seen. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why book with us
- 98% of customers satisfied
- Two decades and more of roof surveys
- An independent view of the roof
- Covered by professional indemnity and public liability insurance
Read what a roof survey costs or what we found on two real jobs.
The survey, step by step
Before we start, let us know why you’ve booked: buying, a leak, storm damage, new work or just wanting to know where things stand. It helps us focus on what matters most to you. Most visits take longer on a large roof than a small one, and the build-up of the roof makes a difference too. Homes around Great Horkesley often have gardens on more than one side, which gives us room to step back and see the roof. Mention any side of the property we can’t get to. The loft, where there’s safe access, completes the picture.
- We start with what you know about the roof and the leak.
- We check whether the membrane and build-up suit ELD.
- We choose a low-voltage or high-voltage method to match the roof.
- We test the roof and locate any breaches.
- A report with photos shows where each breach is.
Preparing for the visit
- Leave side gates unlocked
- Tell us where we can park nearby
- Point out any leaks or damp patches
Arrange a survey
To book a survey, ring 07833 053749 or send us an email and let us know the address and what’s prompted the survey. We’ll confirm the price before you book.
Related advice
Towns and villages near Great Horkesley
Other services in Great Horkesley
Practical tips
Most of what helps is simple and safe from the ground. Our suggestions:
- Stay off the flat roof unless needed
- Find the breach before more patching
- Keep a note of leaks after rain
- Clear flat roof outlets regularly
If water has been getting in, insulation under the membrane may be wet. That is something to discuss with your roofer and other checks can help judge it.
Check contractors protect the waterproofing when they work up there. Check the roof after they’ve finished.
For landlords and managing agents
Shared roofs need a little more planning: we need access agreed with the building owner or managing agent. Tell us about it when booking and we’ll plan the visit with that in mind.
Surveys can also be booked by buyers’ agents acting for a client. The report is emailed, so it can go straight to your client.