When I had my mobile business, I was getting these prices on a regular basis.
Wash:
This included hand wash, wheels, tires, fender wells, glass and vacuum, tires dressed.
Cars = $20
Small SUV = $30
Large SUV and Trucks = $40
I can usually knock out the car in less than 20 minutes.
If they wanted a coat of wax, it was double. Never had a customer balk at the price because I was offering a service of convenience.
I have stopped into a school in another town and had 15 vehicles to do and the front desk would have all the keys and checks waiting. I did that every Wednesday on a schedule so they knew I was coming. I would call over on Monday to make sure we had enough to make the trip.
I would say a lot of guys are selling themselves short on the mobile side. The customer is paying for convenience and if you offer superior quality, they will keep calling you back.
HUMP