Roofing in Scotland

Access and safety costs (scaffolding, edge protection), roof pitch and height, tear-off vs overlay, material grade, and how honestly hidden deck repair is priced. A low bid that excludes safety equipment and deck contingency isn't cheaper — it's just billed later.

Tear-off and disposal, underlayment spec, flashing replacement (not reuse), ridge and valley details, a unit price for replacing rotten decking discovered mid-job, scaffolding or edge protection, and cleanup with a magnetic nail sweep. A quote missing the deck-repair unit price is the classic setup for large mid-job extras.

Policies generally cover sudden storm damage (wind, hail, fallen trees) but not gradual wear and age. Document damage with dated photos immediately, get an independent assessment before signing anything a door-knocking contractor puts in front of you, and check whether your policy pays replacement cost or depreciated value on older roofs.

Typical service lives: asphalt shingles 15-30 years, concrete tile 40-60, clay tile and slate 60-100+, metal 40-70, flat membranes (felt, EPDM, TPO) 15-30. Underlayment and flashings usually fail before the covering itself, which is why old roofs leak even with intact tiles.

Often worth it: the access equipment is already up, edge details integrate cleanly, and combined pricing beats two separate jobs. If your gutters are under ten years old and sound, keep them — but have the roofer protect them during tear-off and note their condition in writing.

Yes, over time — moss holds moisture against the surface, lifts tile and shingle edges, and accelerates frost damage. Have it removed by soft washing or manual scraping, never high-pressure washing, which strips granules and forces water under the covering. Zinc or copper strips slow regrowth.

A typical semi-detached re-roof runs £5,000-£12,000, with the national average around £8,000; large or complex roofs reach £13,000-£20,000+. Per-m² rates of £80-£150 including scaffolding are the usual quoting basis, and slate or clay costs substantially more than concrete tile.

Usually not for like-for-like replacement — but Building Regulations apply once you replace over 25% of the covering, and listed buildings or conservation areas may restrict material changes (e.g. swapping slate for concrete tile). Your roofer or local authority can confirm before work starts.