Essex · London and the South East
Electronic leak detection in Cannon's Green, Essex
Find out what’s going on with the flat roof membrane before you decide what to do next. We carry out electronic leak detection in Cannon's Green.
- Leaks that return after repairs
- New roofs to check before paving or planting
- Punctures from foot traffic or tools
About our electronic leak detection in Cannon's Green
Green roofs, ballasted roofs and roofs under paving are harder to test. The layers on top can limit the methods we can use, and some may need lifting. We talk this through before we quote. Any details of the build-up help because they show what’s under the surface. If testing isn’t possible, we’ll say so. If you’ve noticed failed seams and laps and breaches around outlets and penetrations, we can find out what’s behind it, whatever the roof.
In a small place like Cannon's Green, 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, normally show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. On an exposed roof, the edges tend to go first.
The report is written in plain words, so it makes sense without any roofing background. Photographs show what each point refers to.
- Place
- Cannon's Green (CM5)
- Region
- Essex
- Cost
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Insurance
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Flat roofs in Cannon's Green
What can be done to an older roof may depend on listing or a conservation area. Your council and Historic England’s list will tell you where you stand, before anyone quotes for re-roofing. Clay tiles and timber weatherboarding mark out many of the older buildings in Essex, while many towns grew with post-war and newer estates. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere.
The streets around a church such as Church of St Nicholas are often among the oldest in a place, and if yours is one of the older homes nearby, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Cannon's Green is about 7 miles east of Harlow, in Essex. Cannon's Green is one of many places we visit across Essex. Across Essex, we cover Cannon's Green. Chelmsford is in our area too.
Postcode districts we cover here for electronic leak detection: CM5. Close by, we survey roofs in Fyfield (1 mile north-west), Clatterford End (1 mile north-west), Norton Mandeville (1 mile south), Norwood End (1 mile north) and High Ongar (2 miles south). Further out, we also cover Chelmsford (9 miles east), Basildon (14 miles south-east), Harlow (7 miles west), Brentwood (7 miles south), Billericay (10 miles south-east) and Loughton (11 miles south-west).
What’s near Cannon's Green
Locally, jobs take us to homes and businesses close to Queens Head Public House. A little further out are Willingale Doe (2 miles north-east).
Landlords, agents and block managers in Cannon's Green
We also survey roofs for businesses and commercial landlords, from shops and offices to industrial units. Larger roofs take longer, so they’re priced to suit.
If you own several properties, surveys can be booked for more than one address. To arrange surveys for several addresses, phone 07833 053749 or email us with the addresses.
Questions from Cannon's Green
Do you carry out roof surveys in Cannon's Green?
We do. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.
Is my home in Cannon's Green listed or in a conservation area?
We can’t confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case.
Can you test a green or ballasted roof?
On some roofs, yes. Covered roofs limit the methods we can use, so we check the build-up first.
Will you repair the leak?
No, our part is finding the breaches. The report gives your roofer the locations.
What happens next?
We email you the written report with photos and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Do you look in the roof space?
If it’s needed and safe to reach, yes. Inside, we look for damp, staining, gaps and sagging.
Which method do you use?
We choose the method that suits the roof. You’ll know which method we plan to use before we start.
Roof by roof
Single-ply membranes
Some single-ply membranes suit electronic testing well but it depends on the product and layers.
Green and ballasted roofs
Roofs with planting or ballast hide the membrane. Some methods can work through these layers, depending on the build-up.
What a survey costs
We confirm the exact price before booking. These are the things that affect it:
- The number of roofs, including extensions and garages
- Any need for thermal images or a drone flight
- The type of building, from a house to a block or an office
- Features like valleys, chimneys, dormers and parapets
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.
What we need to know
You don’t need to know any roofing terms. It is enough to tell us:
- Dates you are working to, like exchange
- The style of property, from a terrace to a block
- Your postcode, so we can check access and travel
- Anything about access we should know
To arrange a survey, call 07833 053749 or send us an email and let us know the address and what’s prompted the survey. We will confirm the price before booking.
Checking the roof from ground level
The one thing to avoid is getting up close. Slates, tiles, flat roofs and rooflights can give way, and a fall can be serious. That is where a survey comes in.
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date.
The survey, step by step
The visit usually starts outside and finishes in the loft: first the slopes, edges and gutters from every safe viewpoint, then the loft space where it can be reached. In total, it takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. Rural addresses near Cannon's Green 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. After that, the survey runs as it would anywhere.
- We agree the area to be tested.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- The report is sent for your roofer to act on.
Before we arrive
- For a flat or shared roof, check access with the freeholder or managing agent
- Buyers: confirm access with the estate agent or seller
- Clear the way to the loft hatch
Book a survey
To get a price for electronic leak detection in Cannon's Green, phone 07833 053749 or drop us an email. A few details about the property and the roof help us price the survey accurately.
Related advice
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Signs you need electronic leak detection in Cannon's Green
On a flat roof, water spreads under the waterproofing. The leak may show some distance from where water gets in which makes it hard to find by looking.
A survey can pick up problems like:
- Repairs that haven’t stopped the leak
- Leaking laps in the waterproofing
- Leaks under green or ballasted roofs
- Waterproofing to test before it is covered
If you look after a building such as The Ongar Academy, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Choosing a roof surveyor
- Their insurance cover
- Which parts of the roof they’ll actually see
- Will they check the loft as well as the outside?
- Which limits apply to the survey