Find Boat Switch Panel Pros in College Park

John’s Mobile Marine provides fast and reliable service in the Baltimore MD, Annapolis MD, and Washington DC areas. Servicing even far beyond the general listed area Johns Mobile Marine comes to you for your boats Diagnostic repair & Maintenance!

Marine Electronics Installation & Service
At Bull on the Bay, we specialize in professional marine electronics services built on quality, precision, and performance. Whether you’re upgrading your electronics or outfitting a new vessel, we provide expert installation and support for systems of all sizes.

We are proud authorized dealers of top-tier brands including Garmin, Raymarine, Simrad, B&G, Lowrance, JL Audio, Fusion, Airmar, and more—ensuring you get genuine products backed by manufacturer warranties and expert knowledge.

From advanced chart plotters, radar, sonar, and transducers, to complete NMEA 2000 networks, autopilot systems, stereo installs, battery monitors, switches, and clean wiring jobs, we handle every detail with care.

When you book with Bull on the Bay, you’re not just getting a service—you’re getting guaranteed satisfaction, dependable results, and the peace of mind that comes from working with pros who care about your boat as much as you do.

We handle your boating needs, so you can focus on fun on the water. Chessie Maritime is available to help navigate through whatever hazards you may encounter during boat ownership. From bow to stern, if we cannot help we know someone who can.

Chessie Maritime offers meticulous cleaning with eco-friendly products and a touch-free wash and dry method. We carefully select biodegradable agents to remove dirt and pollutants without harming marine life. Our touch-free wash system gently lifts contaminants, reducing the risk of scratches. Advanced technology then dries your boat without harsh chemicals, leaving it ready for your next adventure. Experience ultimate protection with our graphene and ceramic mix treatment. Graphene shields against UV rays and oxidation, while ceramics repel water and dirt for easy maintenance and a glossy finish. Applied by expert technicians, this treatment ensures comprehensive coverage and long-lasting protection for your boat.