Glendale began work on a new housing contract with the Home Group on 1 November involving cleaning and greening grounds.
The deal will see Glendale ground crews and neighbourhood services swing into action around 12,000 properties in the North East. Tree work will be managed by the company's regional arboriculture team, which is based in South Tyneside.
This is Glendale's first significant green-and-clean contract win in recent months with staff undertaking cleaning duties in internal communal areas and is an area of expansion the company had been targeting, it said.
Home Group will be able to monitor grounds work by using Glendale's "Live System", which provides minute-by-minute updates of work completion for effective progress reports on efficiency and quality.
Regional support manager in the north David Fontana said: "With more than 20 years of experience of housing associations, Glendale recognises the contribution that communal areas make to residents' quality of life."
He added that Glendale will run its apprenticeship scheme, providing job opportunities for local residents and the wider community. Residents' satisfaction is often best achieved through "customer and stakeholder involvement", said Fontana.
Glendale South East regional director Adrian Wickham said: "Employing local people from the communities we work in generates a sense of local pride and encourages the ownership of the areas they live in."
Home Group head of customer service Graham Darby added: "We've selected Glendale because it has a strong track record in this area and we're confident that they will provide us with a high-quality service."
Home Group, a social enterprise and charity with a turnover of more than £300m, is one of the UK's largest housing providers.
Founded in the North East by an act of Parliament in the 1930s, the group houses more than 120,000 people in 55,000 homes across 200 local authority areas in England, Scotland and Wales.