about-1Seamless Marine is the leading designer and manufacturer of fiberglass hardtops, T-tops, tuna towers, sports towers, marine canvas and upholstery. Our unique cutting-edge methods of design and manufacturing enable us to deliver a nearly completed product ready for installation at your boat anywhere in the world.

SEAmless manufactures all the components in-house to ensure the level of quality that you have come to expect and that your investment deserves. We use the highest quality anodized aluminum available in today’s market. All our engineered fiberglass tops are custom-made and have a painted Awlgrip™ finish. Seamless enjoys long-term relationships with repeat customers and manufacturers alike.

The SEAmless team consists of highly skilled, hard working craftsmen who pride themselves in producing the highest quality products. They are constantly challenging themselves to improve and produce better products. Our professional team pays  unparalleled attention to detail, which has helped us grow and dominate the industry.

Having outfitted hundreds of boats with tournament proven durability, our products carry a lifetime warranty to the original owner.


about-2Seamless Marine now provides custom installations from two convenient locations: Our modern manufacturing facility in New Bedford, MA; and our second facility in York, ME (see contact page for location info).

SEAmless says it all, from our initial contact with our customers, our designs, and to the products that we deliver to you, we guarantee that your experience with us will be a SEAmless one!

We have spent countless hours engineering, researching, but most importantly listening to our customers to meet their expectations. We consistently provide high quality products and service. That is why so many of our customers refer us and some come back to us time and time again.

SEAmless Marine has and will continue to build pleasurable and dependable relationships with our customers and we are confident that you will be satisfied with your experience.

Jeff Botelho, sole designer and founder of the former J&J Marine in Somerset MA, has teamed up with SEAmless Marine. Jeff brings over 25 years experience, his industry-leading designs, and workmanship second to none to our organization, and ultimately to you the customer!

Botelho designed and managed the construction of hundreds of tops and towers for boats of all sizes that can be seen all over the world. His unique style, high standards and attention to detail can be seen in every creation.

We are pleased to announce our partnership with Navtronics Marine Group.  Our one-stop, one-project-manager approach at our York, Maine location serves individuals, boat builder, and boat dealers, allowing us to give every project personal attention.

Products and services available:

  • Marine Electronics
  • Marine Safety
  • Tuna & Sports Towers
  • Hard Tops & Custom T-Tops