Good to know
What changes the price?
Three things. Vehicle size, so a large SUV or 4x4 takes longer than a hatchback. Condition, so pet hair, ground in mud, heavy tar or a car that has not been cleaned in a year needs extra time. And access, since Mason needs enough room to work around the vehicle safely.
Mason will tell you the final figure before he starts. If he thinks a cheaper package will do the job just as well, he will say so.
What does Mason need on the day?
A parking space with room to walk around the car, and access to water and an outdoor power socket where possible. If you cannot offer either, mention it when you book and he will plan around it.