Colin Petherick, Project Manager / Estimator Colin is a qualified Refrigeration/Air Conditioning Technician and has been in the HVAC Industry since 1974. Colin has extensive experience in HVAC industry which includes estimating, contracting, design, project management and commissioning within Australia and international exposure. With extensive practical design and implementation experience delivering projects from conception through implementation to completion, commissioning and hand over. Colin has been a director of his own businesses within Australia and the UK with an annual turnover of $12M. Colin works closely with Peter and Scott to ensure Genesis Air Service P/L provide higher than expected customer satisfaction.