Most Experienced Boat Mechanics & Engine Repair in Largo, FL

When your engine needs attention, experience matters — and Largo, FL has no shortage of seasoned professionals ready to help. This list highlights the top providers of Boat Mechanics & Engine Repair in Largo, FL, ranked with an eye toward longevity and a proven track record on the water. Browse the pros below and request a free quote to get your boat back in shape with a local expert who knows the trade.

By Boatwork in Largo, FL·10 pros·321 lists by this author·May 31, 2026
10 pros
Eric's Outboard Key Largo logo

Eric's Outboard Key Largo

4.9(202)
7866520955Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine Repair
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About Eric's Outboard Key Largo

Situated along the Overseas Highway in Key Largo, this full-service marine repair facility serves boat owners throughout the Upper Keys, including Tavernier, Islamorada, and the surrounding Monroe County waters. The location provides convenient access for vessels navigating Florida Bay, the Atlantic reef system, and the expansive backcountry flats that define...

What others are saying about Eric's Outboard Key Largo

Across the reviews, Eric's Outboard Key Largo earns recognition for their exceptional customer service and comprehensive Yamaha expertise. On the service front, customers consistently praise their knowledgeable staff including Mike, Tony, and Eric fo...

Reviews sourced from Google

My ThoughtsWith 7+ years in business, Eric's Outboard Key Largo brings focused engine repair experience and a strong 4.9-star rating across 202 reviews.
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Markey's Marine Services logo

Markey's Marine Services

4.5(96)
(786) 829-6081Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & ElectronicsBottom Painting & Antifouling

About Markey's Marine Services

Boat owners throughout the Upper Florida Keys have relied on Markey's Marine Services for comprehensive vessel care since the company established its facility on the Overseas Highway in Key Largo. With more than 30 years of specialized experience in Mercury sales and service, the business has built a reputation for...

What others are saying about Markey's Marine Services

When it comes to engine repairs and Mercury outboard service, Markey's Marine Services demonstrates strong technical expertise with mechanics who can quickly diagnose issues and get boats back on the water, often within the same day. On the customer...

Reviews sourced from Google

My ThoughtsMarkey's Marine Services has been in business for 30+ years, covering engine repair, electrical work, bottom painting, and fiberglass — rated 4.5 stars from 96 reviews.
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LeBoeufs' Marine logo

LeBoeufs' Marine

4.8(61)
305-998-4390Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & Electronics

About LeBoeufs' Marine

Serving the Upper Florida Keys from their location on the Overseas Highway in Key Largo, LeBoeufs' Marine has established itself as a comprehensive marine service facility combining boat sales, engine repair, and full-service marina operations. The family-owned business has earned a 4.8-star Google rating from more than 60 reviews, reflecting...

What others are saying about LeBoeufs' Marine

When it comes to emergency repairs and engine service, LeBoeufs' Marine consistently delivers for boaters on vacation in Key Largo, with customers praising their ability to quickly diagnose and fix everything from Suzuki outboard issues to overheatin...

Reviews sourced from Google

My ThoughtsLeBoeufs' Marine holds a 4.8-star rating from 61 reviews, specializing in boat mechanics and marine electrical work.
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Keys Marine Service logo

Keys Marine Service

5.0(33)
1-786-914-5293Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & Electronics

About Keys Marine Service

Mobile boat repair throughout the Florida Keys requires both technical expertise and an understanding of the region's unique saltwater challenges. Keys Marine Service delivers comprehensive marine maintenance and engine repair from their Key Largo base, serving boat owners from Tavernier south to Marathon with on-site service that eliminates the need...

What others are saying about Keys Marine Service

Known for their mobile dockside service throughout the Florida Keys, Keys Marine Service has built a reputation around Jayce's exceptional mechanical expertise and unwavering reliability. Time and again, customers describe how this team goes above an...

Reviews sourced from Google

My ThoughtsKeys Marine Service has built a perfect 5.0-star rating from 33 reviews in 6+ years, handling both engine repair and marine electrical needs.
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Dawson Marine Services logo

Dawson Marine Services

4.8(73)
1-305-924-5332Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & Electronics

About Dawson Marine Services

Operating from a well-equipped facility in Key Largo, Dawson Marine Services has built a reputation as a go-to marine repair shop for boat owners throughout the Upper Florida Keys. Their 4.8-star rating across 72 Google reviews reflects consistent performance in an area where saltwater takes a toll on every component...

