I'll come to you...

Prices & Services


$75 - 1st Hour

$50 - Additional Hours

Payment due at time of service

Cash and all major credit cards accepted

Parts not included

Inboards - additional $10/hr.

Sorry, no PWC's

*Primarily Servicing Phillips Lake*

Retired Coast Guard


M3, LLC is a licensed and insured Veteran Owned business.  

On any given day, most people are having some problem with their boat.  Marine engineering is not only my 20+ year career, it's my true passion.  As a 3rd generation Duffey on Phillips lake, I take great pride in helping my neighbors.  My mission is to provide FAST boat mechanic services to the lake community.   

It's in my blood, check out this 1950's pic on Phillips Lake.  This my Grandfather, Dr. Dick Duffey, a.k.a. "Pup" driving the wooden boat he built with an OH YA BABY Corvette engine!  I guess the apple doesn't fall far from the tree... 

minus the doctor, wooden boat, and Corvette engine part.



Don't let a beautiful lake day pass you by.  

Boat won't start?  Prop hit a rock?  Need a tow?  Is your engine running rough?  Not steering like it should? Do you need general or preventative maintenance?  How about winterizing or summerizing?  Shrink wrapping?  Unsure?  Why drag it out of the water if you don't have to?  I'm your mobile marine mechanic in Dedham, ready to repair your boat.  Just contact me, I'll head over and we'll figure it out.

Contact Us


Eric Duffey President and CEO M3, LLC 207-290-3023 *Primarily servicing Phillips Lake*

Drop me a line!

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