I set my first prices by looking at another detailer in my area and going $10 cheaper. No math. No cost breakdown. Just: he charges that, I'll charge a little less to get the bookings.
Six months in I finally sat down and added up what it actually cost me to do a job. My prices were too low by $20 to $30. I'd been losing that on every single job for half a year.
Pricing by comparison is a trap
The problem with copying another detailer's prices is you don't know their costs. Someone with a paid-off van, no insurance, and supplies bought in bulk has different margins than you do. Their price might be profitable for them and a money-loser for you.
Copying a competitor's price tells you what the market might bear. It tells you nothing about whether that number works for your actual situation.
Start with your costs
Add up everything it costs you to run the business. Vehicle expenses: gas, maintenance, insurance. Supplies per job: chemicals, microfibers, applicators — figure out your average cost per detail. Your time: how long does the average job take, including drive time and setup? Any fixed costs: phone, booking software, storage.
Divide the total by your number of jobs per day. That's your cost per job. Charge below that and you're paying to work.
Work backwards from income
After costs, figure out what you need to make. Not want — need. The actual number to pay your bills, cover savings, and not be stressed. Divide that by working days in the month, then divide that by jobs per day. That number is your minimum price per job.
If your costs come out to $40 per job and you need $200 per day gross from 2 jobs, your minimum is $100 per job just to stay solvent. To actually profit, you need to be meaningfully above that. Most new detailers price below their minimum without ever running this math.
Reality-check against the market
Once you have your number, check what customers in your area actually pay. Not to undercut — to make sure you're in the right range. If your minimum viable price is well above local market rates, you have a math problem: either your costs are too high, your target income is unrealistic, or the market won't support the business. If market rate is well above your minimum, you have room to price higher and test what holds.
Confidence in your number
The math matters. But how you quote the price matters just as much. When I finally knew my number was right — because I had actually run the calculation — I stopped softening it. Stopped offering unsolicited discounts. Stopped hesitating on the phone.
Customers can tell when you're not sure your work is worth what you're charging. The math gives you the confidence to act like it is. That shift alone changed how conversations went for me. The pricing problems I had early on are the same ones I covered in this post, if you're just getting started.