Marina hull cleaning and mooring checks

Offer in-water hull cleaning, prop checks and mooring inspections to boat owners and marinas during the boating season.

Diver in helmet inspecting a submerged structure underwater.
Startup costC$8k to C$40k
Monthly revenueC$3k to C$15k
Time needed15+ h/week
First incomeWeeks
  • C$8k-40k
  • Part-time
  • Out and about
  • Licence or permit needed

Estimates for a small start in Canada, not guarantees.

What it is

A seasonal diving service for moored boats. It covers hull and propeller cleaning, zinc anode changes, mooring line and chain checks, and recovery of lost items, all done in the water without hauling the boat out.

Your first three steps

  1. Confirm your diving certification meets your province's rules for paid underwater work, and complete any extra training needed
  2. Visit nearby marinas and yacht clubs to ask what they need and whether they have approved contractor rules
  3. Price a basic kit and insurance, then offer a few discounted first cleans to collect reviews and referrals
Who pays

Recreational boat owners, marinas, yacht clubs, charter and tour operators, and small commercial vessel owners.

How it makes money

Priced per boat, usually by length, for hull cleaning, plus fixed prices for anode changes and mooring inspections. Seasonal contracts with marinas bring repeat work.

Skills that help
  • Certified diver with commercial training
  • Boat and propeller knowledge
  • Customer service
  • Scheduling around tides and weather
Watch out for
  • Paid diving, including scuba, may fall under provincial occupational health and safety rules on crew size and standby divers, so check before you start
  • Some marinas and harbours restrict in-water hull cleaning or require approved contractors, so check local rules and environmental guidelines on paint and fouling
  • Commercial general liability and marine insurance are important, as damaging a boat or propeller is a real risk
  • Work is seasonal in most of Canada, so expect little income in winter
  • Cold water, currents and boat traffic add safety risks, so plan with a tender and good procedures

Deep research report · Canada

Everything you need to start: marina hull cleaning and mooring checks

Researched with live web search for Canada: real startup prices, the licences and rules, what others charge, a break-even example, how to find your first customers and a 30-day launch plan. With sources.

  • Startup costs with real prices
  • Licences, registration and rules
  • Pricing: what others charge
  • Break-even example
  • Finding your first customers
  • 30-day launch plan
  • Risks and how to reduce them
Ready in about 2 minutes · one-off payment, tax included

See a full sample report

Questions people ask

How much does it cost to start a hull cleaning diving business?

Startup costs are estimated at typically around $8,000 to $40,000, depending on your diving gear, tender boat and equipment. Commercial general liability and marine insurance are important, so check what cover you need.

How much can a marina hull cleaning diver earn?

Monthly revenue is typically estimated at around $3,000 to $15,000, depending on how many boats and marinas you serve. Work is seasonal in most of Canada, so expect little income in winter.

What rules apply to commercial hull cleaning by diver in Canada?

Check whether provincial occupational health and safety rules cover paid diving, including crew size and standby divers. Some marinas and harbours restrict in-water hull cleaning or require approved contractors, so check local rules and environmental guidelines on paint and fouling.

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