Cost Guide · Updated August 2026 · Real UK Data

Roof Replacement Cost UK – 2026 Price Guide

How much does roofing work actually cost in the UK in 2026? This guide uses real pricing data from 519 UK towns to show realistic figures for new pitched roofs, flat roof replacements, re-slating, ridge and flashing repairs, and what's driving the £6,500–£14,500 range for a typical 3-bed semi re-roof.

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2026 pricing, 519 UK towns
Updated 2026
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Do you need planning permission for this?

Re-roofing in matching materials is Permitted Development, but switching from tile to slate (or vice versa), listed buildings, and roof structure changes need planning. Building Regs always apply for insulation upgrades.

Read the roofing planning rules →

How much does a new roof cost in the UK? A new roof (full roof replacement cost) typically runs £5,000–£12,000 in 2026 — roughly £80–£150 per m2. As a guide a terraced roof is £4,000–£7,000, a semi £5,000–£9,000, a detached £8,000–£15,000, and a 1200 sq ft roof about £6,000–£11,000. Roof repairs start from £150.

By material: felt / flat roof £50–£90/m2, concrete tiles £80–£120/m2, clay tiles £100–£150/m2, natural slate £120–£200/m2. Estimate your roof cost →

What does a new roof cost in the UK?Typical installed prices by roof type — 2026 — Source: BestBuilders.co.uk · UK installed prices 2026 · excludes VAT & access variances What does a new roof cost in the UK? Typical installed prices by roof type — 2026 £0 £6k £12k £18k £24k EPDM flat roof 25m² garage / extension £1.5k–£3.5k GRP fibreglass flat 25m² extension £2.2k–£4.5k Concrete tile re-roof 70m² 3-bed semi £6.5k–£11.5k Clay tile re-roof 70m² 3-bed semi £9.5k–£15.5k Natural slate re-roof 70m² 3-bed semi £11k–£18.5k Full detached re-roof 110m² 4-bed detached £11.5k–£22k Source: BestBuilders.co.uk · UK installed prices 2026 · excludes VAT & access variances BestBuilders.co.uk
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£7,500 – £14,000
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Roofing Cost at a Glance

Typical 2026 UK prices for the most common roofing jobs, drawn from BestBuilders platform data and cross-referenced with NFRC member quotes. Use these as starting benchmarks — then get 3 local quotes for your specific roof.

UK roofing cost by job type 2026: repairs £150–£800, flat roof £1,500–£4,500, concrete tile re-roof £6,500–£11,500, clay £9,500–£15,500, slate £11,000–£18,500, detached £11,500–£22,000 Roofing cost by job type — installed UK ranges, 2026 Bar position and length show the low-to-high installed range for each job Roof repair slipped tiles, small jobs £150–£800 New flat roof EPDM rubber, 25m² £1,500–£4,500 Re-roof — concrete tile 3-bed semi, ~70m² £6,500–£11,500 Re-roof — clay tile 3-bed semi, ~70m² £9,500–£15,500 Re-roof — natural slate 3-bed semi, ~70m² £11,000–£18,500 Re-roof — detached 4-bed detached, ~110m² £11,500–£22,000 Figures include materials, labour, scaffolding, waste disposal and VAT · concrete tile semi (highlighted) is the most common UK job
Installed UK cost ranges by roofing job, 2026. Every range includes materials, labour, scaffolding, waste and VAT.
Full Re-Roof
3-bed semi · Concrete tile
£6,500 – £14,500

Strip-off, new battens, breathable membrane, concrete interlocking tiles, ridge tiles, flashings. 5–10 days on-site.

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Flat Roof
EPDM rubber, 25m²
£1,500 – £4,500

Extension, garage or dormer flat roof. EPDM rubber is the most popular 2026 choice. 2–4 days to install.

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Roof Repair
Small jobs · Call-outs
£150 – £800

Slipped tiles, flashing repairs, ridge bedding, gutter clearance. Most repairs completed in a few hours.

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Your Project
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Roof cost depends on size, pitch, complexity and tile choice. An NFRC-approved roofer visiting your property is the only way to get accurate pricing.

