Tankless Water Heater Repair & Installation

Tankless systems can lose performance without warning. We fully inspect your unit, test components, and diagnose the root cause before recommending repair or replacement.

• No hot water

• Error code shutdowns

• Low hot water flow

• Ignition or flame failure

• Scaling and mineral buildup

• Fluctuating temperatures

• Venting or exhaust issues

• Water or gas connection leaks

Not every tankless unit needs replacement. We fully inspect your system, review error codes, test components, and determine whether repair, descaling, or replacement is the most cost-effective long-term solution.

Homeowners across Southeast Louisiana trust Serrano’s Plumbing Services for expert tankless diagnostics, quality installs, and long-lasting repairs. We take time to inspect your system fully, explain your options clearly, and deliver reliable hot water solutions built to last.

We provide tankless water heater repair and installation across Southeast Louisiana (North & South Shore), including Covington, Mandeville, Slidell, Ponchatoula, Independence, Tickfaw, Metairie, Kenner, New Orleans, Westwego, Gretna, and Marrero. See all service areas on our homepage.

We make tankless water heater service simple and stress-free from start to finish.

• Full system inspection

• Error code diagnostics

• Flow rate and pressure testing

• Heat exchanger evaluation

• Descaling and maintenance options

• Repair or replacement recommendations

• Code-compliant installation

• Final performance testing

Our goal is restoring efficient, reliable hot water as quickly as possible.