New roofs

Should a new roof include new leadwork?

Short answer: Leadwork should be assessed as part of the system. Sound compatible details may sometimes remain, but worn, split or incorrectly detailed lead should not undermine a new covering.

What this means in practice

A reroof is a complete weatherproofing system, not simply a new layer of tiles. The quotation should join up the covering, underlay, graded battens, ventilation, insulation, ridges, verges, leadwork, timber repairs, scaffold, waste and compliance route.

What to check next

  • List every valley and abutment in the quote
  • Specify lead code and detail where relevant
  • Photograph any retained leadwork

When should you ask a roofer to inspect it?

Ask for a full roof survey when defects are widespread, repairs keep moving from one area to another, the underlay is failing or the cost of repeated access is becoming uneconomic. The roofer should show why replacement is justified and separate confirmed work from hidden-work allowances.

Safety first: do not climb onto a roof without suitable access, training and protection. Keep clear of loose coverings, unstable ceilings and water near electrical fittings.

Technical content reviewJ & L Welch Roofing & Paving Services Ltd · Over 20 years of combined roofing experienceReviewed 28 August 2026 · How our answers are produced

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