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Antifouling pricing, explained — what a bottom job really runs, and why
Boat bottom paint cost in South Florida runs roughly $25 to $100 per linear foot for professional work, before haul-out and prep are added. A routine recoat on a mid-size yacht often lands between $1,500 and $3,000, while a first-time job that needs a barrier coat costs more. Where your number falls depends on length, hull condition, and the paint system you choose.
Definition
bottom paint (antifouling) — A biocidal coating applied below a boat’s waterline to stop barnacles, algae, and other marine growth from attaching to the hull. Most systems release a copper biocide — commonly cuprous oxide — slowly over one to two seasons to keep the underwater surface clean and efficient.
$25–$100
Professional bottom paint cost per linear foot in South Florida
BoatingBasics Online; owner-reported yard quotes
440 sq ft
Coverage from one gallon of Interlux Micron CSC ablative antifouling
Interlux / West Marine product specs
12–24 mo
Typical service life of ablative antifouling in warm water
Jamestown Distributors
Key Takeaways
- 01
Budget $25–$100 per linear foot for a professional bottom job in South Florida, then add haul-out, prep, and relaunch on top.
- 02
The first bottom job — or any that needs a barrier coat — costs more because of sanding, fairing, and epoxy work, not just paint.
- 03
Ablative antifouling suits most South Florida cruisers; hard paint favors high-speed or frequently scrubbed hulls.
- 04
Plan on repainting every 12–24 months here — warm water fouls a hull fast, and neglected growth costs you in fuel, speed, and resale.
- 05
Ask the yard for an itemized estimate that separates haul-out, prep, barrier coat, and paint so you can compare quotes fairly.
What a Bottom Job Costs by Boat Size
Yards quote bottom work two ways: by the linear foot or by the square foot of wetted surface. Per-foot rates in South Florida commonly range from about $25 to $60 for a haul, wash, and two coats, and climb toward $100 when heavy prep or premium paint is involved. Measured by area, expect roughly $6 to $15 per square foot of hull below the waterline. For the complete picture, read Custom Paint Advantages for Florida Yachts.
Real quotes bear this out. Owners report figures like $2,600 for a 26-foot outboard boat and a spread of $1,100 to $5,500 for a 27-footer, depending entirely on paint choice and how much sanding the hull needed. The lesson is simple: length sets the baseline, but condition and paint system decide the ceiling. See Boat engine troubleshooting guide for Florida yacht owners for the full breakdown.
Typical South Florida bottom job by boat length (haul-out plus two ablative coats)
| 30 ft | 1350 |
| 40 ft | 1800 |
| 50 ft | 2250 |
| 60 ft | 2700 |
| 80 ft | 3600 |
Derived from industry per-linear-foot rates (BoatingBasics Online) and owner-reported South Florida yard quotes
What a South Florida Bottom Job Includes
The paint is only part of what you pay for. The quote that reads as one number is really a stack of separate line items, and the yard work around the paint often costs as much as the coating itself. Before you compare two estimates, make sure they cover the same scope — a cheaper quote frequently leaves something out. For the complete picture, read Awlgrip yacht paint job cost.
The line items behind a bottom-job quote
A standard South Florida bottom job bundles yard services, materials, and labor. A single gallon of antifouling covers roughly 400 to 440 square feet, so paint volume scales with hull size — but the surrounding work is where estimates diverge most. Custom yacht paint guide for Florida covers this in more detail.
- Haul-out & blocking
- Travel-lift, pressure wash, and stands — often $400+ before any paint
- Surface prep
- Wash, scuff-sand, and spot fairing of the existing coating
- Barrier coat (as needed)
- Epoxy layer against osmotic blistering — a first-time or periodic cost
- Antifouling paint
- Two coats standard; a gallon covers about 400–440 sq ft
- Waterline & running gear
- Extra coat at the boot stripe; props and shafts detailed separately
- Relaunch
- Splash and lay-day charges to return the vessel to the water
Ablative vs. Hard Bottom Paint
The choice between the two families is really a choice about how the coating leaves the hull. As Jamestown Distributors explains, an ablative self-polishes as it wears while a hard paint leaches biocide from a film that stays intact until it is sanded off. That single difference shapes cost over time far more than the price on the can.
Ablatives rarely need stripping because old coats slough away, which keeps future jobs simpler and cheaper. Hard paints hold up under speed and frequent scrubbing but build up year over year until the hull must be taken back to primer — an expensive reset. For most South Florida cruisers, an ablative is the more economical long-term system. Florida Boat Financing Options: Your 2026 Loan Guide covers this in more detail.