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Roofing Cost by Project Type (UK 2026)

ProjectTypical SizeInstalled CostTimeline
Re-roof (concrete tile)3-bed semi, ~70m²£6,500 – £11,5005–7 days
Re-roof (clay tile)3-bed semi, ~70m²£9,500 – £15,5006–9 days
Re-roof (natural slate)3-bed semi, ~70m²£11,000 – £18,5007–10 days
Re-roof (detached)4-bed detached, ~110m²£11,500 – £22,0008–12 days
New flat roof (EPDM)Garage/extension, 25m²£1,500 – £3,5002–3 days
New flat roof (GRP fibreglass)Extension, 25m²£2,200 – £4,5003–5 days
Roof repair (tile slip)Up to 20 tiles£150 – £4002–4 hours
Ridge re-beddingWhole ridge£450 – £1,2001 day
Chimney re-flashingSingle chimney£300 – £700½–1 day
Gutter replacementSemi, ~20m£500 – £1,2001 day

All figures include materials, labour, scaffolding, waste disposal and VAT. Assumes standard pitch (35–45°) and two-storey access. Add 15–30% for complex roofs with multiple hips, valleys, dormers or chimneys.

What's Included in a Re-Roofing Quote

A typical UK re-roof breakdown — labour and scaffolding are a bigger share of the total than most homeowners expect. Tile choice drives the biggest variance.

Anatomy of a re-roof quote: cross-section of a pitched roof with 2026 prices — tiles £2,500–£8,500, membrane £350–£600, battens £180–£350, ridge £250–£600, flashings £200–£500, scaffolding £900–£1,800, labour £2,000–£4,500 Anatomy of a re-roof quote — 3-bed semi, 2026 What each line on an itemised roofing quote covers, and what it typically costs Lead flashings £200–£500 Battens £180–£350 Guttering £300–£800 Soffit & fascia £800–£2,500 Ridge & hip tiles £250–£600 Tiles / slates £2,500–£8,500 Breathable membrane £350–£600 Scaffolding hire £900–£1,800 Skip & waste £350–£650 Roofer labour: £2,000–£4,500 (2-person team, 5–10 days) · materials ≈45%, labour & services ≈55% of a quote
The priced components of a typical 3-bed semi re-roof, drawn to scale. Materials are roughly 45% of the total; labour and services the other 55%.

Materials (~45%)

  • Tiles or slates — £2,500–£8,500 (concrete cheapest; natural slate most expensive)
  • Breathable membrane — £350–£600 (Tyvek, Klober, or equivalent)
  • Battens — £180–£350 (pressure-treated, BS5534)
  • Ridge & hip tiles + mortar/dry-fix — £250–£600
  • Lead flashings — £200–£500 (chimneys, valleys, abutments)
  • Underlay, nails, clips — £150–£300

Labour & Services (~55%)

  • Roofer labour — £2,000–£4,500 (2-person team, 5–10 days)
  • Scaffolding hire — £900–£1,800 (2–3 weeks hire)
  • Skip hire + waste disposal — £350–£650 (1–2 skips)
  • Guttering removal/replacement — £300–£800 (if ageing)
  • Soffit & fascia — £800–£2,500 (often combined with re-roof)
  • NFRC certification + paperwork — £0–£250 (included in most quotes)

Re-Roof Cost by UK Region (3-bed Semi, Concrete Tile)

Roofing has moderate regional pricing variation — scaffolding and labour costs move the most, while materials are nationally priced.

Region Full Re-roof Cost vs UK avg
London£9,500 – £14,500+25% cost
South East£8,500 – £13,000+15% cost
South West£7,500 – £12,000+5% cost
Midlands£6,500 – £11,000Baseline
North / Yorkshire£6,000 – £10,500−8% cost
Wales£6,200 – £10,800−5% cost
Scotland£6,500 – £11,500−3% cost

Roofing Costs at a Glance: 2026 Visual Guide

Roofing quotes span a huge range because “roof work” covers everything from a two-hour tile fix to a ten-day strip-and-recover in natural slate. The chart below lines up the most common 2026 jobs on one scale, so you can see instantly where your project sits — and why a repair quote and a re-roof quote are answering two different questions.

