Well 20 years has gone past since then and we have now unearthed the pictures that explored the behind the scenes life of the factories.
The hair, the fashions, the big-backed computers these photos have it all but who do you recognise?
1. 2 - Managers meeting
From left David Strawford General Manager, and Richard Billam Head of London Div, in the drawing office of SMS in 1998 Photo: Waistell
2. 2 - Look at that computer!
Tony Marsh the Contracts Manager for SMS in 1998 Photo: Waistell
3. 4 - Behind the scenes team
From left Nicola Afzal Service Manager, Janice Colley Accounts Manager, and Jessica Johnson Service Admin at Chesterfield's SMS in 1998 Photo: Waistell
4. 5 - Hard at work
Engineer Ian Pendleton was working on a condensing unit at SMS in 1998 Photo: Waistell
1 / 2