Zest Equipment Co
of Sidcup, Kent
Maker of fittings and accessories for the heating ventilating and sheet metal industries
1967 'Richard Crittall Holdings have acquired all issued share capital of Zest Equipment Co'[1]
1968 Richard Crittall was acquired by Crown House which formed a new subsidiary, Wheeler Crittall Berry for the contracting companies that were part of the group[2]
1973 Wheeler Crittall Berry was joined with Furse Installations to become Crown House Engineering[3]
1986 Crown House became part of Coloroll.
1987 Thomas Robinson Group acquired Crown House Zest from Coloroll