Two hulls, one bill — and it should be a bill you can calculate yourself before a diver ever touches your boat. Catamaran owners calling around Miami for a bottom cleaning run into per-hull pricing, vague “multihull surcharges,” and quotes that grow once the diver sees the beam. We do it differently: one per-foot rate, priced by length overall, and it covers both hulls. A 45-ft sail cat costs exactly what a 45-ft monohull costs. No surcharge, no per-hull math, no renegotiation at the dock.
Aqua Pro has been cleaning boat bottoms in Miami waters since 2004 — sail cats, power cats, and the charter cats that keep Biscayne Bay busy every weekend. Our experienced, licensed and insured divers come to your slip or dock anywhere in Miami-Dade or Broward, clean entirely in the water with no haul-out, photograph everything before and after, and you pay after the work is done.
Catamaran Cleaning Pricing: One Rate, Both Hulls
Our rates are public — the same numbers posted on our hull cleaning page apply to multihulls:
| Boat length | Rate | Example |
|---|---|---|
| 20–50 ft | $4 per foot | 42-ft sail cat: $168 |
| 60 ft and up | $5 per foot | 64-ft power cat: $320 |
Length overall is the only number that matters. Not length times two hulls. Not a wetted-surface estimate. Not a beam adjustment because your cat is 24 feet wide. Both hulls — outboard sides, inboard sides facing the tunnel, and everything hanging below them — are the job. On a monthly maintenance plan the rate drops further and cleanings are auto-scheduled, so the bottom never gets bad enough to slow you down.
Why no catamaran surcharge? Because surcharge games are how dive services burn through customers. A rate you can verify on our website before booking is worth more to us over twenty years in this business than an extra forty bucks squeezed out of a Lagoon owner once.
Why a Catamaran Bottom Is a Different Job
A cat is not just a wide monohull. There are four hull sides to scrape instead of two, two sets of running gear, twice the zincs, and a tunnel between the hulls that separates careful divers from fast ones.
The tunnel and bridgedeck clearance
The inboard faces of both hulls foul exactly as hard as the outboard faces — fouling doesn’t care which side of the hull it’s on, only that it sits below the waterline. But the inboard faces are the surfaces a rushed diver is most tempted to shortchange, because the working space between the hulls is tight and dim, especially on cruising cats with low bridgedeck clearance. Our divers work the tunnel with the same wide-blade hand scrapers they use on the outboard sides, full length, bow to stern. When you get your after photos, you’ll see the inboard surfaces in them — that’s the point of photographing every job.
Shallow draft means faster growth
Most cruising cats draw somewhere between three and four and a half feet. That’s great for the Bahamas, and it’s great for fouling: the entire bottom sits in the warmest, sunniest layer of the water column, which is exactly where marine growth is most aggressive. In Miami, where the water never gets cold enough to slow anything down for long, a shallow-draft cat fouls noticeably faster than a deep-keel monohull berthed in the same marina.
The haul-out problem cats have
A 24- to 26-foot beam disqualifies your boat from a large share of the travel lifts in South Florida. The yards that can lift a wide cat know it, charge accordingly, and book out. In-water cleaning makes the whole question disappear: the boat stays in the slip, there’s no yard bill, no transport day, no waiting on lift availability. For most catamaran owners in Miami, divers aren’t the cheap alternative to hauling — they’re the only practical way to handle routine bottom maintenance.
Sail Cats: Clean Hulls Are Boat Speed
A cruising cat sails on light displacement and low drag, and a layer of slime takes that away faster than most owners expect — you feel it as a knot or more gone at the same wind angle, and a boat that won’t tack like it used to. A bottom cleaning is the cheapest performance upgrade a sail cat can buy.
Sail cats also concentrate maintenance points below the waterline: saildrive legs that depend completely on healthy anodes, folding or feathering props with moving parts barnacles love to jam, and minikeels or daggerboard cases that collect growth. Our divers detail props with small hand scrapers — never brushes, which smear growth around and chew up antifouling — and check anode condition on every dive. Worn zincs get flagged in your photo report, and zinc replacement is handled in the water on the same visit.
Power Cats: Fouling Shows Up at the Fuel Dock
Miami’s power cat fleet — from offshore fishing cats to the big day-charter platforms — pays for fouling in fuel. Drag from a dirty bottom forces more RPM to hold the same cruise speed, and on a twin-engine boat that math runs up fast. The first sign is usually a boat that feels heavy out of the hole and won’t reach the cruise numbers it hit all winter.
