A new roof in the UK typically costs £4,000 to £19,000, with an average of around £7,000 (excluding VAT). That works out at roughly £120–£275 per m² for a pitched roof. For a typical 3 bed semi with concrete tiles, expect around £6,500–£11,500, while a flat roof replacement usually costs £2,800–£7,500.
This guide explains how much a new roof costs by house type, roof type and material, the extra costs to plan for, and how much a flat roof replacement costs in 2026.
New Roof Cost UK 2026: Quick Summary
| Roof type | Typical total cost | Cost per m² |
|---|---|---|
| Hip roof (around 64m²) | £9,250 – £18,000 | £145 – £285 |
| Gable roof (around 64m²) | £7,000 – £16,250 | £110 – £260 |
| Flat roof (around 32m²) | £2,800 – £7,500 | £45 – £120 |
| New roof structure (timbers and covering) | £6,500 – £20,000 | – |
Figures are taken from published UK cost guides (sources listed at the end). The table above excludes VAT. Prices vary by location, roof size, pitch, access and materials. Use them as a guide, not a quote.
How Much Does a New Roof Cost for a 3 Bed Semi?
A new roof on a typical 3 bed semi-detached house (around 65–75m² of roof) costs about £6,500–£11,500 with concrete tiles, £9,500–£15,500 with clay tiles, and £11,000–£18,500 with natural slate. Most 3 bed semi re-roofs take around 5 to 7 days on site.
New Roof Cost by House Type
| Property | Concrete tiles | Clay tiles | Natural slate |
|---|---|---|---|
| 2 bed terrace (around 50–60m²) | £5,500 – £9,000 | £7,500 – £12,500 | £9,500 – £15,500 |
| 3 bed semi (around 65–75m²) | £6,500 – £11,500 | £9,500 – £15,500 | £11,000 – £18,500 |
| Bungalow (around 75–90m²) | £7,500 – £12,000 | £10,500 – £16,500 | £12,500 – £20,000 |
| 4 bed detached (around 100–120m²) | £11,500 – £17,500 | £14,500 – £22,000 | £18,000 – £28,000 |
Fully installed 2026 guide prices from BestBuilders. The source is not consistent on whether VAT is included, so always ask for a quote that shows VAT separately. Complex roofs with valleys, dormers or hips can add 15–30%.
New Roof Cost per m² by Material
| Roof covering | Supply and fit per m² | Typical lifespan |
|---|---|---|
| Concrete interlocking tiles | £85 – £140 | 25 – 40 years |
| Fibre-cement slate | £110 – £160 | – |
| Clay tiles | £120 – £185 | 25 – 40 years |
| Natural slate | £150 – £240 | Longest-lasting option |
| Metal (standing seam) | Whole roof £6,000 – £10,000 | 50 – 100 years |
Per m² rates exclude scaffolding and disposal. Small roofs under about 30m² usually sit at the top of these ranges.
How Much Does a Flat Roof Replacement Cost in the UK?
A flat roof replacement typically costs £2,800–£7,500, or around £50–£120 per m² (excluding VAT), depending on the material. A small flat roof of around 25m², such as a garage or single-storey extension, usually costs about £1,500–£4,500.
| Flat roof material | Cost per m² (ex VAT) | Typical lifespan |
|---|---|---|
| Felt (torch-on bitumen) | £50 – £80 | 15 – 20 years |
| Asphalt | £50 – £70 | 20 – 30 years |
| EPDM rubber | £80 – £100 | 30 – 50 years |
| GRP fibreglass | £95 – £120 | up to 30 years |
| Green roof | £75 – £110 | – |
Converting a flat roof to a pitched roof costs around £3,000–£4,500 extra. A felt flat roof on a small extension can often be replaced in 1 to 3 days.
Extra Costs When Replacing a Roof
| Item | Typical cost |
|---|---|
| Scaffolding (3 bed semi, 2–3 weeks) | £900 – £1,800 |
| Scaffolding (detached or multi-lift) | £1,500 – £3,500 |
| Stripping the old roof | £1,000 – £2,500 |
| Skip hire (6–8 yard) | around £300 – £320 per week |
| Replacing rotten timbers | £500 – £1,500 |
| Asbestos removal (e.g. garage roof) | £500 – £1,000 |
| New gutters | £400 – £700 |
| Roof inspection | £150 – £250 |
You may also need to budget for new fascias and soffits, loft insulation, removing and refitting solar panels, and chimney or lead work.
