By Amber Murray Housing industry supplier Marshalls has reported a mixed set of results for the first half of the year due to what management called “weak end markets.” However, despite weakness in the construction market over the past year, the company said it was “cautiously optimistic” about the future. Marshalls announced revenue of £306.7m in the half-year ended 30th June, a 13 per cent fall from £354.1m in the first half of 2024. Marshalls produces three types of products: building, roofing and landscape. Its landscape business, in particular, struggled during the period: revenue fell by…