Frequently Asked Questions

• Hook up and charge batteries.
• Install all drain plugs & hoses.
• Check navigation lights, horn, gauges, and fluid levels.
• Top off fluids as needed.
• Final Activation to run the engine on hose and clean engine of non-tox antifreeze. Bring the engine up to temp. Test all safety items.
• Gage water tests all boats to ensure proper system performance, check shifting, and engine cooling.

• Winterization protects your boat and engine from freezing temperatures during storage in the winter months.
• Summerization reverses the winterization process and ensures the engine is running properly and ready for use.

Please contact our service department for more information regarding warranties. Email warranty@gagemarine.com or call 262-740-2628 x466.

Shop supply and other charges cover all the items and supplies used to service your boat that are not listed under parts. These include basic mechanical cleaning products, lubricants, sealants, solvents, small hardware, shop towels, touch up paints, miscellaneous paper products/labels, miscellaneous tape, wire ties/wire loom, small batteries, etc.

Environmental fees cover the disposal of all materials used to service your boat. These disposals include oil, filters, batteries, miscellaneous fuels, hazardous materials, combustibles, solvent, etc.

Absolutely. Our certified technicians work on Mercury, Ilmor, Volvo Penta, Yamaha, and more. We provide full mechanical service, winterization, summerization, and even fiberglass and canvas repair.

Yes! We stock marine supplies and offer pier and lift installation and repairs across Wisconsin—making us your one-stop lakeside resource.

We’re located in Lake Geneva, Green Lake, Minocqua, plus a pop-up lakefront showroom at PIER 290 in Williams Bay. All three locations provide boat sales, service, and facilities for storage.

Of course! We offer water demos and test drives by appointment. Contact any of our locations to schedule a ride and find the right fit.

Yes! Our Boat Club program (May 1st–October 1st) lets you access a fleet of boats without ownership—reserve online, show up, and enjoy worry‑free boating.

Yes—every location offers secure indoor/outdoor storage. Plus, our In/Out Valet service in Williams Bay includes cover, launch, fueling, and return—so your boat’s always ready to go.

Definitely. Our team can help you custom-build your dream boat with the colors, features, and performance package you want. We’ll work with the manufacturer and keep you updated every step of the way.