Roof Repair Cost Calculator
On a small roof repair the scaffolding often costs more than the work. This prices both separately so you can see where the money actually goes.
Open the calculator →Price a roof repair in 30 seconds
4 steps. Covers the repair itself, roof height, access method and region.
How this calculator works
Access is separated out deliberately, because on roof work it is often the larger number. A £275 tile repair on a two-storey house can carry £900 of scaffolding — and that scaffold costs the same whether you fix three tiles or thirty.
The practical consequence: if the roof is going up anyway, get everything roof-level priced in the same visit. Ridge work, flashings, gutter clearing and bird proofing all become far cheaper bundled than done separately six months apart. The other saving people miss is the survey itself: if a roofer is already up there for a repair, a few minutes spent looking at the underlay, the flashings and the chimney flaunching costs nothing and tells you whether you are facing years of small fixes or a re-roof coming down the line. Two jobs sit next to a general roof repair often enough to price up front. Flat sections — a rear extension, a dormer, a garage — fail on a different clock to a pitched roof and are usually recovered rather than patched, which our flat roof replacement calculator prices. And the chimney is where a surprising share of ‘roof’ leaks actually begin, through cracked flaunching or perished flashing, so if yours looks suspect the chimney repair cost guide is worth a look while the scaffold is still up.
Roof repair costs by job (2026)
| Repair | Typical 2026 cost | Notes |
|---|---|---|
| Slipped or broken tiles | £150–£400 | The most common call-out |
| Ridge re-bed or re-point | £450–£1,200 | Along the ridge run |
| Flashing or lead renewal | £250–£700 | A very common leak source |
| Flat roof patch | £150–£600 | Localised repair |
| Flat roof re-cover (~20m²) | £1,500–£3,500 | Better than a third patch |
| Full re-roof | £5,500–£15,000+ | When repairs stop being economic |
Figures match our roof repair cost guide. Scaffolding is extra and frequently the largest line on a small job.
Roof repair calculator FAQs
Past about 40 years, or when you are on your third repair in a few years. Recurring faults across different parts of the roof usually mean the underlay and battens have gone — and those are not visible from the ground, which is why a roof can look sound and still be failing. A useful rule of thumb: once the repairs you have paid for over the last three years approach a quarter of the price of a full re-roof, you are usually better putting that money toward the re-roof and getting a fresh guarantee on the whole covering.
Because it is priced on erection and hire, not on the work underneath. That is why bundling matters: if the scaffold is up, get the ridge, the flashings, the gutters and any bird proofing done in the same visit rather than paying to put it back up later.
Be very careful. Unsolicited callers claiming to have "noticed damage" are the single most common roofing scam in the UK. Never agree to work on the doorstep, never pay cash up front, and get two or three written quotes from roofers you approached yourself.
For simple work, often yes — many will quote from clear photos taken from the ground or a neighbouring window. For anything structural or where a leak has not been traced, insist on someone actually going up; a quote for an unlocated leak is guesswork. Ask the quote to name the specific repair and to say what happens if the leak turns out to be somewhere else once they are up there, so a hopeful diagnosis from the ground does not quietly become an open-ended bill.
Related cost guides
- Roof repair cost guide — every repair priced
- Roof replacement calculator — when repair stops being economic
- Scaffolding calculator — price the access separately
- Roof replacement cost guide — every roofing job compared
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