Format determines everything about the economics
There are three fundamentally different car wash businesses, and they don't compare to each other. Express tunnel washes are the highest-margin format — EBITDA margins above 30% are normal, and net margins routinely exceed 20% with subscription members covering a base load of revenue. Full-service washes (where employees vacuum, hand-dry, and detail) run thinner margins (10-15%) because labor is 30-40% of operating cost. Self-service "wand bays" are the smallest, lowest-margin format but require minimal labor and have the cleanest operating profile for absentee owners. Before evaluating any car wash, identify the format and use comparable transactions from the same format only.
