Southwark council has signed a £110m housing repairs contract with Mears.
Mears has been the interim provider on the contract since last October after the council terminated its deal with Morrison Facilities Services.
The company subsequently bought Morrison Facilities Services in November 2012 for £24m.
The new deal with Mears covers the south of the borough and will last five years with the option to extend it for another five.
The council said it had weighted its selection for the latest contract 70 per cent on quality and 30 per cent on cost.
Works covered by the contract include responsive repairs, repairs to empty properties and provision of out-of-hours emergency service.
The areas covered by the contract are Camberwell, Dulwich, Nunhead, Peckham and Peckham Rye, as well as repairs to temporary accommodation across the borough.
Morrison Facilities Services is unrelated to Galliford Try’s Scottish firms Morrison Construction and Morrison Partnerships.