Cleaning Service

Fuel Tank Cleaning & Gas-Freeing

Diesel and gasoline tank cleaning, prep for inspection, and gas-freeing for hot work.

Overview

What's included

Marine diesel and gasoline tanks accumulate water, microbial growth, asphaltene sludge, and scale that no in-line filter will remove. Suncoast Tanks performs full mechanical cleaning of fuel tanks from 50 to 50,000+ gallons, prepares tanks for inspection or hot work, and issues the gas-free certifications shipyards require for welding and cutting.

Benefits

  • Eliminates filter clogging and engine power loss under load
  • Removes biological contamination and sulfate-reducing bacteria
  • Gas-free certification accepted by major Southeast shipyards
  • Restores accurate fuel readings and full rated capacity
  • Documented disposal manifests for vessel records

Common issues we solve

  • Engine shutdown in rough seas as sludge gets stirred up
  • Visible water or dark sediment in the Racor bowl
  • Hot work scheduled in or near fuel tanks
  • Black smoke, low power, or rough running under load

Process

How we work

  1. 01

    On-site assessment

    A senior technician boards the vessel, reviews tank schematics, samples fuel, and documents access points, vents, and baffles before any work begins.

  2. 02

    Containment & safety

    We rig spill-rated containment, gas-detect the space, isolate fuel and electrical systems, and follow confined-space rescue protocols per OSHA 1910.146.

  3. 03

    High-pressure hot water & steam cleaning

    Crew enters or uses extraction equipment to remove sludge, scale, biofilm, and water using high-pressure hot water and steam — fast, thorough, and chemical-light.

  4. 04

    Treatment & documentation

    Surfaces are neutralized, sanitized, and inspected. All waste is captured and manifested to a licensed receiver and you receive a digital report with photos.

Why Suncoast Tanks

Why captains and yards call us

Certified specialists

NACE certified, AMPP members, Certified Belzona and SuperWrap II applicators.

Licensed & insured

Marine liability and pollution coverage accepted at every major Southeast yard and marina.

24/7 response

Emergency dispatch for live leaks, contaminated fuel, and time-sensitive pre-survey work.

Documented turnover

Photos, DFT readings, waste manifests, and gas-free certifications — same-day digital report.

Where We Work

Service areas for fuel tank cleaning & gas-freeing

We dispatch crews across South Florida and the Georgia coast — including:

View all service areas

Reviews

Trusted across the Southeast

"Suncoast cleaned all four fuel tanks dockside in two days — zero spills, every gallon manifested."
Captain M., 112' Motor Yacht
"Their gas-free cert is the one we trust. Hot work cleared the same morning, every time."
Refit PM, Lauderdale Marine Center

FAQ

Common questions

Yes. We test atmospheres with calibrated multi-gas meters and issue gas-free documentation accepted by every major Southeast shipyard for welding, cutting, and other hot work.
Yes. We use non-abrasive techniques and pH-neutral cleaners formulated for marine aluminum so we don't accelerate corrosion or strip the protective oxide layer.
Yes. All recovered fuel, sludge, and rinse water is manifested to a permitted waste receiver. You get a copy of the manifest for your vessel records.
Read the full FAQ

Get a Quote

Need fuel tank cleaning & gas-freeing?

Schedule with our cleaning team — South Florida & Savannah, GA. Free quotes, 24/7 emergency response.