Initial mobile diagnostic or service hour.
KEELMARK MARINE MECHANICS
Mobile Diagnostics + Repair
Professional mobile marine service for owners who want the problem found, explained clearly, and repaired correctly — at your boat, at your marina.
Serious diagnostics.
Practical repairs.
Keelmark provides mobile marine diagnostics, mechanical repair and electrical troubleshooting directly at your boat or marina.
We focus on getting to the actual cause of the problem before recommending parts or unnecessary work.
Marine Diagnostics
No-starts, intermittent faults, warning alarms, overheating and hard-to-trace problems.
Explore → 02Mechanical Repair
Inboard, sterndrive and outboard service, cooling systems, pumps, ignition and routine maintenance.
Explore → 03Marine Electrical
Charging systems, batteries, starters, wiring faults, shore power, bilge systems and electronics.
Explore → 04Generators + Thrusters
Generator troubleshooting, hot no-starts, battery supply issues, contactors and thruster controls.
Explore →What's your boat
doing?
Pick the closest symptom. You'll see where a proper diagnosis usually starts — then send it straight to Keelmark with one tap.
—
General starting points only — the real answer comes from testing at the boat. That's the job.
What the job
actually looks like.
No stock photography. No staged shop shots. These are real diagnostics and repairs on real boats around Greater Seattle.






Text first.
Less waiting around.
Send us the boat, marina and problem. Photos and videos are welcome. We’ll get the right information up front and keep the process simple.
BOATYear, make, model and engine if known.
MARINAWhere the boat is located.
PROBLEMWhat it is doing, when it started and any photos/videos.
Greater Seattle
Marine Service
Seattle and the Lake Washington corridor, the Eastside, and nearby communities. Our focus is the Seattle metro and nearby marinas — not the entire Puget Sound region.
Straightforward rates.
Clear expectations.
Text us your boat • marina • problem with photos or videos when possible. We provide 24/7 preliminary estimates whenever the problem can reasonably be assessed remotely.
Final cost depends on diagnosis, access, parts and the actual scope of repair.
Labor after the first hour, billed for time on the job.
$150 first hour + 1 hr × $90
Text us
three things.
425-623-0719
24/7 real human response • Photos + videos welcome