Underwater Hull Cleaning
Removal of slime, algae, barnacles, and marine growth to restore hydrodynamic performance and reduce fuel-consuming drag.
Diving Services / East Coast
Underwater Maintenance
& Repair
Professional underwater maintenance, inspection, cleaning, and repair for private, commercial, and government vessels across the East Coast. If it needs to be done below the waterline, call Neptune.
Complete Underwater Service
From routine maintenance to specialized underwater repair, Neptune provides one point of contact for inspection, service, and project coordination through completion.
Services
Anything Below
the Waterline.
Hull cleaning gets us under the boat. From there we handle the maintenance, inspection, and repair work that keeps vessels running — and bring in qualified specialists when a job calls for it.
Underwater Maintenance
Routine in-water carePropeller & Running Gear
Focused cleaning for propellers, shafts, rudders, intakes, and through-hulls to protect performance and mechanical reliability.
Zinc & Anode Replacement
Inspection and replacement of sacrificial anodes that protect submerged metal components from galvanic corrosion.
Recurring Maintenance Plans
Weekly, bi-weekly, monthly, and custom seasonal schedules for private owners, fleets, and marinas.
Underwater Repair
Technical work without a haul-outUnderwater Repair & Technical Services
Minor underwater repairs, intake and through-hull work, underwater hardware inspection, and minor component replacement.
Fouled Prop & Line Removal
Clearing wrapped lines, rope, netting, and debris from propellers, shafts, and running gear so the vessel can get back underway.
Specialized Contracted Work
For projects outside routine maintenance, Neptune coordinates qualified commercial diving personnel and equipment and manages the job as your single point of contact.
Inspection & Support
Know what’s down thereUnderwater Inspections & Assessments
Condition checks for fouling, impact damage, corrosion, and running-gear issues, with photo documentation, condition reports, and pre-haul or pre-purchase assessments.
Vessel Care
Above the waterlineDetailing & Reupholstery
Interior and exterior detailing for decks, cabins, and brightwork, plus repair and replacement of worn marine seating and cushions.
Seasonal Shrink Wrapping
Mobile shrink wrapping for powerboats, sailboats, and commercial vessels at marinas, boatyards, private properties, and storage facilities across Connecticut and Rhode Island.
Not Sure What You Need?
Start With an Underwater Assessment.
We inspect the vessel, document its condition, identify maintenance or repair needs, and recommend next steps. Don’t see the service you need? Send us the scope — Neptune can coordinate specialized underwater personnel and equipment for projects outside routine maintenance.
Field Capability
One Point of Contact, Start to Finish
Neptune brings a disciplined, service-first approach to everything below the waterline. We perform the work we are equipped for, coordinate qualified specialists for anything beyond it, schedule around vessel access, and report back directly when the job is complete.
Vessel-Focused ServiceWorkboat, government, marina, and private-vessel support.
Recurring MaintenanceWeekly, bi-weekly, and custom seasonal schedules.
Specialized SupportQualified divers, technicians, and equipment coordinated when the scope requires it.
Ready
to DiveEast Coast Service
to DiveEast Coast Service
Before & After
The Difference,
Below the Waterline.
Fouling is easy to ignore because nobody sees it. We photograph the hull underwater before we start and again once the surface is clean, so owners and captains know exactly what came off the boat.
Photographed in the water, on the job
No haul-out required
Condition notes sent after every visit
Service Sectors
One Standard.
Every Vessel.
The same attention to submerged systems and vessel readiness applies whether the job supports a government vessel or a single owner-operated boat.
Government Support
Responsive underwater maintenance, inspection, and repair support for operational vessels and managed fleets.
Commercial Workboats
Keep working hulls clean, inspected, and in service.
Super Yachts
Discreet in-water care between charters and passages.
Marinas & Yacht Clubs
Dependable on-site service for members and facilities.
Private Vessels
Scheduled care for sail and power boats.
Condition Assessment
Know What’s Down There.
See what is happening below the waterline before it becomes a problem. Neptune inspects the vessel, documents its condition, and recommends the right next steps — whether that’s a cleaning, a repair, or nothing at all.
- Photo documentation
- Condition report
- Recommended next steps
Why Neptune
No Guesswork.
No Chasing.
Professional service means more than the work underwater. It means responsive scheduling, clear expectations, and direct communication from the person responsible for the job.
Gear on the dock, on schedule — mobile service across the East Coast.
Consistent Scheduling
Clear arrival coordination and dependable recurring service plans throughout the season.
Direct Diver Access
Call or text our lead diver directly to discuss vessel condition, scope, and timing — whether it is a cleaning or a repair.
Practical Reporting
Receive a straightforward update on completed work and anything observed underwater.
East Coast Mobility
Mobile service across the East Coast, coordinated around your vessel's location and schedule.
Request Service
Put Neptune on the Job.
Tell us where the vessel is located and what needs to be done underwater. Routine cleaning or specialized repair, we respond with scheduling and scope details as quickly as possible.
Lead Diver / Dispatch860-333-8522