How to start a mobile car detailing business
What it costs, what you file, what it earns and what ends most of them. Every number below is cited to where it came from.
Starting a mobile car detailing business costs $3,000 to $10,000, on figures published by a primary source. The hardest part is commonly reported: customer acquisition and repeat bookings in a fragmented, low-barrier market where the 50 largest firms hold under 20% of revenue, compounded by practical constraints mobile operators face that fixed sites do not, weather, on-site water and power access, and legally disposing of wash water rather than letting it reach a storm drain.
What it costs to start
$3,000 to $10,000The vehicle is the swing factor: a budget build at $3,000 to $5,000 uses a car you already own plus an entry-level pressure washer, extractor, polisher and generator, while $5,000 to $10,000 covers a dedicated van and professional-grade equipment (premium builds run $10,000 to $20,000).
Source: source
What you have to file
Licensing is set by state, county and city, so this is what the category tends to require rather than a list for where you live. The state pages below carry the filing detail for each of the 50.
- General business licence (city/county)
- Employer Identification Number (EIN) from the IRS
- State sales tax permit / seller's permit
- Mobile vending or mobile business permit (required in some municipalities)
- Wastewater discharge authorisation from the local Publicly Owned Treatment Works (POTW), or wash-water containment and offsite disposal, washwater may not be allowed to enter storm drains under the Clean Water Act
- NPDES permit (only where wastewater is discharged directly to surface waters; generally impractical for mobile operators)
- General liability insurance
- Garage keepers legal liability insurance (covers customer vehicles in your care, custody and control)
- Commercial auto insurance
- Workers' compensation insurance (required once you have employees)
What the margins look like
Auto detailing runs an average profit margin of 15 to 35%, with typical hourly rates of $50 to $100 and full details priced around $150 to $500 depending on vehicle size.
Source: source
Whether demand is growing
Flat
Essentially flat: IBISWorld records the US car wash and auto detailing market at -0.1% growth in 2026 and only a 1.5% CAGR over 2021 to 2026, so operators grow mainly by taking share rather than riding market expansion.
Source: source
How big the market is
The US Car Wash & Auto Detailing industry was worth $18.7 billion in 2026, having grown at a 1.5% CAGR over 2021 to 2026 (IBISWorld). The industry is highly fragmented, the 50 largest US companies hold less than 20% of the market.
The part that ends most of them
Commonly reported: customer acquisition and repeat bookings in a fragmented, low-barrier market where the 50 largest firms hold under 20% of revenue, compounded by practical constraints mobile operators face that fixed sites do not, weather, on-site water and power access, and legally disposing of wash water rather than letting it reach a storm drain.
Before you start
- What it will cost you, since the numbers above are the category and not your version of it
- Sole proprietor, LLC or S corp, what actually differs, with no recommendation
- What your state wants filed, read from the state's own pages
- What you have to sell to break even, which decides whether the margin above matters
- Which way you actually work, if the choice between these is really a choice about you
A different business
Compare all twenty side by side
SideKix, “How to start a mobile car detailing business”. https://sidekixhq.com/how-to-start-a-mobile-car-detailing-business.html
Questions people ask
How much does it cost to start a mobile car detailing business?
$3,000 to $10,000. The vehicle is the swing factor: a budget build at $3,000 to $5,000 uses a car you already own plus an entry-level pressure washer, extractor, polisher and generator, while $5,000 to $10,000 covers a dedicated van and professional-grade equipment (premium builds run $10,000 to $20,000).
What licences do you need for a mobile car detailing business?
Typically: General business licence (city/county); Employer Identification Number (EIN) from the IRS; State sales tax permit / seller's permit; Mobile vending or mobile business permit (required in some municipalities); Wastewater discharge authorisation from the local Publicly Owned Treatment Works (POTW), or wash-water containment and offsite disposal, washwater may not be allowed to enter storm drains under the Clean Water Act. Licensing is set by state, county and city, so the exact list depends on where you operate.
What profit margin does a mobile car detailing business make?
Auto detailing runs an average profit margin of 15 to 35%, with typical hourly rates of $50 to $100 and full details priced around $150 to $500 depending on vehicle size.
Is demand for a mobile car detailing business growing?
Essentially flat: IBISWorld records the US car wash and auto detailing market at -0.1% growth in 2026 and only a 1.5% CAGR over 2021 to 2026, so operators grow mainly by taking share rather than riding market expansion.
What is the hardest part of running a mobile car detailing business?
Commonly reported: customer acquisition and repeat bookings in a fragmented, low-barrier market where the 50 largest firms hold under 20% of revenue, compounded by practical constraints mobile operators face that fixed sites do not, weather, on-site water and power access, and legally disposing of wash water rather than letting it reach a storm drain.