Flat roofs, terraces and box gutters are where water gets in from outside. We trace roof leaks back to the failed membrane, flashing or seal — not just the spot it drips.
Water almost never enters a roof directly above where it drips inside — it runs along the structure first. That’s why chasing the stain rarely works.
We focus on the waterproofed flat roofs, terraces, parapets and box gutters we specialise in, and trace the water back to the actual entry point.

These usually get worse with heavy or driving rain.
Ceiling marks that appear or spread after heavy rain.
Water dripping from the ceiling or down a wall during a downpour.
Plaster bulging or sagging where water has pooled above.
Mould forming in upper corners of top-floor rooms.
A musty smell or damp in the rooms directly under the roof.
Water sitting on a flat roof or terrace instead of draining.

On the flat roofs and terraces we cover, these are the usual failures.
We follow the water back from the internal stain to where it actually gets in.
Every inspection starts at a fixed first-hour rate, confirmed with you before any work. No call-out surprises, and no obligation to proceed with a repair.
Fixed first hour on site · confirmed before we start
Guide pricing only. We confirm a fixed price before any work starts — no surprises.
Not quite your situation? These are the closest wet-area services we cover.
Book a roof leak inspection and we’ll trace it back to where water is really getting in.