The fall of the Cardiff based business will also hit more than 100 subcontractors who worked with the £18m-a-year turnover business.
Richard Hill and Joff Pope of KPMG have been appointed joint administrators of Glamalco and holding company Glamorgan Aluminium Co.
Glamalco employed 156 staff based across three sites in Ipswich Road, Cardiff; Andover and Redditch.
The company made 140 redundancies before it went into administration and 16 staff remain employed by the company to assist the administrators with their duties.
Joff Pope, joint administrator and associate partner at KPMG said: “Glamalco has encountered cashflow difficulties, which has resulted in its inability to fund ongoing construction contracts, and unfortunately, the business is unable to continue to trade.
“We will now be pursuing an orderly wind-down of the business.”
The company had worked on a string of prestige projects including large office blocks and luxury residential apartments, supermarkets, hotels, swimming pools, schools and airport terminals.