Roof Leak in Jersey or Guernsey? How to Find the Source Without Scaffolding
Roof leak in Jersey or Guernsey? Here's how to find the source — without scaffolding
A water stain on the ceiling rarely sits under the actual leak. Here's why roof leaks are so hard to trace — and how a drone finds the real source in an afternoon, with no one going up a ladder.
If you've got a damp patch spreading across a ceiling, a drip during every downpour, or a tide mark on an upstairs wall, the hardest part isn't the repair — it's finding where the water is actually getting in.
Water is sneaky. It enters through a failed flashing or a cracked tile, runs along a batten or a rafter, and only shows itself a metre or more away from the real fault. That's why so many Channel Island homeowners end up paying for repair after repair that never quite fixes the problem — the roofer treats the symptom, not the source.
A drone roof survey changes that. Instead of guessing from the ground or hiring scaffolding to send someone up, we capture every ridge, valley, chimney and flashing on your roof in close-up 4K — safely, from the air, usually in under an hour on site.
01Why roof leaks are so hard to trace
The point where water appears inside is almost never directly below the defect. On a pitched roof, water tracks downhill along timber and felt before it finds a join, a nail hole or a low point to drip through. By the time you see a stain, the entry point could be:
- A slipped, cracked or porous slate or tile higher up the slope
- Failed lead flashing around a chimney, valley or abutment
- Perished mortar on the ridge or verge
- A blocked or split valley gutter backing water up under the tiles
- Cracked render or pointing letting water in at roof level
- A failed seal around a rooflight, vent or soil pipe
From inside the loft, or from the street with a pair of binoculars, most of these are impossible to spot. You need to see the roof surface up close — the whole of it.
02The old way: scaffolding, ladders and guesswork
Traditionally, getting a proper look meant erecting scaffolding or sending someone up a ladder. That's slow, expensive and genuinely dangerous — and it has a hidden problem too. A contractor who's quoting for the repair has every incentive to find work. You often end up with a quote before you've had an honest, independent diagnosis.
Scaffolding alone can run to several hundred — often well over a thousand — pounds before a single tile is touched, and it can take days to put up and take down. For finding a leak, it's a sledgehammer to crack a nut.
03How a drone roof survey finds the source
We fly a CAA-licensed drone in a methodical grid over your entire roof, capturing high-resolution imagery of every surface and detail. Because we're independent — we survey, we don't sell you the repair — you get the facts first.
- We get on site fast. The flight itself usually takes around an hour, with no scaffolding to book and no access equipment to hire.
- We inspect every element. Ridges, valleys, flashings, chimneys, verges, gutters, rooflights — all captured in close-up.
- We pinpoint the likely source. The imagery shows the defects that line up with where the water is appearing inside.
- You get a clear report. Dated, high-resolution evidence with a plain-English assessment you can act on — and hand straight to a roofer or your insurer.
Stop paying for repairs that don't work
An independent drone survey shows you the real source of the leak first — so you only pay for the repair you actually need.
Book a drone roof survey04What you get
For a visual survey from £249, you get the close-up aerial imagery of your roof. For £375 we add a full written report — dated, insurer-ready, with the condition of every roof element assessed. Most reports are delivered within 2–3 days, weather permitting.
05What to do right now if water is coming in
While you arrange a survey, a few sensible steps limit the damage:
- Move furniture and valuables away from the drip and put down a bucket or container
- If a ceiling is bulging with trapped water, pierce a small hole to let it drain in a controlled way (it's safer than a collapse)
- Switch off electrics to any affected area if water is near light fittings
- Take dated photos of the damage inside — useful if you end up making a claim
- Don't climb up to look yourself. Wet Channel Island roofs — granite, slate, steep pitches — are exactly where falls happen
Then let us get a drone over it. Whether you're in Jersey or Guernsey, we'll show you where the water is getting in — safely, quickly, and without a scaffold tower in the front garden.
Frequently asked
Can a drone find a leak when it isn't raining?
Yes. We're looking for the physical defects that let water in — cracked tiles, failed flashings, perished mortar, blocked valleys — and those are visible in close-up imagery whether or not it's raining at the time. We match what we find to where the water is appearing inside.
How quickly can you come out?
We aim to get on site quickly, and the flight itself usually takes around an hour. If you've an active leak, tell us when you book and we'll prioritise it. The written report follows in 2–3 days, weather permitting.
Will I get evidence I can give my insurer?
Yes. Our full written report is dated and insurer-ready, with high-resolution imagery and a clear condition assessment. It's exactly the kind of independent evidence insurers and loss adjusters ask for. See our insurance roof surveys page for more.
Do you do the repair as well?
No — and that's deliberate. We survey, we don't sell you the repair, so our assessment is independent. You can take our report to any roofer of your choice, knowing the diagnosis is honest.
Tracing a leak? Let's get eyes on your roof
Tell us a little about your property and the problem. We'll fly a CAA-licensed drone over your roof — usually within hours of arriving — and show you exactly where the water is getting in.
Book a roof leak survey
Capture (C.I) Limited · CAA-licensed drone roof surveys across Jersey, Guernsey, Alderney, Sark & Herm · 07797 762644
