Roof repairs vary enormously in cost depending on what needs fixing, how accessible the roof is, and the materials involved. This guide covers the most common roofing jobs, typical UK price ranges, and the factors that push costs up or down.
UK Roof Repair Cost Summary
| Type of Repair | Typical Cost Range | Time |
|---|---|---|
| Slipped or missing tiles (small area) | £150 – £300 | 1–2 hrs |
| Slipped or missing tiles (larger area) | £300 – £600 | 2–4 hrs |
| Chimney repointing | £250 – £500 | 2–4 hrs |
| Chimney flashing repair | £150 – £400 | 1–3 hrs |
| Chimney cap / pot replacement | £100 – £300 | 1–2 hrs |
| Lead flashing repair | £150 – £500 | 1–4 hrs |
| Ridge tile repointing (half roof) | £300 – £700 | 3–6 hrs |
| Flat roof patch repair | £200 – £500 | 2–4 hrs |
| Full flat roof replacement (garage) | £800 – £2,500 | 1–2 days |
| Guttering repair / reseal | £80 – £200 | 1–2 hrs |
| Full guttering replacement (semi) | £400 – £900 | 4–8 hrs |
| Roof inspection / survey | £100 – £250 | 1–2 hrs |
Cost by Repair Type
Slipped and Missing Tiles
The most common roofing job in the UK. Individual tiles or slates slip when the nail holding them corrodes or breaks — most common on roofs over 40 years old. A single slipped tile typically costs £150–£200 to re-fix including scaffolding or ladder time. If several tiles have slipped across a section, expect £250–£600 depending on the area.
Replacing broken tiles (as opposed to re-fixing slipped ones) costs slightly more because matching materials need to be sourced. Clay and natural slate are more expensive than concrete tiles.
Chimney Repairs
Chimneys take a lot of weather exposure and are one of the most common sources of leaks. The main jobs are:
- Repointing: The mortar between the bricks erodes over time. Repointing a full chimney stack costs £250–£500.
- Flashing repair: The lead seal where the chimney meets the roof. If this fails, water pours in. Repair costs £150–£400 depending on whether flashing needs replacing or just re-sealing.
- Chimney cap / cowl: A missing or cracked cap lets rain in directly. Replacement typically costs £100–£300 including fitting.
Flat Roof Repairs
Flat roofs have a shorter lifespan than pitched roofs (10–25 years vs 50+ years) and require more regular attention. A patch repair to a blistered or split felt section costs £200–£500. If the roof is at or past end of life, a full replacement is usually better value — costs vary widely by size:
- Garage (15–20m²): £800–£1,800
- House extension (25–40m²): £1,500–£3,500
- Full house flat roof (60m²+): £3,500–£7,000+
Lead Flashing
Lead flashing seals the joint between the roof and vertical walls (chimneys, dormer windows, abutments). When it fails or lifts, water runs directly behind the slates. Repair costs £150–£500; full replacement of a chimney's flashing set is typically £300–£700.
Ridge and Hip Tiles
The ridge tiles at the very top of a pitched roof are bedded in mortar. Over time the mortar erodes and tiles loosen — a serious safety hazard as they can fall. Repointing a full ridge on a semi-detached house costs £300–£700. Dry-fix systems (which replace mortar and last much longer) cost £500–£1,200 but don't need redoing every 10–15 years.
What Affects the Final Cost?
- Access: Ground-level ladders cost much less than scaffolding. If scaffolding is required (typically for roofs over 5m or for larger flat roof jobs), add £500–£1,500 to any estimate.
- Materials: Natural slate is significantly more expensive than concrete tiles. Lead flashing is dearer than zinc alternatives.
- Location: Labour costs are higher in London and the South East than the Midlands and North.
- Urgency: Emergency call-outs may carry a premium of £50–£150 over standard pricing.
- VAT: Check whether your quote includes VAT. Most sole traders work below the VAT threshold, but larger companies will add 20%.
How to Get the Best Price
- Get at least two written quotes before committing
- Ask for itemised quotes (labour vs materials) so you can compare properly
- Check the roofer is insured — ask to see their public liability certificate
- Avoid paying a large deposit upfront — 10–30% is normal; 50%+ is a red flag
- Get any guarantee in writing
Repair vs Replacement: Which Is Right?
A repair makes sense when damage is localised and the rest of the roof is in good condition. Replacement is the better economic choice when:
- More than 25–30% of tiles are damaged or failing
- The roof deck (the structural wood underneath) is rotten or sagging
- The roof is 50+ years old and has had repeated leak problems
- Repair costs approach 50% of replacement cost
A good roofer will inspect the full roof before quoting, not just the obvious problem area. Be wary of anyone who quotes without getting on the roof.
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Request a free quote →Frequently Asked Questions
Is roof repair VAT-exempt?
No — roof repairs are not zero-rated for VAT. However, many smaller roofing contractors are not VAT-registered (the threshold is currently £90,000 turnover), which means their prices won't include VAT. Always check whether the quote you're given includes or excludes VAT.
Can I claim roof repair on home insurance?
It depends. Storm damage is typically covered by buildings insurance; wear and tear (most tile slippage, mortar erosion) is not. Contact your insurer before authorising repairs if you think damage may be storm-related — getting work done before making a claim can complicate matters.
How long should a roof repair last?
A quality tile repair using correctly matched materials should last 20–30 years. Lead flashing properly dressed and pointed should last 40+ years. Flat roof repairs depend heavily on the material — felt typically lasts 10–15 years, GRP and EPDM rubber 20–30+ years.