ModWash vs Splash Car Wash Express
Data updated · May 24, 2026
ModWash is larger (127 vs 69 locations); ModWash is rated higher (4.85★ vs 4.61★); ModWash has the lower reviewer-reported damage rate (0.83% vs 1.64%).
ModWash is a national-tier operator and Splash Car Wash Express is regional-tier, so they're competing at different scale points. ModWash edges ahead on review-weighted rating (4.85★ vs 4.61★, a modest gap). On reviewer-reported damage, ModWash runs lower at 0.83% vs 1.64% — a modest operating-quality gap. The dataset-wide average across all car wash chains is roughly 1–3%.
| Metric | ModWash modwash.com | Splash Car Wash Express splashcarwashes.com |
|---|---|---|
| Locations | 127 12 states | 69 4 states |
| Reviews | 182,068 70,105 LLM-scored | 59,737 20,777 LLM-scored |
| Avg rating | 4.85 | 4.61 |
| Damage rate (lower better) | 0.83% | 1.64% |
| Membership cancellation friction (of mem-discussing reviews) | 12.4% | 13.7% |
| Dominant format | Express Tunnel | Full Service |
ModWash's footprint covers 127 locations in 12 states (10.6 sites/state). Splash Car Wash Express operates 69 locations across 4 states (17.3 per state). Splash Car Wash Express has a denser per-state footprint (17.3 sites/state vs 10.6 for ModWash), suggesting a more saturated regional strategy. Total customer signal is 182,068 Google reviews for ModWash (70,105 LLM-scored) vs 59,737 for Splash Car Wash Express (20,777 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 | ModWash | Splash Car Wash Express | Winner |
|---|---|---|---|
| Wash Quality | +0.75 | +0.67 | ModWash |
| Staff & Customer Service | +0.94 | +0.86 | ModWash |
| Wait Time | +0.64 | +0.70 | Splash Car Wash Express |
| Per-Wash Price | +0.24 | +0.11 | ModWash |
| Equipment Working | -0.33 | -0.34 | ModWash |
| Facility Cleanliness | +0.79 | +0.89 | Splash Car Wash Express |
| Membership Value | +0.25 | +0.34 | Splash Car Wash Express |
ModWash's strongest aspect in customer reviews is Staff & Customer Service (+0.94); the weakest is Equipment Working (-0.33). Splash Car Wash Express's strongest is Facility Cleanliness (+0.89); the weakest is Equipment Working (-0.34). ModWash comes out ahead on Per-Wash Price; Splash Car Wash Express doesn't have a clear win on any of the 7 pillars.
ModWash has the lower cancellation-friction rate (12.4% vs 13.7% of mem-discussing reviews) — a modest gap. The dataset-wide rate is roughly 10–15%.
Do they operate the same format of car wash?
| Format | ModWash | Splash Car Wash Express |
|---|---|---|
| Full Service | 3.6% | 2.4% |
| Express Tunnel | 2.1% | 3.2% |
| Detail Shop | 0.4% | 2.9% |
| Hand Wash | 1.5% | 1.4% |
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.
ModWash (Express Tunnel) and Splash Car Wash Express (Full Service) sit in different format buckets, so the comparison is between operating concepts rather than between chains doing the same thing.
Where do ModWash and Splash Car Wash Express compete?
ModWash and Splash Car Wash Express operate in entirely separate metro footprints across the markets we cover. 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, ModWash has more sites to choose from.
About ModWash vs Splash Car Wash Express
ModWash vs Splash Car Wash Express: which is bigger?
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Which has the higher customer rating, ModWash or Splash Car Wash Express?
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Which has the lower damage rate, ModWash or Splash Car Wash Express?
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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 — ModWash / Splash Car Wash Express — 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.