What others are saying about Dawson Marine Services

From electronics troubleshooting to engine diagnostics on Suzuki and Honda outboards, reviewers highlight Dawson Marine's ability to quickly identify and resolve complex marine issues. Customers frequently mention their responsive service calls, with...

Reviews sourced from Google

My ThoughtsDawson Marine Services brings 6+ years of experience and a 4.8-star rating from 73 reviews, covering engine repair and marine electrical services.
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Chris Carson's Marine Service logo

Chris Carson's Marine Service

4.6(67)
1-800-329-2725Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & Electronics

About Chris Carson's Marine Service

Family-owned and operated since its founding, Chris Carson's Marine Service has built a solid reputation among boat owners throughout the Upper Florida Keys for comprehensive marine repair and maintenance solutions. The shop's location on the Overseas Highway in Key Largo positions their team to serve recreational boaters, commercial fishermen, and...

What others are saying about Chris Carson's Marine Service

From complete Yamaha HPDI rebuilds to custom reed valve manufacturing, reviewers highlight Chris Carson's Marine Service's expertise with 2-stroke outboard engines and specialized components like fuel injectors. Customers frequently mention the team'...

Reviews sourced from Google

My ThoughtsChris Carson's Marine Service stands out with 42+ years in the trade, earning a 4.6-star rating from 67 reviews across engine and electrical work.
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Certified Diesel logo

Certified Diesel

4.5(10)
1-305-509-7424Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & ElectronicsGenerator Service & Repair

About Certified Diesel

Operating from Key Largo since the early 1970s, Certified Diesel brings more than five decades of marine diesel expertise to boat owners throughout the Upper Keys, Islamorada, and Monroe County. The company was founded by Nolin E. Jackson with a focus on delivering specialized marine diesel solutions, and that technical...

What others are saying about Certified Diesel

Customers repeatedly praise Certified Diesel for their exceptional emergency service and parts availability, with multiple reviews highlighting their ability to source hard-to-find components quickly and provide after-hours support. The reviews make...

Reviews sourced from Google

My ThoughtsCertified Diesel brings 55+ years of experience to engine repair, electrical, and generator service, with a 4.5-star rating from 10 reviews.
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G.P.T Marine logo

G.P.T Marine

5.0(6)
1-786-283-1472Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & ElectronicsFiberglass & Gelcoat Repair

About G.P.T Marine

Operating from a facility on the Overseas Highway in Key Largo, G.P.T Marine serves boat owners throughout the Upper Keys with a comprehensive range of marine repair and maintenance services. Their team of experienced technicians handles everything from routine engine maintenance to complex mechanical overhauls, working with all major marine...

What others are saying about G.P.T Marine

G.P.T Marine stands out as a reliable choice for boat owners who value straightforward service and fair pricing. The reviews make clear that their team, particularly mechanic Yosiel, has built a reputation on honesty and transparency in an industry w...

Reviews sourced from Google

My ThoughtsG.P.T Marine holds a 5.0-star rating from 6 reviews, offering engine repair, electrical, fiberglass, and marine plumbing services.
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SD Marine Group logo

SD Marine Group

5.0(1)
1-786-982-7722Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine RepairMarine Electrical & ElectronicsBottom Painting & Antifouling

About SD Marine Group

Operating from their facility on the Overseas Highway in Key Largo, SD Marine Group delivers comprehensive marine services to boat owners throughout the Florida Keys and Monroe County. Their waterfront location provides convenient access for vessels ranging from small center consoles to large cruising yachts, with the team addressing the...

My ThoughtsSD Marine Group has a 5.0-star rating from 1 review so far, with specialties spanning engine repair, electrical, and bottom painting.
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Chester's Marine Repair

305-923-3367Key Largo, FLGet Directions
Key Largo, FLBoat Mechanics & Engine Repair

About Chester's Marine Repair

Boat owners throughout the Upper Florida Keys rely on experienced marine mechanics who understand the demanding saltwater conditions that put constant stress on engines and electrical systems. Chester's Marine Repair, located on the Overseas Highway in Key Largo, delivers hands-on engine diagnostics, repair, and maintenance services to vessels navigating the...

My ThoughtsChester's Marine Repair is new to Boatwork with no reviews yet, focusing on boat mechanics and engine repair.
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