After three trips to another shop, I delivered my 12 year old 200-hp Mercury Optimax mystery to Dennis at Shadow Mountain Marine. He solved it under the heat of our impending move out of state --- with grace and humor and at a very fair price. Im now 2200 miles away and sad to no longer have access to his great service!

This boat maintenance and repair shop is honestly even better than 5 stars. I’m in the military and move around a lot and I have never experienced such an amazing shop. Family owned business that is genuine and truly cares about your boat. I have had trailer maintenance done here, outboard annual services, and a custom trolling motor install on my boat. Their expertise is superb in all aspects and always have been fair on pricing. Dennis is always good about communicating everything he is doing and anything that he finds while working on your boat.I will never go anywhere else as long as I live here in AZ! Thank you Shadow Mountain Marine!!

Dennis did a phenomenal job on my 18 horse Tohatsu outboard. It had sat for 5 years, so needed a carb rebuid and new impeller. He also changed oil and filter, serviced the lower unit, new plugs and new fuel lines. It runs like a top! Thanks Dennis!Bob KeiserCave Creek

I have to give it to Shadow Mountain Marine some serious props...I didnt have any extensive damage to my boat, and it was nice to know Dennis was right upfront with the extent of the damage/repair and the cost. Its always nice to find a good upstanding company thats in the business for the customers and not just the dollar. Great guy and great work...bottom line..will always use and recommend to family and friends.

Great overall service. Installation was fast and professional. Would definitely recommend and use again. Very friendly and knowledgeable.

I have been trying to find very specific fuel line for my Evinrude V8 for over a week and these guys had it in stock! Really cool little place that has a ton of stuff in stock! Thanks again guys!!!!!!

If you are a boat owner in the valley then you need to save Shadow Mountain’s phone number in your phone now! As first time boat owners my wife and I have a lot questions and Dennis is always happy to answer. His knowledge on marine products is vast and his work never fall short of the mark. The turn around time is fast and we have never felt like we were being “over sold” on services we don’t need. Dennis is excellent at communicating everything thing that is being done to your boat. It is also worth mentioning that Shadow Mountain is THE ONLY marine mechanic in the valley that always answers or returns my phone call quickly.In short, I will be bringing all my boat related business to Shadow Mountain Marine!

The boat was all tuned up perfectly and I have already taken it out with confidence... highly recommend Shadow Mountain Marine!

I went in just to ask questions about some boats I was looking at he was very busy answer phone call after phone call yet still showed me how to price boats. And what to look for when buying one amazing help

I have been a customer and had made purchase...was a small one.Dennis is wonderful..honest and explains things..thought he might have a referral since he is so busy.

Called up Dennis off a google search near my house and couldn’t have been more pleased. He explained everything fully and was able to repair the impeller and get me back out on the lake quickly. He must have heard the urgency in taking my girls out the next weekend. I am glad to have found my new boat repair shop!

Dennis is the man!! Professional work and great customer service. Have had my boat in there twice and always got great service and a job well done. He and his crew takes pride in the product/service they provide!!! And hes a damn nice guy!

Simply put, Dennis and Shadow Mountain Marine has earned my business for LIFE. With so many dishonest boat mechanics it is such a blessing to have Dennis and Shadow Mountain work on my new (to me) boat. Made me a hero to my daughters by getting us on the lake (and not stranded due to a couple engine issues) and made their bday weekend a dream come true. Very knowledgeable and showed me everlasting he did (kept the broken parts t verify work done). I am a tough and demanding customer and I do not recommend companies often, but i took the time to HIGHLY recommend Dennis and Shadow Mountain, even though it might mean I have to wait longer to get work done on my boat in the future :).

Great guys. More than fair on pricing.

I was referred to Shadow Mountain Marine for an overheating issue on my 1986 Mercury outboard because many local shops won’t work on older engines. Dennis was awesome to work with. He diagnosed the issue quickly and even found that the starter was going bad, which could have left me stranded on the lake and caused more expensive issues if not replaced.I’m excited to start spending my time fishing with my son, instead of trying to fix my boat.I’d recommend Shadow Mountain Marine to a friend. Thanks, Dennis!

Danny the mechanic shows you all the details all the parts everything that he did on your boat. Danny will show you a video on his phone that your boat runs. I think its a great place to get your boat fixed very informative very reasonable.

Super awesome and helpful guys! They’ve got the best and most fair prices!! Definitely will be back! Thank you guys!!

Dennis is awesome! Highly recommended. Good honest work, fair prices.

Dennis Head knows his stuff!! They do quality work at a reasonable price. Above all, he is totally honest and you never have to worry about getting ripped off.Would not take my boat anywhere else.

Honest, reliable and experts in their field.

I have had many boats in my life and the challenge is finding a great repair shop! Shadow Mountain Marine is THAT shop! Honest, very trustworthy, and fantastic and quick service! Highly recommend this be everyone’s first stop for your boat care.

Had starting issues with my 83 Mercury 40 and shadow mountain marine was able to take care of my issues boat runs amazing now! there honest and reliable And does a very clean job ! Id highly recommend!!

Great place great great prices even better the owner Dennis is a ninja totally diagnosed and fix my boat at the fraction of the cost of other big boat dealers he did an amazing job quality work and a great price I even call and ask him questions all the time and he knows the answer to every one of them Im not a very boat savvy guy but he really is thanks Dennis and his team you made my summer I appreciate it sir

Best boat shop in town!

I cant recommend this place enough. Great service and price. Knowledgeable anglers too

I have a 1979 MerCruiser, many shops wouldn’t touch something that old. Those that did try, overcharged, did not meet expectations and don’t get me started on the lack of customer service. I had almost given up hope when I found Shadow Mountain Marine. Dennis not only delivered on everything he promised, he went above and beyond, took time to explain things, showed the old parts and got our boat back to us in record speed. I will never go anywhere else!!

Amazing service and super nice owners. Highly recommend!

Great shop Dennis is the best very knowledgeable about boats

Dennis was very detailed in his inspection and troubleshooting of my older Johnson outboard motor, after he worked his magic the motor starts first pull and idles like it was brand new!! Thanks Dennis I will not use anyone else and Shadow Mountain Marine will be highly recommended to all my boating friends.

I was referred to this shop by performance marine because they are a experienced mercury service shop. Dennis was a tremendous help even though my motor was shot. He offered an affordable rate and even helped me find a replacement motor. He was very professional and extremely helpful! I ended up having to buy a new motor from Cabela’s, but plan on letting Dennis do any work and maintenance work in the future. Great shop, easy location to get to and I can tell they have a lot of experience with older 2 strokes and new motors. Don’t waste your time elsewhere. You won’t be disappointed and only older merc service shop I could find.

I have found a new boat shop!Honest, knowlegable,and affordable.Thanks Dennis, the boat runs like new!

Amazing service, brought the boat in Wednesday with a starting issue, they went out of their way, and boat was fixed (fuel pump) and ready by Friday morning . Highly Recommend.

Took the time to help me work out my problem and find the best course of action.

I’ve been using Dennis for repair and maintenance for years. He does a great job and is very straightforward and trustworthy.

Excellent attention to detail, thorough explanations, good prices and very helpful.

Dennis has been working my bass boats for several years now. He has done outboard repairs and tune-ups and installed all the sonar gear.He can do whatever you need to keep your boat in tip-top shape including interiors and hull repair. This guy is the real deal.

If you need boat mechanical services I Highly Recommend go here.