Roof Repair vs Full Replacement: How to Decide Honestly
Most leaks are repair jobs. Some aren't. Here's how a working roofer actually decides, and the questions you should ask before agreeing to a full re-roof quote.
Targeted Repair
Localised failures: a chimney flashing, a single valley, a cluster of slipped tiles.
- £200–£900 typical job
- Same-week turnaround
- No scaffolding for small jobs
- Doesn't address ageing of the wider roof
- Repairs around end-of-life slate may need redoing in 3–5 years
Strip & Recover
Roofs at end of life — nail-sick slate, widespread tile slippage, sagging ridge.
- 20–60 year lifespan reset
- Insulation and underlay upgraded at the same time
- Manufacturer warranty
- £6,000–£12,000+ depending on size
- 1–2 weeks site time
- Scaffolding required
Our honest verdict
If you've had more than 2 repair callouts in 3 years, or you're seeing nail-sickness across multiple elevations, replacement is the honest answer. A single chimney leak after 30 storm-free years is almost always a repair. We tell people the truth either way — including walking away from quotes we don't think are justified.
Local angle
On Burnley Victorian terraces, nail-sick slate at 110+ years is reaching end-of-life as a cohort. On 1990s Blackpool estates, single tile slippages after a storm are almost always a repair.
Will my insurance pay for a re-roof?
Insurance covers sudden, accidental damage (storm, fire, impact). Wear-and-tear failure isn't covered — but storm damage on top of an already-tired roof often is. We help document the difference.