Mister Car Wash vs ModWash
Data updated · May 24, 2026
Mister Car Wash is larger (553 vs 127 locations); ModWash is rated higher (4.85★ vs 4.11★); ModWash has the lower reviewer-reported damage rate (0.83% vs 4.34%).
Mister Car Wash and ModWash are both national-tier US car wash operators. ModWash edges ahead on review-weighted rating (4.85★ vs 4.11★, a meaningful gap). On reviewer-reported damage, ModWash runs lower at 0.83% vs 4.34% — a meaningful operating-quality gap. The dataset-wide average across all car wash chains is roughly 1–3%.
| Metric | Mister Car Wash mistercarwash.com | ModWash modwash.com |
|---|---|---|
| Locations | 553 25 states | 127 12 states |
| Reviews | 316,897 66,151 LLM-scored | 182,068 70,105 LLM-scored |
| Avg rating | 4.11 | 4.85 |
| Damage rate (lower better) | 4.34% | 0.83% |
| Membership cancellation friction (of mem-discussing reviews) | 11.5% | 12.4% |
| Dominant format | Express Tunnel | Express Tunnel |
Mister Car Wash operates 553 locations across 25 states (22.1 sites per state on average). ModWash operates 127 locations across 12 states (10.6 per state). Mister Car Wash has a denser per-state footprint (22.1 sites/state vs 10.6 for ModWash), suggesting a more saturated regional strategy. Total customer signal is 316,897 Google reviews for Mister Car Wash (66,151 LLM-scored) vs 182,068 for ModWash (70,105 scored).
How do customers rate each chain on the 7 pillars?
Aspect scores aggregate WashIndex's LLM extractions across each chain's reviews. Each score is (positive − negative) / total mentions, ranging −1 to +1. Numbers above zero mean customers say more positive than negative things about the aspect; below zero means the reverse.
| Aspect | Mister Car Wash | ModWash | Winner |
|---|---|---|---|
| Wash Quality | +0.29 | +0.75 | ModWash |
| Staff & Customer Service | +0.66 | +0.94 | ModWash |
| Wait Time | +0.48 | +0.64 | ModWash |
| Per-Wash Price | -0.21 | +0.24 | ModWash |
| Equipment Working | -0.49 | -0.33 | ModWash |
| Facility Cleanliness | +0.70 | +0.79 | ModWash |
| Membership Value | +0.16 | +0.25 | ModWash |
Mister Car Wash's strongest aspect in customer reviews is Facility Cleanliness (+0.70); the weakest is Equipment Working (-0.49). ModWash's strongest is Staff & Customer Service (+0.94); the weakest is Equipment Working (-0.33). ModWash comes out ahead on Wash Quality, Staff & Customer Service, Wait Time, Per-Wash Price, Equipment Working; Mister Car Wash doesn't have a clear win on any of the 7 pillars.
Mister Car Wash has the lower cancellation-friction rate (11.5% vs 12.4% of mem-discussing reviews) — a modest gap. The dataset-wide rate is roughly 10–15%. Customers discuss memberships more often when reviewing Mister Car Wash (15.8% of reviews) than the alternative (8.5%), which usually signals a more aggressively-marketed unlimited-wash program.
Do they operate the same format of car wash?
| Format | Mister Car Wash | ModWash |
|---|---|---|
| Express Tunnel | 7.9% | 2.1% |
| Full Service | 4.6% | 3.6% |
| Hand Wash | 0.8% | 1.5% |
| Self-Serve Bay | 1.1% | 0.6% |
Format share is computed across customer review mentions, not over locations. A chain with mostly express-tunnel sites but heavy detail-shop talk in reviews will show both at non-trivial rates.
Format-mix-wise, Mister Car Wash and ModWash are matched: both lean Express Tunnel. The differentiator isn't what they do, it's how they do it.
Where do Mister Car Wash and ModWash compete?
Mister Car Wash and ModWash compete head-to-head in 9 metropolitan statistical areas. In those shared markets, customers can choose between the two. In short: If customer-rating consistency is the deciding factor, ModWash is the safer pick; if avoiding vehicle damage is the priority, ModWash runs the lower reviewer-reported damage rate; if location convenience matters most, Mister Car Wash has more sites to choose from.
About Mister Car Wash vs ModWash
Mister Car Wash vs ModWash: which is bigger?
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Which has the higher customer rating, Mister Car Wash or ModWash?
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Which has the lower damage rate, Mister Car Wash or ModWash?
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Where do Mister Car Wash and ModWash compete head-to-head?
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About this comparison
Both chains' numbers are pulled from the same WashIndex per-location dataset — Google reviews processed through LLM extraction across 55 dimensions, format classification from each operator's website, and competitive-density analysis. See each chain's full profile — Mister Car Wash / ModWash — for monthly trends, per-location drill-down, executive summary, and anomaly detection.
See our full methodology for the extraction pipeline, validation samples, and aggregation logic.