Marine Seasonal Maintenance

Winterization, spring commissioning, and seasonal care to keep your boat protected year-round.

Boats take on sun, moisture, and movement year after year. Seasonal maintenance keeps your boat protected during winter storage and ready to go when warm weather returns. Cold temperatures can damage engines, plumbing, and electrical systems — but proper winterization prevents costly repairs and keeps you safe on the water.

Winterization Services

Protect your boat during cold months with comprehensive winterization.

Engine Winterization

Flush cooling system, add marine-safe antifreeze, fog cylinders, and stabilize fuel to protect your engine through winter.

Fuel System

Add fuel stabilizer, run engine to circulate. Top off tanks to prevent condensation and fuel degradation.

Fresh Water System

Drain water tanks, water heater, and lines. Add non-toxic antifreeze to protect plumbing and fixtures.

Battery Care

Disconnect batteries, clean terminals, check charge levels. Recommend maintenance charging or proper storage.

Drive & Lower Unit

Drain and inspect lower unit gear oil. Look for water intrusion that indicates seal issues needing attention.

Interior & Cover Prep

Clean interior, remove valuables, set up ventilation to prevent mold. Inspect cover or shrink wrap readiness.

Spring Commissioning

Get your boat water-ready before the season starts.

Engine De-Winterization

Flush antifreeze, check belts and hoses, inspect cooling system, change oil if due. Get your engine ready to run.

Battery Reinstall & Test

Reinstall batteries, load test, clean connections, verify charging system operation. Our electrical specialty.

Fuel System Check

Inspect fuel lines, check filters, test fuel pump. Look for any issues from winter storage.

Electrical Systems

Test all navigation lights, bilge pumps, electronics, and 12V systems. Verify everything powers up correctly.

Fresh Water System

Flush antifreeze from water system, sanitize tanks, test water pump and fixtures.

Safety Equipment Check

Inspect fire extinguishers, flares, PFDs, throwable devices. Verify all required safety equipment is present and current.

Why Seasonal Maintenance Matters

Boats can develop cracks, leaks, electrical issues, or corrosion during downtime. Freezing temperatures and temperature swings create problems that often go unnoticed until your first outing. Seasonal maintenance protects your investment and reduces the risk of breakdowns on the water.

  • Prevent freeze damage — Cracked blocks and burst plumbing are expensive to repair
  • Extend engine life — Proper winterization prevents corrosion and fuel system issues
  • Protect batteries — Marine batteries are expensive; proper care extends their life
  • Catch problems early — Spring commissioning finds issues before they leave you stranded
  • Stay safe — Verify all safety and electrical systems work before heading out

Additional Seasonal Services

Other maintenance we can handle during your seasonal visit.

Charging System Health Check

Test alternator output, battery condition, and shore power charging. Ensure your electrical system is ready for the season.

Electronics Check

Power up and test chartplotter, VHF, AIS, fishfinder, and other electronics. Verify GPS accuracy and connections.

Lighting Inspection

Test all navigation lights, anchor light, interior lights, and underwater lights. Replace bulbs or LEDs as needed.

Bilge Pump & Float Switch

Test automatic bilge pump operation, clean strainers, verify float switch triggers correctly.

Schedule Your Seasonal Service

Don't wait until the last minute. Book your winterization or spring commissioning early to get on the schedule.

Request Service