Mears Group and Wates Group have been awarded a 10-year council housing maintenance contract by Crawley Borough Council.
The contract, valued at £167 million, will see Mears and Wates carrying out maintenance work to homes in separate areas of the West Sussex town.
Mears will manage responsive repairs, planned maintenance and empty dwellings works for Crawley Homes properties from 1 April.
Existing staff will be moved over the new contractors to ensure that there is no disruption for council tenants.
Councillor Ian Irvine, a cabinet member for housing, said: "This is great news for our council tenants, who will continue to receive top-quality service. Here at the council, we have a thorough process to ensure we get the best possible deal for both the organisation and our residents."
Colin Middlemas, chief operating officer at Mears, said: "We place social value at the heart of our business and we look forward to working with them to develop shared objectives as to how we can contribute back into the community.
"Mears is not just a contractor but a local employer and our operatives are members of the community in which we will be working."