The Colchester company, which was recently acquired by the newly-formed Performance Windows Group (PWG), is one of the UK’s leading manufacturers of bespoke timber windows, with an annual turnover of £7m.

Roy Wakeman, executive chairman of PWG and former president of the BWF, said he saw the Scheme as a “natural extension” of the company’s membership of the BWF.

“We believe we can make a valuable contribution because our aims and ambitions are in total empathy with those of the Scheme – first and foremost, to raise standards and promote quality in timber windows,” he said.

He said timber was the country’s “number one natural fenestration material”, and probably the only one to meet the stringent demands for sustainability and long-service life.

“We want to build on, and take advantage of, the resurgence in demand for factory glazed and fully-finished performance windows.”

BWF chief executive Richard Lambert said that Mumford & Wood’s membership of the Scheme showed the importance of accreditation and the collective promotion of timber windows.

“Having Mumford & Wood as a member is a great boost for the Scheme and hopefully it will encourage other leading manufacturers to join us,” he said.

Mr Wakeman added: “The more pressure we can collectively bring to bear on poor manufacturing and those who have little regard for sustainability of the country’s housing stock and the protection of timber as a truly renewable resource, the greater the reward.”