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Caliber 40 client

Caliber 40LRC - Florida

LiFePO4 conversion, solar and A/C integration

"This past winter I reached out to Jack for consulting and design of a solar and lithium battery system for my Caliber 40 sailboat. As I am located in Florida his ability to advise and manage my project remotely was originally a concern. After discussing the project and following his detailed design I can say I couldn’t be happier with the result.

We have just finished a 4 month cruise from Southwest Florida to and around Chesapeake Bay and the system performance was even better than planned! Jack’s ability to anticipate our needs and step by step instructions and advice made the project a great success.

I look forward to working with Jack and Spirit Marine Services on future boat projects as our journey aboard continues."

Windlass training

Malo 41 - Oakland

Windlass diagnosis consulting

"Jack and Sonya are very helpful and professional. Their knowledge and service on my damaged windlass saved me both time and money and they have taken the extra steps of helping to educate me so I can be more self sufficient as I work my way through a major yacht refit. I highly recommend them and couldn't be happier with the service! Thank you!"

Varnish prep

J35 Sailboat - Emeryville

Exterior varnish, waxing, stainless polish & winch service

“Aside from just being cool people with great stories, Jack and Sonya do top-notch work. They brought out the shine in my J35 Akialoa with a mixture of quality work and attention to detail.


Throughout the project they were accessible and excited to talk about their approach - and they completed the work when they said they would. I’m looking forward to working with them again!”

SF Bay

Tolly Craft 34 - Emeryville

Monthly wash down, engine check up & interior cleaning

"Spirit Marine Services is the real deal. Their friendly, comprehensive service and excellent communication puts them in a league of their own.

Thank you Jack and Sonya!"

Windlass install

Ericson 36C - Marina Bay, Richmond

Lofrans motorized windlass w/custom riser & battery install, lazy-jacks & reefing lines installed - general rigging upgrades

"Jack and Sonya seem to care for every boat as their own. They exhibit a level of professionalism, craftsmanship, and importantly, enthusiasm for boat systems that is quite honestly inspiring. They helped me with a myriad of projects on my 36ft sailboat that I either just couldn't quite wrap my brain around or, frankly, I was intimidated by.


They were very communicative during the process and helped me to understand each step in the process. I couldn't recommend them more highly for whatever boat projects loom in your future."

Power yacht client

Nautique 38 Trawler - Emeryville

Exterior & interior detailing, general repairs, boat yard delivery & yacht management

It has been a pleasure working with Spirit Marine Services this past year. They are responsive, courteous and timely - not to mention helpful and friendly to work with. Those qualities are rare and huge in my book, so I will continue doing business with them. I'm a pretty picky person, so for what it's worth - I would highly recommend them! 

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