Pinnacle PSG is to oversee estate management for Woking Borough Council's 3,800 local authority tenants in a 10-year deal.
The work is part of a £60m deal Pinnacle secured with joint-venture partner Mansell Construction Services. The contract covers housing management, repairs and asset services, including grounds maintenance.
Woking said the decision to contract services to the joint venture, called New Vision Homes, was prompted by a desire to improve service levels and value for money.
Grounds maintenance will include mowing and tree and shrub upkeep. Pinnacle will oversee the grounds maintenance on the housing land to ensure it is to the right standard. It will work with Serco, which is already contracted by the council to supply grounds maintenance for the whole of Woking borough.
An out-of-office-hours service will enable tenants to report issues involving grounds maintenance. Staff with handheld technology will improve response rates.
Councillor Denzil Coulson said: "Pinnacle has more resources at its disposal, including capital to invest in maintenance programmes, training centres for staff and up-to-date integrated IT and technology."
The procurement process for the job lasted around six months and included open competition, market testing, an interview that closely involved residents and tenant representatives plus a statutory consultation with leaseholders.
Pinnacle PSG managing director Neil Euesden said: "We have a track record of excellent service delivery and we have worked with the council over the past three months to ensure that we hit the ground running."
"The contract is the result of a comprehensive procurement process that received cross-party approval. It aims to deliver to our tenants and leaseholders improved services that are value for money and as good or better than they were before."
Richard Wilson, portfolio holder for housing, Woking Borough Council