Marine mechanic · Seattle, WA

Marine mechanic in Seattle.

Mobile boat repair and maintenance across Seattle: Lake Union, Portage Bay, the Ship Canal, Shilshole and the Seattle shore of Lake Washington. We come to the slip, the liveaboard dock or the driveway.

Or text 425 623 0719
Mobile marine mechanic at work on a boat in Seattle, Washington
Twin-engine service callSeattle
Keelmark · Greater Seattle

Boat repair around Seattle.

Lake Union and the Ship Canal

Seattle has more boats tied up close to the city than anywhere else in the region, from liveaboard cruisers on Lake Union to working moorage along the Ship Canal and Salmon Bay. Most of our Seattle visits happen right at the slip, which saves a haul-out and a day of logistics.

Shilshole and salt water

Boats kept on Puget Sound work harder: salt water is tough on raw-water pumps, heat exchangers, risers and electrical connections. Cooling-system and corrosion-related electrical faults are some of the most common things we find on salt-water boats.

Liveaboards and larger cruisers

Boats that are lived on lean on their charging systems, shore power, inverters and generators every day. We test and repair those systems in place, without disrupting life aboard more than necessary.

Nearby

We also serve Shoreline, Mercer Island and Lake Forest Park, along with the rest of Greater Seattle.

  • Engine diagnostics + repair
  • Marine electrical
  • Generators + thrusters
  • Routine maintenance
  • Winterization, $150 flat
  • 24/7 urgent requests
  • At the dock or marina
  • On the trailer at home

Keelmark serves Seattle, Bellevue, Kirkland, Mercer Island, Renton, Shoreline, Lake Forest Park, Kenmore, Redmond, Sammamish and Bothell. Diagnostic visits are $150 for the first hour and $90 for each additional hour; winterization is a flat $150 for any boat.

Questions

Before you book.

Do you work at Lake Union and Shilshole marinas?

Yes. We work at marinas and private moorage across Seattle, including Lake Union, the Ship Canal, Shilshole and the Seattle shore of Lake Washington. Include the marina and slip with your request.

Can you work on a liveaboard boat?

Yes. Charging, shore power, inverters, generators and engines on liveaboard boats are all serviced in the slip.

Is salt-water use harder on a boat engine?

It is. Salt water is harder on cooling components and electrical connections, so salt-water boats benefit most from regular impeller and cooling-system checks.

Available 24/7

Urgent marine
service.

For urgent mechanical issues, call Keelmark. Our team will assess your needs and confirm the next steps.

Unable to call? Text us.·Emergency boat repair

Arrange service

Tell us about the vessel.
We'll handle the rest.

Share your vessel details, location and service needs. We'll reply to confirm the details and arrange the visit.


Prefer to write directly? Text 425 623 0719
Arrange service

Tell us about the vessel.

We'll reply by text to confirm the details and arrange the visit.

Vessel
Location
Service needed
Contact
Send request

Send opens Messages with your request written out to our service desk; tap send there. Prefer to write it yourself? Text 425 623 0719.

Almost done. Tap send in Messages.

Your request is written out in a text to 425 623 0719. Once it is sent, we'll reply to confirm the details and arrange the visit.

Open Messages