There have been 82 redundancies in the construction part of the business, 69 in the Scotland PHE (Plumbing, Heating and Electrical) business, 558 in the maintenance and improvements business, and 2 in head office.
Mike Jervis, partner and joint administrator, PwC said: "Regrettably, the redundancies made today were necessary for economic reasons where there has been little or no interest in the business from prospective purchasers or where there was insufficient work for staff to carry out.
“In the case of the maintenance and improvements division, we are rationalising the national network to slim down areas where there is not enough work for employees, principally in the build division.”
Jervis said that the remaining employees at Rok will continue to be paid as normal.
"We have set up an employee relations helpline and every employee affected by the redundancies has had the opportunity to attend a site in person or take part in a conference call,” he explained.
“We are working closely with employees affected by this decision to ensure they receive the support they need during this difficult time to assist with their claims for redundancy and other compensatory payments. Staff affected by this will be paid up to and including today.”
Jervis added that that PwC had received over 100 expressions of interest in the business, despite some rival contractors approaching Rok's clients directly, with a view to taking over their contracts.
PwC said it was currently drawing up a shortlist of interested suitors.
“There are still national contractors interested in all divisions, as well as parties interested in individual divisions,” said Jervis. “We are short-listing bidders on the basis of their size, level of interest in acquiring large parts of the business and their speed of reaction.
"We expect to have further updates by the end of the week."