Greater London · London and the South East
Tatsfield Electronic Leak Detection
Wondering about the flat roof membrane at a property in Tatsfield? We carry out electronic leak detection in Tatsfield and across Greater London, with plain-English findings.
- New roofs to check before paving or planting
- Failed seams and laps
- Repairs that haven’t stopped the leak
Electronic leak detection for homes and businesses in Tatsfield
ELD suits many waterproofing membranes on flat roofs over offices, units, blocks of flats and homes. It can be used to trace an existing leak or check a new membrane before handover. We quote for each roof based on its size and build-up. Testing can be carried out on weekdays, Saturdays or Sundays, depending on the weather. Just ask about your roof. We’re frequently asked to look into damage from equipment installers and leaks that return after repairs, across green roofs, commercial flat roofs and flat roof membranes.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. In Tatsfield, as anywhere in London, the right approach depends on what the roof is made of. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
After the visit, you get a written report with photos, emailed to you. It explains the condition of the flat roof membrane, the defects we found and what we recommend.
- Where
- Tatsfield (TN16)
- Region
- Greater London
- Prices
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays, Saturdays and Sundays
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Updated
- 27 October 2026
Questions from Tatsfield
Is parking a problem for a survey in Tatsfield?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Is my home in Tatsfield listed or in a conservation area?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you’re planning to re-roof in a different material.
Is this an asbestos survey?
No. Asbestos surveys and sampling aren’t something we do. Where a material might contain it, such as old cement sheets on a building from before 2000, the report flags it.
Can you inspect my roof with a drone?
Yes, where it is applicable. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and the airspace and weather are checked before every flight.
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 and can sit alongside a RICS survey.
What insurance do you have?
Professional indemnity and public liability insurance cover our surveys. Ask if you need details for a managing agent or building owner.
Do I have to be there for the survey?
Not always. An outside-only look can be arranged beforehand, but anything inside needs someone there to give access.
When to book a survey in Tatsfield
On a flat roof, water spreads under the waterproofing. The leak may show some distance from where water gets in, so tracing it by eye is difficult.
A survey makes sense if you’ve noticed:
- Leaks showing away from the breach
- New membranes needing a check before handover
- Leaks at pipes, outlets or fixings
- Gaps at membrane joints
Take a building like Charles Darwin School: large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Questions to ask before you book
- Will the report include photos?
- Which parts of the roof they’ll actually see
- Whether VAT is in the quoted price
- What experience they bring
What affects the cost of electronic leak detection
What a survey costs depends on the time and equipment it needs. The main factors are:
- Any need for thermal images or a drone flight
- Height and safe access
- How complicated the roof is, with its valleys, chimneys and parapets
- The roof’s overall size
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the exact price before booking.
What to let us know when you contact us
These details help when you get in touch:
- The address and postcode of the property
- Whether there is a loft hatch, a shared roof or tricky access
- The kind of building and roof involved
- Photos of the roof, taken safely from ground level or a window
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, phone 07833 053749 or use the contact form.
Flat and commercial roofs around Tatsfield
With Titsey Place about 1.4 miles south-west, Tatsfield sits in an area with a long building history. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead. Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, often with hipped roofs of clay or concrete tiles. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
Parking in Tatsfield, as in most of London, takes a little planning: tell us about permits, visitor bays or off-street space when booking. If your home is one of the older ones in the streets near Church of St Mary the Virgin, the joins between later flat roofs and the old walls are where problems normally start.
Tatsfield is about 5 miles east of Caterham, in Greater London. Tatsfield is part of the area we cover and the surrounding area across London and South East England. Our area takes in places right across Greater London. We also survey roofs in London.
Surveys in TN16 work the same way as everywhere else we cover. If you need electronic leak detection at a property on The Square, Ninehams Road and Maesmaur Road or a nearby road, we can survey it. Neighbouring places we cover for electronic leak detection include South Street (1 mile east), Titsey (1 mile south), Force Green (2 miles south-east), Moorhouse Bank (3 miles south) and Westerham (3 miles south-east). Further out, we also cover London (15 miles north), Stockwell (14 miles north-west), Orpington (7 miles north-east), Wimbledon (14 miles north-west), Kennington (14 miles north-west) and New Cross (12 miles north).
What’s near Tatsfield
The nearest railway station is Oxted station, roughly 3 miles south-west. Other landmarks nearby include Tandridge Priory (2.8 miles south). Open spaces near Tatsfield include West Kent Golf Course nature reserve and Betsom's Hill.
What you can safely check yourself
You can learn a lot from the ground. With binoculars, look for slipped or missing slates and tiles, gaps along the ridge and leaning chimneys. Please don’t climb up for a closer look.
During heavy rain, look at the gutters from the ground or a window. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
What we look for on each type of roof
Green and ballasted roofs
Testing before planting or ballast goes on is simpler.
EPDM rubber roofs
ELD on EPDM depends on the product and the layers. We check before we quote.
Also near Tatsfield
Other services in Tatsfield
What we do, step by step
We work from the outside in: outside views come first, then the loft space if there is safe access. All told, expect more time on a big roof than a small one, with the construction of the roof playing a part too. In Tatsfield, as in much of London, a good many properties are flats or terraces without side access, so the back of the roof is frequently seen from upstairs windows, from inside or, where a flight is allowed, from the air. Mention any building rules, key holders or managing agents as you book.
- 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.
- We pick the low-voltage or high-voltage method that suits the roof.
- The roof is tested and any breaches are located.
- The breaches are recorded with photos in a report for your roofer.
How to prepare
- Move anything stored under the loft hatch
- Let us know about parking near the property
- Leave side gates unlocked
Arrange a survey
A quick phone call is typically the easiest start: ring 07833 053749 or email us and we’ll ask a few questions about the roof. The price is agreed before a date is set.
Related advice
Tips that help
Nothing here needs a ladder. Our suggestions:
- Note where leaks show inside and when
- Consider ELD before paving or planting goes on
- Have roof specifications to hand
- Get leaks traced quickly
The report records each breach location with photos. Pass it to your roofer to repair the breach points.
Act on leaks quickly. Water under a membrane can spread.