Marine Plumbing St. Petersburg, FL
When a leaking bilge pump, a failed raw-water pump, or a backed-up marine head threatens your day on Tampa Bay, St. Pete Mobile Marine Mechanic brings certified marine plumbing expertise straight to your slip, lift, or driveway. We serve St. Petersburg and the surrounding Gulf Coast communities so you never have to haul your boat to a shop. Call (727) 739-0447 and we’ll get your boat’s systems running clean and dry.
Trusted Service You Can Rely On
Wet bilges, dripping hoses, and temperamental marine toilets are some of the most frustrating problems a boat owner faces — and they rarely wait for a convenient moment. Our boat service covers the full picture, but marine plumbing is a specialty we take seriously: from raw-water cooling loops to holding tanks, our technicians diagnose the root cause and fix it right the first time. Pair that with our fiberglass boat repair capabilities and you have one crew that handles nearly everything your vessel needs.
Why Choose Us?
- We come to your dock or driveway to diagnose and repair bilge pumps, raw-water pumps, hoses, and through-hulls — no trailering required.
- All marine plumbing work is performed to ABYC standards, so every fitting, hose clamp, and seacock replacement meets recognized safety guidelines.
- We carry common bilge pumps, impellers, sanitation hoses, and fittings on the service truck, cutting turnaround time on most repairs to a single visit.
- One crew handles plumbing alongside electrical and engine work, so a raw-water cooling failure doesn't mean scheduling three separate contractors.
- Every job starts with a free quote — you know the cost before we turn a wrench.
Bilge Pump Repair & Replacement
A bilge pump is your boat's last line of defense against flooding, so a failed float switch or burned-out motor is never a minor issue. We test the full bilge system — pump, switch, wiring, and discharge hose — and replace any component that isn't performing reliably. Most bilge pump repairs are completed in a single visit at your marina.
Serving St. Petersburg & Surrounding Areas
St. Pete Mobile Marine Mechanic provides marine plumbing service throughout Pinellas and Hillsborough counties and into Manatee and Sarasota counties. We regularly work at marinas and private docks in boat service communities including Clearwater, Largo, St. Pete Beach, Indian Rocks Beach, Treasure Island, Palm Harbor, and Dunedin. We also cross the bay to serve Tampa, Bradenton, Palmetto, and Sarasota. Within St. Petersburg itself we cover every neighborhood — from Shore Acres and Bahama Shores to Coquina Key and Greater Pinellas Point. If your boat is within reach of Tampa Bay, we can come to you.
St. Petersburg Neighborhoods
Greater Pinellas Point, Bahama Shores, Coquina Key, Shore Acres
Nearby Communities
Clearwater, Largo, Pinellas Park, St. Pete Beach, Indian Rocks Beach, Treasure Island, Tampa, Palm Harbor, Dunedin, Bradenton, Palmetto, Sarasota
St. Pete Mobile Marine Mechanic
Common Signs You Need Service
Catching a marine plumbing problem early almost always means a simpler repair and a lower bill — left alone, a weeping through-hull or a failing bilge pump can escalate into a safety emergency or a waterlogged cabin.
Standing Water in Bilge:
If your bilge pump is running constantly or you find water that shouldn't be there, a through-hull, hose fitting, or shaft seal may be leaking. Investigate immediately — water ingress can sink a boat at the dock.
Persistent Sewage Odor:
A smell that won't go away usually points to a permeated sanitation hose, a cracked holding tank, or a failed joker valve. These issues rarely resolve on their own and tend to worsen in Florida's heat.
Weak or No Bilge Pump Output:
A pump that hums but moves little water likely has a clogged impeller or a kinked discharge hose. A pump that doesn't respond at all may have a failed float switch or a wiring fault.
Overheating Engine Alarm:
A raw-water impeller failure or blocked cooling passage will trigger your overheat alarm. Shut down immediately and call for service — running an overheated engine even briefly can cause serious internal damage.
Frequently Asked Questions
How much does bilge pump repair cost on a boat?
Cost depends on whether the pump motor, float switch, or wiring needs replacing, and on the pump's size and location. Most single-pump repairs fall in a straightforward range, and we always provide a free quote before starting work so there are no surprises.
Can you repair a marine toilet (boat head) at my slip?
Yes — head repair is one of the most common calls we handle, and we stock joker valves, macerator parts, and sanitation hose on the truck. In most cases we can diagnose and fix the problem in one visit without you ever leaving the marina.
How often should raw-water impellers be replaced?
Most manufacturers recommend replacing the raw-water impeller every 100–200 engine hours or once a season, whichever comes first. In Florida's year-round boating climate we often recommend annual replacement as a baseline, especially before the busy spring season.
What are the signs that a through-hull fitting needs replacing?
Look for weeping or mineral deposits around the fitting, a seacock that is stiff or impossible to turn, or visible corrosion on bronze fittings. Any of these signs warrants a prompt inspection — a failed through-hull below the waterline is a serious flooding risk.
Do you service holding tanks and sanitation systems?
Absolutely. We replace Y-valves, deck pump-out fittings, and sanitation hose, and we inspect tank integrity and vent lines. Keeping your holding tank system sealed is both a legal requirement in Florida waters and the best way to eliminate persistent boat odors.
Ready to stop chasing leaks and get your boat's plumbing sorted out properly?
Call (727) 739-0447 to speak with a technician or use the button below to Get a Free Quote — we'll come to your dock, diagnose the problem, and give you a clear price before any work begins.