Mobile Marine Services
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If you're in the Lake Washington or Lake Sammamish area, our technicians are probably near you right now. Bellevue, Mercer Island, Medina, Kirkland, Kenmore, Seattle, Sammamish, and Issaquah is our prime territory. You may also call us, and be connected to someone right away. We make boat repair made easy.

Our helpful and courteous techs will help you make sure your boat is safe and reliable. They've been trained in the latest technology from leading marine manufacturers and are specialist at providing these services onsite. We are NOT the cable guy, and do not expect you to waste your day waiting to meet our technician.
Services
In truth, 90% of the service and repair boats require can be accomplished at your dock, and in many cases, is better performed there. We perform on the water diagnosis and repair so we can more efficiently determine the root cause of a problem and get it repaired quickly. During service appointments, we put your boat in the water and operate systems under load to better assess your boat's performance in real world conditions.
Of course this is hard to answer from our end with out actually evaluating your boat first. Fortunately, we have a lot of experience diagnosing boats that wont start and have a good rule of thumb for estimating these costs. If the problem is MINOR in nature, we can usually diagnose and repair the issue within an hour.
Reviews (13)
Brandon Craig
Brandon Craig
Jun 13, 2021
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Matt is a great guy and a great boat repairman. Have had him fix issues that I can't for the last 3 years with my boat. Every time he's looked at something, he's told me what the problem is, what needs to be done to fix it, and what other issues I may have in the future with parts that aren't associated with the problem. I'm *somewhat* mechanically inclined, so I appreciate the fact that he will diagnose a problem and tell you what needs to be replaced/fixed if you have the ability to go that route yourself instead of having him fix it. Regarding the things I've had him fix: I've never had any
Ryan M.
Ryan M.
Jun 29, 2018
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Took boat to MMS in order to evaluate and fix a clicking while turning the boat. Due to the season ending, I agreed to have it winterized at the same time. Boat was winterized and the bill reflected some work done to the outdrive. Assumed when the boat was returned that the issue I had originally took the boat to MMS for was fix. When I took the boat out for this new season, I had to pull the boat because it was inoperable. The issue was not fixed and even worse. When MMS came to evaluate the issue, they blamed me for not telling them it was a "water issue"(?) and then they would have
Kevin Hoffmann
Kevin Hoffmann
Jun 17, 2018
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I had Matt do some work for me in the past and always wondered if the work I asked to be done was actually done. The most recent experience I had with him exposed the shyster he is. My boat wouldn't start so I asked him to look at the starter. He called me after looking at it and said he needed to pull my engine (inboard) because he believed water seized the engine. I had a second mechanic come and look and discovered it was in fact a starter issue. When I confronted Matt, he acted surprised and refused to do a three way conference call with the other mechanic. I also asked Matt where he was going
Eileen G.
Eileen G.
Apr 25, 2018
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Horrible services. Do NOT recommend. Used Matt's service for approx 2 years. After opening the boat last Spring, we discovered it was filthy with mud tracked everywhere. When I questioned him about this he said I should've moved the boat to a less muddy area (it is parked at the end our our driveway on the grass) instead of just taking his shoes off once on board.
We decided to de-winterize elsewhere and have just been told there were many things done wrong with the winterization and clearly that whoever did this in the Spring (Matt) is not familiar with this type of engine. The biggest
Chris Marley
Chris Marley
Dec 11, 2017
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Every year I drop my boat off for service at our local shop. They do a good job, but if there's any issue, I obviously don't find out until it's back on the water - then I have to reschedule service, trailer the boat and go through the whole ordeal again. What a pain. This year, I found Mobile Marine and left Matthew a message on a Sunday morning after another mechanic couldn't diagnose my issue. He called me back the SAME day and wiggled around his schedule to show the following day -
had the issue diagnosed within 30 minutes! I had to order a new part out of CA, so it was a few days before it
Robert Kidder
Robert Kidder
Nov 11, 2017
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I have had issues with my 1996 ski Brendella. It would run rough after warm. I went to several service areas around Kirkland. I think I have finally found a real doctor with Mobile Marine and not a chiropractor like I have been going to. My boat fires right up.... never done that before.
Mike L.
Mike L.
Sep 12, 2017
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Larson Powerboats Sports NW (a Regal dealer) in Fife did a pre-buy inspection and tuneup costing us $1,400 on our Regal boat. We got the boat back after about a month. It would not plane and two of the eight cylinders were not firing. Larson would not give our $575 inspection fee back.

Matthew at Mobile Marine Services to the rescue. He properly diagnosed the problem. He found the fuel pump not working properly and the wrong cap and rotor installed. He was able to fix our boat dockside and we enjoyed what was left of our boating season. He has a customer for life. He is upfront and honest which
Charles K.
Charles K.
Jul 01, 2017
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Matthew has been servicing our Malibu for at least 10 years. He takes it in and out of Lake Sammmamish for us each fall/spring, stores it, etc...

I've had him replace the stereo, detail it, and just about everything else you can imagine.

Always prompt. Always great communication. And great service.
Dan W.
Dan W.
May 23, 2017
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Matthew does stellar work for incredibly reasonable prices. Just had him replace the starter in my boat and he and his employee were on time, professional, and knowledgeable. I'll recommend him to anyone who needs service on their boat(s).
Jared Eglington
Jared Eglington
Sep 07, 2016
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Excellent! Very professional, A+ work & and great guy. Glad I found Whit's!
Nancy K.
Nancy K.
Aug 22, 2016
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I have been using Matthew with Mobile Marine for my boss' boats for a number of years now, and I have been incredibly pleased with his service. We use him to winterize, de-winterize, for regular maintenance, and whatever other boat services are required. He's always where he says he'll be when an appointment is made. Matthew is always willing to accommodate.

Just recently, one of the boats wasn't starting. Matthew came to the rescue. He picked up the non functioning boat from the private dock, and dropped it off to get serviced. 2 new engines later, Matthew delivered
Stuart Turck
Stuart Turck
Jun 25, 2016
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Mathew fit me in his most busiest of weeks , week before seafair to diagnose and fix my starting issue , other mechanics couldn't do. Fixed it and saved Seafair. He showed up earlier than promised . Thank you .. Highly recommend!!!
Mikal Eide
Mikal Eide
Aug 15, 2015
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Booked me in less than a week out in busy season. Pushed his calendar out to 5:00pm to make sure we got it up and running. Always answers the phone.