We are a Professional Surveying business located in the Upper Hunter Valley of NSW. We service all areas of the Upper Hunter with Our Head Office based in Muswellbrook and the other offices at Scone and Merriwa Strategically located to service our valued clients.

Since 2013 CalCo Surveyors Pty Ltd has been under the directorship of Phillip Bowden and Frank Compton, both long term employees of the company. CalCo Surveyors Pty Ltd commenced in July 2006 and operates in the Mid North Coast region of NSW as a renamed version of Calver de Witt & Taylor Pty Ltd which was formed in 1992 by Julian and Robyn Calver, Bernard de Witt and Michael Taylor. Prior to this the office was operated as a branch office of Asquith & de Witt of Charlestown and has operated in Gloucester, Great Lakes and Walcha regions since 1986. The practice is equipped with a range of surveying equipment including Trimble RTK GPS and GNSS system, Trimble fully robotic S8 Total Station and Unmanned Aerial Vehicle (UAV) Technology. Computer aided design systems including Magnet Office are used for surveying and engineering calculations as well as plan preparation. CalCo Surveyors provide the full range of survey services - residential, industrial, commercial, civil and mining projects and specialise in rural and rural residential subdivision development. The practice has always placed emphasis on quality and client satisfaction.