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Fastest-Responding Diving & Underwater Services in Long Beach, CA

When something goes wrong below the waterline, waiting days for help isn't an option. These six Diving & Underwater Services contractors in Long Beach, CA were ranked for their ratings, experience, and ability to get on-site fast when boat owners need it most. Scroll through the list and request a free quote from a local pro who can move quickly.

By Boatwork in Long Beach, CA·6 pros·1108 lists by this author·June 19, 2026·Updated July 15, 2026
6 pros
Dinu's Dive logo

Dinu's Dive

4.9(74)
(562) 270-4548Long Beach, CAGet Directions
Long Beach, CAHull & Bottom CleaningDiving & Underwater ServicesBoat Detailing & Cleaning

About Dinu's Dive

Operating out of Long Beach, California, Dinu's Dive brings a family-owned approach to professional underwater marine services. With a foundation built on quality workmanship and transparent communication, this diving services company has established itself as a reliable resource for boat owners seeking comprehensive hull maintenance and underwater inspection services throughout...

My ThoughtsDinu's Dive carries a 4.9 rating across 74 reviews — one of the strongest track records on this list — and covers hull cleaning, diving, detailing, and general repair, making them a solid first call when you need multiple things handled at once.
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Subsea Global Solutions US West Coast logo

Subsea Global Solutions US West Coast

5.0(6)
+1-562-436-2701Long Beach, CAGet Directions
Long Beach, CAHull & Bottom CleaningDiving & Underwater ServicesYacht Engineering & Systems

About Subsea Global Solutions US West Coast

Operating from the Port of Long Beach—the busiest commercial port in the United States—Subsea Global Solutions US West Coast provides comprehensive underwater maintenance, repair, and marine construction services 365 days a year. With a fleet of seven work boats and over 30 diver-technicians, the company handles multiple simultaneous projects whether...

What others are saying about Subsea Global Solutions US West Coast

Clients return to Subsea Global Solutions US West Coast for their emergency dive support and underwater repair needs. On the quality front, they consistently deliver high-quality welding and repairs with professional dive crews who work seamlessly wi...

Reviews sourced from Google

My ThoughtsSubsea Global Solutions US West Coast holds a 5.0 rating from 6 reviews and brings 81+ years in business to underwater work, yacht engineering, and marine project management — useful when the job is more complex than a routine dive.
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Long Beach Boatworks logo

Long Beach Boatworks

4.4(30)
562-546-2236Long Beach, CAGet Directions
Long Beach, CAHull & Bottom CleaningDiving & Underwater ServicesBoat Mechanics & Engine Repair

About Long Beach Boatworks

Serving the Long Beach harbor community from their location at Alamitos Bay Marina, Long Beach Boatworks has built a reputation for comprehensive mobile marine services that keep vessels in peak condition year-round. Their approach centers on bringing skilled technicians directly to the boat, eliminating the hassle and expense of haul-outs...

My ThoughtsLong Beach Boatworks earns a 4.4 rating from 29 reviews and handles hull cleaning, diving, engine repair, and detailing under one roof — a practical option when you want one contractor to cover several needs in a single visit.
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Pacific Maritime Group logo

Pacific Maritime Group

4.1(24)
(562) 590-8188Long Beach, CAGet Directions
Long Beach, CABoat Hauling & TransportDiving & Underwater ServicesBoat Towing & Emergency Service

About Pacific Maritime Group

Operating from Long Beach, California, Pacific Maritime Group has built a reputation over more than three decades as a comprehensive maritime services provider along the West Coast. With over 30 years of industry expertise, the company has supported more than 3,000 customers and completed over 5,000 projects, establishing themselves as...

My ThoughtsPacific Maritime Group is rated 4.1 from 24 reviews and pairs diving services with boat towing and emergency response, which can matter when the situation calls for more than just an underwater inspection.
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Scuba Duba logo

Scuba Duba

3.6(14)
562-598-9444Long Beach, CAGet Directions
Long Beach, CAHull & Bottom CleaningDiving & Underwater Services

About Scuba Duba

Operating continuously since 1963, this Long Beach-based marine services company has built its reputation on over five decades of underwater hull cleaning and diving services throughout Southern California's coastal waters. With experience servicing thousands of vessels of all sizes, constructions, propulsion modes, and bottom paint types, their team has developed...

My ThoughtsScuba Duba has 63+ years in the water and focuses on hull cleaning and diving services; with a 3.6 rating from 14 reviews, they're a long-established option worth contacting for a quote to compare.
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BOAT Marine & Dive Group logo

BOAT Marine & Dive Group

5.0(6)
(562) 533-0289Long Beach, CAGet Directions
Long Beach, CAHull & Bottom CleaningDiving & Underwater ServicesBoat Repair & Maintenance

About BOAT Marine & Dive Group

Specializing in professional underwater marine services, this Long Beach-based dive service brings technical expertise and reliability to vessel maintenance throughout Southern California's coastal waters. BOAT Marine & Dive Group operates as a mobile service provider, bringing skilled commercial divers directly to boats at their berths, eliminating the need for costly...

My ThoughtsBOAT Marine & Dive Group holds a 5.0 rating from 6 reviews and has been operating for 14+ years, covering hull cleaning, diving, and boat repair — a newer presence on Boatwork but with a clean early record.
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