Kier has helped the local authority to reopen Lime Kiln Leisure Centre’s swimming pool.
This had been closed since December 2010 following a fire, although all of the other facilities in the building have remained open.
The blaze started near the sauna but spread to the roof and caused extensive damage to the structure.
Wiltshire Council approached the construction firm as it already has a maintenance contract with it and Kier used its Small Works project team to deal with the council’s tight time restrictions.
Work commenced in June and is already nearing completion, with electrical and mechanical appliances being refitted, pool plant being reinstated and the conclusion of associated projects underway.
“Kier’s performance on this project has been outstanding, particularly in reference to the extremely short timescales and the complexity of the project,” the local authority’s project director Darren Tape said.
He added: “The contracts manager, foremen and operatives have worked extremely diligently.”