Lewis specialises in the construction and maintenance of infrastructure and assets within the water industry.

Its clients include Wessex Water and Dwr Cymru Welsh Water and the firm employs around 175 specialist staff.

Lewis made a £1m profit on a £20.4m turnover during the year to 31 July 2012.

Turnover this year is expected to be up 20% with similar profit margins.

Lewis was 80% owned by Mrs J Lewis, who has resigned from the Board at completion of the transaction.

David Boden, Managing Director of Lewis, who owned the remaining 20%, continues in that position following the acquisition, having entered into a new two year service contract, and will report to Renew’s Engineering Services Director, Paul Scott.

Roy Harrison, Chairman of Renew, said: “Renew’s presence in the Environmental market will be significantly strengthened by the acquisition of Lewis.

“This acquisition accords with the Group’s clear strategy of growing its Engineering Services business in sustainable markets, where it can secure strong framework positions with major clients focusing on areas of non-discretionary spend.”