Trusted Marine Service Located in Stanwood, WA & Serving Western Washington.
Expert Marine Service, Maintenance & Repair You Can Count On
Expert Marine Service, Maintenance & Repair You Can Count On
Trusted Marine Brands We Work With
From electronics and connectivity to propulsion, heating, and onboard systems, we work with respected marine brands trusted throughout the industry













01
Engine Service
Expert inboard and outboard maintenance, diagnostics, repair, and repower services to keep your boat running at its best.
Marine Performance Backed by Trusted Expertise
Marine Performance Backed by Trusted Expertise
From Mercury & MerCruiser service and support to Seakeeper Ride installation, Custom Marine Services helps boat owners upgrade performance, handling, and confidence on the water.
Precision
At Custom Marine Services, there’s no such thing as “close enough”. As sticklers for tight tolerances and correct specifications, we aim to maximise the lifespan of every system we work on.
Integrity
We also know there’s no substitute for peace of mind when you’re offshore. Simply put, a job well done is one that the customer will never need to wonder about. Let us sweat the details so you won’t have to.
Efficiency
Our experience and sure-handedness mean informed and intelligent planning, fewer surprises, and ultimately the smoothest, quickest route back to your next voyage.
We strive for excellence in everything we do.
We strive for excellence in everything we do.
Careful workmanship, straightforward service, and attention to detail on every job.
Latest articles
Marine Service for Anacortes and La Conner Boat Owners
Use winter downtime to plan boat maintenance, repairs, and upgrades at our Stanwood shop before the next boating season.
What Happens If You Don’t Winterize Your Boat?
Learn what skipping winterization can mean for your engine, repair costs, and next boating season.
Marine Heating Systems: Why They Matter in Western Washington
Understand your boat’s heating system, recognize signs it needs attention, and plan for comfortable cool-weather boating in Western Washington.



