ROCKWOOL Group has rebranded Wetherby Wall Systems as ROCKWOOL Wall Systems from 1 October 2026, according to a company announcement published by Construction UK Magazine, giving UK specifiers one consistent identity across ROCKWOOL’s wall systems businesses in the UK and Germany.

ROCKWOOL Wall Systems, a supplier of complete external and internal wall insulation systems combining stone wool with system components, has been part of ROCKWOOL Group for two years and says its people, products, contracts and ordering processes remain unchanged.

ROCKWOOL Group, a Denmark-based stone wool insulation manufacturer, acquired Wetherby Building Systems in October 2024 and also owns wall systems specialists HECK Wall Systems in Germany and FAST Wall Systems in Poland, according to its 2024 announcement.

At acquisition Wetherby, founded in 1998 and based in Golborne, Greater Manchester, had turnover of £47.6m (€57.1m) and pre-tax profit of £9.8m (€11.8m) in the year to October 2023, according to Construction Wave, with depots in Glasgow, Watford and Bridgend.

ROCKWOOL Wall Systems UK Managing Director Simeon Gabriel said in the announcement that the new trading name reflects the business being backed by a strong international brand and gives it a stronger platform while keeping its expertise, relationships and customer focus.

The branding change lands in a retrofit market under quality scrutiny: the National Audit Office estimated, as reported by CIC, that 98% of homes with external wall insulation installed under ECO4 and the Great British Insulation Scheme had major issues requiring remediation.

The Government’s Warm Homes Plan, as summarised by Local Government Lawyer, commits £15bn (€18bn) to 2030 to upgrade 5 million homes and requires 100% audits of external wall insulation installed under ECO4 and GBIS, with remediation paid for by installers.

Facilities Management Now reported in 2024 that the acquisition was driven by demand for non-combustible and energy-efficient products, with ROCKWOOL saying the Wetherby portfolio would complete its transition to fully stone wool-based systems.

For the sector, manufacturer-owned system suppliers are consolidating under parent brands, giving specifiers a clearer line of accountability, though customers will judge the new identity on delivery rather than branding.