Mobile boat maintenance.
Routine maintenance is easiest where the boat already lives. We service boats at the marina, the private dock or on the trailer across Greater Seattle, Mercer Island and the Eastside.
Keep small problems from becoming emergencies.
Routine engine service
Oil and filter changes, tune-up items, belts, fluids and general engine maintenance, based on the boat, the engine and its actual service history.
Impellers and cooling maintenance
Raw-water impellers and cooling components deserve attention before an overheating event damages something more expensive. A worn impeller is one of the cheapest parts on the boat and one of the most costly to ignore.
Winterization, $150 flat
Boat winterization is a flat $150 for any boat, any size, done at the dock or on the trailer. See boat winterization.
Boat maintenance on Mercer Island and the Eastside
We maintain boats at private docks and marinas around Mercer Island, Bellevue, Kirkland and the rest of Lake Washington, so the boat never has to leave the water for routine service.
- Oil + filter changes
- Impeller service
- Tune-ups
- Belts + fluids
- Cooling-system service
- Winterization, $150 flat
- Battery checks
- Seasonal commissioning
- Preventive inspections
- Service records
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.
Before you book.
How often should a boat impeller be replaced?
Many manufacturers recommend inspecting the raw-water impeller every season and replacing it every one to two seasons, sooner if the engine has overheated or run dry. We can check yours during any service visit.
How much does boat winterization cost?
Winterization is a flat $150 for any boat, any size, anywhere in our Greater Seattle service area.
Do you service boats at private docks on Mercer Island?
Yes. We work at private docks as well as marinas on Mercer Island and around Lake Washington.
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
Every system on board.
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