Water Heater Repair Legendary service for all of your water related needs

Water Heater Repair in Manassas

When your water heater stops working, everything from showers to laundry grinds to a halt. At Mermaid Water & Plumbing, we provide reliable water heater repair services throughout Manassas and nearby communities.

If you’ve noticed any signs of trouble with your water heater, don’t wait until the system fails completely. Whether your system is leaking, producing inconsistent temperatures, or making strange noises, our licensed plumbers can quickly diagnose and fix the issue so you can get back to your routine.

Call Mermaid Water & Plumbing at (703) 686-5931 or contact us online for fast, professional service and an honest assessment of your repair options.

Common Water Heater Problems We Fix

Water heaters are built to last, but over time, wear and tear can cause problems that affect performance and safety.

Our experienced team can handle all types of repairs for traditional tank and tankless systems, including:

No Hot Water. A faulty heating element, thermostat, or pilot light can prevent your unit from heating properly. We’ll test each component and replace what’s necessary to restore consistent water temperature.
Water Leaks. Leaks near the base of your heater or along the connecting lines often result from corrosion, loose fittings, or a failing pressure relief valve. Our plumbers can identify the source and stop the leak quickly to mitigate water damage.
Inconsistent Temperatures. Fluctuating water temperature usually indicates sediment buildup or a failing thermostat. We flush the tank, clean components, and recalibrate your system to deliver steady performance.
Strange Noises. Popping or rumbling sounds often occur when mineral deposits harden inside the tank. We’ll safely drain and flush the unit to remove sediment and improve efficiency.
Discolored or Cloudy Water. Rusty or murky hot water may signal corrosion inside your tank or an aging anode rod. We’ll inspect and replace corroded parts to prevent further damage.

Each repair begins with a full inspection to ensure the root cause is addressed—not just the surface problem. That’s how we help our Manassas customers avoid repeat breakdowns and unnecessary replacement costs.

Gas & Electric Water Heater Repairs

Whether you rely on a gas or electric water heater, our technicians have the tools and training to get it working efficiently again.

Electric Water Heaters

Electric units often experience thermostat or heating element failures that cause lukewarm or cold water. We test and replace damaged parts, check circuit breakers, and ensure safe operation to prevent future power issues.

Gas Water Heaters

Gas heaters may develop problems with the pilot light, thermocouple, or gas control valve. We handle these repairs safely, checking for leaks and ensuring proper venting for reliable, energy-efficient performance.

We also repair tankless models, performing descaling and maintenance to keep your system producing endless hot water without interruptions.

Signs It’s Time to Call a Plumber

Many homeowners aren’t sure when a small issue becomes serious enough for professional help.

You should reach out to our team if you notice:

Limited or no hot water supply
Leaks around the tank or fittings
Water that smells metallic or looks rusty
Banging or knocking sounds
Higher-than-usual energy bills
Hot water running out faster than normal

These symptoms often point to developing mechanical issues or internal corrosion. Addressing them early can extend your system’s life and save you from an unexpected breakdown.

Consistent, Reliable Water Heater Repair

Attempting a DIY repair on a water heater can be risky and costly.

Working with our professional plumbers ensures:

Accurate Diagnosis. We identify the real cause of the problem using advanced diagnostic tools.
Safe Repairs. Our team follows all safety standards for gas, electric, and water connections. · Emergency Repairs. Water heater issues can happen at any time. Our team is available 24/7 to provide immediate assistance.
Long-Term Reliability. Proper repairs restore efficiency and extend the lifespan of your water heater.
Cost Savings. Fixing minor issues now prevents expensive replacements later.

If you’re experiencing water heater problems, let the local team at Mermaid Water & Plumbing restore your hot water fast. We’re known throughout Manassas for our honest recommendations, quality workmanship, and customer-focused service.

With over 40 years of experience serving homeowners across Northern Virginia, we know how to handle every type of water heater—from older models to the latest energy-efficient systems.

Call Mermaid Water & Plumbing today at (703) 686-5931 or contact us online to schedule your water heater repair or inspection. We’ll help you enjoy hot water again, quickly and affordably.

Thanks to Mermaid and this system we can live a normal water usage life! I wish I would have called them from the beginning!
"This is long but worth the read if you have a low yield or low recovery well. Great experience with Mermaid Water Systems, especially Randy, Adam, Brad, and Patrick.

I have a very low yield and low recovery (about 2 pints per minute) well. My old water filtration and softener system was put in by an “expert” in 2022. The way the system was set up, we could use about 8 gallons of water in the pressure tank before the well pump would come on, with a normal 2-5 gallon a minute well this would be fine. Due to the low storage capacity and very low recovery rate of my well we had to be very careful about water usage, especially on days when the filter and softener needed to backwash and regenerate. Even after the system was adjusted for short regenerations, the well ran dry several times. I finally said enough is enough and called Mermaid.

I worked with Randy and we found a product call the “Well Manager”. It is essentially a large tank with a computerized control panel. The system replaces a traditional pressure tank. The control panel runs the well pump on a timer based on the well recovery rate. There are safety mechanisms, such as flow and pressure detection, and electrical amperage monitoring, that will shut the well pump off if it begins to over pump the well. Essentially the system “sips” water from the well and deposits it in the tank whether you are using water in the house or not. It will do this until the tank is full. Currently it is set up so my well pump runs for 40 seconds every 28 minutes when the tank is not full. The settings are easily adjustable to balance water intake and pump cycles. When the house needs water, it is drawn from the tank by a constant pressure pump. There is a sediment filter before it goes into the tank (not a concern to have it between the well and tank since the pump is operated on a timer instead of a pressure switch). After the tank, the water goes to a kinetico filter and softening system, then through a UVC light to the faucets/appliances. I can actually do multiple loads of wash, run the dishwasher whenever, do everything concurrently if I want. The well manager continues to refill the tank by “sipping” from the well around the clock. It automatically shuts off when the tank is full. I’m amazed, it saved me from drilling a new well where results are not guaranteed, I could have had the same low yield and recovery issues.

Thanks to Mermaid and this system we can live a normal water usage life! I wish I would have called them from the beginning! The professionalism, clean easy to follow plumbing, and toleration of all of my (many) questions really set the Mermaid team above any other plumbers I have used in the past. Again, Randy, Brad, Adam, and Patrick were great, I’ll call them for all of my plumbing needs!"

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