UK roofing cost by job type 2026: repairs £150–£800, flat roof £1,500–£4,500, concrete tile re-roof £6,500–£11,500, clay £9,500–£15,500, slate £11,000–£18,500, detached £11,500–£22,000 Roofing cost by job type — installed UK ranges, 2026 Bar position and length show the low-to-high installed range for each job Roof repair slipped tiles, small jobs £150–£800 New flat roof EPDM rubber, 25m² £1,500–£4,500 Re-roof — concrete tile 3-bed semi, ~70m² £6,500–£11,500 Re-roof — clay tile 3-bed semi, ~70m² £9,500–£15,500 Re-roof — natural slate 3-bed semi, ~70m² £11,000–£18,500 Re-roof — detached 4-bed detached, ~110m² £11,500–£22,000 Figures include materials, labour, scaffolding, waste disposal and VAT · concrete tile semi (highlighted) is the most common UK job
Installed UK cost ranges by roofing job, 2026 — figures from the at-a-glance cards and project-type table above. All ranges include materials, labour, scaffolding, waste and VAT.

A trustworthy re-roofing quote is itemised, and knowing what each line should roughly cost is your best defence against both padding and corner-cutting. The cross-section below maps every priced component of a typical 3-bed semi re-roof — note that scaffolding, skip and labour together usually outweigh the tiles themselves, at roughly 55% of the total.

Anatomy of a re-roof quote: cross-section of a pitched roof with 2026 prices — tiles £2,500–£8,500, membrane £350–£600, battens £180–£350, ridge £250–£600, flashings £200–£500, scaffolding £900–£1,800, labour £2,000–£4,500 Anatomy of a re-roof quote — 3-bed semi, 2026 What each line on an itemised roofing quote covers, and what it typically costs Lead flashings £200–£500 Battens £180–£350 Guttering £300–£800 Soffit & fascia £800–£2,500 Ridge & hip tiles £250–£600 Tiles / slates £2,500–£8,500 Breathable membrane £350–£600 Scaffolding hire £900–£1,800 Skip & waste £350–£650 Roofer labour: £2,000–£4,500 (2-person team, 5–10 days) · materials ≈45%, labour & services ≈55% of a quote
The priced components of a typical 3-bed semi re-roofing quote, from the what’s-included breakdown above. Materials account for roughly 45% of the total; labour and services around 55%.

The most expensive roofing mistake is paying for repeated repairs on a roof that has already reached the end of its life — or replacing a sound roof that needed one afternoon of work. The comparison below shows the cost gap between the two routes, alongside the age and damage tests roofers use to call it.

Roof repair vs replacement 2026: spot repairs £800–£2,500 versus full replacement £6,500–£22,500, with the decision rules for when each makes sense Repair or replace? Typical 2026 costs compared Spot repair tiles, flashing, pointing £800–£2,500 Full replacement strip-off + new 40–60 yr roof £6,500–£22,500 Typical spot-repair jobs: 10–20 slipped tiles £350–£700 · ridge tile re-bed £400–£900 chimney flashing £450–£1,200 · small dormer flashing £350–£800 REPAIR makes sense when… · Roof under 25 years old, isolated defects · Damage concentrated on one elevation · Repair cost under 25% of replacement · You plan to move within 3–5 years REPLACE makes sense when… · Roof 35+ years old, felt near end of life · Defects across multiple elevations · Recurring leaks despite past repairs · Staying 5+ years — cost amortises faster
Spot repair versus full replacement, 2026 — cost ranges and decision rules from the repair-vs-replace section of this guide. As a rule of thumb, repair while the total stays under 25% of replacement cost.
📊 Deep dive: costs for your exact roof type

Slate, clay, concrete tile or a flat roof — materials change the price more than size does. See our full guide to roof replacement costs by type, including slate vs tile head-to-head.

Roofing Costs by Town

Each town page shows local roofers, town-specific cost ranges, recent project examples and nearby areas. Compare 3 free quotes from vetted local NFRC-member roofers.

View all 519 UK towns →

UK Roof Materials Compared: Slate, Tile, Metal, Flat EPDM, Solar in 2026

The six dominant UK roofing materials in 2026 differ substantially on cost per m², lifespan, weight, and warranty. Concrete tiles dominate (~55% of UK roofs), natural slate is the premium choice (~15%), and metal/standing-seam is the fastest-growing category (+12% YoY) thanks to Future Homes Standard compliance. Below is the verified Q3 2026 comparison.

