The short answer
Begin with what is already there. For a roof close to Holy Trinity or the castle site, we photograph it, trace the real fault, and propose the narrowest repair in matching materials. A listed building needs the council's agreement before anything that alters its character, and we explain that before the quote is written.
Holy Trinity is grade II* listed, and the buildings around the castle site and the manor house have stood for centuries. Roofs in that corner of Ascott-under-Wychwood are not handled like a standard estate house. The first job is to understand what is up there, and that means getting on the roof with a camera before anyone talks about materials or cost.
Q1.1What do you check on an old stone roof first?
We look at the covering, the timbers and the junctions together. On a traditional stone roof the stones are heavy, the courses shrink towards the ridge, and the fixings behind them age faster than the stone. A leak is frequently a rotted peg, a soft batten or a failed valley rather than a broken stone, so renewing the fixings can save the covering. On slate or tile roofs of the same period, we check nail corrosion, cracked pieces, the state of the lead and whether an earlier repair went in with the wrong size or colour of slate.
Chimneys earn their own inspection. Old stacks take weather on all four faces, and the flashing where they meet the roof is one of the first places water finds its way in. Our chimney repairs page describes what a repair involves.
Q1.2When does a repair need the council's say?
Matching repairs on an unlisted house seldom call for any permission. Listed building consent is required for roof work that changes a protected house's character, and swapping the covering counts. Unsure whether yours is protected? West Oxfordshire District Council keeps the answer, and we hold the price until you have it. Where the roof is both listed and old, we propose reusing the existing covering wherever it is sound, and we explain which parts cannot be saved and why.
The survey produces photographs of your own roof, a written quote, and a plain note of what is repair and what is replacement.