
Your Trusted Marine Boat Mechanic in Port Jefferson
We Keep Your Boat Afloat, While You Enjoy The Waves
At Port Jefferson Marine Maintenance, we understand that your boat is more than just a vessel. Whether you’re enjoying a sunny day on the Long Island Sound or gearing up for a long-haul trip, the last thing you need is an unexpected breakdown.
From Engine Repairs
to Seasonal Maintenance…
…we handle all the essentials to keep your boat in peak condition. Whether you need Mercury, MerCruiser, Beta, Yanmar, Suzuki, Yamaha or more serviced, our technicians are equipped to tackle the job. Our team is is Mercury and MerCruiser stern drive and inboard certified and ready to assist boaters with everything from outboard motor repairs to boat hull maintenance—all with the convenience of marine mobile service, so you never miss a day on the water.
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Marine Engine Repairs
From outboard motor diagnostics to complete engine overhauls, our certified technicians specialize in servicing Mercury, MerCruiser, Yamaha, Honda, and Volvo engines. As Mercury and MerCruiser stern drive and inboard certified specialists, we ensure your engine runs smoothly and reliably, so you can focus on enjoying the water.
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Seasonal Boat Maintenance
Keep your boat in peak condition year-round with our comprehensive seasonal maintenance services. Our expert team handles everything from winterizing and bottom painting to prepping your boat for summer adventures. With attention to detail and thorough inspections, we ensure your boat is always ready for the water.
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Mobile Marine Services
Convenience is key. Our mobile marine service team brings expert repairs and maintenance directly to your dock or marina throughout the boating season, saving you the hassle of transport. From engine repairs to hull cleaning, we provide reliable on-site service, so you can focus on enjoying the water without interruption.

Secure Boat Storage for Every Season
Keep your boat safe year-round with our secure storage options. Whether you need winter storage to protect your vessel during the off-season or a safe place for short-term storage, we’ve got you covered. Our facility ensures your boat is stored safely until you’re ready to hit the water again. From hauling your boat to our location to prepping it for storage, our team handles every step with care and efficiency.
Local Boat Hauling Made Simple
Our local boat hauling service makes moving your vessel stress-free. Whether it’s bringing your boat back to your dock or marina or transporting it to our facility for repairs or maintenance, we’re here to help. We specialize in short-haul services—not long-distance trips—so you can rely on us for local moves that fit your schedule. With our factory-trained technicians, your boat is always in good hands.
Weatherproof Work, All Year Round
Our dedicated workspace allows us to perform boat repairs and maintenance in any weather. rain or shine, our team stays on schedule, keeping your vessel in top condition without delays. This all-weather solution ensures we provide reliable service, even during the harshest conditions, so your boat is always ready for the water.
Load Rite Trailer Dealer & Repair Services
We are proud to be an authorized Load Rite trailer dealer, offering high-quality trailers built to last. Whether you’re looking for a new trailer or need repairs on your existing one, our team is equipped to handle it. From lighting and wiring repairs, to brake and tire replacements, we provide full-service trailer maintenance to keep your boat safely on the move.

















Let Us Handle The Heavy Lifting
Let us take care of your boat, so you can focus on making waves
We’re not just experts in repairs, we also offer services like boat electronics installation, detailing, and more. With us, you’ll be confident knowing that your boat is ready for the open water—always.