Yacht Maintenance Checklist: The Seasonal Breakdown for 2026

If you run a yacht in Florida, you already know the environment eats boats alive. Between the UV exposure, warm-water marine growth, salt intrusion, and hurricane season, there is no coasting on maintenance. Skip one cycle and you are looking at a problem that costs five times what prevention would have.

This checklist is organized the way most professional crews and owner-operators actually think about it: by season, then by system. It assumes a Florida-based vessel, 50 to 120 feet, running year-round. If your boat sits on a trailer in the Chesapeake for six months, your schedule will differ.

Winter Season (December through February): Post-Holiday Reset

Florida winter is peak boating season, which means your boat is getting used hard while northern boats are wrapped in shrink. That usage matters for scheduling.

Hull and Running Gear

  • Diver inspection: Monthly minimum during winter. Water temps in the low 70s slow growth slightly, but Florida never gets cold enough to kill barnacles. Have your dive service check props, shafts, struts, thruster tunnels, and all through-hulls. Expect to pay $3 to $5 per foot for a basic hull clean.
  • Zincs: Check every dive. Replace at 50% erosion, not when they fall off. On a boat with Cummins QSM11s running in Fort Lauderdale water, I have seen shaft zincs last as little as six weeks. The newer Navalloy anodes from Performance Metals outlast standard zinc in warm salt water. Budget $200 to $500 in zinc replacements per quarter depending on vessel size.
  • Cutlass bearings: Check shaft play during diver inspection. More than 1/16-inch play on a 2-inch shaft means it is time. A lot of yards quote $1,500 to $3,000 per bearing installed, depending on accessibility.
  • Strainer baskets: Pull and clean raw water strainers every two weeks during heavy use. Groco ARG series strainers make this easy if your boat has them.

Engines and Mechanical

  • Oil analysis: Pull samples from mains and genset. Send to Blackstone Labs or Polaris (about $30 per sample). This is the single cheapest way to catch a developing problem. You are looking for elevated copper (bearing wear), silicon (air filter breach), or sodium (raw water intrusion). Do this every 250 hours or quarterly, whichever comes first.
  • Fuel filters: Primary Racor filters should be checked weekly and replaced when the vacuum gauge reads 5 inches Hg or more. Secondary filters per manufacturer interval. Parker Racor 900MA series is the standard on most boats in this range.
  • Belt inspection: Check alternator and raw water pump belts for cracking and proper tension. Replace if glazed or cracked. Gates Green Stripe is the standard marine belt. Keep two spares aboard.
  • Transmission fluid: Check level and color. Dark fluid or a burnt smell means an overheating issue. ZF transmissions typically call for ATF Dexron III or ZF Marine Oil.

Electrical

  • Battery bank load test: Test house bank, start bank, and genset batteries with a proper load tester, not just a voltmeter. Lifeline AGM batteries are common on boats this size and typically last 4 to 6 years in Florida. If any cell shows more than 0.5V deviation, that battery is done.
  • Shore power cord and inlet inspection: Look for heat discoloration, pitting on pins, and cracking on the cord jacket. A bad shore power connection can cause a fire. SmartPlug is a worthwhile upgrade over the old twist-lock style. Have your marine electrician do a thermal scan of the main panel if you have not done one in the past year.
  • Bilge pump test: Manually trigger each bilge pump and verify float switch operation. Check the high-water alarm. Replace any Rule or Johnson pump that chatters or fails to prime.

HVAC

  • Sea strainer and raw water flow: Florida winter is the time to service marine HVAC. Pull the strainer, check flow at each air handler. Marine Air and Dometic units need 3 GPM per ton of cooling. Low flow usually means growth in the raw water lines.
  • Condensate drains: Snake condensate lines and flush with a vinegar solution. Clogged condensate drains are the number one cause of water damage complaints I hear about.
  • Refrigerant check: A certified tech should check pressures annually. R-410A systems have mostly replaced R-22 on refitted boats. If you are still running R-22, start budgeting for a conversion ($2,000 to $5,000 per system).

Spring Season (March through May): Pre-Summer and Storm Prep Begins

The water warms fast starting in March. By April, marine growth shifts into overdrive. This is also when you should start thinking about hurricane season, which officially begins June 1 but can deliver named storms as early as May in recent years.

Hull and Bottom

  • Haul-out for bottom paint: If your last bottom job is more than 12 to 18 months old, spring haul is the time. In Fort Lauderdale, expect to pay $25 to $45 per foot for haul, block, pressure wash, and relaunch. Paint is separate and we will cover it in detail in our bottom paint comparison article. Budget $150 to $250 per gallon for quality antifouling paint, and figure 2 to 4 gallons for a 60-footer depending on how many coats you are applying.
  • Through-hull inspection: While hauled, exercise every seacock. If any are frozen, they need to be rebuilt or replaced. Groco and Forespar both make quality bronze ball valves. Marelon (composite) is gaining ground for boats under 60 feet. Replace any hose that is stiff, cracked, or swollen. Use double stainless hose clamps on all connections below the waterline.
  • Running gear alignment: Laser-check shaft alignment while the boat is blocked. A good yard with an Easy-Laser or Pruftechnik rig can verify alignment in under an hour per shaft. Misalignment eats cutlass bearings, packing glands, and transmission seals.

