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10 of these 24 mechanics are in Crystal Lake; the rest are in Libertyville, Berwyn and Elk Grove Village.
Of the 24 mechanics listed here, 10 are in Crystal Lake itself; the others are in towns including Libertyville (4), Berwyn (2), Elk Grove Village (2).
Ratings range from 4.3 to 5.0 across 942 reviews; 8 mechanics have 50 or more reviews; 22 are rated 4.5 or higher.
In structured review feedback, customers of these mechanics most often flagged professionalism (100%), value (100%) and quality (93%).
10 of the 24 mechanics have a website on file.
Figures are counted over the mechanics on this page from public listings and company websites collected in 2026; distances are straight-line; hours and prices change, so confirm before you visit.
The 24 shops on this page carry out emissions and inspection work in and around Crystal Lake, IL. What each one says about its station license, hours and retest policy comes from its own website; ratings and quotes come from public reviews.
The registration or the renewal notice, and the keys to everything on the car including the locking wheel nut key. Turn up with a warmed-up engine and enough fuel in the tank. If the battery was disconnected recently, say so, because that alone can end the visit.
Warning lights and readiness monitors lead the list, and behind them sit oxygen sensors, catalytic converters, evaporative system leaks and a gas cap that no longer seals. A loose or cracked gas cap is the cheapest failure there is and one of the most common. Tighten it and drive a few days before the test.
Rarely. The test is the small number in this equation and the repairs are the large one, so what matters is whether you trust the place that reads the result. Convenience counts too, since a failure means coming back. Pick somewhere you can reach again on a workday.
Inside your own state, yes. 10 of the 24 shops here are in Crystal Lake and the rest are the nearest listed, shown with their own city. Crossing a state line does not work, because the test has to be accepted by the state that registers the car.
Excerpts from public reviews of the mechanics listed on this page.
