Dave Merson and his team have done a great job for many years helping me maintain my family’s 25’ Searay. His maintenance, diagnosis and delivery have kept me on the water and enjoying the boat. I highly recommend him and his team.

I have been using Justin & Dave for several years. They have done lots of work on 3 different boats for me. Big major jobs to small jobs, they are fair with their prices and great with their work! I don’t use anyone else! They are extremely busy, so if you leave a message, check back in after a week or so, part of keeping prices down is not having a bunch of office staff taking messages and making calls!!!

100% recommend. I’ve used Justin from Old Line 3 times now. Nothing but good things. Knowledgeable, experienced, and professional. Wastes no time and won’t steer you wrong with bad advice. This last time, Justin was able to schedule me, troubleshoot, and repair to get me back on the water all inside one week. Very easy to communicate with and travels throughout the Baltimore/Annapolis area. Highest recommendation. I’m a first time boat owner and having someone like Old Line to call is a must.

I have been working with Justin since just before the end of last boating season, 2019 and he has been doing excellent work. He communicates very well, is timely and fair pricing. I have used two or three other marine service companies in the past several years, but have found a home with Justin and Old Line Marine....

Best mobile marine mechanic in the Annapolis area. Justin is dedicated, reliable and a technical expert. Great to work with.

Justin and Dave did a great job getting our family boat back on the water after 2yts of sitting parked. And then were very helpful in showing my City husband his Sea Legs. Thank you!!

No reply. Its been a month

Best service around

Outstanding service