Quick answer
Before you can set a single price, you need to know one number: what does it cost you just to open your doors each day? Then you need to know what each service costs you to deliver. Once you have both numbers, real pricing becomes simple math.
Every figure below is a fictional example, used purely to show how the calculation works. They are not a benchmark to aim for, and your real numbers could easily look quite different.
Start From Your Own Numbers
The system only works if the numbers are yours. For anything with a provider, such as internet, phone, waste disposal or bookkeeping, a quick search or a couple of calls gets you an actual quote in an afternoon. For anything tied to the space itself, such as electricity, water and rent, ask the landlord or the previous tenant what they were actually paying. That is a far more reliable starting point than guessing from a listing.
Step 1: Your Fixed Costs
These are the costs that repeat every single month, whether you detail one car or twenty.
Operational costs are the bills and basic supplies to run a business day to day: electricity, phone, internet, water, waste disposal, rent, bookkeeping, invoicing software, and website and hosting. In the example, they come to $2,190 a month.
Administrative costs are insurance, licensing and permits, salaries and benefits, bank fees, office supplies, loan repayments and your marketing budget. Treat marketing as a fixed line item, not something you fund with whatever is left at the end of the month. In the example, administrative costs come to $3,400 a month.
Even working solo, you are probably not allowed to skip the salary line. In most places there is a legal minimum salary or contribution you must pay yourself. Look up your own country's requirement, because it directly affects every price you set.
Add them together: $2,190 plus $3,400 is $5,590 a month. With about 22 working days a month at a 40-hour week, that is roughly $254 a day to cover before you make a single dollar of profit.
Step 2: What Each Service Costs You
Materials. In the example, materials cost about $5 for an exterior detail, $10 for a full interior detail, $20 per stage of polishing and $100 for a ceramic coating. These come from personal experience, so treat them as a starting point. They are also based on a medium-sized car in reasonably good condition. Premium products or a heavily neglected vehicle push them up. On top of the raw cost, factor in equipment upkeep: washing your microfiber towels, replacing pads and brushes, repairing tools. In the example that adds roughly 15%.
Time. For a medium-sized car in average condition, with a technician whose only job that day is working on the car: full exterior detailing about 1.5 hours, full interior detailing 2.5 to 3 hours, polishing 1.5 hours per stage, ceramic coating on the body 45 minutes, and quality control and finishing 15 to 30 minutes.
Vehicle size. Bigger vehicles use more material and take more time, which is why your price list should have size categories. Expect a 20% swing up or down in both cost and price. Condition matters even more, most of the time: a small car that hasn't been cleaned in three years will often cost you more time than a large car that is detailed regularly.
A Worked Example
Take an exterior wash plus a full interior detail, about three and a half hours of work together. Materials run around $15, and adding 15% for wear and tear makes about $17 per service. If you fit two of these into a day, that is $34 in materials, plus the $254 fixed cost, for a total cost of $288 for the day.
If each one sells for around $165, the two bring in $330. Subtract the $288 and you are left with $42 of profit for the day, on top of your salary if you are working alone. That $165 is built around a markup on your costs. A 20 to 30% markup is a healthy range to aim for, and the example uses 25%.
Whatever profit you make is subject to income tax, and the rate varies by country, so your take-home will be a bit lower.
A solo setup in a smaller rented space looks very different. With a smaller garage bay and a minimum owner contribution instead of a full salary, the example's fixed cost drops to about $2,090 a month, or about $95 a day.
Don't Rush to Lower Your Prices
Don't rush to lower your prices just because your costs are lower. Whatever savings you find go straight into your income, or give you more room to offer a discount when you actually need one. Being cheaper than your competition is never the goal. Pricing too low compared with the real market won't bring in more customers in a business like detailing. It usually just means working extra hours for the same income, and it can make clients suspicious of a price that seems too good to be true.
Getting more efficient shrinks your time, not your material cost. If your prices are too tight, speeding up helps, but it is not a substitute for pricing correctly in the first place. Track your actual time for the first few months, and adjust your pricing once you have real data, not once a quarter has gone by on guesswork.
Build a Short Menu
Once you know your costs, shape your offer. The prices in this section are examples too, meant only to show how a menu is structured.
Three core packages. Exterior detailing, interior detailing, and polishing and protection. They are separate services, not tiers of the same job, and they follow the same shape as your actual working day.
A bundle. Package all three as a Full Detail Package, and price it a bit below what the three would cost separately.
Add-ons. On top of the core packages, offer add-ons for each category: engine bay detailing, chemical decontamination and extra wheel detailing for the exterior, leather conditioner and trim polishing for the interior, and headlight restoration for polishing. They are often the highest-margin part of your menu, since they add relatively little extra time but feel like meaningful extra value to the client.
Keep the core menu short. Three core packages plus a handful of add-ons is plenty for a client to process. A menu with twenty line items overwhelms people into indecision, or worse, into just picking the cheapest thing.
Show your prices. Put real numbers on your website, even if they are "starting from" prices. It costs you nothing and puts you ahead of every competitor hiding behind "contact us for a quote."
Leave Room for Discounts
Whatever you eventually charge, make sure it leaves you a healthy profit margin and some room to offer occasional discounts, for regular customers or a promotional period. A discount is a marketing expense like any other: you are spending margin instead of cash, for the same reason, to bring people in the door.
Want the full framework?
My Car Detailing Business Course covers market research, your fixed costs, the cost of each service, and pricing. It has 19 lessons on Udemy.