What “full replacement” means
More than changing a few tiles.
A serious reroof normally starts by removing the existing covering so the contractor can assess what is underneath. Depending on the property, the quotation may include new membrane, battens, tiles or slate, ridge and hip work, flashings, waste removal, scaffolding and any timber repairs discovered or allowed for.
The exact specification matters. Two quotes that both say “new roof” can contain very different assumptions.
When replacement becomes a sensible conversation
Age alone does not prove a roof needs replacement. But persistent failures across several areas, widespread covering deterioration, failing underlay, repeated repairs or a planned major renovation can make a whole-roof discussion reasonable. A competent specialist should inspect the roof and explain why replacement is recommended rather than relying on a doorstep claim.
What a detailed reroof quote should make clear
- Scaffolding or access arrangements and whether they are included.
- Removal and disposal of the existing roof covering.
- How the deck, rafters or other timbers will be assessed and how additional repairs are priced.
- Membrane, battens and the exact new covering specification.
- Leadwork, flashings, ridges, hips, valleys and rainwater details where relevant.
- Insulation or ventilation work included in the proposal.
- Estimated programme, payment stages, guarantees and what happens with variations.
Use our full quotation checklist →
How much does a new roof cost?
There is no honest single price. Published 2026 UK and Scottish guides put many standard full replacements in the mid-four-figure to low-five-figure range, while larger detached roofs, natural slate, difficult access, complex roof shapes and hidden structural repairs can push the total much higher.
That is why our form asks for property type and approximate roof size rather than pretending an online calculator can produce a final quote.