Cheviot Housing Association is inviting bids for a £10 million repair and maintenance deal.
The contract will cover about 2,500 homes, mostly in the Durham, Tyne and Wear and Northumberland counties.
External and internal works, including lift replacements and upgrades to community heating and electrical equipment systems are included in the four-year contract, which is worth about £2.5 million a year.
The association expects to invite six bidders to submit formal tenders. The deadline for requests to participate is Monday 2 June.