Essex · London and the South East
Electronic Leak Detection in Navestock Common
Know where you stand with the flat roof membrane before you spend money on it. We carry out electronic leak detection in Navestock Common, with photographs and a clear written report.
- Leaks through a flat roof with no obvious cause
- Patched roofs that still leak
- Breaches around outlets and penetrations
Can I check my roof myself?
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date, as it helps a surveyor trace the cause.
You can learn a lot from ground level. Binoculars help you spot slipped slates or tiles, gaps along the ridge and a leaning stack. Never climb onto the roof to look.
Electronic leak detection in Navestock Common: what you get
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It works with an electrical current that passes through the membrane only where there’s a breach. That lets us locate holes that are too small to see so your roofer knows exactly where to repair. The results come in a report with photos. Common reasons to book are waterproofing to test before it’s covered and punctures from foot traffic or tools, across commercial flat roofs, roof terraces and balconies and green roofs.
Flat roofs on exposed homes in small places like Navestock Common take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which often last around 15–20 years, usually show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. Exposed edges are normally 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, and what we’d suggest next.
- Location
- Navestock Common (CM14)
- Region
- Essex
- Prices
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- When we survey
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Towns and villages near Navestock Common
Other services in Navestock Common
Honest limits
We only report what can safely be seen on the day, so some things are outside what a survey can do:
- Parts of the roof covered by fixed equipment
- Leaks from plumbing or windows
- The extent of water in the insulation
Not sure which survey suits your roof? You can call 07833 053749 or use the contact form and we will tell you. What our survey covers.
What this survey covers
- Commercial flat roofs
- Flat roof membranes
- Green roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Single-ply roofs
Flat and commercial roofs around Navestock Common
In Essex, older buildings are often clay-tiled, many with weatherboarding, while many towns grew with post-war and newer estates. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops. With Hare Hall about 3.3 miles south, Navestock Common sits in an area with a long building history. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs.
If you own a rental within reach of Harold Wood station, flat roofs on let property tend to be checked only when they fail, which is the costly way round. The streets around a church such as Church of St Thomas are often among the oldest in a place, and if your house is among the older ones nearby, the joins between later flat roofs and the old walls are where problems normally start. For site and facilities teams at buildings such as Drapers' Academy, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Navestock Common is about 4 miles north of Romford, in Essex. We cover Navestock Common and the rest of Essex. Navestock Common is one of the places in Essex where we work. For surveys nearby, see our Chelmsford page.
Here we cover the CM14 postcode area for electronic leak detection. Neighbouring places we cover for electronic leak detection include Waterhales (1 mile north-east), St Vincent's Hamlet (1 mile east), Noak Hill (1 mile south-east), Horseman Side (2 miles north-east) and Navestock Heath (2 miles north). Further out, we also cover Chelmsford (14 miles north-east), Basildon (12 miles east), Harlow (10 miles north-west), Brentwood (4 miles east), Billericay (9 miles east) and Loughton (6 miles west).
Near you in Navestock Common
Locally, jobs take us to homes and businesses close to Dagnam Park. The nearest railway station is Harold Wood station, roughly 3 miles south. Nearby you will also find Romford Shopping Hall (3.8 miles south) and Harold Wood Hospital (2.9 miles south). For a walk, there’s Bedfords Park.
Different roofs, different checks
Inverted and paved roofs
If the build-up rules out ELD, we will say so.
Green and ballasted roofs
Green roofs and ballasted roofs cover the waterproofing. Some methods can work through these layers, depending on the build-up.
Navestock Common questions
Will you come out to Navestock Common?
Yes, smaller places are covered as well as towns. We survey roofs across London and South East England. Just mention lanes, gates or anything else about the route when you book.
Is my home in Navestock Common listed or in a conservation area?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. If a 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.
How long will testing take?
It depends on the size of the roof and its build-up. We’ll give you an idea when we quote.
What if it rains on the day?
Light rain is normally fine; heavy rain and wind are different. In strong wind or heavy rain, a drone cannot fly and access may not be safe, and we’d agree another day.
Can you survey at the weekend?
Surveys run on weekdays and at weekends. To find a day that suits you, phone 07833 053749 or drop us an email.
What’s the price of ELD?
Electronic leak detection is quoted for your roof, because the method depends on the roof. Size, build-up and access all affect the price. To get a quote, call 07833 053749 or email us.
Will you fly a drone over my roof?
Yes, where it’s applicable. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and the airspace and weather are checked before every flight.
What we do, step by step
We photograph the roof as we go, so you can see in the report what we found and where. We take close-ups from wherever is safe, including by drone where it is applicable and the weather allows. A typical visit takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. Older rural homes like those around Navestock Common can have a main roof, lower lean-to roofs and outbuildings all joined together. Each part is looked at from wherever it can safely be seen, and anything we cannot see is noted.
- We agree the area to be tested.
- We get the roof ready for testing.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- You receive the results to pass to your roofer.
Before we arrive
- Jot down any questions you want answered
- Keep pets in another room
- For flats, make sure roof access has been agreed
Getting a price
Booking is simple: just ring 07833 053749 or use the contact form and give us a few details about the property and we will explain which survey suits. We confirm the price before anything is booked.
Related advice
What a survey costs
Several things affect the price of a survey:
- Roof area
- How complicated the roof is, with its valleys, chimneys and parapets
- How many separate roofs there are, such as extensions, dormers and garages
- Height and safe access
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
What we need to know
There’s no need for technical words. It’s enough to let us know:
- Anything about access we should know
- Pictures from the garden or a window, if you have them
- Dates you are working to, like exchange
- What’s prompted the survey
If you have photos of the roof, send them over. Pictures from ground level or a window are fine, and please don’t climb up for a closer look. To get started, ring 07833 053749 or drop us an email.
Rented homes, blocks and businesses
Letting agents and landlords in Navestock Common book surveys as well as householders. The report gives you a dated record of the flat roof membrane, with photos, useful for planning maintenance.
Managing agents and residents’ management companies use roof surveys to plan maintenance. The report sets out what needs attention now and what can wait.