Carnation Auto Spa vs Trademark Car Wash
Data updated · May 24, 2026
both chains operate 23 locations; Trademark Car Wash is rated higher (4.73★ vs 4.55★); Trademark Car Wash has the lower reviewer-reported damage rate (0.48% vs 1.20%).
Carnation Auto Spa is a local-tier operator and Trademark Car Wash is regional-tier, so they're competing at different scale points. Trademark Car Wash edges ahead on review-weighted rating (4.73★ vs 4.55★, a modest gap). On reviewer-reported damage, Trademark Car Wash runs lower at 0.48% vs 1.20% — a narrow operating-quality gap. The dataset-wide average across all car wash chains is roughly 1–3%.
Carnation Auto Spa operates 23 locations across 1 state (23.0 sites per state on average). Trademark Car Wash operates 23 locations across 8 states (2.9 per state). Carnation Auto Spa is single-state (Texas), so the comparison is most useful for customers and operators in that footprint. Total customer signal is 23,307 Google reviews for Carnation Auto Spa (10,335 LLM-scored) vs 47,876 for Trademark Car Wash (19,691 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 | Carnation Auto Spa | Trademark Car Wash | Winner |
|---|---|---|---|
| Wash Quality | +0.63 | +0.80 | Trademark Car Wash |
| Staff & Customer Service | +0.84 | +0.95 | Trademark Car Wash |
| Wait Time | +0.27 | +0.78 | Trademark Car Wash |
| Per-Wash Price | -0.12 | +0.23 | Trademark Car Wash |
| Equipment Working | -0.46 | -0.44 | Trademark Car Wash |
| Facility Cleanliness | +0.83 | +0.76 | Carnation Auto Spa |
| Membership Value | -0.05 | +0.22 | Trademark Car Wash |
Carnation Auto Spa's strongest aspect in customer reviews is Staff & Customer Service (+0.84); the weakest is Equipment Working (-0.46). Trademark Car Wash's strongest is Staff & Customer Service (+0.95); the weakest is Equipment Working (-0.44). Trademark Car Wash comes out ahead on Wash Quality, Staff & Customer Service, Wait Time, Per-Wash Price, Membership Value; Carnation Auto Spa doesn't have a clear win on any of the 7 pillars.
Trademark Car Wash has the lower cancellation-friction rate (12.0% vs 19.0% of mem-discussing reviews) — a substantial gap. The dataset-wide rate is roughly 10–15%.
Do they operate the same format of car wash?
| Format | Carnation Auto Spa | Trademark Car Wash |
|---|---|---|
| Detail Shop | 4.8% | 1.3% |
| Full Service | 4.0% | 1.8% |
| Hand Wash | 1.1% | 2.5% |
| Express Tunnel | 1.9% | 1.5% |
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.
Carnation Auto Spa is predominantly a Full Service chain while Trademark Car Wash is Express Tunnel. They're not really competing for the same customer occasion — different formats serve different price points, throughput needs, and wash expectations. Customers who care about wash result might pick one; customers who care about speed might pick the other.
Where do Carnation Auto Spa and Trademark Car Wash compete?
Carnation Auto Spa and Trademark Car Wash compete head-to-head in 1 metropolitan statistical area. In short: If customer-rating consistency is the deciding factor, Trademark Car Wash is the safer pick; if avoiding vehicle damage is the priority, Trademark Car Wash runs the lower reviewer-reported damage rate.
About Carnation Auto Spa vs Trademark Car Wash
Carnation Auto Spa vs Trademark Car Wash: which is bigger?
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Which has the higher customer rating, Carnation Auto Spa or Trademark Car Wash?
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Which has the lower damage rate, Carnation Auto Spa or Trademark Car Wash?
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Where do Carnation Auto Spa and Trademark Car Wash 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 — Carnation Auto Spa / Trademark Car Wash — 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.