Car wash valuations fell from 12-16x to near 5x

The clearest number in the car wash industry right now is a sale price. In February 2025, Driven Brands sold its car wash segment to Whistle Express for $385 million, a multiple of roughly 5 times EBITDA on the segment’s unburdened adjusted figure.1 Four years earlier, platform express-wash assets were trading at 12 to 16 times, and Mister Car Wash went public in June 2021 priced above 20 times forward adjusted EBITDA.2 Nothing about washing a car changed in those four years. The price of owning the business did.

That repricing is the whole story, and it is good news for a patient operator rather than bad news. The express car wash is still a genuinely attractive business: subscription revenue that renews monthly, minimal labor, owned real estate underneath, and demand that holds in a downturn because a clean car is a cheap indulgence. What has left the market is the premium that private equity paid for it during the roll-up. What remains is an operating business, which rewards a different skill than a buying spree did.

Still large, still fragmented

The US car wash and auto-detailing market runs roughly $18 to $19 billion a year and is the largest in the world.3 The format that won is the express exterior tunnel sold on an unlimited monthly membership. Despite a decade of consolidation, the largest chain in the country holds only 3% to 4% of the market against something like 55,000 to 60,000 mostly independent operators.4 The industry never actually consolidated. What got expensive was the growth story layered on top of it, and that story has since come back down to earth while the market stayed just as fragmented as it always was.

Growth is priced now, not counted

During the roll-up, buyers underwrote unit growth: build or buy more tunnels, convert customers to unlimited plans, repeat. That volume engine has largely run its course in built-out markets, where transaction counts have flattened and revenue growth now comes from price, ceramic and graphene upsells, and membership mix rather than from new cars in the tunnel.

The multiple compressed to match. Platform valuations fell 200 to 400 basis points across 2023 and 2024, and the recent transaction comps tell the arc directly: Valvoline’s retail wash purchase cleared at about 10.7 times trailing EBITDA in late 2024, and the Driven-to-Whistle deal landed near 5 times in early 2025.5

For a buyer, that changes the underwriting entirely. In a volume market you pay for growth you have not yet earned. In a price market you pay for operations you can measure today: membership retention, throughput per bay, chemistry cost per car, and the cost line almost nobody manages well, which is water.

Membership is the asset, and it leaks

An unlimited membership base is the reason these businesses earn a premium to a corner wash, because it converts a weather-dependent walk-up service into recurring revenue. It is also the number most at risk in a saturated market, because a member who washes rarely cancels quickly. Industry data puts voluntary monthly churn around 4%, with the average monthly membership lasting roughly 15 months and multi-vehicle plans closer to 19; the single best predictor of retention is early usage, where a member who washes 1.7 times or less in the first month is far more likely to lapse and one who washes three or more times is far more likely to renew.6 Selling the membership is the easy part. What keeps it is engineering that first-month habit.

The water bill is the underwritten edge

Strip an express wash to its variable costs and three items matter: labor is low and falling with automation, chemistry is roughly a market rate everyone pays, and water is the line that varies wildly by operator and that most owners barely track.

A conventional wash draws 30 to 70 gallons of fresh water per car. A site with a modern reclaim system captures, filters, and reuses that water, cutting fresh draw to 10 to 20 gallons, a reduction of up to 85%.7

The International Carwash Association puts average savings around $20,000 a year on water alone, cutting the water bill by up to 70% and pulling sewer and chemical costs down with it. A reclaim system runs roughly $5,600 installed with $800 to $1,000 a year in maintenance, so the payback is measured in months, not years.8

In the West the number understates the value, because reclaim plus on-site storage is what keeps a wash operating through drought restrictions and municipal rate increases. A site that can run when its neighbors are curtailed is worth more than a spreadsheet that models only the utility savings will show.

Where I land

I would still buy a car wash, just not at a 2021 multiple built on a 2021 growth story.

The site worth owning owns its real estate, retains its members through the first-month usage habit rather than through discounting, and has already solved its water cost with reclaim and storage. Greenfield economics are the discipline check here: a new express tunnel costs anywhere from about $3.85 million to well over $10 million to build, and the majors run above $6 million before sale-leaseback.9 If an existing wash is priced near or above what it would cost to build a better one next door, the deal is the seller’s, not mine. At today’s compressed multiples, though, the good ones finally clear at a price where the operating work, not the entry price, determines the return. That is the kind of business I want to own.