🧮 Interactive Calculator · Updated August 2026 · Real UK Data

Roof Cost Calculator UK

Get a 2026 UK roof replacement cost estimate in 30 seconds. Pitched or flat, by material, roof size, scaffolding and region. Concrete tile, clay, natural slate, metal, EPDM, GRP — NFRC-approved supply-and-fit rates. No email required.

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Roof replacement costs in the UK (2026)Typical installed prices by option — 2026 — Source: BestBuilders.co.uk · typical UK prices 2026 · excludes VAT & access variances Roof replacement costs in the UK (2026) Typical installed prices by option — 2026 £0 £6k £12k £19k £25k Concrete tile (pitched) 80 m² roof £8k–£11.2k Clay tile (pitched) 80 m² roof £10.3k–£14.5k Natural slate (pitched) 80 m² roof £14.6k–£20.6k EPDM rubber (flat) 20 m² garage £1.7k–£2.3k Source: BestBuilders.co.uk · typical UK prices 2026 · excludes VAT & access variances BestBuilders.co.uk
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Estimate Your Roof Cost in 30 Seconds

4 steps. Covers strip-off, breathable membrane, battens, fascias, the new surface, labour, skip and VAT. Scaffolding is added separately where needed.

Methodology

How This Calculator Works

Our roof calculator combines material, roof area, scaffolding and region with real 2026 UK supply-and-fit pricing from NFRC-approved roofers across our 519-town database.

Material Rates (per m², fitted)

  • Concrete tiles — £120/m² (cheapest pitched)
  • Clay tiles — £155/m² · Synthetic slate — £150/m²
  • Natural slate — £220/m² (premium, 100+ yr)
  • Metal standing-seam — £180/m²
  • Felt £75 · EPDM £100 · GRP £115/m² (flat)

Includes strip-off, breathable membrane, battens, surface, labour, skip and VAT.

Scaffolding & Regional Multipliers

  • Scaffolding +£1,500 typical (£900–£2,500 by height/access)
  • London 1.27× · South East 1.13× · South West 1.04×
  • East of England 1.07× · Midlands 1.00× (baseline)
  • North West 0.94× · North / Yorkshire 0.93× · Wales 0.93×
  • Scotland 0.96× · NI 0.88×

Low/high band reflects a ±17% spread for access, pitch complexity and detailing. A real quote follows a survey.

Typical Roof Replacement Costs (2026)

Supply & fit incl. strip-off, membrane, battens, labour, skip & VAT, Midlands baseline (±17%). Scaffolding priced separately (+£1,500 typical).

Roof type / materialTypical sizeCost range
Concrete tile (pitched)80 m²£7,970–£11,230
Clay tile (pitched)80 m²£10,290–£14,510
Natural slate (pitched)80 m²£14,610–£20,590
EPDM rubber (flat, garage)20 m²£1,660–£2,340

These figures power the calculator above — enter your own spec for a tailored estimate. For the full breakdown, read our complete cost guide.

Roof Replacement Costs at a Glance: 2026 Visual Guide

Supply-and-Fit Cost per m² by Roofing Material

Material choice is the single biggest lever on a re-roofing quote. Concrete tile remains the workhorse of British housing at around £120/m² supply and fit, while natural slate — the longest-lasting covering at 100+ years — runs to roughly £220/m², nearly double. Flat-roof coverings price lower per square metre, and every rate below already includes strip-off, breathable membrane, battens, labour, skip and VAT.

Bar chart of 2026 UK roof cost per square metre supply and fit by material: concrete tile 120 pounds, synthetic slate 150, clay 155, metal 180, natural slate 220; flat roofs: felt 75, EPDM 100, GRP 115PITCHED ROOFSConcrete tilesMost popular£120/m²Synthetic slate£150/m²Clay tiles£155/m²Metal standing-seam£180/m²Natural slate£220/m²FLAT ROOFSFelt (3-layer)£75/m²EPDM rubber£100/m²GRP fibreglass£115/m²£0£50£100£150£200Supply & fit rate, £ per m² (2026, Midlands baseline, incl. VAT)
Typical 2026 UK supply-and-fit rates per m², Midlands baseline (±17% for access, pitch complexity and detailing). Source: BestBuilders 519-town cost database, NFRC-approved rates.

