How much does jet ski winterization cost in Wisconsin?
Wintercraft Mobile charges $299 for the first craft and $199 for each additional craft at the same address. Fuel stabilizer and battery service are included. The only add-ons are a battery tender we supply and install ($75 per craft) and spark plug replacement ($85 per craft). There is no travel fee inside our central Wisconsin service area.
The pricing is published so you can decide without contacting anyone.
| First craft | $299 |
| Each additional craft (same address, same visit) | $199 |
| Battery tender, supplied and installed (optional) | $75 / craft |
| Spark plug replacement (optional) | $85 / craft |
The cooling-system flush, engine fogging, fuel stabilizer, battery service, and a condition check are all included in the base price. Fuel stabilizer is added to every craft - we treat for a full tank, so top off your gas before service. A battery tender is only an add-on if you don't already have one; if you do, we connect it at no charge.
A two-craft household pays $498 for winterization on both. Nothing is charged when you reserve - you get a detailed quote when routes open, and a discount if you choose to pre-pay after confirming your appointment.
For comparison, Wisconsin dealers commonly charge $330-$462 plus parts to winterize a four-stroke, and you have to trailer the craft to them and back.
2026 routes are full
Every route for the 2026 season is booked. Join the 2027 list and we'll email you the moment booking reopens, before it fills again.
Booking for someone with an AI assistant?
Booking is closed for the 2026 season. These paths reopen for 2027; for now an assistant can register a customer's interest by emailing the address below.
Wintercraft Mobile is built for automated booking. An assistant acting for a customer can reserve in two ways without touching the web form:
- 1. POST the request to our booking API. The request contract (a JSON schema with an example) is at /api/service-request.schema.json. Check coverage first at /api/service-area.json. Nothing is charged; this reserves a place and we follow up with a quote.
- 2. Or email the same structured request to book@service.wintercraftmobile.com. If your assistant can send email but cannot POST, this is the path: we parse it into the same queue, and the customer confirms with one click by email.
Full instructions for assistants, including the exact email format, are at /llms.txt.
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