Dry inside, whatever it is doing out there

Found — which is most of the work — then fixed and checked in the rain if we can.

Stripped back, membrane and battens renewed, and recovered, with the timber checked underneath.

Slipped, cracked or missing, replaced to match what is there.

Re-bedded or dry-fixed, which is where half of a windy night's damage starts.

Repaired or recovered in felt or membrane that lasts, not the cheapest roll on the shelf.

Repointed, re-flashed and sealed — where most old leaks actually come from.

Valleys, flashings, cappings and anything the rain runs along rather than off.

Cleared, repaired and replaced, and set to actually fall the right way.

Replaced where they have gone, so the roof edge stops rotting.

Rafters and battens repaired or replaced where the damp got there first.

Warm below, ventilated above, so the roof is not damp from the inside.

A written report with photographs, for buyers, sellers and insurance.