Corby roofing is more uniform than anywhere else we work, which makes diagnosis quicker and the honest answer cheaper more often than people expect.
The overwhelming majority of the housing is concrete tile on trussed rafters, laid in quantity to a consistent standard from the 1950s onward. Those roofs do not usually fail in the field. They fail at the details, and after seventy years the details are the oldest thing about them.
The verge is the most common. A mortar bedded verge cracks over time, lets water under the end tiles and eventually lifts them in a gale, and it is the usual reason for a leak at a gable end rather than anything wrong with the covering. A dry verge system fixes it permanently and costs far less than the re-roof people assume they need.
Flashings are the other. Where an original roof meets a later extension, a porch or a chimney, the flashing was often the weakest element on the building and is now decades old. Most of the leaks we are called to on this stock originate there, and telling somebody they need a flashing rather than a roof is a smaller invoice and the correct answer.
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.