What a Re-Roof Actually Replaces: Pitched Roof Anatomy

A full re-roof strips the covering back to the rafters, then rebuilds the weatherproof sandwich: a breathable membrane draped over the timbers, treated battens fixed through it, and the tiles or slates hung on top, finished with a dry-fixed ridge — mortar bedding alone no longer complies with BS 5534. Fascias, soffits and gutter renewal are often priced as extras, so check your quote itemises them.

Labelled cross-section of a pitched roof showing rafters, breathable membrane, battens, tiles, dry-fix ridge, fascia board, soffit and gutter - the parts a UK re-roof quote coversLoft spaceRidge (dry-fix)Breathable membraneBattensTiles or slatesRaftersGutterSoffitFascia board
Cross-section of a typical UK pitched roof. The cutaway slope shows the layers renewed in a full strip-and-recover re-roof, from rafters out to the tiles.

Where the Money Goes on a 3-Bed Semi (80m²)

For a typical 80m² three-bed semi, the calculator’s £120/m² concrete-tile rate works out at £9,600, splitting roughly 45% materials, 40% labour and 15% prep (strip-off, membrane, battens and skip). Scaffolding is always its own line — typically £1,500, ranging £900–£2,500 with height and access — taking a realistic all-in figure to about £11,100. Clay and natural slate lift the materials block hardest.

Stacked bar chart: total 2026 re-roof cost for an 80 square metre 3-bed semi split into materials, labour, prep and scaffolding - concrete tile 11,100 pounds, clay 13,900, natural slate 19,1003-bed semi ≈ 80m² roof · Midlands baseline · includes VAT · scaffolding shown as its own blockConcrete tile£4,300£3,800£1,500£1,500£11,100Clay tile£6,100£4,400£1,900£1,500£13,900Natural slate£9,700£5,700£2,200£1,500£19,100Tiles & materialsLabourStrip-off, membrane, battens & skipScaffolding
Indicative cost build-up for an 80m² roof, Midlands baseline, including VAT. Totals match the calculator’s mid-point estimates (±17% band applies); scaffolding priced separately.
Regional Variation

Roof Replacement Cost by UK Region (2026)

The same job costs more in London and the South East and less in the North, Wales and Scotland, mostly through labour rates. The table shows BestBuilders’ 2026 regional cost model — national cost guides adjusted by a regional labour index and averaged across the towns in each region — for the main roof replacement job types.

RegionRoofingFlat RoofRoof Repair
North Scotland£2,000–£13,000£1,500–£11,000£1,000–£4,500
South West£2,000–£13,000£1,500–£11,000£1,000–£4,500
South Wales£2,000–£13,000£1,500–£11,000£1,000–£4,500
Merseyside & North Wales£2,000–£13,000£1,500–£11,000£1,000–£4,500
South Scotland£2,000–£13,000£1,500–£11,000£1,000–£4,500
Yorkshire£2,000–£14,000£1,500–£12,000£1,000–£5,000
North East£2,000–£13,000£1,500–£11,000£1,000–£4,500
North West£2,000–£14,000£1,500–£12,000£1,000–£5,000
South East£3,000–£18,000£2,500–£15,500£1,500–£6,500
Eastern£3,000–£16,000£2,500–£13,500£1,500–£5,500
West Midlands£3,000–£15,000£2,500–£13,000£1,500–£5,500
Southern£3,000–£16,000£2,500–£13,500£1,500–£5,500
East Midlands£3,000–£15,000£2,500–£13,000£1,500–£5,500
London£4,000–£20,000£3,000–£17,000£2,000–£7,000

Indicative ranges, not quotes: your own price depends on specification, access and the installer’s workload. Get three itemised quotes to pin your figure down.

First-hand demand data

What homeowners asked us for — Roofing (last 90 days)

951 homeowners started a quote request for roofing through the BestBuilders quote tool between 10 Jun – 8 Sep 2026, UK-wide. These are their own answers to the tool’s questions, aggregated and anonymised — not a model, not an estimate.

What type of roofing work do you need doing?

  • 70% Install a completely new roof
  • 20% Repair your current roof
  • 5% As recommended by the pro
  • 5% Other

293 answers

Which type of property is this for?

  • 30% Semi-detached
  • 25% Terraced
  • 23% Detached
  • 11% Bungalow

237 answers

How many bedrooms does the property have?

  • 48% 3 bedrooms
  • 22% 2 bedrooms
  • 19% 4 bedrooms
  • 6% 5 or more bedrooms

217 answers

How high up is the roof?

  • 71% 2 storeys
  • 20% Single level building
  • 7% 3 storeys
  • 1% High rise

166 answers

How likely are you to make a hiring decision?

