Office Location: 9818 Anderson Hwy, Piedmont, SC 29673
(864) 382-1939
Tankless Water Heater Installation, Service & Repair
Endless hot water. Lower energy costs. Reliable performance for your home.
Tankless water heaters are one of the best upgrades you can make to your home — but they need proper installation and routine maintenance to perform at their best. Cline Plumbing offers professional tankless water heater installation, replacement, descaling/flush service, and fast repairs. As a family-owned plumbing company, we ensure every system is properly sized, safely installed, and built for long-term reliability.
Tankless Water Heater Installation
A properly sized and installed tankless system can provide unlimited hot water while reducing your energy usage. We install high-quality tankless water heaters with clean workmanship and code-compliant gas, venting, and water connections.
Our installation services include:
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Correct system sizing for your home’s demand
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Gas line upgrades (if needed)
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Proper venting and air intake setup
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Water line and valve configuration
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Installation of isolation valves
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Startup testing and performance check
We make sure your new tankless system is installed safely and operates efficiently from day one.
Tankless Water Heater Replacement
If your current tankless unit is aging, inefficient, or no longer meeting your home’s demand, we provide professional replacement services.
We replace tankless systems that have:
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Consistent error codes
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Poor performance or weak hot water output
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Leaks or internal corrosion
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Outdated technology
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Costly repair issues
We’ll recommend the right-sized unit for your home and install it according to all manufacturer requirements.
Tankless Service, Descaling & Annual Flush
Tankless heaters require annual maintenance to remove mineral buildup and keep the system working efficiently. Descaling extends the lifespan of your unit and prevents performance issues.
Our maintenance service includes:
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Full system flush/descale
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Cleaning of isolation valves and screens
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Inspection for leaks or corrosion
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Burner and ignition check
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Temperature adjustment
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Error code check and reset
Regular service helps prevent expensive repairs and ensures continuous, reliable hot water.
Tankless Water Heater Repair
If your tankless system is showing error codes, making noise, or not heating consistently, we diagnose and repair the problem quickly.
We fix issues such as:
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Temperature fluctuation
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Low hot water output
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Ignition failure
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Mineral buildup
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Error codes
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Leaking fittings or internal parts
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Gas flow issues
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Exhaust/venting problems
Our goal is to repair your tankless unit whenever possible and only recommend replacement when absolutely necessary.
Signs Your Tankless Water Heater Needs Service
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Hot water cuts in and out
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Sudden error codes
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Reduced water temperature or flow
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Long delay before hot water arrives
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Odors or unusual noises during operation
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Scaling or mineral buildup
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More than a year since last flush
Don’t wait—maintenance keeps your system reliable and efficient.
Signs Your Tankless Water Heater Needs Service
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Hot water cuts in and out
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Sudden error codes
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Reduced water temperature or flow
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Long delay before hot water arrives
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Odors or unusual noises during operation
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Scaling or mineral buildup
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More than a year since last flush
Don’t wait—maintenance keeps your system reliable and efficient.
Schedule Tankless Water Heater Service
If you're in the Greenville SC, area, whether you need installation, replacement, annual maintenance, or repairs, Cline Plumbing provides expert service tailored to your home.
Contact us today for tankless water heater service or installation.
(864)382-1939