Opal helps businesses that depend on clean air create comfortable, healthy, optimised indoor environments. Our portfolio includes energy-efficient heating, ventilating and air conditioning systems and design contracting and maintenance services for built environments and industries. Over the last 34 years, we have delivered projects in life sciences, healthcare, industrial, nuclear, defence, cold chain and low relative humidity applications. Our leadership and engineers are recognised for our sound advice, reliable, no-nonsense engineering and exceptional service standards.