When a marina, yacht club or refit yard asks for an exterior wash on a hull, the first question is rarely "which machine?" It is "what will this cost me per vessel, and who is going to do it?" Those two questions decide whether the work stays in-house or goes to a contractor. Evaluating the cost of yacht exterior cleaning equipment means pricing the whole job — water, labour, downtime, consumables and the risk to the surface being cleaned — not just the invoice for the machine. Here is a practical framework a facility manager can use.
Start with the vessel inventory, not the equipment catalogue
Cost per clean only becomes meaningful once you know how many cleans you owe. Before comparing machines, write down:
- How many hulls, decks and superstructures you clean per month, and the typical length of each
- Whether vessels are cleaned afloat, on a hardstand, or in a covered bay — each changes water handling and setup time
- What the surfaces actually are: gelcoat, antifouling coating, varnished wood, non-skid deck paint, stainless hardware, upholstery
- Who does the work today, and how long a full exterior takes them now
A facility that washes a handful of small craft a month has different economics from a yard turning over large sailing yachts weekly. The inventory tells you whether you need one operator walking a hull with a handheld lance, or a mobile unit that an operator can drive between pontoons.
The five cost lines that decide the real price
1. Water and effluent
A pressure washer running continuously can pass tens of litres a minute down the dock. High-temperature steam works the other way: the PowerDe HW02 steam cleaning machine holds an 80-litre SUS304 tank and produces steam at about 160 °C and 0.8 MPa, so the same cleaning effect comes from a fraction of the volume. In a marina where fresh water is metered and runoff from antifouling hulls has to be contained, lower water use cuts two lines at once — supply and disposal. When you price options, ask each supplier for water consumption per hull, and include the cost of collecting and treating what leaves the dock.
2. Labour hours and setup time
Labour usually dominates. Hot steam softens salt crust, algae, oil streaks and the films that bond to topsides, so scrubbing time falls. But the hidden labour is setup: filling tanks, dragging hoses across a pontoon, waiting for a boiler to come up to temperature. Compare how long the machine takes to reach working steam and how far it travels under its own power. Our driving-style units — the PowerDe PWD02 steam cleaner and the HMW2 — move between berths on their own wheels with dry steam, wet steam and hot-water modes, which matters on a long pontoon where walking a fixed unit costs minutes per transfer.
3. Chemicals
Hull cleaners, degreasers and rinse aids are a recurring purchase with storage, handling and disposal costs attached. Steam cleaning reduces reliance on those products because heat and pressure do the work the detergent would otherwise do. For a facility, this is also a compliance argument: fewer chemicals on a wet dock means fewer spill risks near the waterline and simpler records for whoever audits your environmental paperwork.
4. Surface risk and rework
The most expensive clean is the one that damages the finish. Too much pressure on gelcoat, antifouling coating or varnish causes blistering, etching and peeling that dwarfs the wash cost. When evaluating a machine, look for adjustable steam modes so an operator can use gentler wet steam on topsides and drier steam where more heat is needed. That control is the difference between a cleaning budget and a refinishing budget.
5. Downtime, power and site constraints
Confirm what power your dock actually supplies. The HW02 runs on a 220 V supply with 6 kW of heating power and includes leakage, short-circuit, high-temperature, high-voltage, water-shortage and high-voltage-explosion protection. Battery-fed variants suit areas where no supply is reachable. Then check the service window: a machine that cannot be used while a berth is occupied pushes jobs into evenings and weekends, and overtime shows up in the same column as labour.
A worked comparison you can copy into your own spreadsheet
Do not compare machine prices. Compare cost per vessel over the year you actually operate. Build a simple table for each option:
- Purchase or lease cost, amortised over the expected service life
- Water and effluent handling per hull, at your local rates
- Operator hours per hull, including setup, refill and travel — multiplied by your loaded wage rate
- Chemicals, filters, nozzles, hoses and seals replaced per year
- Scheduled servicing, and the expected cost of a day out of service
Run the same table for the cleaning contractor's current quote. If your in-house figure is within a modest margin, the deciding factors become control of the schedule, protection of owner-finished surfaces, and whether you can clean on the tide and weather windows you choose rather than theirs.
What to ask a supplier before you sign
- Measured steam temperature and pressure at the nozzle, not at the boiler, and how long the machine holds them under continuous trigger use
- Water consumption per hour and per hull, stated as a number you can put in your sheet
- Time from cold start to working steam, and how long the machine runs on one fill
- Which surfaces the manufacturer states the machine is used on, and which modes to use for each
- Spare-parts availability, warranty terms and response time in your region
Shenzhen PowerDe Automation Precision Equipment Co., Ltd. has built cleaning equipment since 2007 and can configure customised steam cleaning equipment for a facility's berth layout, power supply and vessel mix. Send us your monthly vessel count, surface types and available power, and we will spec the model and give you the consumption figures to complete your own cost table.
