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Quickest Boat Mechanics & Engine Repair in Costa Mesa, CA (2026)

When your engine goes down in Costa Mesa, CA, waiting days for a callback isn't an option. This list of top Boat Mechanics & Engine Repair pros is ranked to help you find someone who can move fast — whether you're dealing with a dead outboard, a diesel issue, or something in between. Check out the pros below and request a free quote from a local specialist today.

By Boatwork in Costa Mesa, CA·10 pros·1107 lists by this author·June 13, 2026·Updated July 9, 2026
10 pros
Maurer Marine logo

Maurer Marine

4.3(60)
(949) 645-7673Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairFiberglass & Gelcoat RepairBoat Repair & Maintenance

About Maurer Marine

Operating since 1977, this Costa Mesa-based marine dealership has built a reputation serving Southern California's boating community for over 45 years. As a family-owned and operated business, Maurer Marine specializes in inflatable boats, outboard motors, and comprehensive marine repair services. Their facility functions as an authorized dealer for some of...

My ThoughtsMaurer Marine brings 49+ years of experience across engine repair, fiberglass, and general boat maintenance, backed by a 4.3-star rating from 58 reviews — a long-established shop to call when you need reliable help fast.
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West Coast Marine Service logo

West Coast Marine Service

4.8(41)
(949) 515-2822Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairFull Service BoatyardsBoat Repair & Maintenance

About West Coast Marine Service

Operating from Costa Mesa, California, West Coast Marine Service has established itself as a dedicated marine dealership and service center specializing in Yamaha outboard motors and Parker boats throughout Southern California. The business maintains a strategic location that allows them to serve boat owners across the region, with operations spanning...

My ThoughtsWest Coast Marine Service holds a strong 4.8-star rating from 41 reviews and covers everything from engine work to full-service boatyard needs — a well-reviewed option when turnaround time matters.
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AM

Advanced Marine Service

4.9(59)
(949) 722-9980Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairBoat Repair & Maintenance

About Advanced Marine Service

Operating from Costa Mesa, California, Advanced Marine Service has established itself as a dedicated provider of marine repair and maintenance solutions for boat owners throughout Orange County and the surrounding Southern California coastline. While the business maintains a low-profile web presence, their commitment to serving the local boating community reflects...

What others are saying about Advanced Marine Service

Customers repeatedly praise Advanced Marine Service as a family-owned operation led by David, Derek, and Denise who deliver exceptional technical expertise and honest diagnostics. When it comes to service quality, clients consistently highlight their...

Reviews sourced from Google

My ThoughtsAdvanced Marine Service carries a 4.9-star rating across 59 reviews, making it one of the highest-rated engine repair specialists on this list — worth contacting early if your schedule is tight.
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Marine Diesel Services logo

Marine Diesel Services

4.5(23)
(949) 612-8180Costa Mesa, CAGet Directions
Costa Mesa, CABoat Surveying & InspectionBoat Mechanics & Engine RepairGenerator Service & Repair

About Marine Diesel Services

Operating out of Costa Mesa, Florida since 1995, Marine Diesel Services has established itself as a specialized diesel service provider dedicated to keeping boats and yachts operational on the water. With nearly three decades of hands-on experience in the marine industry, the company has built its reputation on comprehensive diesel...

What others are saying about Marine Diesel Services

Clients return to Marine Diesel Services for their knowledgeable mechanics and engine expertise, with customers consistently praising the team's ability to diagnose and solve complex problems on everything from twin Mercury outboards to Detroit Diese...

Reviews sourced from Google

My ThoughtsMarine Diesel Services has 31+ years in the trade and a 4.5-star rating from 23 reviews, with specialties spanning diesel engine repair, generator service, and boat surveying — useful if you need a multi-service pro quickly.
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Sea & Ski Marine logo

Sea & Ski Marine

4.7(15)
(949) 646-7813Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairGenerator Service & RepairBoat Repair & Maintenance

About Sea & Ski Marine

Operating continuously since 1965, Sea & Ski Marine has established itself as one of Southern California's most respected marine service and repair facilities. Based in Costa Mesa, California, this family-owned operation has built its reputation on delivering honest, professional service to the Orange County marine community for nearly six decades....

