The 5 Best Car Washes in Boulder, CO
Part of the Boulder, CO car wash market.
Data updated · May 22, 2026
Ranked by Google review rating across 15 car washes identified by WashIndex's LLM classifier in Boulder, CO, with each location requiring at least 30 customer reviews to qualify (so small-sample outliers don't surface).
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Zz Boulder Mobile Detailing
921 Walnut St, Boulder, CO 80302
5.0100 reviewsDetail Shop Chain · Zz Denver Mobile Detailing $223K AGI ZIP - 🥈2
EcoSteam Detailing Boulder (TWENTY NINTH STREET MALL)
Underground Parking Garage, 1776 29th St Suite 2000, Boulder, CO 80301
4.9181 reviewsDetail Shop Chain · EcoSteam Detailing Vail $150K AGI ZIP - 🥉3
The Works Automotive Detail
2907 55th St #7A, Boulder, CO 80301
4.9130 reviewsDetail Shop $150K AGI ZIP - 4
The Details Shop Of Boulder
6270 Arapahoe Rd STE 5, Boulder, CO 80303
4.9107 reviewsDetail Shop $147K AGI ZIP - 5
Transform Auto Detail
2516 49th St, Boulder, CO 80301
4.962 reviewsDetail Shop $150K AGI ZIP
About Boulder, CO
What is the best-rated car wash in Boulder, CO?
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What are the top 5 car washes in Boulder, CO?
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How is the "best" car wash determined in this list?
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About this ranking
Ranked by Google review rating across LLM-classified car washes in Boulder, CO. Locations with fewer than 30 reviews are excluded to keep small-sample noise out of the ranking. Ties broken by review count. Dealerships, gas stations, and other auto-related businesses that don't primarily operate a car wash are excluded from the pool at the data-prep stage.
See the full Boulder, CO car wash market analysis for every car wash in the city, format mix, operator dominance, ZIP/income breakdown, and more — or our full methodology for the underlying data pipeline.