Power cats also carry two of everything below the waterline: two props, two sets of running gear, two rounds of zincs. Propeller cleaning and polishing and running gear cleaning happen on the same dive, and if a wheel needs to come off, we handle propeller removal and installation in the water too.
Charter Cats: Cleaning on Turnaround Time
Miami’s charter cats work harder than any private boat in the bay — back-to-back bookings, stacked weekends through the season, and no slack in the calendar for a yard visit. We clean charter cats at the slip between trips, scheduled around your bookings rather than ours, so the boat is ready when the next group steps aboard.
For charter operators, the documentation matters as much as the cleaning. Every job comes with before and after photos that managers keep as maintenance records, and payment is after service — nobody prepays for a fleet. Monthly plans put the whole fleet on an automatic schedule at a discounted rate. And when insurance or a survey requires it, our underwater inspections produce the photo and video documentation underwriters ask for, without hauling the boat.
We already service the marinas where Miami’s charter cats live, including Miami Beach Marina and Dinner Key Marina.
What Every Catamaran Cleaning Includes
- Both hulls, all four sides — outboard and inboard tunnel faces, bow to stern, including the waterline ring
- Hand scrapers, never brushes — wide-blade scrapers for hull surfaces, small scrapers for props and tight spots
- Zinc anode check — condition noted on every dive, replacement available on the same visit
- Before and after photos — every job, every time; you see what was there and what came off
- Pay after service — you pay when the work is done, not before
Where We Work
Aqua Pro is a service-area business: divers come to you at 60-plus marinas and private docks across Miami-Dade and Broward — Coconut Grove and Dinner Key, Key Biscayne, Miami Beach, Aventura, and up through Fort Lauderdale, including Bahia Mar and Pier Sixty-Six. If your cat floats somewhere in the two counties, we can almost certainly get a diver to it. See the full service area for details.
How Often Should a Catamaran Be Cleaned in Miami?
Monthly, for most boats. Miami water stays warm year-round, growth never really stops, and a shallow-draft cat spends its whole life in the layer of water where fouling moves fastest. Stretch the interval and you graduate from soft slime — quick to remove, easy on the paint — to hard barnacle growth that takes longer, costs more bottom-paint life, and steals performance the entire time. The monthly plan exists for exactly this reason: discounted rate, auto-scheduled visits, and a bottom that never gets bad in the first place.
Get Your Cat Cleaned This Week
The quote math is simple: boat length times the rate, both hulls included. Book through our booking form in about two minutes, or message us on WhatsApp for an instant quote — it’s the fastest way to reach us.
Calls: (305) 978-1440 · WhatsApp (instant quotes, fastest response): (786) 756-0304
Pay after the service. Before and after photos on every job. Both hulls, one honest rate.
Frequently Asked Questions
Do you charge extra to clean a catamaran's two hulls?
No. We price by boat length — $4 per foot for boats 20–50 ft, $5 per foot at 60 ft and up — and that rate covers both hulls, inboard and outboard surfaces included. A 45-ft catamaran costs the same as a 45-ft monohull. There is no multihull surcharge and no per-hull pricing.
How much does catamaran bottom cleaning cost in Miami?
At $4 per foot, a 40-ft cat runs $160 and a 50-ft cat runs $200. Boats 60 ft and up are $5 per foot, so a 64-ft power cat is $320. Monthly maintenance plans are discounted and auto-scheduled. You pay after the service, and every job includes before and after photos.
Do I need to haul out my catamaran for bottom cleaning?
No. Our divers clean in the water at your slip or dock anywhere in Miami-Dade or Broward. That matters for cats especially — wide beams won't fit many local travel lifts, which makes haul-outs expensive and hard to schedule. In-water cleaning skips the yard entirely, and your boat never has to move.
How often should a catamaran bottom be cleaned in Miami?
Monthly works for most boats here. Miami water is warm year-round, so growth never really stops, and shallow-draft cats sit entirely in the warm, sunlit layer where fouling grows fastest. Our monthly maintenance plans are discounted and auto-scheduled, so the bottom stays clean without you tracking dates.
Can you clean charter catamarans between trips?
Yes. We work with Miami charter cats on tight turnarounds, cleaning at the slip between bookings and scheduling around your calendar. Every cleaning is documented with before and after photos that charter managers use for maintenance records, and you pay after each service. Monthly plans keep multi-boat fleets on a fixed schedule.
Do you clean the inboard hull surfaces and the tunnel?
Yes, on every job. The inboard faces of both hulls foul just as hard as the outboard sides, even on cats with low bridgedeck clearance where the space is tight. Our divers scrape them full length with wide-blade hand scrapers — never brushes — and the after photos show the inboard surfaces so you can verify the work.