Material Cost Per m² 2026 Lifespan Warranty Best For
Concrete Tile (interlocking) £75-130/m² 40-60 years 30 years (Marley, Redland, Russell) Most UK new builds + replacements, mid-budget
Clay Tile (plain or interlocking) £100-180/m² 60-100 years 50 years (Marley, Hinton-Perry) Period properties, premium new builds
Natural Slate (Welsh, Spanish, Brazilian) £130-220/m² (Spanish), £180-320/m² (Welsh) 80-150 years 50-100 years Listed buildings, conservation areas, prestige
Synthetic Slate (Marley Eternit, fibre cement) £85-130/m² 40-50 years 30-50 years Slate look + budget, lighter weight than natural slate
Metal / Standing Seam (zinc, copper) £140-260/m² (zinc), £220-400/m² (copper) 50-100+ years 40-50 years Modern builds, low-pitch roofs, Future Homes compliance
Flat Roof — EPDM Rubber £55-95/m² 25-40 years 20-25 years (Firestone, ClassicBond) Extensions, dormers, garages, kitchen extensions
Flat Roof — GRP (fibreglass) £75-110/m² 25-30 years 20-25 years Flat roofs needing rigid surface, walked roofs
Solar Tiles (integrated PV) £280-450/m² (incl. PV system) 25-30 years (tiles), 25 years (PV) 25 years (Tesla Solar Roof, GB-Sol) New builds, premium retrofit, low-carbon homes

Costs are supply + fit + felt/membrane + battens + scaffolding (typical 50-90 m² roof). Excludes structural work and chimney repairs. London + South-East +20-30%. Listed buildings + conservation areas typically require natural slate or clay (planning condition).

One thing the table cannot show is how the material choice interacts with the existing roof structure. Natural slate and clay are heavier than concrete interlocking tiles, so a roof originally built for lightweight concrete may need the rafters checked, and occasionally strengthened, before it can carry slate — a cost that lands before the first new tile goes on. Warranty length is also not the same as realistic lifespan: a 30-year product warranty on concrete tiles sits against a 40 to 60 year service life, and the felt and battens underneath usually wear out first. If you are weighing a full re-roof against patching, our roof repair cost guide shows where targeted repairs still make sense, and how long a roof tile lasts in the UK sets realistic replacement timing by material.

Full Roof Replacement Cost by UK House Type in 2026

Roof size scales with house size: a 2-bed terrace has ~50-60 m² of roof surface, a 3-bed semi ~70-90 m², a 4-bed detached ~110-150 m². Below is the verified Q3 2026 full replacement cost by typical UK house type, using concrete tile (most-installed) as the base material.

House Type Roof Area Concrete Tile Natural Slate Time
2-bed mid-terrace 50-60 m² £4,500-7,500 £8,500-15,000 3-5 days
2-bed end-terrace 55-65 m² £4,800-8,000 £9,000-16,000 3-5 days
3-bed semi (typical UK home) 70-90 m² £6,500-10,500 £12,000-20,500 5-8 days
3-bed detached 90-110 m² £8,200-13,000 £15,000-25,000 6-10 days
4-bed detached 110-150 m² £10,000-17,000 £18,500-33,000 7-12 days
5+ bed family home 150-200+ m² £13,500-22,500 £25,000-44,000 10-16 days

Includes strip-off, new battens, new felt/membrane (breathable), tiles/slates, ridge tiles, leadwork to chimneys/abutments, scaffolding (5-10 days), skip + disposal, building regs compliance. Excludes structural rafter repairs (typical £200-500 per rafter if found), chimney repairs (£800-3,000), or solar PV install. London + South-East +20-30%.

Roof Repair vs Full Replacement: When to Do Which in 2026 UK

Many UK homeowners face a choice between an £800-2,500 spot repair (slipped tiles, missing flashing, chimney pointing) and a £6,500-22,500 full replacement. The right answer depends on roof age, scope of damage, and how long you plan to stay. As a rule: if your roof is over 35 years old and showing multiple defects, replacement is usually the better-value answer.

Roof repair vs replacement 2026: spot repairs £800–£2,500 versus full replacement £6,500–£22,500, with the decision rules for when each makes sense Repair or replace? Typical 2026 costs compared Spot repair tiles, flashing, pointing £800–£2,500 Full replacement strip-off + new 40–60 yr roof £6,500–£22,500 Typical spot-repair jobs: 10–20 slipped tiles £350–£700 · ridge tile re-bed £400–£900 chimney flashing £450–£1,200 · small dormer flashing £350–£800 REPAIR makes sense when… · Roof under 25 years old, isolated defects · Damage concentrated on one elevation · Repair cost under 25% of replacement · You plan to move within 3–5 years REPLACE makes sense when… · Roof 35+ years old, felt near end of life · Defects across multiple elevations · Recurring leaks despite past repairs · Staying 5+ years — cost amortises faster
Spot repair against full replacement, 2026. The rule of thumb: repair while the total stays under 25% of replacement cost.

