Site survey
Short definitionMeasuring the place where the room will be built and checking the conditions on site (floor, power supply, unit location).
Before quoting, you look at the site: the space the room has to fit into, the ceiling height, the positions of columns and beams, the condition of the floor, and how the panels will be brought in.
On the refrigeration side you note where the condensing unit will go, the pipe route, the available electrical supply and where the defrost water will drain to. A detail missed at the survey turns into cost during installation.