S3 Maritime

S3 Maritime operates as a boat repair shop in Seattle, Washington, earning a 4.1-star rating across 44 customer reviews. The business maintains Monday through Friday service hours from 7:30 AM to 4:00 PM, with weekend availability closed. Reviewers indicate the company serves boaters in both Seattle and Anacortes, handling repairs on recreational vessels and live-aboard boats. The shop appears to handle both complex system diagnostics and straightforward component replacements.

The company distinguishes itself through multi-trade capability under one roof. Website documentation lists eight distinct service categories: electrical systems, electronics, engine and mechanical work, marine HVAC, hydraulics, metal fabrication, paint and fiberglass repair, water systems, and yard services. This breadth allows technicians to address interconnected system issues during a single visit, as demonstrated when one reviewer had both a freshwater system problem and a diesel heater issue resolved on the same day by different specialists.

Customer reviews name specific technicians and describe particular scenarios. A reviewer praised Jakob for evaluating a head system problem, sourcing a replacement macerator pump, and completing the work within one afternoon. Sam separately diagnosed and adjusted a diesel heater's self air bleed device the same day. Another reviewer credited Mike, Sai, and Brian with diagnosing a Victron inverter charging failure and processing a warranty replacement in four hours, completing the work the same day the customer arrived.