Greater London · London and the South East
Roundshaw Electronic Leak Detection
Electronic leak detection in Roundshaw, with over 20 years’ experience behind it. You get a clear report with photos.
- Holes around roof penetrations
- New membranes needing a check before handover
- Leaking laps in the waterproofing
Practical tips
These tips come from what we see on roofs every week:
- Don’t leave water getting in
- Stay off the flat roof unless needed
- Find the breach before more patching
- Keep a note of leaks after rain
Keep the report with the roof’s records. It shows the condition of the membrane on that date.
Limit foot traffic on flat roofs. Feet and dropped tools are a common cause of holes.
How electronic leak detection works in Roundshaw
Electronic leak detection works on many flat roof membranes, on homes, blocks and commercial buildings. It helps trace a leak you already have or check a new membrane before handover. Each roof is quoted on its size and build-up. Testing can be carried out on weekdays, Saturdays or Sundays when conditions allow. Let us know about your roof to find out more. Common reasons to book are waterproofing to test before it’s covered and damage from equipment installers, on flat roof membranes, liquid-applied waterproofing and single-ply roofs.
Water getting through a flat roof in London can travel under the covering and appear some way from the hole. Upstands against parapets, outlets and the edge where flat meets pitched are common entry points. In a converted house in Roundshaw, the roof above may belong to the building rather than one flat.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent, whichever applies.
- Location
- Roundshaw (SM6, CR8, CR0)
- Region
- Greater London
- Price
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
What affects the cost of electronic leak detection
Every roof is different, so prices are confirmed before you book. This is what makes a difference:
- How many separate roofs there are, such as extensions, dormers and garages
- If the survey needs thermal imaging or a drone
- Commercial roofs and larger buildings
- Height and safe access
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You’ll know the figure before booking.
Helping us price your survey
A little information up front helps. Please include:
- What made you get in touch
- How the loft is reached, if there is one
- Your postcode, so we can check access and travel
- Where any leaks, stains or damp patches show inside
Booking is simple: just ring 07833 053749 or drop us an email and give us some details about the property and we’ll explain which survey suits. The price is agreed up front.
Landlord and commercial surveys in Roundshaw
Managing agents and residents’ management companies use roof surveys to plan maintenance. The report sets out what needs attention now and what can wait, which helps when budgeting.
Freeholders and residents’ companies use a roof report to plan and budget.
Flat and commercial roofs around Roundshaw
Alongside Victorian and Edwardian terraces, outer London has a great many interwar semis, often with hipped roofs of 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. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops. Roundshaw has a number of hotels within about a mile and a half, and like offices and blocks, hotels often sit under flat roofs. For hotels and other commercial buildings, finding the cause of a flat roof leak quickly keeps rooms in use.
With Addington Palace about 3.9 miles east, the area around Roundshaw has a long history. Older homes nearby may have later flat-roofed extensions or dormers, often re-covered more than once. The streets around a church such as St. Paul's are often among the oldest in a place, and if yours is one of the older homes nearby, flat-roofed rear additions and dormers added over the years are worth checking. Anyone responsible for a site like Wallington Primary Academy will know that a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Roundshaw is about 2 miles south-west of Croydon, in Greater London. Houses, flats, blocks and commercial buildings in Roundshaw can all book electronic leak detection. Our area takes in places right across Greater London. London is in our area too.
Surveys in SM6, CR8 and CR0 work the same way as everywhere else we cover. Whether your property is on Link Lane, Milton Road and Redwing Road or a nearby road, we can help. Close by, we survey roofs in Russell Hill (1 mile east), Bandonhill (1 mile north), Peaks Hill (1 mile south), Waddon (1 mile north-east) and Wallington (1 mile north-west). Further out, we also cover London (10 miles north), City of Westminster (11 miles north), Marylebone (11 miles north), Kensington (11 miles north), St Pancras (12 miles north) and Shoreditch (12 miles north).
Landmarks near Roundshaw
Locally, jobs take us to homes and businesses close to Wilson's School, Waddon Ponds and The John Fisher School. For rail, the closest station is Wallington station, about 0.9 miles north-west of the centre. Other landmarks nearby include Purley War Memorial Hospital (1.2 miles south-east) and Croydon Airport Visitor Centre (0.6 miles east). For a walk, there is Roundshaw Downs and Duppas Hill.
Nearby places to Roundshaw
What else we do in Roundshaw
What we look for on each type of roof
Inverted and paved roofs
Paving and terraces cover the membrane. Suitability depends on the layers.
Liquid-applied waterproofing
Liquid-applied coatings form a seamless layer, but can still have thin spots or holes. Whether ELD works depends on the coating and build-up.
The survey, step by step
The aim of the visit is simple: to look at the flat roof membrane as closely as is safe and record what we find. Notes and photographs go into the written report. The visit normally takes a length of time set by the membrane area and the build-up, and we’ll give you a guide when quoting. From the street, a London terrace usually shows only its front slope or parapet, so in Roundshaw we work round the house, using the street, the windows, the loft and any safe vantage point behind it. If other people live in the building, tell us who can let us into the shared parts.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- You receive the results to pass to your roofer.
Before the survey
- Keep pets in another room
- Buyers: confirm access with the estate agent or seller
- Have any questions written down, so nothing gets missed
Arrange a survey
Photos help, if you have them. Pictures from the ground or a window are fine; never climb up to get a better view. To get started, ring 07833 053749 or send us an email.
Advice
Common questions in Roundshaw
Do you cover commercial flat roofs around Roundshaw?
Yes, commercial buildings, hotels included, are part of the work. Roof access is agreed with the building manager or owner beforehand.
Is parking a problem for a survey in Roundshaw?
Sometimes, yes. Where there are permit zones, a visitor permit or nearby pay-and-display bay works well.
Does ELD include fixing the breach?
No. We test the membrane and report. You get the breach locations with photos for your roofer to repair.
Does this replace a RICS home survey?
No. We are experienced roof surveyors, and our survey covers the roof rather than the whole building. For the rest of the building, a RICS home survey is a separate job.
Are you insured?
We hold professional indemnity and public liability insurance, for every survey we carry out.
How long does electronic leak detection take?
The roof’s size and build-up decide how long it takes. You’ll know roughly how long before we start.
Can you survey in bad weather?
It depends on the weather and the survey. In strong wind or a downpour, a drone can’t fly and access may not be safe, and we’d agree another day.
What electronic leak detection doesn’t cover
This is not a RICS building survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- Build-ups without a suitable layer below
- Water entering through details rather than the membrane
- Fixing the holes we find
If you’re not sure which survey you need, call 07833 053749 or use the contact form and we will give you a straight answer. The full list of what we check.
What we check
- Green roofs
- Liquid-applied waterproofing
- Single-ply roofs
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs