Monthly is ideal for saltwater boats in Florida to avoid costly buildup. Warm water, barnacle-rich
marinas, and worn bottom paint all speed up fouling—and once growth takes hold, it cuts speed,
burns fuel, and eats through paint and zincs fast. Quarterly may be sufficient in colder climates
or for boats with excellent bottom paint.
That’s why we offer monthly maintenance plans to keep your hull clean, efficient, and protected.
We also have discounted rates for haul-out cleanings.
The most effective method for hull cleaning depends on the condition of your hull and your
location. Professional underwater cleaning performed by trained divers offers thorough removal
of marine growth without the need for dry-docking. Pressure washing above water is suitable for
light surface grime but does not address submerged fouling effectively. Manual scraping or
abrasive cleaning should be done cautiously, by a trained professional, to avoid damaging the
hull finish.
Yes, underwater hull cleaning is a widely used and environmentally friendly option. Certified
divers use specialized tools to safely remove marine growth below the waterline without
removing the boat from the water. This method reduces downtime and avoids the costs
associated with hauling and dry-docking.
Regular hull cleaning improves vessel speed, reduces fuel consumption, minimizes engine strain,
and extends the lifespan of your boat’s finish. Biofouling creates drag that significantly reduces
boat speed and increases fuel consumption. Additionally, it helps maintain compliance with
marina regulations and environmental standards, preventing invasive species spread.
A clean hull can improve speed by up to 30% and reduces fuel consumption by up to 10–20%.
Clean props alone can increase performance by up to 15%.
When performed by experienced professionals using the correct techniques and tools, hull
cleaning will not damage your boat’s paint or gel coat. Improper cleaning methods or harsh
equipment can cause scratches or coating degradation, so it is critical to choose qualified service
providers.
While minor cleaning tasks may be performed by owners, effective hull cleaning—especially
underwater—requires professional expertise, equipment, and safety precautions. Hiring
professionals ensures thorough cleaning without risking damage or personal injury.
Risks include electric shock, low visibility, and wildlife. Some marinas don’t shut off dock
power, which is dangerous for divers.
Additionally, many marinas require insurance to dive in the marinas to clean hulls.
Our divers have shared marinas with bull sharks and other fun critters, so if you’re going to get
insured and get in the water, be prepared for some interesting company!
Marine growth is influenced by far more than just the general water conditions. Even two boats
side by side can experience completely different fouling rates due to:
Hull Paint Type & Age – Fresh, high-quality antifouling paint resists growth better than
older or worn paint. A boat with fading or depleted paint will foul faster.
Boat Usage – Regularly running a boat at cruising speed helps knock off some early-
stage growth. A boat that sits idle for weeks will see buildup much quicker.
Design & Hull Shape – Nooks, crannies, and running gear configurations can create
turbulence or “dead water” spots where growth thrives.
Location in the Marina – Small changes in water flow, sunlight, and depth can make one
slip more prone to growth than another. Areas with lower circulation or more sunlight
tend to foul faster.
Electrical Activity in the Water – Stray current from nearby boats can accelerate
corrosion and even impact marine growth patterns.
Brackish water usually leads to more marine growth than fully saltwater — especially soft
growth like algae and slime.
Here’s why:
Barnacles & hard growth often thrive best in full saltwater, but brackish zones tend to
have a mix of salt- and freshwater organisms, so your hull can get fouled by both types.
Algae, slime, and weed growth often explode in brackish water because it’s nutrient-rich,
warmer, and slower-moving in many areas.
If you’re in an estuary, river mouth, or canal system, you may see a constant film forming
even after recent cleanings.
In short — brackish water can be the worst of both worlds for hull cleaners and boat owners:
softer slime that clogs intakes faster and intermittent barnacle blooms.
What you’re seeing is often biofilm — a thin, slippery layer of algae and microorganisms that
starts forming within hours of cleaning in warm waters. This doesn’t mean the hull wasn’t
cleaned properly — it’s simply nature’s way of reclaiming the surface. In high-growth
environments (especially brackish or warm summer waters), soft growth can reappear quickly,
and water stains or tannins can make the hull look less than spotless almost immediately. The
good news is that with regular scheduled cleanings, this early growth is easily managed before it
develops into heavy fouling, keeping your boat performing at its best.
In-water manual cleaning by trained divers is the most eco-friendly method.
Hull cleaning is harmful to the environment when cleaning is done after heavy growth has
established—this can release larvae or fragments into surrounding water. Hull cleaning may also
be harmful to the environment if done with the wrong tools or over sensitive habitats such as
coral.
Yes—if not done properly. Always clean before relocating the boat between ecosystems.
The best practices for eco-safe hull cleaning include cleaning monthly or before growth matures
and hiring professionals who know the proper manual, non-abrasive tools to preserve paint and
prevent pollution.
Yes, while effective at removing heavy fouling, it can strip toxic paint like copper- or biocide-
based antifouling into the ground or drainage
Yes. A clean hull reduces drag, which:
• Improves fuel efficiency
• Lowers emissions
• Prevents invasive species from spreading
• Reduces the need for harsh cleaning or repainting
Not if you use proper tools and techniques. However:
Avoid wire brushes or metal scrapers on antifouling paint
Don’t clean too aggressively, especially with ablative paint
Sunstate helps how well your paint is holding up. We’ll let you know when it’s wearing thin and
effecting your underwater growth.
If you’re anywhere along Florida’s east coast—from Daytona to Stuart—Sunstate Marine
Services has you covered. We’re based in Indian River County, veteran-owned, and fully insured
at most marinas. Whether you’re in a slip, on a mooring, or need dive support at a private dock,
we come to you.
We’re a small, family-run business—veteran owned, and proud of it. We’ve been doing this kind of work for over 15 years. He’s the one you’ll talk to, and the one who’ll show up to do the job.
We’re not a big outfit trying to rack up appointments. We keep it personal and focused. We take our time, do it right, and make sure you know exactly what was done before we leave.
No upselling, no disappearing after the first visit—just solid work from people who actually care about what they’re doing.
SunState Marine is a veteran-owned, family-operated dive and marine services company based in Florida. With over 15 years of experience, we specialize in hull cleaning, underwater inspections, and private scuba instruction.
We keep things small and personal—focused on doing the job right and building long-term trust with every client. Whether you’re a boat owner, marina, or looking to get certified one-on-one, we’re the folks who show up, do the work, and stand by it.
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