← All guides
Diver & Bottom Cleaning Services
The diver is the most-used contractor in any cruiser's regular service rotation. Bottom cleans, zinc swaps, line clearing, the occasional emergency patch — these are routine work that keeps the boat running between haul-outs. In most cruiser anchorages, a good diver is easy to find through the morning net.
What divers do
- Bottom cleaning: Remove growth, restore antifouling.
- Zinc replacement: Swap sacrificial anodes on shaft, hull, rudder.
- Prop and shaft inspection: Check for damage, line wrap.
- Through-hull inspection: External condition of fittings.
- Lost item recovery: Tools, anchors, kit dropped overboard.
- Emergency work: Temporary patches, line clearing, freeing fouled gear.
- Pre-purchase surveys: Underwater inspection before buying.
What it costs
| Service | Common range (USD) | Notes |
|---|---|---|
| Bottom clean (40 ft, cruiser regions) | $60–150 | Per visit |
| Bottom clean (US, EU) | $150–250 | Per visit |
| Zinc replacement | $30–80 + parts | Per anode |
| Line/anchor recovery | $60–200 | Depends on depth, time |
| Pre-purchase survey | $200–500 | Underwater inspection |
| Emergency repair (patch) | $200–600 | Through-hull, hose failure |
Frequently asked questions
How often to clean?
Monthly tropical; 2–3 months temperate.
Cost?
$60–250 per visit depending on region.
DIY?
Many cruisers snorkel-clean. Tank diving better for thorough work.
What else can divers do?
Inspection, recovery, emergency patches, pre-purchase surveys.
Finding one?
Cruisers' Net on VHF or marina office.

