KPMG took control of the company on Friday.
The administrators have now confirmed an initial wave of redundancies with the remaining 21 staff left to support KPMG as they conduct a review of existing contracts and try to sell assets.
Chris Pole, joint administrator and restructuring director at KPMG, said: “Unfortunately, following a review of the position and the difficulties with continuing to trade, we have had to take the decision to make 83 staff redundant.
“The remaining employees are supporting us whilst we conduct a review of existing contracts and explore a possible sale of the remaining business.
“The company is involved in a wide-range of public and private sector construction contracts, including substantial work under local authority framework agreements.”