From 30 Sep 2020
 
October, 2020
1 Thu 1 day HETAS H006 (Internal Twinwall Chimneys)
20 Tue 2 days HETAS H003R (Refresher)
22 Thu 1 day HETAS H006 (Internal Twinwall Chimneys)
November
3 Tue 3 days H003DS (Defined Scope)
Times shown in timezone: Europe/London