Greater London · London and the South East
Electronic Leak Detection in Twickenham
Find out the condition of the flat roof membrane at your property in Twickenham. We visit on weekdays and at weekends.
- Leaking laps in the waterproofing
- New roofs to check before paving or planting
- Patched roofs that still leak
About our electronic leak detection in Twickenham
Our ELD testing covers flat roofs in Twickenham and the rest of London and the South East. Testing usually takes longer on a large 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. If you are worried about breaches hidden under paving or planting and damp inside with no sign on the roof, we can find out what’s behind it, whatever the roof.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. In Twickenham, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are often felt or asphalt, newer ones rubber or GRP.
The report records the flat roof membrane as we found it on the day. It is useful right away, and a good reference for later, for example when you want to check whether anything has changed.
- Where
- Twickenham (TW1, TW2, TW4, TW3)
- Region
- Greater London
- Cost
- Quoted for your roof
- Report
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
How the survey changes by roof type
Green and ballasted roofs
Some layers may need lifting for testing. We explain what’s needed when we quote.
Bituminous membranes
Many flat roofs use bitumen-based membranes. The build-up decides which method will work.
What affects the cost of electronic leak detection
What a survey costs depends on the time and equipment it needs. That comes down to:
- How tall the building is and how easy the roof is to see
- The use of thermal imaging or a drone
- Extra roofs, like extensions, dormers or garages
- Whether it’s a home or a commercial building
The cost of a survey depends on the roof: 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.
What we need to know
If you can, have these to hand when you contact us:
- The style of property, from a terrace to a block
- Where any leaks, stains or damp patches show inside
- What made you get in touch
- Pictures of the roof from a safe spot, if you have them
To get a price for electronic leak detection in Twickenham, call 07833 053749 or drop us an email. The address, the type of property and what you need to know help us give you an accurate price.
Leave it or get it looked at?
A visual inspection can miss tiny holes. Electronic testing can find breaches you cannot see by eye, on suitable membranes. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. That is a good reason to find problems early, while there is time to plan.
To find out what your survey will cost, call 07833 053749 or send us an email with the address and some details. We will confirm the figure before booking.
Why book us in Twickenham
- Professional indemnity and public liability insurance
- Plain-English reports with photos
- 5,000+ surveys completed
- An independent look at the roof
Take a look at what a roof survey costs and our case studies.
Electronic leak detection in Twickenham: local notes
Outer London has lots of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, frequently with hipped roofs in clay or concrete tiles. On a semi of that age, the small roofs over the bays, the hip tiles and any later dormer each need their own look. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. With Richmond House about 0.5 miles east, Twickenham sits in an area with a long building history. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years.
Take a building like St Richard Reynolds Catholic Primary School: schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks. If you run a business near Treaty Centre, flat roofs over shops and units are easy to forget until water comes through a ceiling. Parking in Twickenham, as in most of London, takes a little planning: let us know about parking bays, permits or a driveway when you book, as a space near the door cannot be promised.
Twickenham is about 7 miles south-west of Kensington, in Greater London. Twickenham is one of many places we visit across Greater London, for homes and businesses alike. Across Greater London, we cover Twickenham. There’s also a page for London.
All of TW1, TW2, TW4 and TW3 is within our area for electronic leak detection. If you need electronic leak detection at a property on Station Road, London Road and Talbot Road or a nearby road, we can help. You will find Twickenham on the A305 and A310, so it’s easy for us to get to. Neighbouring places we cover for electronic leak detection include Whitton (1 mile west), Eel Pie Island (1 mile east), Strawberry Hill (1 mile south), Ivybridge (1 mile north) and Fulwell (1 mile south). Further out, we also cover London (11 miles east), City of Westminster (9 miles north-east), Marylebone (10 miles north-east), Kensington (7 miles north-east), St Pancras (11 miles north-east) and Shoreditch (12 miles north-east).
Near you in Twickenham
We work in homes and buildings around Richmond upon Thames School, St Richard Reynolds Catholic High School and Marble Hill Park. The nearest railway station is Twickenham station, about 0.5 miles north-east of the centre. A little further out are Eel Pie Island Museum (0.6 miles east) and Treaty Centre (1.8 miles north-west). The countryside around Twickenham includes Richmond Hill and Ham Lands.
Tips that help
These tips come from what we see on roofs every week, before and after a survey:
- Tell us about the membrane and build-up if you know it
- Ask contractors to protect the membrane
- Act on new leaks promptly
- Don’t keep patching the same spot
Questions about the results are welcome. We can talk you through the findings.
Limit foot traffic on flat roofs. Many breaches come from foot traffic.
Towns and villages near Twickenham
More services for Twickenham
Can I check my roof myself?
What you cannot do safely is get up close. Roofs are fragile and slippery, and falls from height are serious. That’s where a survey comes in.
Your own check is a good start, but it is not a survey. You won’t see flashings, valleys or the backs of chimneys properly from ground level.
FAQs for Twickenham
Do you cover Twickenham?
We do. Every survey there gets the same written report with photos, and visits run on weekdays and weekends.
Does a conservation area affect roof work in Twickenham?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you are planning to re-roof in a different material.
Do you survey roofs on blocks of flats?
Yes, as long as access is agreed. Roofs over flats are frequently shared, so whoever owns or manages the building needs to agree access. We can only inspect what we are given access to.
Which days do you carry out surveys?
Visits run seven days a week in the daytime. Just say which days work for you.
Is the repair part of the test?
No, our part is finding the breaches. The report gives your roofer the locations.
What’s the best way to book?
To arrange a survey, phone 07833 053749 or email us and let us know the address and what you want to find out. We will confirm the price and find a day that suits.
Is it the same as a RICS Level 2 or Level 3 survey?
No. It is a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof, so it sits alongside a building survey rather than replacing it.
How it works
The visit typically starts outside and finishes in the loft: outside views come first, then the roof space if there is safe access. In total, it takes longer on a large roof than a small one, with the construction of the roof playing a part too. In a London area like Twickenham, the main things to sort out are parking and access: let us know about parking, the floor the property is on, any shared entrance and loft access. On the day, the roof is looked at from ground level, from windows, from inside the loft space and from the roof where it is safe.
- We start by finding out what the roof is made of and where it leaks.
- We check that the membrane and build-up suit electronic leak detection.
- 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.
- The breaches are recorded with photographs in a report for your roofer.
Before we arrive
- Let us know about any leaks, stains or damp patches you know of
- Make sure pets are kept safely away
- Find any records of previous roof work
Arrange a survey
A quick phone call is normally the easiest start: call 07833 053749 or drop us an email. You will have a price before anything is arranged.