Water Heater Repair

Is your water heater rumbling, leaking, or failing to produce enough hot water? Don't let a faulty water heater disrupt your comfort and peace of mind. At Shark Plumbing, we specialize in expert water heater repair services, helping homeowners and businesses in San Jose, Fremont, Milpitas, and the surrounding areas get their hot water back fast. Our licensed and insured plumbers are equipped to diagnose and fix a wide range of water heater problems, whether you have a traditional tank model or a modern tankless unit.

Common Water Heater Problems We Fix

A water heater can experience a variety of issues, and our team has the knowledge and tools to handle them all. We provide efficient, reliable repairs for problems such as:

No Hot Water: A complete lack of hot water can be caused by a tripped circuit breaker, a faulty heating element (in electric models), a pilot light that has gone out (in gas models), or a malfunctioning thermostat. We’ll quickly identify the source of the problem and get your unit back up and running.


Insufficient Hot Water: If your hot water runs out too quickly, the issue could be an undersized unit, a broken dip tube that's mixing cold and hot water, or sediment buildup at the bottom of the tank.


Strange Noises: Popping, rumbling, or knocking sounds are often a sign of sediment buildup. As the heating element heats the water, trapped sediment and minerals can cause the water to boil, creating noise. We can perform a professional flush to clear out the sediment and restore efficiency.


Leaks: Water leaking from the tank or connections can cause serious damage. While a leaky drain valve or loose connection can often be tightened, a leak from the tank itself usually signals that the tank has corroded and requires a full replacement.


Rusty or Discolored Water: Brown, red, or rusty water from your hot water tap can mean the anode rod—the part that protects the tank from corrosion—has deteriorated. This is an early warning sign of a tank that is beginning to rust from the inside out.


Foul Odors: A "rotten egg" smell is typically caused by bacteria growing inside the water heater tank. This can be resolved with a professional flush and disinfection.

A plumber is fixing a sink pipe with a wrench.

Our Water Heater Repair Process

At Shark Plumbing, we make the replacement process simple and stress-free. Our approach is designed to provide you with a long-lasting, efficient, and reliable hot water solution.

Fast Response: We understand that a lack of hot water is an emergency. Our team is committed to providing a rapid response to your call to minimize discomfort and potential damage.

Thorough Diagnosis: We start with a comprehensive inspection of your water heater, using our expertise to accurately diagnose the root cause of the problem.

Upfront Pricing: Before any work begins, you'll receive a detailed, honest estimate. We'll explain the repair needed and the cost, so you can make an informed decision without any surprises.

Expert Repair: Our technicians arrive with a fully stocked truck, which means we can often perform the repair on the spot. We use only high-quality parts to ensure a lasting solution.

Honest Recommendation: We'll always provide our professional opinion on whether a repair is the most cost-effective solution or if a replacement is the better long-term investment. Our goal is to save you money and headaches down the road.

Don't let a faulty water heater leave you in the cold. For expert water heater repair you can trust, call Shark Plumbing at (408) 516-0226. We're here to restore your comfort and provide the best plumbing solutions in the Bay Area.

A man is fixing a boiler with a screwdriver.
A shark is holding a wrench and a plunger.

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