Contact Erwin
Delivering Fun on the Water Since 1978
Find a Location
Erwin Marine Sales

Boat Service

Boat Service in Chattanooga & Guntersville

When it comes to dependable boat service, Erwin Marine Sales stands as the trusted name in Chattanooga and Guntersville. With decades of experience, our factory-certified technicians provide expert repairs and maintenance that keep your boat in peak condition throughout the boating season and beyond.

Our service centers are located right on the water, allowing easy access and prompt turnaround times. Whether you need routine upkeep, diagnostics, or full-scale repair, our dedicated team is here to serve with quality, efficiency, and a passion for boating. We understand the importance of every hour spent on the water, and our goal is to maximize your time doing what you love. That’s why every service we offer is centered around reliability, convenience, and peace of mind.

Request Service

Why Our Boat Service Stands Out

At Erwin Marine Sales, boat service isn’t just a department, it’s a promise. From our skilled technicians to our industry-leading diagnostics, every aspect of your service experience is designed for excellence. We work on all major boat brands, including Sea Ray, Cobalt, Harris, Cruiser Yachts, Malibu, and Axis.

Our certified technicians use the latest tools and OEM-approved procedures to ensure your boat is serviced to factory standards. Every repair, inspection, and tune-up is performed with meticulous attention to detail. In addition to our technical expertise, we pride ourselves on customer service—providing timely updates, honest assessments, and friendly support from the moment you check in to the moment your boat is back in the water.

We treat your investment with the same care we’d give our own. From scheduling to final walkthrough, we aim to build trust with every client, turning first-time visitors into lifelong customers.

FAQ

Boats should generally be serviced at least once a year or every 100 hours of operation, whichever comes first. However, more frequent servicing may be necessary depending on usage and conditions. Annual services typically include oil changes, filter replacements, and thorough inspections of all systems. Additionally, perform basic maintenance checks before each use, such as inspecting the hull, checking fluid levels, and testing safety equipment.

While some basic maintenance tasks can be performed by boat owners, such as cleaning, visual inspections, and simple fluid checks, it’s recommended to have a professional handle more complex maintenance and repairs. Professional technicians have the expertise, tools, and diagnostic equipment to properly service boat engines and systems.

Proper boat winterization is essential to protect your vessel from cold weather damage and ensure it’s ready for the next season. Professionals provide a comprehensive service that includes draining and flushing the engine cooling system, adding antifreeze, changing oil and filters, stabilizing fuel, lubricating moving parts, and properly storing batteries. They use specialized tools and high-quality products, saving you time and ensuring thorough protection against freezing damage and corrosion. Additionally, professional winterization can help maintain warranty coverage and offers peace of mind, knowing your boat is properly prepared for winter.

Comprehensive Boat Service Offerings

Routine Maintenance

From oil changes and filter replacements to fluid checks and engine diagnostics, our preventive maintenance services are tailored to ensure long-term boat health. We offer seasonal maintenance packages designed to prepare your boat for the unique demands of spring commissioning and fall winterization. These services include battery inspections, bilge checks, and complete safety system evaluations. Routine maintenance isn’t just about preventing issues, it’s about optimizing your boat’s performance. A well-maintained vessel offers smoother rides, increased fuel efficiency, and fewer surprises during peak boating months. At Erwin Marine Sales, we keep detailed records of your service history, enabling us to provide proactive maintenance that extends the lifespan of your boat.

Repair & Diagnostics

When something goes wrong, you need fast, accurate solutions. Our advanced diagnostic equipment allows us to quickly pinpoint mechanical, electrical, or structural issues with precision. Whether it’s an overheating engine, a faulty fuel system, or an unexpected leak, we diagnose and fix the problem efficiently to get you back on the water. Our repair capabilities range from minor cosmetic fixes to complex engine rebuilds. We can service sterndrives, inboards, and outboards, as well as troubleshoot everything from navigation systems to onboard HVAC units. If your boat is still under manufacturer warranty, we can handle warranty-approved repairs using authorized OEM parts, preserving your coverage and ensuring peace of mind.

Custom Installations & Upgrades

Whether you’re looking to enhance comfort, safety, or performance, we offer expert installations for your boat. Add a new GPS chartplotter, marine audio system, LED lighting, underwater lights, or depth finders, our team ensures seamless integration and optimal function.

Genuine OEM Parts & Accessories

We believe in using only the highest quality parts to maintain the performance and safety of your boat. Our parts department is stocked with OEM components from leading marine manufacturers, allowing us to perform timely repairs without unnecessary delays. Whether you need a replacement water pump, new propeller, navigation lights, or upgraded throttle cables, we’ve got the parts and the expertise to install them right. Looking for boating essentials? We also stock a curated selection of marine cleaners, safety equipment, fenders, and covers.

OEM parts ensure that every replacement matches factory specs for durability and performance. Combined with our technical knowledge, this commitment means fewer follow-ups, smoother rides, and more confidence every time you launch.

Book Your Boat Service Today

Whether you’re looking for a de-winterization or need a complete engine rebuild, trust Erwin Marine Sales to deliver top-tier boat service. With experienced technicians, factory parts, and unmatched lakeside convenience, we’re here to help you stay on the water longer. Complete the form below to schedule your service appointment or call our service department to speak with an expert. Your boat deserves the best care, let us help you give it just that.

Chattanooga, TN

Parts / Service Request

Fill out the form below to make an appointment for service or to order parts.

"*" indicates required fields

Name*
Location*
Do you need parts or service?*
The best way to contact me is:*
This field is for validation purposes and should be left unchanged.