Dry winter storage & float maintenance
Comprehensive support to preserve the performance and value of your boat
For over 40 years, CNG Agence du Port has been providing boaters with expert winter storage, maintenance, and care for their vessels, whether ashore or afloat.
Our mission: to protect your boat during the off-season, anticipate technical issues, and ensure it's ready to sail as soon as the warmer weather returns.
Dry winter storage: secure storage & thorough maintenance
In-house storage area (0–33 feet)
We have a secure storage area located in the port of Golfe-Juan, dedicated to boats up to 33 feet. Your boat is taken care of as soon as it's hauled out of the water and then placed in our dry dock in a controlled environment.
Storage for larger vessels (> 33 feet)
Thanks to our professional partners based in the Alpes-Maritimes region, we can also accommodate larger vessels while guaranteeing the same high level of service and security.
What a complete winterization includes
Winterization isn't just a period of rest for the boat; it's a strategic time to carry out the checks and maintenance that extend its lifespan.
-> Checks and Safety Measures:
- General inspection of the hull, deck, deck fittings, and underwater hull
- Checking for wear, impacts, or leaks
- Securing the systems (fuel, water, gas, electricity)
- Checking valves, through-hull fittings, strainers, and filters
-> Technical Systems Maintenance:
- Disconnecting, charging, or maintaining batteries
- Checking the electrical system (12V/220V)
- Checking onboard electronics (GPS, depth sounder, instrument panel, etc.)
- Purge the fuel system if necessary
-> Engine and Mechanical Maintenance (depending on needs and model):
- Cooling and flushing
- Draining and replacing filters
- Cleaning the engine compartment
- Visual inspections of belts, anodes, lower units, or IPS shafts
- Lubricating and applying anti-corrosion protection
-> Exterior Maintenance:
- Complete hull and deck wash
- Bilge cleaning
- Inspection of underwater hull
- Boat preparation During the downtime period
Each intervention is logged and scheduled for optimal return to service.
Maintenance afloat: regular monitoring & scheduled interventions
If your boat remains in the water for part or all of the year, our team provides continuous maintenance to prevent any malfunctions.
Regular monitoring during the off-season
-> Systematic checks:
- Checking mooring lines, fenders, and protective covers
- Checking bilge water levels/presence of water in the bilges
- Testing automatic bilge pumps
- Checking batteries and charging
- Reading voltages and diagnosing any anomalies
-> Engine start-ups:
- Ramp-up to prevent fouling
- Checking for leaks (oil, water, fuel)
- Checking for smoke and abnormal noises
- Rotating mechanical components to prevent seizing
-> Routine maintenance:
- Regular exterior washes
- Interior cleaning upon request
- Electrical/electronic checks
- Checking lights, navigation lights, and electrical panel
-> Weather protection:
- Checking biminis, covers, and awnings
- Checking fastenings and wind-sensitive equipment
- Inspection after rough seas
- Your boat is monitored, even when you are away.
Additional Technical Services (Dry & Afloat)
We offer a range of complementary services to centralize all the maintenance of your vessel:
Hull Maintenance & Underwater Maintenance:
- High-pressure cleaning
- Antifouling paint (hull + outdrives or IPS)
- Anode replacement
- Propeller, thruster, trim tab, and shaft line inspections
Engines & Mechanical Systems:
- Inboard, outboard, outdrives, IPS
- Oil changes, filters, spark plugs, impellers…
Mechanical diagnostics and repairs
- Engine cleaning, lubrication, and protective coatings
Structural Work and Fittings:
- Electrical/electronic work
- Carpentry/woodwork/interior fittings
- Plastics, fiberglass (repairs, restoration, sandblasting)
- Upholstery (protection, renovation, custom creations)
Why winterize and maintain your boat with CNG?
- Safety & Reliability: A properly winterized boat experiences less corrosion, engine wear, and electrical hazards.
- Preventing Breakdowns: Regular checks help avoid costly repairs before the season.
- Longevity of Your Boat: Less wear and tear means longer component lifespan.
- Resale Value: A professionally maintained boat inspires confidence and retains a higher resale value.
- Complete Peace of Mind: You get back a clean, inspected boat, ready to sail as soon as the weather warms up.
A Tailor-Made Program for Every Boat
We work with you to develop a personalized winterization and maintenance plan, based on:
- the age of your boat,
- your engine,
- your seasonal usage,
- your sailing frequency,
- your berth.
For any questions or further information, please contact our team and entrust your boat to passionate and experienced professionals.
