Expert Hull Cleaning Services in San Diego
Find your trusted diver here at JUSTIN TIME DIVING. Transparency is part of our principles.
- Licensed & Insured
Boat hull cleaning & services in Southern California since 2015
Racing sailboats kept in great condition

Why you should use Justin Time Diving?
Hull Cleaning & Underwater Services
Justin Time Diving has provided boat hull cleaning & services in Southern California since 2015. We offer the expertise gained in decades of servicing thousands of vessels of all sizes and constructions, all modes of propulsion, and all kinds of bottom paint and surfaces.
We are, first and foremost, a boat hull cleaning & services organization that performs best management practices. We offer extensive quality control inspections to ensure that our underwater hull cleaning work is of the highest quality, with satisfaction as our top priority to the customer.
We accommodate customized hull cleaning schedules and serve all locations from yacht clubs, shipyards, marinas and moorings to private residences and docks accessible by water or not — all areas from Shelter Island, Point Loma, Harbor Island, Downtown, Coronado, South Bay and Mission Bay.
Our staff is available at our office located in Shelter Island and Sunroad every business day, Monday thru Friday from 9 A.M. to 5 P.M., to answer questions and respond to requests and concerns of our customers.
Justin Time Diving is fully licensed and insured for the peace of mind of the boat owners who employ us. Justin Time Diving offers a professional reference for local tradesmen/vendors for all your boating needs.
Services
Services we provide
Hull Cleaning
View serviceBy hand with soft pads, going through all thru‑hulls and intakes. We can power wash upon request.
Underwater inspection of your boat.
Zinc replacement as needed. Underwater videos upon request.

Top Wash
View serviceOn a regular schedule (bi-weekly or monthly) or as a one-time service, we offer a complete wash and chamois hand dry of all exterior surfaces, including vinyl, metal, non-skid, windows and isinglass.

Wax and Detail
View serviceThe full detail includes all of the services of the boat wash plus the application of a high-quality wax on all fiberglass and gelcoat surfaces.
Polishing of metal handrails and hardware, Rain-X applied to glass and insulator wax applied to isinglass can be elected as well.

Cabin Cleaning
View service- Carpet and sofa cleaning: removes stains, odors, bacteria and dust mites.
- Roof maintenance: protects against salt, humidity and sun damage.
- Yachts face constant moisture, fostering bacteria, mold and odors that harm health and materials.

Mechanic & Tune-Up
View serviceTune-ups, oil and filter changes, impeller replacement and mechanical repairs, right at your slip.
We follow your engine's maintenance schedule and troubleshoot when something isn't working as it should.