Safety Equipment

  • Life raft service: Annual inspection is required by most manufacturers (Viking, Zodiac, Winslow). Send it out in March so you have it back before storm season. Service runs $400 to $800 depending on raft size and what needs replacing inside.
  • EPIRB registration and battery: Verify your 406 MHz EPIRB registration is current with NOAA. Battery replacement is typically every 5 years on ACR and McMurdo units. New units with GPS run $400 to $600.
  • Fire suppression: Have your fire suppression service inspect engine room fixed systems (FM-200, Novec 1230, or older Halon). Check portable extinguishers, replace any with a damaged gauge or corroded valve. USCG requires a current inspection for vessels with fixed systems.
  • Flare expiration: Check dates on all pyrotechnic signals. Expired flares are not legal for USCG carriage requirements. Orion and Pains Wessex are the common brands. Replace expired stock and keep old flares as backups (clearly marked).

Plumbing

  • Watermaker service: If you have a watermaker (Spectra, Village Marine, or Sea Recovery), do membrane cleaning and preservation if the system has been sitting. Check prefilters and high-pressure pump oil. TDS readings above 500 PPM on a system rated for 200 mean the membrane needs replacement ($800 to $2,000 depending on size).
  • Head overhaul: Rebuild Jabsco or Raritan manual heads annually with a soft parts kit ($40 to $80). Replace joker valves, piston cups, and seals. If you are running electric heads (Tecma, Dometic), check macerator blades and motor draw.
  • Hot water heater: Flush sediment from the tank. In Florida water, calcium buildup can kill a heating element in 2 to 3 years. Isotemp and Raritan are the most common marine water heaters. Check the anode rod and replace if more than 50% consumed.

Summer Season (June through August): Storm Season Is Live

June 1 marks the official start of Atlantic hurricane season. If you have not read our hurricane prep guide, now is the time. Summer in Florida also means afternoon thunderstorms nearly every day, which means constant lightning risk and humidity that attacks everything electronic.

Electrical and Electronics

  • Lightning protection check: Verify bonding connections from the mast or arch to the grounding plate. Corroded bonding straps are worthless. Dynex Riviera makes good marine bonding cable. If you took a strike in the past, have an electrician check every piece of electronics and every transducer.
  • Corrosion control: Summer humidity accelerates galvanic corrosion. Check your galvanic isolator (if equipped) with a multimeter. It should block DC below 1.2V. If you are on a dock with mixed metals and old wiring, stray current corrosion can eat through a bronze through-hull in a single season.
  • Navigation electronics: Update charts on Garmin, Raymarine, or Simrad systems. Check radar operation and AIS transmission (verify your MMSI is broadcasting correctly on marinetraffic.com). Clean display screens with proper optical cleaning solution, not Windex.

Engine Room

  • Raw water pump impellers: Replace annually regardless of condition. A failed impeller can overheat an engine in minutes. Keep spares aboard. Jabsco and Johnson pump impellers run $30 to $80 each. On Caterpillar C-series engines, use genuine Cat impellers as the aftermarket ones rarely fit properly.
  • Exhaust system: Inspect wet exhaust risers, elbows, and hose for deterioration. Centek and Vetus risers have specific service intervals. A failed exhaust riser can flood the engine with seawater through the exhaust valves. This is a $20,000+ problem that a $200 inspection prevents.
  • Engine room ventilation: Clean intake louvers and check blower operation. Summer engine room temperatures in Florida can exceed 150 degrees F without proper ventilation. If your engine room is consistently above 130 degrees F, you need more airflow. Marine engineers can assess and improve ventilation systems.

Interior

  • Mold prevention: Summer humidity in a closed-up boat breeds mold fast. Run the HVAC or a dedicated dehumidifier when the boat is unoccupied. Target 50% relative humidity or lower. Check under mattresses, behind headliners, and inside hanging lockers. Concrobium is the go-to treatment product for most crews.
  • Soft goods inspection: Check upholstery and exterior cushions for mildew and UV degradation. Sunbrella fabric with factory-applied PermaBlock finish lasts 5 to 8 years in Florida sun. Treat with 303 Aerospace Protectant every 3 months.

Fall Season (September through November): Post-Storm Assessment and Refit Season

Hurricane season runs through November 30, but the peak threat window (August through October) is closing. Fall is when most yards get busy with refit work because owners want projects done before winter charter season or the spring boat shows.