Roofer Labour Costs and Day Rates
Roofers in the UK typically charge around £280–£360 per day for larger jobs, or £20–£45 per hour. Rates are higher in London and the South East, where hourly rates of £40–£60 are common. On most re-roofs, labour is included in the total price rather than charged separately.
What Affects the Cost of a New Roof?
- Roof size and shape: hips, valleys, dormers and steep pitches take longer and need more materials.
- Material: concrete tiles are cheapest, clay tiles cost more, and natural slate is the most expensive.
- Condition of the timbers: rotten rafters, battens or decking add cost.
- Access: taller houses, terraces with limited access and busy roads increase scaffolding costs.
- Location: London can be around 25% more expensive than the Midlands.
- Extras: chimneys, rooflights, leadwork, gutters, fascias and solar panels.
Do You Need Planning Permission or Building Regulations for a New Roof?
Planning permission is usually not needed if you replace the roof with a similar design and materials. You may need permission if you change the shape or height of the roof, or if the property is listed or in a conservation area.
Building Regulations approval is usually needed if you replace more than 25% of a pitched roof area, or more than 50% of a flat roof, or if you change the insulation or ventilation. When re-roofing, the roof or loft must normally be insulated to current standards. A bat survey may also be needed in some cases. For larger changes, you may need building regulations drawings.
How Long Does a New Roof Take?
A new roof on a typical house usually takes around 4 to 12 days, depending on the size of the house and the material. A 3 bed semi with concrete tiles takes around 5 to 7 days, slate takes longer, and a small flat roof can take just 1 to 3 days.
How to Save Money on a New Roof
- Get at least three itemised quotes that show labour, materials, scaffolding, waste removal and VAT separately.
- Plan other roof work, such as gutters, fascias or solar panels, at the same time to share scaffolding costs.
- Choose concrete tiles over clay or slate where planning rules allow.
- Avoid winter, when bad weather can cause delays.
- Check whether a repair would do the job before replacing the whole roof.
How to Get an Accurate Roofing Price
Average prices are useful for budgeting, but the true cost of a roof depends on its measured area, pitch, details and materials. At Nextron Estimating, we prepare detailed roofing take-offs and estimates for UK roofers, builders and contractors.
- Roofing estimating services: accurate roof areas, materials and labour, priced line by line
- Quantity take-off services: measured quantities from your drawings
- Building regulations drawings: for re-roofing or roof alterations
Planning other projects? Read our loft conversion cost guide, house extension cost guide and garage conversion cost guide.
Frequently Asked Questions
How much does a new roof cost in the UK?
Most UK homeowners spend between £4,000 and £19,000 on a new roof, with an average of around £7,000 excluding VAT.
How much does a new roof cost for a 3 bed semi?
Around £6,500–£11,500 with concrete tiles, £9,500–£15,500 with clay tiles and £11,000–£18,500 with natural slate.
How much does a flat roof replacement cost in the UK?
Usually £2,800–£7,500, or about £50–£120 per m² depending on whether you choose felt, EPDM rubber or GRP fibreglass.
How much does a new roof cost per m²?
Around £120–£275 per m² for a pitched roof, and around £45–£120 per m² for a flat roof, excluding VAT.
How much does scaffolding cost for a new roof?
Typically £900–£1,800 for a 3 bed semi, and £1,500–£3,500 for a detached or larger house.
Do I need planning permission for a new roof?
Usually not, if you use a similar design and materials. Building Regulations approval is usually needed if you replace more than a quarter of a pitched roof.
How long does a new roof last?
Concrete and clay tiles typically last 25–40 years, natural slate and metal roofs last much longer, and flat roofs last 15–50 years depending on the material.
Sources
- Checkatrade: Roof replacement cost guide
- Checkatrade: Flat roof replacement costs
- MyBuilder: New roof cost guide
- BestBuilders: Roof replacement cost UK
Get a Roofing Estimate
Send us your drawings or roof plans and we will prepare a clear, itemised roofing estimate. If you want to see our format first, ask for a free sample estimate.
Call us on +44 7576 532125, or email info@nextronestimating.co.uk.
