Services About Gallery Contact
(906) 632-4387
Sault Ste. Marie's Trusted Marine Shop

Your vessel
deserves the
same care
you do.

From hull repairs and engine overhaul to seasonal winterization — MCM Marine keeps your boat seaworthy on Lake Superior and beyond.

Call Now Explore Services
15+ Years Serving
500+ Boats Serviced
100% Satisfaction
Professional boat repair and marine service at MCM Marine in Sault Ste Marie
What We Do

Comprehensive marine
repair & maintenance

Whether it's a one-time repair or seasonal preparation, our experienced team handles every make and model with the precision your vessel requires.

Hull Repair & Restoration

Gelcoat refinishing, fiberglass repair, blister prevention, and full hull restoration to keep your boat structurally sound and visually sharp.

Engine Service & Overhaul

Outboard and inboard engine diagnostics, tune-ups, rebuilds, and performance optimization. We work on all major marine engine brands.

Winterization & Storage

Complete fall preparation including system draining, antifreeze treatment, battery care, and secure seasonal storage on the Upper Peninsula.

Electrical & Systems

Wiring diagnostics, navigation electronics installation, bilge pump repair, lighting upgrades, and complete electrical system overhauls.

Pre-Purchase Inspections

Thorough condition assessments before you buy. We evaluate hull integrity, mechanical systems, and electronics so you know exactly what you're getting.

Custom Fabrication

Custom canvas, bimini tops, rail enclosures, and interior upgrades tailored to your boat's specifications and your personal style.

MCM Marine workshop interior showing boat repair in progress
About Us

Built on the
Great Lakes,
built to last.

MCM Marine has been a cornerstone of the Sault Ste. Marie boating community for over a decade. Located on the Portage Avenue corridor, we serve boat owners across the Soo and surrounding Upper Peninsula communities with honest, skilled marine repair work.

Our approach is straightforward: we treat every vessel as if it were our own. That means transparent estimates, no surprise charges, and a commitment to doing the job right the first time. From routine maintenance to complex structural repairs, we bring the same attention to detail regardless of the task.

Whether you're preparing for your first season on Lake Superior or keeping a decades-old cruiser running smoothly, MCM Marine is your local marine partner — here when you need us, and ready when the water calls.

Certified Technicians
Transparent Pricing
Local & Reliable
Get in Touch

Ready to get
back on the
water?

Give us a call or stop by our shop. We'll assess your boat's needs and give you an honest estimate — no pressure, no surprises.

Call Us (906) 632-4387
Visit Us 1065 E Portage Ave Sault Ste. Marie, MI 49783
Hours Mon – Fri: 8:00 AM – 5:00 PM Sat: By Appointment
Contact

Send us a
message

Have a question or need a quote? Fill out the form and we'll get back to you within one business day.

Is this your business? Claim your website
Your own domain includedLive in minutes, edit anytime
Claim my website