  • 48% I'm planning and researching
  • 20% I'm ready to hire now
  • 18% I'm definitely going to hire someone
  • 12% I'm likely to hire someone

164 answers

Where the enquiries came from

  • 21% South West
  • 14% South East
  • 11% West Midlands
  • 11% North East
  • 9% North West

56 completed enquiries with a postcode we could place (ONS region)

Source: BestBuilders quote-tool answers, 10 Jun – 8 Sep 2026. Percentages are of the homeowners who answered each question; figures update daily. See the UK homeowner demand index for every trade.

Compare quotes

How to read your roofing quotes

The calculator gives you a budget; a written quote is where you protect yourself. Get three on the same specification, then read past the headline total to what each one itemises. A complete re-roof should separately list the strip-off and skip, the breathable membrane, new treated battens, the covering itself, and the dry-fixed ridge and verges that BS 5534 has required since 2015 — mortar-only bedding no longer complies. Fascias, soffits and guttering are frequently priced as extras, so check whether they’re in or out before you compare figures.

Scaffolding should be its own line rather than buried in a per-m² rate, and typically runs £900–£2,500 depending on height and access. Be wary of a quote that comes in well below the other two: it usually means membrane or batten renewal has been left out, or that the roofer intends to re-lay the old tiles. A few checks worth making before you sign:

  • Ask to see NFRC (National Federation of Roofing Contractors) membership and a written workmanship warranty, usually around 10 years.
  • Confirm who notifies the work to building control — most roofers self-certify through a competent-person scheme.
  • Check the membrane and batten spec is stated, not assumed, and that the ridge is mechanically fixed.

If your roof only has localised damage, a full replacement may be overkill — our roof repair cost guide covers when a patch or partial repair is the smarter spend, while the full roofing cost guide breaks the price down by every material.

Frequently Asked Questions

How much does a new roof cost in 2026?

Re-roofing is priced per square metre: concrete tiles run about £100-£140/m² in 2026, clay £130-£180/m² and natural slate £180-£260/m². A typical 80m² concrete-tile pitched roof is around £9,000-£11,500 including scaffolding.

How much is a flat roof?

Flat-roof coverings are cheaper per m²: felt about £55-£95/m², EPDM rubber £80-£120/m² and GRP fibreglass £90-£140/m². A 20m² garage roof in EPDM is roughly £1,800-£2,600.

Is scaffolding included?

Scaffolding is priced separately and typically adds £900-£2,500 depending on roof height and access. The calculator lets you add it on; it is required for almost all pitched-roof work above 2m.

Do I need Building Regulations for a new roof?

Re-roofing more than 25% of a single roof slope counts as renovating a thermal element under Part L, so you normally have to bring the roof’s insulation up to current standards at the same time, usually at rafter or ceiling level. The work is notifiable to building control, though most roofers self-certify through a competent-person scheme. Small like-for-like patch repairs to under a quarter of a slope generally do not need approval. A full strip-and-recover must also meet BS 5534, which since 2015 requires mechanically fixed (dry-fix) ridges and verges rather than mortar bedding alone.

How do I choose a roofer?

Look for NFRC (National Federation of Roofing Contractors) membership, get at least three quotes and check for a written workmanship warranty, typically 10 years. The estimate here covers strip-off, membrane, battens, surface, labour, skip and VAT.

How accurate is this roof cost calculator?

It gives a realistic guide range based on typical UK 2026 rates for your roof type, size and pitch, not a fixed quote. Actual prices depend on your roof's condition, chimney and valley details, felt and batten replacement, and access. A roofer's survey can move the figure up or down, so treat the estimate as a budgeting starting point.

What does the estimate include and exclude?

The figure covers stripping the old covering, new felt, battens, tiles or slates, ridge and labour. It usually excludes structural timber repairs, new fascias and soffits, gutter renewal, chimney work, VAT variations and building control fees. Hidden rot or deck damage found once the roof is stripped is priced separately, which is why survey quotes can differ.

Why is my real roofing quote higher than the calculator in London?

The tool uses national average rates. London and the South East carry higher labour costs, congestion and parking charges, plus tighter access on terraced streets that needs more scaffolding time. Steep, cut or listed roofs and slate rather than concrete tile also lift the price. Always compare two or three local quotes against the guide figure.
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Reviewed by the BestBuilders editorial team · Last updated: 5 September 2026 · Next scheduled review: December 2026 · See our editorial standards.