Mobile Marine Mechanic · Greater Seattle

KeelmarkMarine

Expert marine service, wherever your vessel is.

Diagnosis, repair and maintenance for every system on board.

Every system on board

Found. Explained.
Repaired correctly.

  1. 01
    Bow + stern thrustersMotor, drive and control diagnostics, repair and replacement.
  2. 02
    Helm + electronicsInstrumentation, alarms, displays and the wiring behind them.
  3. 03
    GeneratorsScheduled service, cooling and exhaust, transfer switching.
  4. 04
    Engine + sterndriveInboard, sterndrive and outboard diagnostics, service and repair.
Greater Seattle

Every boat.
Every system.

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Our approach

One request. Handled start to finish.

Tell us what the vessel needs. We take responsibility for the work from there.

  1. Discuss your needs

    Tell us about the vessel, where it is and what is happening. We follow up with any questions.

  2. Plan your service

    We assign a technician experienced with that system, whether engine, generator, electrical or thrusters.

  3. Coordinate your service

    We arrange the visit around the vessel, confirm the scope before work begins and keep you informed until it is done.

Expertise

From the engine room to the helm.

01
Engine + sterndriveInboard, sterndrive and outboard diagnostics, service and repair.
  • No-start and running-fault diagnosis
  • Ignition, fuel and charging systems
  • Raw-water pumps, impellers and heat exchangers
  • Gimbal bearings, bellows and drive service
  • Seasonal service and winterization
  • Pre-purchase condition assessment
Boat repair + marine engine repair
02
GeneratorsMarine generator service, cooling, exhaust and transfer switching.
  • Scheduled service to manufacturer intervals
  • Cooling and exhaust system repair
  • Load testing and output faults
  • Transfer switches and shore-power integration
Generator + thruster service
03
Bow + stern thrustersMotor, drive and control diagnostics, repair and replacement.
  • Motor, solenoid and brush inspection
  • Drive leg, shear pin and propeller service
  • Control panel and wiring faults
  • Battery supply and voltage-drop testing
Generator + thruster service
04
Helm + electronicsInstrumentation, alarms, displays and the wiring behind them.
  • Gauge, sender and alarm faults
  • Display and network troubleshooting
  • Harness inspection and repair
  • Installation of replacement instruments
Marine electrical repair
05
Electrical + chargingBatteries, alternators, chargers and shore power, tested under load.
  • Battery bank testing and replacement
  • Alternator and starter diagnosis
  • Chargers, inverters and isolation
  • Bilge pumps and float switches
Marine electrical repair
06
Maintenance + winterizationRoutine service at the dock or on the trailer. Winterization, $150 flat for any boat.
  • Oil and filter changes
  • Impellers and cooling service
  • Tune-ups, belts and fluids
  • Winterization, $150 flat, any boat, any size
  • Seasonal commissioning
  • Preventive inspections
Boat maintenanceBoat winterization
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

Service area

Across Greater Seattle.

At the dockOn the trailerOn the water

A mobile marine mechanic for Lake Union, Lake Washington and the Eastside. We come to the marina, the private dock or the driveway.

Service area details
Pricing

Clear rates. No surprises.

  • Diagnostic visitThe first hour on board
    $150
  • Each additional hour
    $90/hr
  • Urgent assistanceRequests answered any hour, day or night
    24/7
Estimate a visit
$150
Diagnostic visit only
1 hr4½ hrs8 hrs

Labor estimate. Parts and materials are quoted separately, and we confirm the scope before any work begins.

Questions

Before you book.

What does a mobile marine mechanic do?

A mobile marine mechanic comes to the boat instead of the boat going to a shop. Keelmark diagnoses and repairs engines, electrical systems, generators and thrusters at the marina, the private dock, the driveway or on the water across Greater Seattle.

How much does Keelmark charge?

Diagnostic visits are $150 for the first hour on board and $90 for each additional hour. Boat winterization is a flat $150 for any boat, any size. Parts are quoted separately.

Do you offer emergency boat repair?

Yes. For urgent mechanical issues, call 425 623 0719 at any hour. Our team will assess your needs and confirm the next steps.

Which areas do you serve?

Seattle, Bellevue, Kirkland, Mercer Island, Renton, Shoreline, Lake Forest Park, Kenmore, Redmond, Sammamish and Bothell, including Lake Union and Lake Washington.

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