Post-Hurricane Check

  • Full vessel inspection: Whether or not a named storm hit your area, tropical weather brings sustained wind, rain, and surge. Walk every inch of the boat. Check for chafe damage on dock lines, stanchion bending, canvas tearing, and water intrusion at hatches and ports.
  • Insurance documentation: If there is any damage, photograph everything before touching it. File claims promptly. Know your hurricane deductible (typically 2% to 5% of hull value on Florida policies). Work with your yacht insurance provider to understand covered versus excluded damage.

Refit Planning

  • Book yard time early: Fall is when you should be scheduling spring or winter refit work. Good yards in Fort Lauderdale (Lauderdale Marine Center, Bradford, Derecktor) book out 2 to 4 months. If you need a full paint job, structural work, or systems overhaul, a late fall booking is critical. Read our refit cost breakdown for budgeting guidance.
  • Project scoping: Work with your yacht manager or captain to prioritize projects by urgency and budget. Get three bids for any job over $10,000. A clear scope of work prevents cost overruns.

Brightwork and Exterior

  • Varnish assessment: Fall is the best time for varnish work in Florida. Lower humidity and cooler temperatures (relatively) in November give the best curing conditions. Epifanes, Awlgrip Awlspar, and Le Tonkinois are the three most common choices among professional crews. Budget 6 to 10 coats for a full strip-and-redo.
  • Teak deck inspection: Check seam compound integrity. Dried-out or missing seams let water under the teak and into the subdeck, causing delamination and core rot. Good teak deck work is expensive ($100+ per square foot for full replacement), so maintaining seams is money well spent.
  • Canvas and enclosures: Inspect all canvas work including biminis, enclosures, and covers. UV-degraded stitching is the first failure point. A professional canvas shop can restitch panels without replacing the entire enclosure. Budget for replacement every 5 to 7 years in Florida sun.

Year-Round Monthly Tasks

Regardless of season, these tasks should be on every month\'s list:

  • Run all engines and the generator under load for at least 30 minutes if the boat has been sitting.
  • Exercise all seacocks (open, close, open).
  • Check all bilge areas for water accumulation and oil sheen.
  • Inspect dock lines for chafe and UV damage.
  • Test VHF radio (Channel 16 check) and verify AIS is transmitting.
  • Check battery charger operation and battery electrolyte levels (if flooded lead-acid).
  • Run the AC system even in winter to keep compressors lubricated.
  • Wipe down stainless steel with a protective polish (Flitz or Collinite).

Frequently Asked Questions

How often should I haul out my yacht in Florida?

For most vessels kept in the water full-time in South Florida, an annual haul-out is the minimum. Boats with hard bottom paint (like Petit Trinidad Pro or Interlux Fiberglass Bottomkote) can sometimes stretch to 18 months if dive cleanings are kept up monthly. Ablative paints (like Micron CSC or Sea Hawk Biocop) perform better between haul-outs because they continuously release biocide as the paint wears. If your boat sits at a dock and rarely moves, growth accelerates and you may need to haul every 8 to 10 months.

What does a typical annual maintenance budget look like for a 60-foot yacht?

The old rule of thumb is 10% of hull value per year, but real-world numbers depend heavily on vessel age and usage. For a well-maintained 60-footer in South Florida, expect $40,000 to $80,000 annually covering: bottom paint and haul ($5,000 to $8,000), engine service and parts ($8,000 to $15,000), electrical and electronics ($3,000 to $8,000), HVAC service ($2,000 to $5,000), safety equipment ($2,000 to $4,000), diver services ($3,000 to $5,000), detailing and cosmetics ($5,000 to $10,000), and miscellaneous repairs ($10,000 to $25,000). These numbers assume professional service, not DIY.

Can I do my own yacht maintenance or do I need certified professionals?

Competent owner-operators handle a lot of routine work themselves: oil changes, filter replacements, zinc swaps, cleaning, and basic troubleshooting. But certain tasks should go to certified professionals. Electrical work above 50V should be done by an ABYC-certified marine electrician. Engine and transmission work beyond basic service needs a qualified diesel mechanic. Propane and LPG systems, fire suppression servicing, and life raft repacking all require certified technicians. If you are doing your own work, at minimum get an ABYC Standards and Technical Information Reports manual as your reference.

What are the most commonly neglected maintenance items on yachts?

From my experience, the top five neglected items are: (1) exhaust system inspection, which gets ignored until a riser fails catastrophically; (2) seacock exercising, where frozen seacocks become an emergency when you actually need to close one; (3) bonding system continuity, which when broken allows rapid galvanic corrosion; (4) fuel tank inspection and fuel polishing; and (5) standing rigging inspection on sailboats, where swage fittings develop invisible cracks. A comprehensive yacht survey every 3 to 5 years catches most of these before they become expensive failures.