New Roofs & Roof Replacement
A new roof is one of the biggest single jobs you can have done to a house — and one of the longest-lasting. Done properly, a tiled or slated roof should outlive every other part of the building envelope. These pages cover full replacement, re-roofing, and new roofs for extensions and outbuildings.
Stripped to the timbers and rebuilt to last the next fifty years and more.
A new covering on sound bones — the most common kind of "new roof".
Clay and concrete tile roofs, laid and detailed properly.
The longest-lived roof covering there is — natural and man-made slate.
The small roofs — built with the same care as the big one.
The waterproof layer you never see — and why old bitumen felt fails whole roofs.
When does a roof need replacing?
Age alone isn't the trigger — plenty of hundred-year-old slate roofs are still doing their job. The real signs are systemic: tiles delaminating or shedding their surface across the whole roof rather than in one patch, underfelt that tears like paper when touched, nail fatigue letting slates slide in every wind, or a repair bill that repeats every winter. Our guides to how long roofs last and repair versus replacement go into the detail.
What a re-roof actually involves
A re-roof strips the existing covering back to the timbers, replaces anything that's rotten or undersized, fits a modern breathable membrane, re-battens, and lays the new covering — natural slate, clay or concrete tile — with correctly detailed ridges, verges, valleys and flashings. It's also the natural moment to sort ventilation, insulation top-ups and chimney work, because the scaffold is already up.
Smaller roofs count too
Not every new roof is a whole house. Extensions, garages, porches and outbuildings all need the same care in miniature, and a surprising number of leaks we're called to trace back to a poorly built extension roof or a garage roof that was never meant to last. Flat-roofed versions of these are covered in our flat roofing section.
Costs, honestly handled
Roof replacement is quoted from measurement and inspection, not guesswork — the covering you choose, the complexity of the roof and the state of the timbers underneath all move the number. Our guide to new roof costs explains what drives the price, and every quotation we give is itemised so you can see where the money goes.
New Roofs & Roof Replacement — your questions answered
How long does replacing a roof take? +
Do I need planning permission for a new roof? +
Can you re-roof in winter? +
Not sure what your roof needs?
Send us photos of the damage — our team will assess and recommend, at no cost or obligation.