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Mobile maintenance diesel, gas, and house systems. Serving eastern CT from New Haven to Stonington.

-Electrical trouble shooting
-House & Plumbing systems
-Routine Maintenance
-Battery testing and replacement

At Stateline BoatWorks we handle all jobs- big and small. Whether you need service on your Honda, Suzuki, Yamaha, or Tohatsu outboard, or a full service on your Mercruiser or Volvo sterndrive package, we are your choice for repairs in Southern New England! We can take care of everything from oil changes to complete engine repower and even have secure winter boat storage available. Dealerships with Honda Marine, Honda Power Equipment, Suzuki, and Tohatsu

​When it comes time to repairing or replacing engines, generators, or outdrives, you should choose Stateline BoatWorks! We have an extensive network of certified mechanical technicians who are ready to keep you on the water and not in our boatyard.

Breakwater Marine Services, LLC has been in business for over 16 years, working closely with marinas and customers to ensure a carefree boating experience. Some services that we provide are mechanical, marine electric, winterization, detailing, and rebuilt transmissions.

Diamond Marine is a marine dealership located in East Haven, CT. We sell new and pre-owned Boats and Outboards from Mercury, Carolina Skiff, Steiger Craft, and other brands. Our huge Indoor Showroom (the largest in the Northeast) lets you comparison shop a wide range of new and used vessels... easily comparing models, features, and boat designs. Diamond Marine supports its customers with an expert Service Department and Parts Group. Our technicians, with over 25 years of experience, are qualified to repair and service all makes of outboards, inboards, and IO's. We offer complete engine service & repair of all brands of inboard and outboard motors and are manufacturer-trained and certified in Yamaha | Mercury | Mercruiser | Suzuki | Volvo-Penta We use the latest technology to diagnose mechanical and electrical problems and whether you're in for repair or standard maintenance, we get your boat back to you rapidly and efficiently. Our factory-certified technicians regularly attend training classes to keep updated on all the latest innovations. We have inside service bays to keep our people working rain or shine. Diamond Marine's service philosophy is simple: preserve the customer's investment and help maximize time underway through preventative boat maintenance. In addition to providing needed service and scheduled warranty maintenance of all of the brands that we sell, Diamond Marine's state-of-the-art facilities and full-time service staff are experts in the maintenance, repair, and restoration of vessels of all makes and sizes.

Over 40 years of service to local and visiting yachts. Repair and sales of engines, transmissions, and generators, engine parts, fuel and oil filters, batteries, alternators, and propellers, fuel tank cleaning, fuel injection work, shaft alignment, diving, towing and salvage. Mooring rentals, service and repair and launch service in Newport Harbor, Block Island and Martha's Vineyard - call VHF Ch. 68. Builders of the Oldport Launches. Dealer for Yanmar, Kobelt, Ford, Borg Warner, Racor, and Vetus.

Sound Marine Works is a marine engine repair facility. Some of the other services offered are diesel and transmission service, one off design & fabricating, hydraulic systems, welding, and precision machining.