Employees at the £50m turnover business have taken to LinkedIn to find new roles.
One wrote: “Still reeling from announcement that MechFS was being put into administration yesterday.
“Such a great outfit put down by one big bad debt.”
MechFS also has regional offices in the Midlands, Sheffield and Leeds and has been trading for more than a decade.
Latest accounts for the year to June 30 2020 show the firm made a pre-tax profit of £923,970 from a turnover of £49.7m and employed 104 staff.