Instant
01 · Ask
Repair, patch or re-roof?
Stain on the ceiling, missing tile, sagging line? Describe what you see — the AI tells you whether it's a £150 repair or a £9k re-roof.
Fit polycarbonate roofing.
Multi-wall polycarbonate roof for porch, lean-to or carport — sized to span, sealed against condensation.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
20,000+UK homeowners
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Hire a roofer. Without the leak in year two.
Read the costs, the warning signs and the questions to ask. Then let Three local roofers quote on a like-for-like spec.
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02 · Read the brief
Walk in informed
Felt grades, breathable membranes, ridge tile bedding vs dry-fix, when scaffold is mandatory. Know what 'fully replaced' actually means.
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03 · Compare
Compare 3 roofer quotes
Three local roofers come back with itemised quotes — scaffold, materials, labour, warranty terms — so the cheapest isn't accidentally the worst.
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Top tips
Hiring a roofer, without the regret.
Four moves that separate a smooth job from a nightmare.
Insist on a written guarantee.
Quality roofers offer 10–25 year material guarantees backed by NFRC or insurance. Anything less than written-and-insured isn't a guarantee at all.
Get the scaffolding quoted separately.
Scaffolding can be 15–30% of the bill. Quoted separately, it's harder for a roofer to bury markup. Ask for the scaffolder's contact.
Never let them work in the rain.
Felt and slates laid wet age twice as fast. A roofer who pushes on through a downpour is cutting corners you'll pay for in five years.
Check the loft before they leave.
Daylight through the felt? Sagging rafters? Take photos in the loft on the morning of completion — your evidence if anything fails inside the guarantee.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and a typical week-by-week schedule.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Tile or slate repair (single)Inc. scaffold tower
£150–£400
Flat roof felt replacement
£80–£140/m²
Full re-roof (terraced)
£5.5k–£9k
Full re-roof (semi-detached)
£7k–£14k
New gutter installationPer side
£600–£1.5k
Chimney re-point + cap
£800–£2.5k
!
Quote spread is typically ± 18% — always get 3 quotes.
Timeline
Semi-detached full re-roof · week by week
Typical
4 phases · 3 wk
4 phases · 3 wk
W1
W2
W3
Scaffold erection
Strip + felt + battens
Tile + ridge + verge
Flashings + snags
!
Schedule slips on dependencies — pad each phase by 10–20% for real-world delays.
At a glance
Infographic · VideoThe Roofer briefing.
Infographic
Roofer quick-view
Video guide
Roofer explained
Polycarbonate is the cheap, light, weather-tough alternative to glass on a lean-to, carport or conservatory roof. Standard sheets are 25mm or 35mm multi-wall, with U-values from 1.7 W/m²K.
What's involved
- Measure and cut sheets to span
- Fit on aluminium glazing bars or rafter system
- Tape and seal edges to prevent condensation in cells
- Cap and trim flashings to wall and gutter
Typical UK costs (2026)
| Item | Cost |
|---|---|
| Per m² supply + fit (25mm multi-wall) | £75–£120 |
| Per m² supply + fit (35mm premium) | £100–£160 |
| Small porch / lean-to (3-5m²) | £350–£900 |
| Carport (10-15m²) | £900–£2,200 |
What to check
Sheet thickness depends on span and snow load — 25mm OK for sub-1.5m purlin spacing, 35mm needed for wider. Always seal cell ends with breather tape, not solid silicone — moisture must escape.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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