Three firms cover refrigerant and air-handling work, all limited companies founded between 1990 and 2002 — Sarnia (Vale, 1990) for commercial refrigeration and catering kitchens, RefCo (Forest, 1998) as a broad M&E contractor, Alpha (St Sampson, 2002) for AC, heat pumps, and VRV systems. Alpha holds Daikin Certified Installer and Refcom status. —
One firm per niche, picked for editorial depth.
SSAIB certified & REFCOM accredited M&E contractor — high-end HVAC, BMS, and security systems
Daikin & Refcom certified AC, heat pump, and refrigeration specialist; 24-hour breakdown service.