About Us

Our History

John Spooner had worked in asphalt plants and welded for years before he started feeling the stress negatively, he wanted to be able to enjoy life more and decided to come back to Lake Winnipesaukee.

He spent his summers growing up on Diamond Island and loved the area, without a direct plan, he started working in the marine industry. Quickly realizing there was a demand, but not a company who focused on boat detailing and reconditioning. He was many years ahead of his time, and the marine industry has only recently caught up to realizing there is such a demand.

In 1994, Diamond Shine was founded and continued to grow with the changing times and partnered with Lakeport Landing Marina to become the First Marine Distributor for their product line in the United States!occupying the corner offices. Write a nice bio about each executive that includes what they do, how long they’ve been at it, and what got them to where they are.

Why Choose Us?

We Love What We Do

Passion is contagious and the people who have been here for years, share our passion for always trying to raise the bar.

Leave It To Us

Doing it yourself doesn’t always pan out. Rely on our knowledge and experience to do the work for you along with tell you how to maintain the finish or let us do the maintenance for you!

We Truly Care

Passion is what drives us and is what makes us stand out. We enjoy what we do, and make sure to pass on our knowledge.

Oupr Promise To You

We promise to always provide value and outstanding service, and work within your budget constraint.

Our Products

Diamond Shine is the leader of ceramic coatings in New Hampshire. A ceramic coating is applied by hand to the exterior of a vehicle or boat. The coating then chemically bonds with the factory paint or gel-coat creating a layer of shine and protection not achievable by the highest end waxes. We're an accredited dealer of GTECHNIQ and Ceramic Pro. As well as being a licensed dealer we're also an authorized installer. These superior products require skill and training to apply, so why chance it? Leave this job to the pros, give us a call for a quote today!


We have been lucky enough to come across a new industry changing product line that we've been devoted to learning since 2013. This is one of many products that have recently changed the detailing industry and we are proud to be able to serve you with the best products on the market.

As much as we love taking on new customers, we're also very driven on keeping our existing customers happy and "wowed!"  We've built a great reputation and strive very hard to keep and exceed our expectations; from our customers and to also challenge ourselves.


In the past, we've stayed true and focused on perfecting what we do best, boats; but with this new product line, we are now taking on Autos (during our slower periods).

We don't plan on doing autos as a main focus but we are looking forward to passing on the industries leading sealants. Althought it may be expensive at first, the product will speak for its self and will work for you, meaning less time washing & waxing your vehicle and less money at the car wash!


The hardest part of our job is finding others who are as hard working, fun loving and passionate about making things as shiny as possible.

We believe in our work and working hard, which we think shows when you meet us, but we also believe in having fun; whether its taking 5 minutes to cool down in the lake or just joking around with fellow co workers. 

Diamond Shine is always looking for summer help between the months of April through August. It's a perfect summer job for high school kids because we have structured our business around skill building, team work and where else can you work on your tan while working .

If you're interested in working with us, please feel free to call us at 603 293 0378 or stop in (We start hiring in March)

Contact Us

Better yet, see us in person!

We love our customers, so feel free to visit during normal business hours.

Diamond Shine Boat Detailing

34 Meadowbrook Ln, Gilford, NH 03249

(603) 293-0378


Drop us a line!