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Last Updated: June 10, 2026

Reliable Plumbing Services

Tankless Water Heater Repair

Your tankless water heater works hard to deliver hot water whenever you need it, but even the most reliable systems eventually require professional attention. Whether your unit is displaying error codes, producing inconsistent temperatures, or simply not performing as it used to, Plumb Pro+ provides certified tankless water heater repair throughout Charleston, Goose Creek, Hilton Head, and surrounding areas.

As a family-owned business with over 20 years of experience and 1000+ five-star reviews, we have the expertise to diagnose and resolve issues quickly.

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Tankless Water Heater Installation

Expert Repair Services Across the Lowcountry

Tankless systems last long, but they require specialized knowledge to repair correctly. Our certified technicians understand the unique demands these units face, especially in the Lowcountry, where mineral content and water quality can accelerate wear on internal components. If you’re experiencing problems, our comprehensive water heater repair services cover tankless and traditional systems throughout the area.

We serve residential and commercial customers, though the majority of our work focuses on helping homeowners. Regular tankless water heater maintenance can prevent many common problems before they disrupt your household. We recommend annual flushing to remove mineral buildup — a service that extends system life and maintains peak efficiency.

Common Tankless Water Heater Issues We Resolve

Understanding what can go wrong helps you recognize when it’s time to call for professional help:

  • Inconsistent water temperature: Fluctuating hot water often indicates sensor malfunctions, mineral buildup, or flow rate issues that disrupt proper heating cycles.
  • Error codes on display: Modern tankless units communicate issues through error codes, so our technicians interpret these messages and address the underlying causes.
  • Reduced flow or pressure: When your system can’t keep up with demand, it may indicate a clogged filter, a scaled heat exchanger, or an insufficient gas supply.
  • Unit won’t ignite: Ignition failures can stem from gas valve issues, electrical connection problems, or dirty burners that prevent proper startup.
  • Unusual noises or vibrations: Rumbling, banging, and rattling typically indicate sediment buildup or loose components that need immediate attention.
  • Visible leaks or corrosion: Any water around your unit requires prompt inspection to prevent damage and ensure safe, secure operation.

Why Lowcountry Families Choose Plumb Pro+

As a locally operated company serving our neighbors across the Lowcountry, we’re invested in the health and prosperity of our community:

  • Trustworthy diagnostics: We identify the actual problem, not just the symptoms, and explain your options clearly before beginning work.
  • Available around the clock: Hot water emergencies don’t follow a schedule, which is why our emergency repair service is available 24/7.
  • Strategic, quality-focused service: Each technician handles just a few calls per day, ensuring your repair receives the attention it deserves.
  • Two Lowcountry locations: From Charleston to Goose Creek and Hilton Head to Bluffton, our teams are strategically positioned to serve you quickly.
  • 10 years of complete protection: Our confidence in quality workmanship extends to every qualifying installation — learn more about our comprehensive 10-Year Worry-Free Guarantee and what it covers.
  • Lifetime membership programs: Plumb Pro+ offers lifetime membership options with no monthly fees, giving you priority scheduling and maintenance benefits.
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