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 performed by NC-licensed master plumbers (Class 1). 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 flawlessly and one that throws error codes.
Tankless and combi systems reward proper care, and that is especially true here. Much of the Triangle has hard water, and the minerals that come with it form scale inside a heat exchanger over time. 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 annual 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.
Navien Water Heater Installation
Tank and tankless water heater options properly sized for your household. Professional installation with same-day availability.
Navien Water Heater Repair
No hot water? We diagnose and repair tank and tankless water heaters of all brands with upfront pricing and fast turnaround.
Why Choose Navien?
NC-licensed master plumbers
Every Navien installation, service call, and repair is performed by NC-licensed master plumbers (Class 1), 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.
Hard-water descaling expertise
The Triangle has hard water in many areas. Our annual descaling and flushing service clears mineral scale from the heat exchanger so your unit keeps running efficiently.
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.
Frequently Asked Questions About Navien
Does ESG install and service Navien tankless water heaters in the Triangle?
Yes. Element Service Group installs, services, and repairs Navien condensing tankless water heaters and combi-boilers throughout the Triangle, including Apex, Cary, Holly Springs, Morrisville, Fuquay-Varina, Raleigh, Durham, Chapel Hill, and Wake Forest. All work is performed by NC-licensed master plumbers.
Is ESG a factory-authorized Navien dealer?
No. ESG is an independent residential plumbing company, not a factory-authorized dealer. We install, service, and repair Navien systems and use genuine manufacturer parts. Many homeowners value working with a local, independent team that handles installation and long-term care directly.
How often should a Navien tankless unit be descaled?
For most Triangle homes, annual descaling is a good rule of thumb because much of the area has hard water. Scale builds up inside the heat exchanger over time, and a yearly flush keeps the unit operating at its designed efficiency and helps extend its service life.
Can a Navien combi-boiler handle both heating and hot water for my home?
Yes. Navien NCB combi-boilers are designed to provide both space heating and domestic hot water from a single unit. We service and repair these systems, including the venting, gas, and water connections that keep them running reliably.
What does Navien's ComfortFlow recirculation do?
On Navien's Advanced (A2) tankless models, the ComfortFlow system pairs a built-in recirculation pump with a small buffer tank. This reduces the cold-water sandwich effect and shortens the wait for hot water at your fixtures. We can set up recirculation whether your model has it built in or needs an external solution.
Find Navien Service Near You
We offer Navien service throughout these communities
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