Operating under TEV Ltd, Marstair and Quartz represent the pinnacle of bespoke British HVAC manufacturing—delivering custom air-conditioning, chilled water systems, and cold-chain protection across Europe and the Middle East.
Marstair begins manufacturing high-specification refrigeration systems in West Yorkshire, quickly establishing itself as the UK benchmark for retail cold rooms, cellar cooling, and demanding low-temperature environments.
Quartz, originally manufacturing high-efficiency chilled water fan coils from its base in Dorset, moves north to join forces under Yorkshire manufacturing firm TEV Ltd (previously part of the prestigious IMI PLC global network).
TEV Ltd secures dual-tier management certifications: BSI ISO 9001:2015 for strict factory Quality Control and BSI ISO 14001:2015 for sustainable Environmental Management frameworks.
From the Microsoft Technology Campus in Ireland and London's Crossrail Paddington Station to countless retail networks across Europe, our West Yorkshire factory continues to engineer the future of smart, energy-efficient building systems.
Access our comprehensive, live Engineering Asset Matrix. Instantly search, filter, and download product sales brochures, mechanical technical manuals, diagnostic fault-finding charts, and parametric Revit BIM blocks for both the Marstair and Quartz platforms.