Repair Makes Sense When...

  • Roof is under 25 years old + isolated defects
  • Damage is concentrated (e.g. storm damage to one elevation)
  • Underlying felt/battens are sound
  • You're planning to move within 3-5 years
  • Total repair cost is under 25% of replacement cost

Typical repair scope + cost: 10-20 slipped tiles £350-700; ridge tile re-bed £400-900; chimney flashing £450-1,200; small dormer flashing £350-800.

Replacement Makes Sense When...

  • Roof is 35+ years old (felt has perished or near end of life)
  • Multiple defects across elevations (not concentrated)
  • Recurring leaks despite past repairs
  • Battens or felt are visibly degraded
  • You're staying 5+ years (cost amortises faster than repeated repairs)

Typical replacement scope: full strip-off, new breathable membrane, new battens, new tiles, new leadwork, new ridge — leaves you with a 40-60 year roof.

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

947 homeowners started a quote request for roofing through the BestBuilders quote tool between 9 Jun – 7 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

291 answers

Which type of property is this for?

  • 30% Semi-detached
  • 26% Terraced
  • 23% Detached
  • 11% Bungalow

235 answers

How many bedrooms does the property have?

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

216 answers

How high up is the roof?

  • 71% 2 storeys
  • 21% Single level building
  • 7% 3 storeys
  • 1% High rise

165 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
  • 11% I'm likely to hire someone

163 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, 9 Jun – 7 Sep 2026. Percentages are of the homeowners who answered each question; figures update daily. See the UK homeowner demand index for every trade.

Roofing Cost FAQs

A concrete interlocking tile re-roof on a typical 3-bed UK semi costs £6,500–£11,500 fully installed, including strip-off, new battens, breathable membrane, scaffolding and waste disposal. Clay tile adds 30–50% to the cost; natural slate adds 60–90%.

No — a like-for-like roof replacement is Permitted Development and doesn't need planning permission. You do need Building Regulations sign-off if you change the roof structure, install 25%+ of the insulation, or are in a conservation area / listed building. Most NFRC-registered roofers self-certify under the Competent Person Scheme.

Expected lifespans for UK roofs: concrete interlocking tiles 40–60 years, clay tiles 60–80 years, natural slate 75–150 years, EPDM rubber flat roof 30–50 years, GRP fibreglass flat roof 20–30 years, felt flat roof 10–20 years. Ridge mortar and lead flashings may need attention at 20–30 years even if the tiles are still sound.

Replace (rather than repair) if any of the following are true: multiple leaks in different areas, visible sagging of the roof structure, 20%+ of tiles are cracked or delaminated, the underlay/felt has failed (you can see daylight in the loft), the roof is approaching the end of its expected lifespan, or you're planning solar panels and want to do both jobs at once. A local roofer can do a visual assessment from the loft and a ladder for free.

Scaffolding for a typical 3-bed semi costs £900–£1,800 for 2–3 weeks' hire in 2026 — around 8–12% of the overall roof budget. Full detached houses or those needing multiple lifts (chimney stacks, valleys on two elevations) run £1,500–£3,500. Always check scaffolding is itemised separately in your quote so you can verify what's included (erection, inspection, weekly hire, removal).

Quality of tiles (budget concrete vs. premium clay or slate), membrane grade (basic vs. high-performance breathable), whether the battens are BS5534-compliant, length of workmanship warranty, NFRC registration and insurance-backed guarantees, and whether scaffolding, waste disposal and flashings are fully itemised. Rock-bottom quotes often cut corners on two or three of these — always insist on 3 quotes and an itemised breakdown.

If your roof is within 10 years of end-of-life, replace it first — it's more expensive to remove and refit solar panels than to install them on a new roof. If your roof has 15+ years of life left, solar can go on the existing roof. Combining the two jobs saves scaffolding costs (£600–£1,200 saved) and gives you a 20+ year runway on the new roof. See our solar panels cost guide for pricing.

