Freeze The Lake, Not The Engine
Professional boat winterization in Wisconsin. Certified techs, factory-spec fluids, and the same trusted service Popp's customers have counted on since 1994 — built to protect your engine through every freeze.
Winterization Packages
Every boat is different. Pick the package that matches your engine setup — pricing is tailored to cylinder count and horsepower.
Outboard Package
2–6 cyl · 150 HP & upFogging, lower-unit oil change, fuel stabilizer, fresh water flush, and impeller inspection. Sized for mid-to-large outboards from 150 HP up to high-output V8s.
Request QuoteI/O Package
4, 6 & 8 cylinderBlock drain, antifreeze flush, manifold & riser inspection, drive lube change, and engine fogging. Built for stern-drive setups — your block stays crack-free through the deep freeze.
Request QuoteInboard Package
8 cylinder or lessClosed-loop coolant service, raw-water drain, oil & filter, transmission fluid check, and fogging through the carburetor or throttle body. For ski boats, wakeboats, and cruisers.
Request QuotePersonal Watercraft
Jet ski · Sea-Doo · WaveRunnerFlush jet pump, fogging, fuel stabilizer, battery removal, and corrosion protection. Keeps your PWC ready to launch on the first warm weekend of next season.
Request QuoteDone Right Every Time
Every Popp's winterization follows a documented checklist — no shortcuts, no "we forgot the lower unit oil." Here's what's covered in every package:
- Engine fogging — atomized oil coats internal components to prevent rust
- Antifreeze & block drain — full evacuation of raw water, non-toxic AF flush
- Fuel stabilizer treatment — prevents varnish, gum, and ethanol separation
- Lower unit / drive lube change — fresh gear oil, water-intrusion check
- Battery service — disconnect, terminal clean, trickle-charge storage
- Spring-ready report — written notes on anything you should address before launch
Wisconsin Owners Trust Popp's
Family-owned since 1994. Certified Mercury, Yamaha & Volvo Penta technicians. Indoor heated service bays.
Factory-Certified Techs
Mercury, Yamaha, Volvo Penta, and Mercruiser certified — winterization done to OEM spec, not guesswork.
Done On Time
Schedule in September and your boat is winterized before the first hard freeze — no last-minute scramble.
Storage Bundle Available
Combine winterization with indoor or bulk storage and save — one stop, one pickup in spring.
Request Winterization
Tell us about your boat — we'll confirm scheduling and pricing within one business day.