On-Demand Hot Water for Modern Homes
Tankless water heaters provide hot water only when you need it, eliminating the need for a large storage tank and reducing standby energy loss. At 360 Plumbing & Drain, we offer professional tankless water heater installation, repair, and replacement services in Mount Pleasant, SC. With over 14 years of plumbing experience, we help homeowners upgrade to efficient, space-saving systems that deliver consistent performance and long-term reliability.
How Tankless Water Heaters Work
Unlike traditional tank-style units, tankless water heaters heat water as it flows through the system. When a hot water tap is turned on, the unit activates and rapidly heats the water before delivering it directly to the fixture. This on-demand process provides continuous hot water without the limitations of a storage tank running empty.
Benefits of Switching to Tankless
Many Charleston homeowners choose tankless systems for their energy efficiency, compact design, and extended lifespan. Because these units operate only when hot water is needed, they can reduce energy consumption compared to traditional tanks. Tankless water heaters also take up less space, making them ideal for homes where storage area is limited.
Professional Tankless Water Heater Installation
Proper installation is critical to the safe and efficient operation of a tankless system. Installation may involve upgrading gas lines, adjusting venting, and ensuring adequate water pressure. Our licensed and insured team carefully evaluates your home’s plumbing and gas system to ensure the unit is correctly sized and installed according to code requirements.
Tankless Water Heater Repair Services
While tankless systems are highly efficient, they can still experience issues such as ignition problems, mineral buildup, error codes, or inconsistent temperature output. We provide accurate diagnostics and targeted repairs to restore reliable operation. Addressing minor issues early helps prevent more costly system failures down the line.
Replacing an Existing Tankless Unit
If your current tankless water heater is aging or no longer performing efficiently, replacement may be the best solution. We remove outdated systems safely and install modern, high-performance units designed for long-term durability. Upgrading to a newer model can improve energy efficiency and overall reliability.
Maintenance to Extend System Lifespan
Routine maintenance plays an important role in preserving the efficiency and longevity of a tankless water heater. Flushing the system to remove mineral buildup and inspecting components regularly can prevent performance issues. Regular service ensures optimal operation and protects your investment.



Gas Line Considerations for Tankless Systems
Many tankless water heaters require sufficient gas supply to operate properly. In some cases, gas line upgrades may be necessary to accommodate the system’s demand. We provide safe, code-compliant gas line services to ensure your tankless unit operates efficiently and safely.
Honest Recommendations and Transparent Pricing
360 Plumbing & Drain was founded to provide Charleston homeowners with straightforward service and fair pricing. We evaluate your household’s hot water needs and provide clear guidance on whether a tankless system is the right fit. Our recommendations are based on long-term performance and reliability—not commission-driven sales tactics.
Schedule Tankless Water Heater Service in Charleston Today
If you are considering upgrading to a tankless water heater or need repair service for your existing unit in Charleston, SC, contact 360 Plumbing & Drain. We offer dependable weekday service from 8:00 AM to 5:00 PM, along with after-hours emergency availability from 5:00 PM to 10:00 PM for urgent hot water concerns. Experience efficient, on-demand comfort with professional tankless water heater services you can trust.



