Serving Charleston & Greenville Areas
Trusted by 7376+ Customers
Tankless Water Heater Installation, Repair, and Replacement

Access to instantaneous hot water defines the comfort of a high-functioning South Carolina home. While traditional storage tanks keep 50 gallons of water hot 24 hours a day, a tankless system only activates when you turn on a tap. This shift from batch heating to on-demand flow eliminates the frustration of running out of hot water during back-to-back showers. Preferred Home Services specializes in the total lifecycle of these plumbing units, focusing on precision thermal exchange and maximum energy conservation.
Upgrade your home to a limitless supply of hot water by requesting a professional system consultation today.

Strategic System Installation and Seamless Unit Replacement
Moving from a bulky tank to a wall-mounted on-demand system requires more than just a pipe connection; it requires a calculated understanding of your home’s peak Gallons Per Minute (GPM) demand. Our team handles the entire transition, ensuring your new heating unit is perfectly matched to your family’s actual water usage.
- Lowering monthly utility overhead occurs when we install high-efficiency units that only consume gas or electricity during active use.
- Maximizing indoor square footage is a major benefit of replacement, as these compact units free up significant space in closets or garages.
- Modernizing fuel and venting logistics ensures that your gas lines and exhaust pipes meet current safety standards for high-output burners.
- Doubling equipment lifespan occurs when we replace 10-year storage tanks with tankless technology designed to last up to 30 years.
Our master plumbers prioritize a clean and professional setup that treats your home’s utility room with the same respect as a finished living space.
Precision Mechanical Repair and Thermal Restoration
A lack of heat or a drop in water volume often indicates a specific mechanical issue within your tankless unit. We approach every repair with a focus on restoring the fire-to-flow ratio, ensuring the internal heating elements engage as needed.
- Isolating ignition failures to the sensors and spark electrodes can prevent the unit from firing.
- Neutralizing temperature fluctuations addresses the internal calcification that interferes with the heat exchanger’s performance.
- Identifying unusual vibration or noise helps prevent mechanical wear from causing a total system lockout.
- Sealing internal supply leaks protects the sensitive circuit boards and electrical components housed inside the unit.
Every repair visit includes a comprehensive evaluation of your unit’s internal filters and safety bypass valves to ensure reliable operation during your busiest times of the day.
Proactive Descaling and Long-Term Efficiency Maintenance
The primary enemy of an on-demand heater is the mineral content found in the local water supply. Over time, calcium builds up on the heat exchanger, creating a barrier that forces the unit to work harder and run hotter. Our annual maintenance protocols include a high-velocity flush to remove these deposits and preserve your manufacturer’s warranty.
By joining our Preferred Partner Plan, you secure a scheduled defense against efficiency loss. We do not just check the unit; we perform a forensic cleaning of the burner assembly and intake filters to help keep your utility bills as low as possible.

Schedule Service Today!
Why Go Preferred For Full Service Hot Water?
Choosing a team that handles installation, repair, and replacement under one roof provides the accountability you need for such a vital appliance. We have spent over three decades perfecting the science of on-demand heating in South Carolina, ensuring our customers receive expert advice and flat-rate value. When you choose Preferred Home Services, you are choosing a partner dedicated to technical excellence and your family’s daily comfort.
- Custom GPM calculations overcome the limitations of a small unit by ensuring your heater can handle multiple fixtures simultaneously.
- Same-day service availability means you never have to wait through a cold weekend for a professional repair or replacement.
- Flexible payment options make it easier to invest in high-efficiency technology that pays for itself over time.
- A 100 percent satisfaction guarantee backstops every task we perform, from a simple sensor cleaning to a full-scale system upgrade.
Investing in a specialized hot water team ensures your home maintains a steady and high efficiency thermal supply for decades.
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