Ablative vs. hard antifouling at a glance
Jamestown Distributors; industry retail pricing
| Attribute | Ablative (self-polishing) | Hard (modified epoxy) |
|---|---|---|
| How it works | Wears away with water movement, exposing fresh biocide | Leaches biocide from a porous film that stays put |
| Typical lifespan | 12–24 months in warm water | Longer between coats, but needs sanding to refresh |
| Buildup | Minimal — old coats slough off | Builds up; eventually must be stripped |
| Best for | Cruisers and most South Florida recreational hulls | High-speed or frequently hauled and scrubbed boats |
| Cost per gallon | ~$150–$300+ for premium ablatives | ~$150–$250 for premium hard paints |
In South Florida’s warm, nutrient-rich water, a hull can grow a fouling layer in weeks — which is why most owners here repaint every 12 to 24 months, not every three or four years.
Mazza MarineThe Factors That Move the Price
01
Length overall (LOA)
Yards price bottom work by the linear foot, so LOA is the single biggest lever. A 40-footer and an 80-footer sit on the same rate card — the larger hull simply carries more wetted surface to prep and coat.
02
Hull condition and prep
A sound, previously painted hull needs only a wash and scuff. Blisters, failing old coatings, or bare gelcoat mean sanding, fairing, and a barrier coat — the work that turns a routine recoat into a project.
03
Paint type and number of coats
Ablative, hard, and hybrid systems differ in price per gallon and coats required. Two coats is standard; a contrasting signal coat and extra coats at the waterline add both material and labor.
04
Barrier coat
An epoxy barrier coat beneath the antifouling guards against osmotic blistering. It is a first-time or every-several-years expense, not part of a routine recoat, and it meaningfully raises the total.
05
Haul-out and yard labor
Travel-lift haul, pressure wash, blocking, lay-day storage, and relaunch are billed separately from paint. South Florida yard rates and lift fees vary by marina and by vessel size.
How Often to Repaint — and Why Florida Is Different
Most South Florida yachts need fresh antifouling every 12 to 24 months, and some owners on heavily used hulls repaint annually. The reason is the water itself: warm, nutrient-rich, and heavily trafficked coastal water grows fouling on any hull far faster than cooler northern harbors. Left unchecked, that growth costs you in fuel, speed, and resale value long before the paint wears out. See Florida Boat Owner’s Glass Enclosure Guide for the full breakdown.
Regular in-water cleaning stretches the interval. Divers typically scrub hulls about once a month in winter and twice a month in summer here, which keeps the ablative polishing evenly and delays the next haul-out. Skipping that maintenance is the quiet way owners end up paying for two bottom jobs where one would have done.
Last updated
Get an itemized bottom-job estimate for your yacht
Mazza Marine handles haul-out, prep, barrier coat, and antifouling under one roof in South Florida — with pricing you can read line by line.
QHow much does it cost to bottom paint a boat?
Professionally, expect roughly $25 to $100 per linear foot in South Florida, plus haul-out, pressure wash, and relaunch charges that often add $400 or more. A routine recoat on a 40-foot hull commonly lands between $1,500 and $2,500, while a first-time job with sanding and a barrier coat runs higher. Boat size, paint type, and hull condition drive the final number.
QHow often should you bottom paint a yacht in Florida?
Most South Florida yachts need fresh antifouling every 12 to 24 months, and some owners repaint annually. Warm, nutrient-rich water accelerates growth, so hulls foul faster here than in cooler regions. Regular in-water cleaning between haul-outs — roughly monthly in winter and twice monthly in summer — stretches the interval and protects speed and fuel economy.
QWhat is included in a bottom job?
A bottom job typically includes the haul-out, pressure wash, blocking, surface prep, two coats of antifouling paint, and relaunch. A barrier coat is added when needed to guard against blistering. Running gear detailing and waterline touch-ups are usually priced separately, so ask for an itemized quote that separates yard labor from paint.
QAblative vs hard bottom paint: which costs more?
Premium ablative and hard antifouling paints sit in a similar price band — roughly $150 to $300 a gallon — so the real cost difference shows up over time. Ablative self-polishes and rarely needs stripping, while hard paint builds up and eventually requires sanding back to primer. For most South Florida cruisers, an ablative is the more economical long-term choice.
QWhy is the first bottom job more expensive?
The first time a hull is painted, the yard must sand or prime bare gelcoat and often apply an epoxy barrier coat before any antifouling goes on. That added prep and material — not the paint itself — is what raises the price. Subsequent recoats usually need only a wash and scuff, so they cost noticeably less.
QDo I need a barrier coat?
A barrier coat is an epoxy layer between the hull and antifouling that resists osmotic blistering. It is recommended for new or previously bare hulls, boats kept in the water year-round, and any hull with a moisture or blister history. It is a periodic expense rather than part of every recoat, but in South Florida’s warm water it is cheap insurance.
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