Navien Tankless Water Heaters and Combi-Boilers in the Triangle
Element Service Group installs, services, and repairs Navien condensing tankless water heaters and combi-boilers across Apex, Cary, Raleigh, and the Triangle.
Navien Tankless Water Heaters and Combi-Boilers, Installed and Serviced by ESG
Navien, made by Kyungdong Navien, is one of the most recognized names in condensing tankless water heaters. The brand built its reputation on high-efficiency, gas-fired systems that deliver continuous hot water while taking up a fraction of the space of a traditional tank. Many of the systems we see across the Triangle are ENERGY STAR rated, built around dual stainless steel heat exchangers, and engineered for low NOx operation, a combination that appeals to homeowners who want efficiency without giving up performance.
Element Service Group is a residential plumbing company based in Apex, North Carolina, and all of our work is done by licensed plumbers. We install, service, and repair Navien systems, and we use genuine manufacturer parts. We are an independent service provider, not a factory-authorized dealer, which means you work directly with the same local team for installation, annual maintenance, and any repair down the road. That continuity matters with tankless equipment, where correct sizing, venting, and gas supply make the difference between a system that runs reliably and one that throws error codes.
Tankless and combi systems reward proper care. Minerals in the water form scale inside a heat exchanger over time, and homes on well water usually see it faster than homes on soft town water. Left alone, scale reduces efficiency, slows flow, and shortens the life of the unit. Our team handles the full picture: new installations and replacements, recirculation setup, combi-boiler service, venting and gas work, and the regular descaling that keeps a Navien running at the efficiency it was designed for.
Navien services we offer
Our certified technicians provide comprehensive Navien service.
Navien Tankless Water Heaters
Endless hot water on demand with energy-efficient tankless systems. Save space, save energy, and never run out of hot water.
Learn moreNavien Water Heater Installation
Tank and tankless water heater options properly sized for your household. Professional installation with same-day availability.
Learn moreNavien Water Heater Repair
No hot water? We diagnose and repair tank and tankless water heaters of all brands with upfront pricing and fast turnaround.
Learn moreWhy choose us for Navien
Licensed plumbers
Every Navien installation, service call, and repair is done by licensed plumbers, so the gas, venting, and water connections are done right the first time.
Genuine manufacturer parts
When a repair calls for a replacement component, we use genuine Navien parts that match your system, helping preserve its performance and rated efficiency.
One local team, start to finish
As an independent service provider, ESG handles installation, annual maintenance, and future repairs with the same crew, giving you a single point of contact for the life of the system.
Deep tankless experience
We work on condensing tankless systems every week and are experienced with the category broadly, including other brands like Rinnai, so we understand how these units behave in real Triangle homes.
Recirculation done right
From Navien models with built-in ComfortFlow recirculation to external recirculation setups, we configure your system so hot water reaches your fixtures faster.
Navien questions, answered
Find Navien service near you
We offer Navien service throughout these communities.
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Licensed & Insured
Fully licensed and insured for your protection
24/7 Emergency HVAC
Available when you need us most
16+ Years
Over a decade of trusted service