Expert Boat Maintenance & Repair
About Precision Marine
At Precision Marine, we believe boat ownership should be about enjoying time on the water—not worrying about maintenance and repairs.
We are a full-service marine maintenance and repair company dedicated to keeping your boat reliable, safe, and performing at its best. From routine maintenance and seasonal services to diagnostics, repairs, and fuel injector testing and cleaning, we provide the expertise and attention to detail your investment deserves.
With a spacious, secure shop and yard, certified marine experience, and a commitment to honest service, we take pride in doing the job right the first time. Whether you’re preparing for salmon season, maintaining your family wake boat, or keeping your fishing vessel in peak condition, our goal is to deliver dependable workmanship and clear communication every step of the way.
Precision Below Deck. Confidence Above.
Serving boat owners throughout California’s Delta region and surrounding communities, we’re here to help you spend less time worrying about your boat and more time enjoying it.
Safety First
We understand that safety is paramount when it comes to boating. Our team is trained to uphold the highest standards, ensuring every maintenance task is performed with care and precision.
Detailing Excellence
Our detailing services restore your boat’s shine and protect its surfaces. We use top-quality products to give your vessel the care it deserves, inside and out.
Exceptional Customer Care
At Precision Marine LLC, we believe in building lasting relationships with our clients. Our friendly staff is always ready to assist you with scheduling appointments or answering any questions you may have about our services.
Boat Maintenance Tips
Seasonal Preparations
Emergency Repairs
Meet Our Experts
Roy Woltkamp, Head Technician and Owner
With over 15 years of experience in being a mechanic and 8 years in specifically boat maintenance, Roy is passionate about ensuring every vessel is in top condition. His attention to detail and commitment to safety sets the standard of our motto, "Precision below deck, confidence above."