We have a broad customer base and serve the local area, Sydney CBD, the Greater Metropolitan area of Sydney, Country NSW and at times Australia wide.
McDonnell Air Conditioning is committed to a standard of excellence and maintaining quality workmanship at competitive prices. We aim to build long standing relationships with our clients through, reliability, honesty, quality and excellence in our work.
McDonnell Air Conditioning is a privately owned Australian Company. Established in 2001 and located in the Hawkesbury Region.