
Tankless water heater repair and installation across Southeast Louisiana (North & South Shore). We fix error codes, low hot water flow, ignition failures, and scaling issues—plus expert tank-to-tankless upgrades and code-compliant installs.
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

Tankless water heater install in a closet—clean, tested, and ready.
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.
Get answers about tankless water heater repair and installation, including error codes, low hot water flow, scaling issues, and when it’s time to replace your system.
This can be caused by ignition failure, flow sensor issues, scaling buildup, gas supply problems, or system error codes. We fully inspect and diagnose the root cause before recommending repair.
Yes. Tankless systems require routine descaling to remove mineral buildup inside the heat exchanger. Annual maintenance helps maintain efficiency and extend system lifespan.
Error codes indicate specific system faults such as ignition issues, venting problems, overheating, or flow restrictions. We read the codes, test the system, and perform the necessary repairs.
Tankless systems provide endless hot water, improved efficiency, and longer lifespan. We evaluate your home’s demand, gas supply, and venting to determine if conversion is a good fit.
Most repairs can be completed the same day once diagnostics are complete. Maintenance and descaling services are typically finished within a few hours.
Yes. We provide full tankless installation and tank-to-tankless conversions, including gas upgrades, venting, water line modifications, and code-compliant setup.
Need tankless water heater repair or installation? Serrano’s Plumbing Services delivers expert diagnostics, upgrades, and safe installs across Southeast Louisiana.
Serrano's Plumbing Services
46447 Durbin Rd Exd, Tickfaw, La 70466
Licensed • Insured • Residential & Commercial Plumbing
Call or Text: 225-305-8030
Email: jserrano@serranosplumbingservices.com
Proudly serving: Hammond • Tickfaw • Albany • Ponchatoula • Covington • Mandeville • Slidell • Metairie • Kenner • New Orleans
Emergency Plumbing Available 24/7
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