Leicester roofing is dominated by Victorian and Edwardian housing, and on that stock the trouble is almost never in the main slope.
It is in the additions. A house of this type has a bay roof, frequently a porch roof and a rear addition roof, and every one of those is a small roof meeting a large one at an abutment. Those junctions were flashed once, a century ago, and they are where the water gets in. We are called to far more failed abutments and bay roofs in this city than failed main coverings, and the repair is usually a fraction of the re-cover people assume they need.
Chimney stacks are the other recurring item. On a terrace the stacks are shared, exposed on every side and usually still carrying original flaunching, and once the roof around a stack has been patched a few times the stack is next.
Covering is slate or clay tile on cut timbers, and inside a conservation area the material is not a free choice. The later housing at the city edges is concrete tile on trussed rafters and much simpler, though the weight point still holds: a roof built for concrete tile will generally take slate, but a roof built for slate cannot always take concrete tile.
Re-covering triggers a Building Regulations requirement to look at insulation, and we arrange that inspection and see it through to sign off. More on coverings, flat roofs and repairs on our roofing page.