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Best Of · WI

The 4 Best Car Washes in Janesville, WI

The highest-rated car wash in Janesville, WI is Mr. Splash Car Wash at 4.6★ across 212 Google reviews, followed by Super Wash (4.6★) and Woodman's Food Market (4.5★). Rankings cover Janesville, WI car washes with at least 30 Google reviews.

Part of the Janesville-Beloit, WI car wash market.

Data updated · September 26, 2026

Among Janesville, WI's tracked car washes, one operator pulls ahead on customer rating. Mr. Splash Car Wash carries 4.6★ across 212 Google reviews — a 0.40-star gap above the next ranked locations. The full Janesville market analysis at the bottom of the page shows where each ranked operator sits in the broader 9-location landscape.

  1. 🥇1

    Mr. Splash Car Wash

    1608 Milton Ave, Janesville, WI 53545

    4.6
    212 reviews
    Express Tunnel Chain · Mr. Splash Car Wash $76K AGI ZIP
  2. 🥈2

    Super Wash

    25 S Crosby Ave, Janesville, WI 53548

    4.6
    177 reviews
    Self-Serve Bay Chain · Super Wash $65K AGI ZIP
  3. 🥉3

    Woodman's Food Market

    2819 N Lexington Dr, Janesville, WI 53545

    4.5
    5,188 reviews
    In-Bay Automatic Chain · Woodman's Gas Station $76K AGI ZIP
  4. 4

    Auto Spa

    6 S Pontiac Dr, Janesville, WI 53545

    4.2
    106 reviews
    Express Tunnel Chain · Auto Spa $76K AGI ZIP
Frequently Asked Questions

About Janesville, WI

What is the best-rated car wash in Janesville, WI?

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Mr. Splash Car Wash is the highest-rated car wash in Janesville, WI at 4.6★ across 212 Google reviews. The location is at 1608 Milton Ave, Janesville, WI 53545.

What are the top 4 car washes in Janesville, WI?

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Ranked by Google review rating (filtering to locations with at least 30 reviews): 1. Mr. Splash Car Wash (4.6★, 212 reviews); 2. Super Wash (4.6★, 177 reviews); 3. Woodman's Food Market (4.5★, 5,188 reviews); 4. Auto Spa (4.2★, 106 reviews).

How is the "best" car wash determined in this list?

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WashIndex ranks Janesville, WI car washes by their Google review rating, restricted to locations with at least 30 customer reviews so that small-sample outliers don't surface. Where ratings tie, the location with more reviews wins. The pool is restricted to the LLM-classified car-wash formats that actually wash vehicles on site — Express Tunnel, Full Service, In-Bay Automatic, Self-Serve Bay and Hand Wash — so that detailing/tint shops, car dealerships and gas stations with attached washes don't crowd out the actual car-wash operators.

About this ranking

Ranked by Google review rating across 9 LLM-classified Janesville car washes; sites with fewer than 30 reviews are excluded. The clear leader at the top runs well above the next tier.

Mr. Splash Car Wash's lead at the top is durable, but the rest of the market matters too. The full Janesville, WI market analysis covers operator concentration, format mix, and per-aspect customer reads. Full Janesville, WI analysis › · Methodology ›

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