My ThoughtsSea & Ski Marine has been in business 61+ years and holds a 4.7-star rating from 14 reviews, covering engine repair and generator service — deep experience to draw on when you need a fast diagnosis.
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Advanced Marine Power logo

Advanced Marine Power

4.5(19)
(949) 548-9791Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairGenerator Service & RepairBoat Repair & Maintenance

About Advanced Marine Power

Operating from Costa Mesa, California since 1987, Advanced Marine Power has built a reputation as a specialized marine diesel service provider serving the Southern California boating community. With over three decades of hands-on experience, their team of expert marine technicians focuses on delivering quality dockside service for diesel engines, generators,...

What others are saying about Advanced Marine Power

Clients return to Advanced Marine Power for their expertise in diesel engines and generators, with customers praising their knowledge of Yanmar, Onan, and Cummins systems along with reliable parts sourcing. On the service front, reviewers consistentl...

Reviews sourced from Google

My ThoughtsAdvanced Marine Power has 39+ years in business and a 4.5-star rating from 19 reviews, with engine repair and generator service among its core specialties — a seasoned shop to reach out to for prompt assistance.
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AM

Amber Marine

3.7(34)
+1 (949) 646-6918Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairBoat Repair & Maintenance

About Amber Marine

Specializing in Tohatsu outboard engines and comprehensive marine services, Amber Marine has established itself as a trusted resource for boat owners throughout Orange County's coastal communities. Operating from their Costa Mesa location with close proximity to Newport Beach's extensive harbor network, the business has built a reputation around outboard engine...

My ThoughtsAmber Marine specializes in boat engine repair and general maintenance, with a 3.7-star rating from 34 reviews — reach out directly to ask about current availability and response times.
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Outdrive Exchange logo

Outdrive Exchange

3.9(16)
(949) 548-2044Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairBoat Repair & Maintenance

About Outdrive Exchange

Serving the Southern California marine community from their Costa Mesa facility, Outdrive Exchange has built a reputation as a specialized marine service provider focused on sterndrive systems, engines, and comprehensive boat maintenance. Their strategically located boatyard serves boat owners throughout Newport Harbor, Huntington Harbor, and Dana Point Harbor, offering both...

My ThoughtsOutdrive Exchange focuses on boat mechanics and engine repair, carrying a 3.9-star rating from 16 reviews — contact them to get a sense of scheduling and how quickly they can assess your situation.
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S&J Complete Marine logo

S&J Complete Marine

4.6(11)
(657) 289-0034Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairBoat Repair & Maintenance

About S&J Complete Marine

Specializing in Mercruiser boat engine diagnostics and repair, S&J Complete Marine operates as a full-service marine mechanics and fuel injection shop serving boat owners throughout Costa Mesa, California and the surrounding Orange County region. The business was founded on a focused mission: to address the widespread issue of clogged fuel...

What others are saying about S&J Complete Marine

The reviews paint a picture of a business known for exceptional MercCruiser expertise and honest, thorough service. What sets S&J Complete Marine apart is Jack's willingness to take time with customers—walking them through problems, providing detaile...

Reviews sourced from Google

My ThoughtsS&J Complete Marine has a 4.6-star rating from 11 reviews, putting it among the better-rated options on this list despite a smaller review sample — a solid choice to contact if you want quality work done promptly.
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HD

HB Diesel

5.0(59)
(714) 400-6377Costa Mesa, CAGet Directions
Costa Mesa, CABoat Mechanics & Engine RepairBoat Repair & Maintenance

About HB Diesel

Operating out of Costa Mesa, California, HB Diesel has built a reputation as a specialized service provider focusing on diesel engine repair and maintenance for marine applications. While the business name suggests automotive services, their expertise extends into the marine sector, addressing the unique demands of boat owners who require...

What others are saying about HB Diesel

The reviews paint a picture of a business known for specialized Ford diesel expertise and exceptional customer service. On the technical front, customers consistently praise Dan and Gary's deep knowledge of Powerstroke engines, CP4 fuel pump replacem...

Reviews sourced from Google

My ThoughtsHB Diesel holds a perfect 5.0-star rating from 59 reviews — the highest-rated pro on this list by score and one of the most reviewed, making it a strong first call for urgent diesel engine work.
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