When should you antifoul a yacht on the Costa Blanca?
Antifouling is one of those jobs that British owners often defer "until next year" — and then arrive in May to find the hull crusted with the kind of growth you only get in warm Mediterranean water. The Costa Blanca is not the Solent. Schedule matters.
How often, honestly
For a boat kept in the water on the Costa Blanca:
- Hard antifoul (typical): every 12–18 months
- Eroding / self-polishing: every 12 months
- Premium coatings (Coppercoat etc.): light scrub annually, full re-coat every 8–10 years
The warm, nutrient-rich water from May to October is the problem. Growth here is faster than Northern Europe — barnacles, calcareous tube worm and a thick green-brown weed that adds noticeable drag within weeks once water temperature passes 22°C.
If your boat moves regularly, you can stretch the interval. If she sits on a berth all summer without moving, you can't.
The best time of year to lift out
The Costa Blanca boatyard calendar has clear pressure points. The right window depends on what kind of owner you are:
October to early December — the most popular slot. Water is cooling, growth is slowing, and you go back in clean for spring. Yards get booked up by August for this window.
February to early March — second-best. Cold enough for paint to cure properly, and you launch ahead of the season. Weather risk is higher (a wet week stalls everything).
Avoid June to September for a planned lift. Yards are full of insurance jobs and emergency repairs, day rates climb, and antifoul applied in 35°C heat flashes off too quickly.
Never antifoul under 10°C or in rain. On the Costa Blanca that mostly means avoiding a handful of January mornings — but it does happen.
Typical boatyard costs (Costa Blanca, 2026)
These are rough guides for a 40ft yacht — every yard quotes differently, and conditions vary.
- Lift, pressure wash, 7 nights on the hard, relaunch: €450–€700
- Hard standing per extra night: €15–€30
- Antifoul (two coats, owner-applied): €400–€600 in paint, plus prep
- Antifoul (yard-applied): €1,200–€2,000 depending on prep needed
- Anode replacement: €80–€200 depending on shaft/hull/rudder count
- Prop polish or speed-prop service: €120–€300
The yards we work with most often around Alicante, Santa Pola, Torrevieja and Águilas are all in roughly the same bracket. Dénia is typically a notch more expensive but with better facilities for larger boats.
What to do in the lift week (even if you can't be there)
If you fly in for the lift, plan for three working days minimum if you are doing the paint yourself. Two if you are paying the yard.
The job list while she's out of the water is short but valuable:
- Eyeball the keel-hull join for any new crazing or movement
- Check sacrificial anodes — they should be 50% wasted, not 90%
- Sound the hull around the keel and through-hulls
- Service or at least exercise all seacocks
- Take photos of the bare hull for your records (insurance loves these)
- Check the cutless bearing, prop shaft play, P-bracket if fitted
- Replace any tired skin fittings — they are €30 parts that sink boats
If you can't be there, a competent caretaker can run all of this and send you the photos. That is, in fact, half of what we do during lift weeks for absentee owners.
The signs you've left it too long
You don't usually need to lift to know. The warning signs are:
- Top speed under engine drops by half a knot or more for the same RPM
- Fuel consumption climbs noticeably on the same passage
- The boat heels more in light airs because the hull is dragging
- Visible growth along the waterline when you look over the side
By the time any of these are obvious, the boat has been dirty for months. Schedule the next lift before you leave.
A practical pattern that works
For owners who fly in two or three times a year, this rhythm tends to work:
- Autumn lift (late October / early November)
- Spring "splash and check" — diver clean of the prop and waterline in April
- Summer diver clean if she's been sitting through July and August
It's not the cheapest pattern, but it keeps the boat performing, the diesel bills down, and avoids the panicked September call when the hull is unrecognisable.
We coordinate lifts, painters and divers across most of the Costa Blanca yards and can meet contractors on your behalf. If you want a quiet hand-over of the lift week instead of flying in for it, drop us a message.