Roofing is one of the trades most affected by rogue traders and poor workmanship. Here is what to look for, what to ask, and what to avoid.
The National Federation of Roofing Contractors is the primary trade body for the sector. NFRC membership requires contractors to meet standards for quality, insurance and training. Verify membership at nfrc.co.uk.
Any contractor working on your property should carry public liability insurance of at least £2 million. Ask for a copy of the certificate — not just a verbal assurance.
A reliable contractor provides a written quote that specifies: what is being removed, what materials are being installed (manufacturer and grade), what warranty is provided and by whom, and a schedule for the work.
Ask for two or three references from recent work in the local area — within the last 12 months, ideally within 10 miles.
Key fact: Roofing is consistently among the most-reported trades to UK trading standards, with rogue-trader activity rising after major storms. Source: Chartered Trading Standards Institute reporting
North Wales has specific material knowledge requirements. Penrhyn Blue slate specification, NHL lime mortar for period masonry, conservation area requirements in Llandudno and Conwy, and mechanical fixing requirements for exposed coastal ridge tiles are all North Wales-specific knowledge. Ask any contractor whether they carry reclaimed Penrhyn Blue slate and whether they use lime mortar on period properties — the answers will tell you a lot.
Free, written, itemised surveys on all roofing work. No pressure, no cold calling.
📞 Call 01492 339 101You should not be asked to pay the full amount upfront. A small deposit (10-25%) on large projects is reasonable once you have a signed contract. The balance should be payable on completion.
A minimum 10-year workmanship guarantee is standard for re-roofing work. Manufacturer tile guarantees are separate — typically 30 years on concrete tile and 50+ years on clay and Welsh slate. Ensure both are in writing.
Not always — but a quote significantly below the others deserves scrutiny. Common omissions: cheaper felt, non-treated battens, mortar-only rather than mechanically fixed ridge, exclusion of scaffold.
Roofing cold calling is disproportionately common in coastal North Wales — particularly following named Atlantic storms. The pattern is consistent: an unsolicited knock at the door, a claim to have spotted a problem from the road, pressure to agree work immediately. These callers are frequently not local, not insured, and not competent. The simple rule: never commission roofing work from someone who knocked on your door unsolicited. Legitimate roofers do not need to cold call.
Ask any contractor quoting for period property work two questions: what mortar specification are you using, and how are you sourcing matching slate? NHL lime mortar and reclaimed Penrhyn Blue should be the immediate answer for any Victorian or Edwardian property in Llandudno. If the contractor looks uncertain at either question, find someone else. These are the minimum standard for period roofing work in North Wales.
No call-out fees. No obligation. An honest quote from a local roofer who knows Llandudno properties.
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