The Limited Liability Partnership (LLP) called Galatia is responsible for planned works, gas inspections, repairs and voids maintenance and could be a pioneer for future outsourcing models with housing providers.
The new company has a five year contract, extendable for another five years, worth £25 million.
The contract starts in May with the focus on Acis properties primarily in the Sheffield and Gainsborough areas.
Willmott Dixon Partnerships managing director Mick Williamson said: “We’ll be investing time and resource into management processes and training to equip our team of engineers with the best possible means of delivering our high standards of service.
“Alongside this will be our strong community programme which includes our award-winning ‘Opening Doors’ initiative that provides opportunities for work experience and training in areas such as plumbing, electrical, engineering, plastering and carpentry, as well as office experience, including administration, quantity surveying and project management.”