How to Hire a Trusted Roofer for Repairs in 2026 UK
Roofing scams cost UK households £21m a year (TrustMark data). The good news: 9 specific questions, two credential checks and one phone call screen out almost every cowboy. This is the BestBuilders 2026 vetting checklist — the same one our trusted-builder team uses to onboard.
Planning the work? Check what it usually costs, or work out your own estimate. The free quote form is at the top of this page.
2026 UK Roofer Vetting — The Non-Negotiables
✅ Hire Them If
- NFRC member with verifiable membership number
- CompetentRoofer-registered (Building Regs self-cert)
- £2m+ public liability + £10m employer's liability
- Scaffolding sub-contracted to NASC member, not "ladder & harness"
- Written, itemised quote — fixed price for work specified
- VAT explicit (included or excluded)
- Last 3 jobs with addresses and references
- 10–25-year insurance-backed workmanship guarantee
- Established 5+ years in UK at same trading address
❌ Walk Away If
- "Cash discount" or 50%+ deposit demanded upfront
- "We were just in your area" doorstep cold-call
- Cannot produce insurance certificates same day
- "Ladder & harness only — scaffolding not needed"
- "Estimate" rather than "quote" — no fixed price
- No proof of NFRC or CompetentRoofer membership
- Pressure to start "today" or "tomorrow"
- Mobile-only number, no fixed business address
UK 2026 Roof Repair Cost Map
| Repair | Realistic UK 2026 cost | Time on site |
|---|---|---|
| Replace 2–4 slipped tiles | £180–£380 | 1–2 hrs (with scaffold) |
| Repoint chimney flashings | £450–£950 | 1 day |
| Replace lead valley | £900–£1,800 | 1–2 days |
| Re-felt + re-batten section | £1,800–£3,800 | 3–5 days |
| Full re-roof (terrace, 60m²) | £6k–£12k | 5–10 days |
Before You Sign Anything
1. "What's your NFRC membership number?"
Verify on nfrc.co.uk — takes 30 seconds.
2. "Are you CompetentRoofer-registered?"
Required for any work covered by Building Regs Part L (re-roofs, >25% renewal).
3. "Can I see your insurance certificates?"
Both public liability and employer's liability — must be in date and issued to the trading entity on the quote.
4. "Who supplies the scaffolding?"
An NASC scaffolder, not "we use a ladder." NASC members carry their own £10m liability.
5. "What's the workmanship guarantee?"
10–25 years, insurance-backed (NFRC IBG or equivalent). A "lifetime" verbal guarantee is worthless.
6. "Can I have three references with addresses?"
Drive past one. Look up — does the work look 5+ years old?
Vetted Quotes — We've Already Done It
BestBuilders matches you with up to 3 vetted UK roofers — every one quoting on the same spec.