14 Reasons Why HireJustin Time Diving

Specialized Expertise
With years of experience in the industry, we are hull cleaning specialists who understand the unique needs of vessels.
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Trained Team
Our highly trained and qualified team can handle various hull types, ensuring effective cleaning.
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Advanced Technology
We utilize state-of-the-art equipment and technology to ensure deep and long-lasting cleaning.
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Eco‑Friendly Products
We prioritize environmentally friendly products and methods to minimize our ecological footprint.
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Customization
Every vessel is unique, and we tailor our services to individual cleaning requirements.
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Flexible Scheduling
We offer flexible scheduling to accommodate vessel owners' demands.
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Damage Prevention
Our careful approach and cleaning methods prevent hull damage, extending the vessel's lifespan.
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Visible Results
We guarantee visible results, enhancing vessel efficiency and performance on the water.
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Free Assessment
We provide free assessments to offer a detailed analysis of cleaning needs.
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Competitive Pricing
Our services offer excellent value compared to other options in the market.
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Customer Service
Customer satisfaction is paramount, and we ensure your questions and concerns are always addressed.
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Long‑Term Partnership
We aim to build lasting relationships, tending to your cleaning needs over time.
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Satisfied References
We have a track record of satisfied customers who attest to the quality of our services.
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Satisfaction Guarantee
If you're not satisfied with the outcome, we're committed to rectifying the situation until you're content.
JUSTIN TIME DIVING
Our latest services
Testimonials
J World SailingJustin Time Diving has helped keep the bottoms of our 10 racing sailboats in great condition. Not only does Gustavo come clean right before a race but also helps with post race inspections. The attention to detail is unmatched to other services!
Paul CrownoverThese guys are great! I’ve been using them for the last couple of years on our rental fleet and they do a stellar job! Reliable, punctual, and professional. 10/10 would definitely recommend.
MarkJustin is very conscientious and detail orientated. We dry sail our 52 foot boat San Diego and are able to continually inspect his work out of the water. It always looks good as new. Thanks very much!
Rene' RoquesWow, great service! Personable, on time, fairly priced, knowledgeable and has a can-do attitude. Looking forward to using them again
Kayla McDanielGus was our diver for a few months prior to selling our late father's sailboat. He was the most reliable diver we've worked with this year. His services were fairly priced, he was very communicative and reliable. He was always quick to get back to me whenever I reached out to him. He shared photos with us after the initial cleaning. Really pleasant experience working with Gus. I'd recommend Justin Time Diving to anyone looking for a reliable diver who does good work and a good rate.
Jessica BWe have been using Justin for 2 years now. We are so impressed with his work and customer service! Not only does he clean our hul and replace our zincs, he details our boat once a year and it is flawless! Great work, and great prices! We highly highly recommend him! Thanks Justin!!!
- Brian C
Called Justin to see if I could get the bottom of my hull cleaned and within 3 days he performed an inspection, cleaned my hull, and had me on a schedule at an extremely affordable rate! Great service and communication.
- Dan Banks
I have had boats for a long time. Justing has been the best diver i have worked with. He is responsible, on time, and cares about my boat as much as i do.
- Eric
Justin is a true professional and very knowledgeable at his job. He does a fantastic job with maintaining my boat's at a fair price. He'll tell you upfront if you have any issues and his recommendations obviously come from experience. Top Quality work and Service!
Ed BadrakJustin has service my boat for well over four years. The integrity and ethics that he demonstrated while taking care of my boat is beyond reproach. He kept me informed about the condition of the bottom of my boat. He always advised me on the season's planned maintenance schedule. I highly recommend this individual to anyone looking for a person who will care and love their boat as you do. A true professional
- chuck harris
Justin unlike a number of boat divers knows how to take care of your boat. He doesn't try and have you replace items such as zinc before it's time. He is willing and able to do multiple things on your boat or will give you the name of the right person. Knowing Justin for a number of years and having work on my boat I would highly recommend him.
Marc BSo I've known Justin for several years now, and he's taking excellent care of my boat! He's a very experienced diver and knows exactly what he's doing and how to take great care of boats. I highly recommend his services. And one of his most important attributes is he's conscientious and takes care of what needs to be done with no nonsense. You can definitely count on him and the work that he does is always perfect.
- M B
I'm the owner of a 42' Eggharbor Sport Fishing Yacht. Justin has been servicing my boat the past 3 years now since we had the bottom painted. Recently found out the bottom has an extra 2-3 years before repainting again. Typically I am repainting every 5 years because of how much use we have, or maybe that our last diver was doing the wrong job, possibly no job... He has saved me a BOAT load of money by the quality work that he is doing. Also best price for metals. Highly recommend!
- Rich Zbinden
Justin Time Diving is hands down the best. Justin is extremely professional always on schedule with our appointments, does nothing but the highest quality work. I will refer him to any of my friends, family, or someone just looking for a cleaning!
Frequently Asked
General Questions
Bottom cleaning and painting are two of the most important maintenance issues for yacht owners to be constantly aware of. We highly recommend getting the bottom of your boat cleaned every 3 weeks between the months of April and October. The reason is that marine growth increases substantially due to warm waters. At this time, we usually see the growth of green and brown algae, and also sea animals like white coral worms.
Contact Detail
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