Staff will go across the country at the Scotland PHE (Plumbing, Heating and Electrical) business.
The locations hit and staff going are Dundee (74), Inverness (130), Elgin (28), Thurso (19), and Fort William (17).
Alan Brown, director of business recovery services at PwC in Scotland said: “When we announced yesterday’s redundancies in East Kilbride, we were in discussions with an interested buyer for the remainder of the PHE business in Scotland and remained hopeful that a deal could be concluded.
“Unfortunately last night, it became apparent that this would not come to fruition. As a result of this, and in the absence of any other interested parties, we have regrettably had to take the decision to make the remainder of the PHE workforce redundant.
“We understand the impact of this, particularly in the North East of Scotland, and will be working closely with the employees affected by this decision to ensure they receive the support they need during this difficult time and to assist with their claims for redundancy and other compensatory payments.
“They will have access to an employee relations helpline and have been assured that they will be paid for the period they have worked since our appointment as administrators.
“We are continuing to progress the many expressions of interest we have received to date for the remainder of the contracts and business in Scotland and would expect to have further updates over the coming days.”
All other staff remaining at the company have been briefed, with the administrators working closely with them over the coming weeks as a buyer or buyers are sought.
The plumbing business in Scotland was the source of Rok’s recent profit warning which led to a share price collapse.
The latest round of redundancies brings the total job losses to 979 from Rok’s 3,800-strong workforce.