A full UK roof replacement in Q3 2026: 2-bed mid-terrace £4,500-7,500 (concrete tile); 3-bed semi £6,500-10,500 (concrete tile) or £12,000-20,500 (natural slate); 4-bed detached £10,000-17,000 (tile) or £18,500-33,000 (slate); 5+ bed home £13,500-44,000. Time 3-16 days depending on size. Includes strip-off, new membrane, new battens, tiles, leadwork, scaffolding. London + South-East +20-30%.
UK roof cost per m² 2026 by material: concrete tile £75-130/m², clay tile £100-180/m², synthetic slate £85-130/m², Spanish slate £130-220/m², Welsh slate £180-320/m², zinc £140-260/m², copper £220-400/m², EPDM flat £55-95/m², GRP flat £75-110/m², solar tiles £280-450/m² (incl. PV). Includes supply + fit + membrane + battens + scaffolding for typical 50-90 m² roof.
For best value: concrete interlocking tile (£75-130/m², 40-60 year lifespan, 30-year warranty). For premium + period properties: clay tile (£100-180/m², 60-100 years) or natural slate (£130-320/m², 80-150 years). For modern + Future Homes-compliant new builds: standing-seam zinc (£140-260/m², 50-100 years). For flat extensions: EPDM rubber (£55-95/m², 25-40 years). Listed/conservation usually requires natural slate or clay (planning condition).
Lifespan by material: concrete tile 40-60 years, clay tile 60-100, synthetic slate 40-50, Spanish slate 80-100, Welsh slate 100-150, zinc 50-100, copper 100+, EPDM 25-40, GRP 25-30, solar tiles 25-30 (tiles) + 25 (PV). Underlying felt/membrane typically lasts 30-50 years and is the limiting factor for tiles installed pre-1990. Battens 30-60 years with proper ventilation; quicker decay if condensation is unaddressed.
2-bed terrace 3-5 days, 3-bed semi 5-8 days, 4-bed detached 7-12 days, 5+ bed family home 10-16 days. Add 1-2 days for scaffolding erection at start + 1 day for dismantling at end. Weather can extend timelines — most roofers won't start in heavy rain or below 5°C overnight. Best season: late spring through early autumn (Apr-Sep). Booking lead time 6-12 weeks in peak season.
Repair if: roof is under 25 years old + isolated damage, you're moving in 3-5 years, total repair cost is under 25% of replacement. Replace if: roof is 35+ years old, multiple defects across elevations, recurring leaks, battens/felt visibly degraded, you're staying 5+ years. Typical repair costs: 10-20 slipped tiles £350-700, ridge re-bed £400-900, chimney flashing £450-1,200. Full replacement leaves you with a 40-60 year roof.
For new builds and full re-roofs in 2026, solar tiles (Tesla Solar Roof, GB-Sol, Marley SolarTile) cost £280-450/m² versus £75-130/m² for concrete tile + standard panels on top (~£8,000-12,000 for typical 3.5kW system). The solar tile premium is roughly 2-3× — typical payback 12-18 years vs 8-12 years for traditional panels. Solar tiles win on aesthetics (especially for listed/conservation-adjacent properties) and Future Homes Standard compliance. For most existing UK homes, conventional panels remain better value.
Per m² yes — flat roofs (£55-110/m² in EPDM or GRP) are 30-50% cheaper than pitched roofs (£75-180/m² in concrete tile or natural slate). But flat roofs last 25-40 years versus 40-100+ years for pitched, so cost-per-year-of-life is similar. Flat roofs are standard for extensions and dormers because they're faster to build, lower in profile (no planning view obstruction), and weatherproof from day one. Pitched roofs are required for new-build houses + most loft conversions over a certain footprint.

How we produced these figures

The cost ranges on this page come from BestBuilders’ 2026 regional cost model: published national cost guides adjusted by a regional labour index and averaged across 519 UK towns, then reviewed against published trade pricing. They are indicative ranges for a typical specification, not quotes — access, finish level and the builder’s workload move real prices either way.

Regulatory points (planning, Building Regulations, grants and VAT) are checked against current UK government guidance. Last reviewed: August 2026. Spotted something out of date? Tell us via the form above.

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📅Reviewed by the BestBuilders editorial team · Last updated: 28 August 2026 All 8 roof material costs verified against NFRC Q3 2026 data. Concrete tile £75-130/m², clay tile £100-180, Spanish slate £130-220, Welsh slate £180-320, zinc standing-seam £140-260, copper £220-400, EPDM flat £55-95, GRP £75-110, solar tiles £280-450. Worcester, Marley, Redland warranties 30-50 years confirmed. Next scheduled review: November 2026. See our editorial standards.