My $.02 -
You can turn out a good amount of money doing hand washes, but thats only if you can line up a steady flow of customers. Do you have any connections at local business' that you can hit up?? The key to keeping regular washes profitable is not having to drive around to get to them.
If you charge (for example) $40 for a quick hand wash and wax and don't have any downtime between vehicles you'd be set.
$40 per wash / 2 guys = $20 per man (minus cost of supplies)
1 hour per wash w/ 0 downtime means you could pull in 7-8 cars a day or a profit of $140-$160 per man per day. What will kill you is if you do 1 car... then spend 15 minutes packing everything up again, another 15 minutes driving to the next appointment, then a couple of minutes setting up you've eaten too far into your time. Having set locations where you'll have a stream of customers keeps you from having to "reset" your stuff every time you start... you can just keep working... and thats the key to profit.
Furthermore you structure the work flow between the 2 guys to maximize speed. Immedeatly one starts washing while the other preps applicators, vaccums, scrubs wheel wells, etc. One drys while the other is inside applying dressings, or cleaning carpets. While one guys removing the quick wax the other guy is prepping the next set of tools and drives the next car into position. Its all about efficiency and keeping the flow going with as little downtime as possible to maximize profits... think of it almost like an assembly line.
Locally there is a guy who parks his van at the Mercury Insurance corporate office on monday, the courthouse lot on tuesday, and various others each day of the week ... he washes cars from 8am non-stop until 6pm almost every day.
If you could arrange a schedule like that, limit your downtime and maximize your profit per vehicle you could make some good coin.
Like was said above, the best profits are to be had from full details, but it sounds to me more like you are gearing towards the basic wash stuff. You can always up-sell the details to the customers as well:
"Your car is finished. We noticed you have a lot of small scratches and some haze in your paint... if you're interested we also offer full details and I can schedule an appointment for you to get all that buffed out."
Some people actually think that swirl marks and spiderwebbing are something that is just par for the course and theres nothing they can do about it... its always nice to see their reaction when they pick up their vehicle and theres not even a hint of a swirl mark anywhere.
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