Not every damaged roof needs replacing. If the problem is isolated—for example, a few broken tiles, a leaking flashing or damaged guttering—a repair may be sufficient. However, if the roof has widespread leaks, extensive decay, failing underlay or is approaching the end of its expected lifespan, replacement may be the more economical long-term option. A professional inspection can establish the best solution.

A properly installed roof can last for several decades, although the lifespan depends on the materials used, workmanship, weather exposure and maintenance. Good-quality slate and clay tiles can potentially last 50–100 years or more, while concrete tiles can commonly last 30–60 years. Regular inspections and prompt repairs can help maximise the life of your roof.

Most standard domestic roof replacements can be completed within several days to around two weeks, depending on the size and complexity of the property. Weather conditions, the condition of the roof timbers and whether insulation or structural repairs are required can affect the timescale. Your roofing contractor should provide an estimated completion time before work starts.

Some roof work is covered by permitted development, meaning planning permission may not be required. However, Building Regulations can still apply, particularly where you're replacing more than just the external covering or making structural changes. Requirements can also vary for listed buildings and properties in conservation areas. Your roofing contractor should advise you about the relevant requirements before work begins.