Major HVAC equipment is sourced through manufacturer-authorised channels with commissioning, spares and annual maintenance terms agreed before the order.
Sensors, monitors, thermostats and ancillary items can be consolidated across sites and sourced directly, particularly on multi-site programmes.
Direct manufacturer supply is used where it is genuinely available for the category and volume. Where a brand supplies only through authorised partners, we buy that route to protect warranty and benchmark it so the difference is visible.