We provide complete fuel system maintenance to keep your engine running safely and efficiently. Our services include inspection, cleaning, repair, and replacement of fuel lines, tanks, pumps, and filters. We use high-quality, marine-grade components that resist corrosion and meet strict safety standards. Whether you're dealing with clogged filters, leaking lines, or aging fuel tanks, our expert team ensures clean, reliable fuel delivery you can count on.

We restore or replace deteriorated or corroded fuel tanks using marine-grade, corrosion-resistant materials designed to match your vessel’s needs. To help prevent internal and external corrosion, we ensure proper ventilation and airflow within the tank locker to minimize trapped moisture and salt air exposure. Each tank installation is carefully grounded and bonded to reduce galvanic corrosion, protecting metal components from electrochemical damage caused by contact with saltwater and dissimilar metals. Our approach extends the life of your fuel system and supports long-term vessel integrity.

Using advanced composite techniques like carbon fiber vacuum bagging, we reinforce tanks and compartments with high-strength materials for long-term durability.

Our team safely installs access ports even in volatile gasoline tanks, using spark-proof, explosion-safe equipment in full compliance with marine safety standards.

We perform calibrated pressure testing to verify tank integrity, ensuring safety and leak-free operation.

Full service for fuel filtration systems, including precision rebuilds of primary filters and high-quality filter replacements.

Lab-grade fuel analysis detects water, sediment, and microbial contamination — allowing for proactive treatment.

• Fuel Tank Cleaning
  We eliminate sludge, debris, and microbial growth that compromise fuel quality and engine performance.
• Advanced Tank Cleaning Technology
  Our equipment goes far beyond standard industry polishers — delivering well over 100% more cleaning power. These tools are highly specialized, designed for in-tank use with proprietary techniques developed over decades. This level of technology is not accessible to newcomers in the industry and requires years of training and hands-on experience to operate safely. Improper use could result in severe vessel damage and environmental risk. For this reason, most jobs are performed at under 100% capacity to ensure safe operation — while still providing unmatched tank cleaning performance,
• Professional Fuel Polishing
  Advanced filtration and polishing equipment restore fuel clarity and remove contaminants — protecting engines and fuel systems.

We fabricate and install custom onboard fuel polishing systems, giving you the power to manage fuel purity independently. Every system is tailored to your vessel, with clean, professional integration of pumps, filters, manifolds, and controls. Systems are designed, fabricated in-house, and installed to the highest marine safety and performance standards.

• Custom Transfer System Design & Installation
  Whether you need fuel routing for redundancy, long-range capability, or multi-tank systems, we design tailored onboard fuel transfer solutions.
  
  • Multi-tank switching
  • Digital or manual controls
  • Failsafe return management
  • Commercial- and yacht-grade scalability
• System Integration & Commissioning
  Seamless integration between transfer, polishing, and filtration systems ensures reliable flow control, safety, and operational efficiency.

• Fiberglass Deck Repair
  We provide structural and cosmetic fiberglass repairs using premium marine-grade materials for decks, hatches, and access panels.
• Custom Fuel Manifold Fabrication
  Engineered for precision and control, our custom manifolds offer clean, efficient fuel routing — ideal for complex or multi-engine configurations.

• 30+ Years of Specialized Marine Experience
  We’re experts in marine fuel systems — not generalists. Our work reflects decades of deep, focused knowledge.
• Industry-Leading Tools & Techniques
  From composites to digital diagnostics, we invest in the best to give you the best.
• Non-Invasive Work Practices
  Your boat stays protected — our tools never touch finished surfaces directly.
• Transparent, Ethical Service
  We deliver what we promise. No shortcuts. No surprises. Just quality you can count on.

Whether you're preparing for extended cruising or optimizing a commercial vessel, FUEL TEC Key West delivers unmatched results grounded in safety, expertise, and innovation.