How do you start a mobile car wash business in 2027?

Mobile car wash is the lower-skill, lower-price-point cousin of mobile detailing. Volume game. Most full-time operators end up adding detailing services because pure wash margins are too thin for solo livability.

Startup costs. Bare entry (bucket-and-customer-water): low three figures - barely a business. Real mobile setup with water tank (50-100 gal), 12V or gas pressure washer, hot-water option, vacuum, drying towels, soaps/wax: low-to-mid four figures. Trailer rig with reclaim capability: mid five figures. Generator if working in lots without power.

Permits/licenses/insurance. LLC + business license. Water-discharge regs are the biggest gotcha: many cities (CA in particular under CWA stormwater rules) require reclaim systems for commercial parking-lot work. HOA bans on driveway commercial work limit residential routes. Commercial auto + general liability. Workers comp when hiring.

Customer acquisition. Office park weekly contracts (B2B fleet/employee perk) are the steady revenue. HOA single-day events. Apartment-complex partnerships. Dealer lot maintenance. Direct-to-consumer via Spiffy/Washos-style apps or your own booking page. GBP + Nextdoor.

Revenue model. Per-vehicle flat pricing (low end), package upsells (clay bar, wax, interior shampoo), monthly subscription routes, B2B per-vehicle contracts. Subscription is the survival mechanism.

Year-1 outlook. Hard solo without route density. Two-truck operations with subscription book hit livable margin quicker. Cold-state seasonality is brutal.