Surrey · London and the South East
Selsdon Electronic Leak Detection
Know where you stand with the flat roof membrane before you decide what to do next. Electronic leak detection in Selsdon, with photos and a clear written report.
- Breaches hidden under paving or planting
- Stains far from any visible defect
- Damage from equipment installers
Electronic leak detection in Selsdon: what you get
ELD can be carried out in more than one way. Low-voltage methods typically need a wet roof surface, while high-voltage testing needs a dry, exposed membrane. Which one suits depends on the membrane and the layers of the roof and we explain which we’ll use. We’ll say if your roof does not suit either method at the outset. We survey green roofs, flat roof membranes and single-ply roofs, and the problems we are asked to look at most are leaks under green or ballasted roofs and new membranes needing a check before handover.
Around a smaller place like Selsdon, flat roofs typically cover extensions, garages and dormers. They’re small, but a leak over a kitchen extension can do a lot of harm. What it’s covered in, and how well it was laid, decides what it needs, from felt and asphalt to EPDM rubber and GRP. From an upstairs window, look for standing water, splits and edges coming away.
We keep jargon out of it: where something needs attention, it says so plainly, and where it can wait, that is said too.
- Where
- Selsdon (CR2, CR0)
- Wider area
- Surrey
- Prices
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
What electronic leak detection looks like in Selsdon
Older houses across Surrey frequently have handmade clay tiles, and many have tile-hanging. A few of Surrey’s oldest buildings have heavy Horsham stone slab roofs. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. Historic houses such as Addington Palace, about 1 mile north-east, show how far back building in the area around Selsdon goes. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and any change of roofing material on a listed home needs checking with the council first.
For an older house near a landmark like St Francis, flat-roofed rear additions and dormers added over the years are worth checking. If you look after a shop, office or commercial unit, for instance near St George's Walk, the flat roofs over shops and commercial units are worth checking before a leak, not after.
Selsdon is about 2 miles south-east of Croydon, in Surrey. In Selsdon, as across Surrey, every roof gets the same careful survey. Our Surrey coverage includes Selsdon and the places around it. Our London page covers surveys nearby.
Postcode districts we cover here for electronic leak detection: CR2 and CR0. Whether your property is on York Road, Byron Road and Abbey Road or anywhere close by, we can survey it. Close by, we survey roofs in Forestdale (1 mile east), Addington (1 mile north-east), Sanderstead (1 mile south-west), Coombe (1 mile north-west) and Farleigh (2 miles south-east). Further out, we also cover Epsom (9 miles west), Horley (13 miles south-west), Redhill (9 miles south-west), Ewell (9 miles west), Reigate (10 miles south-west) and Caterham (4 miles south).
What’s near Selsdon
We work in homes and buildings around The Sir Julian Huxley pub, The Quest Academy and Littleheath Woods. Selsdon’s nearest station is Sanderstead station, roughly 1.7 miles west. Other landmarks nearby include St George's Walk (2.7 miles north-west) and Croydon Airport Visitor Centre (2.9 miles west). For a walk, there is Duppas Hill and Bramley Bank.
When you need someone else
Our survey is not a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- How wet the insulation is
- Fixing the holes we find
- Parts of the roof covered by fixed equipment
If you’re not sure which survey you need, phone 07833 053749 or use the contact form and we’ll give you a straight answer. What our survey covers.
What this survey covers
- Green roofs
- Commercial flat roofs
- Flat roof membranes
- Liquid-applied waterproofing
- Roof terraces and balconies
- Single-ply roofs
Selsdon: your questions answered
How do I find out if my home in Selsdon is listed?
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.
Is Selsdon within the area you cover?
Yes. Selsdon is within the area we cover, which takes in towns, villages and rural addresses. Our area covers London and South East England. Let us know about access, parking and anything unusual about getting there when booking.
Will you photograph what you find?
Yes, plenty. Pictures sit next to the findings they show.
Do I have to be there for the survey?
Not necessarily. An outside-only look can be arranged beforehand, but the loft and any rooms with damp need someone to let us in.
What will the report tell me?
It sets out what we found, why it matters and what we recommend, with photos throughout. It also says if any part of the roof couldn’t be seen safely.
What if it rains on the day?
It depends on the weather and the survey. In strong wind or heavy rain, a drone cannot fly and access may not be safe, and we’d agree another day.
Can you find leaks on a covered flat roof?
On some roofs, yes. Covered roofs limit the methods we can use, so we check the build-up first.
How we price electronic leak detection
Prices vary from roof to roof, and it comes down to:
- Features like valleys, chimneys, dormers and parapets
- The type of building, from a house to a block or an office
- The use of thermal imaging or a drone
- Height and safe access
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the price for your survey before booking.
Helping us price your survey
You do not need to know any roofing terms. It’s enough to let us know:
- The address and postcode of the property
- Access details, like a loft hatch or a shared roof
- What made you get in touch
- The type of building and roof, such as pitched or flat
Surveys can be booked for weekdays, Saturdays or Sundays. To find a date that works for you, phone 07833 053749 or send us an email.
Should I look at the roof myself first?
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it.
What you cannot do safely is get up close. Roofs are fragile and slippery. That part is for a survey, using safe viewpoints and a drone where it applies.
Why act early in Selsdon
A visual inspection can miss tiny holes. Electronic testing can find breaches you can’t see by eye, on suitable membranes. In a smaller place like Selsdon, wherever a roof is exposed, a loose ridge or flashing doesn’t stay loose for long. Wind gets under it and lifts more, and water follows.
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before booking.
Why book with us
- Customer satisfaction of 98%
- An independent look at the roof
- Surveys on weekdays, Saturdays and Sundays
- Drones and thermal imaging where applicable
Read what a roof survey costs or what we found on two real jobs.
Nearby places to Selsdon
More services for Selsdon
Common roof problems in Selsdon
Work on the roof can damage a membrane. Engineers fitting equipment, solar panels or aerials may leave damage behind.
We are often asked to look at:
- Punctures from foot traffic or tools
- Patched roofs that still leak
- Leaks showing away from the breach
- Holes around roof penetrations
Landlords with a home close to Sanderstead station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint.
What to check before booking
- What’s outside the scope of the survey
- How much experience they have with roofs like yours
- Which viewpoints they use to see the roof
- Whether VAT is added on top
The survey, step by step
We look at the roof from outside and, where it is relevant and there’s safe access, from inside the roof space too. Inside, we look for staining, damp, gaps and signs of movement. All in, the survey typically takes more time on a big roof than a small one, with the construction of the roof playing a part too. Parking around Selsdon is typically easier than in a town centre, but mention lanes, gates or long drives. Low roofs on bungalows can frequently be seen well from ground level, and the loft shows the rest.
- First, you tell us about the roof build-up and where water is showing.
- We confirm whether the roof is suitable for electronic testing.
- The method depends on the membrane and what sits above and below it.
- Testing runs across the roof to locate breaches in the membrane.
- The breaches are recorded with photographs in a report for your roofer.
Preparing for the visit
- Make a note of anything you’d like us to look at
- Let us know about any leaks, stains or damp patches you know of
- Find any records of previous roof work
How to book
Most bookings start with a short call: ring 07833 053749 or drop us an email, and we’ll ask about the building and what you need. You’ll have a price before anything is arranged.