Home renovation guide: selecting craftsmen and roofing costs

When undertaking home renovation projects, particularly roofing, selecting a reliable craftsman and understanding cost structures are essential to avoid financial loss and poor workmanship.

To ensure professional competence, homeowners should verify a contractor's SIRET number and valid ten-year insurance (assurance décennale) rather than relying solely on a well-presented quote. Comparing at least three detailed estimates is recommended to identify potential scams or amateurism. A professional quote must include specific work descriptions, materials, timelines, and a detailed breakdown of costs including VAT.

Roofing costs vary significantly based on materials and technical complexity. For example, terracotta tiles typically range from 80 to 150 € per m², concrete tiles from 40 to 90 € per m², slate from 130 to 200 € per m², and zinc from 135 to 225 € per m². Other factors influencing the final price include the roof's surface area, pitch, accessibility, the need for scaffolding, and the underlying condition of the framework.