Navien Tankless Water Heater Price & Installation

Want endless hot water, lower energy waste, and a space-saving upgrade? Navien tankless water heaters heat water on demand—so you’re not paying to keep a big tank of water hot 24/7. GSHA Services, LTD installs and services Navien tankless systems for reliable comfort, clean workmanship, and upfront pricing.

🔥 Get a Free Navien Tankless Water Heater Estimate

Upgrade to endless hot water today. Schedule Your Free Estimate or call (224) 220-3660.

Average Navien Tankless Water Heater Cost (Installed)

Most Navien tankless water heater installations typically range from $3,900–$7,200 installed. Pricing depends on the model size (GPM demand), venting, gas line capacity, condensate drain, water quality needs, and whether the home already has the right hookups.

Typical Price Breakdown

  • Navien tankless unit: $1,300–$2,800
  • Professional installation labor: $1,200–$3,000
  • Venting / intake materials (as needed): $250–$1,200
  • Gas line upgrade (if required): $300–$1,500+
  • Condensate drain / neutralizer (condensing units): $150–$500

Good to Know

  • Replacing a tank with existing gas + vent nearby is usually less.
  • Long vent runs, tight mechanical rooms, or small gas lines can increase cost.
  • Recirculation options can add comfort (faster hot water) and influence pricing.

No-pressure, no-obligation estimates. We’ll inspect your current setup, confirm gas/venting requirements, and provide an exact price—before any work begins.

Why Switch to a Tankless Water Heater?

  • Endless hot water for showers, laundry, and dishes (when properly sized).
  • Higher efficiency vs. many older tank systems—less standby heat loss.
  • Space saving wall-mounted design frees up floor space.
  • Long service life when maintained (often longer than standard tanks).
  • Cleaner operation with modern condensing tech and sealed combustion.
  • Smart controls and optional Wi-Fi monitoring/adjustments.

Choosing the Right Navien Model

The best tankless water heater is the one that matches your home’s hot-water demand. During your free estimate, we’ll size your system based on fixtures, bathrooms, usage habits, incoming water temperature, and gas supply.

Navien NPE-A2 (Advanced Series)

Navien’s NPE-A2 models are built for maximum comfort. They feature ComfortFlow® technology designed to reduce the “cold water sandwich” and improve hot-water delivery with an internal buffer tank and recirculation pump.

  • ComfortFlow® internal recirculation pump + buffer tank
  • Fast hot water delivery options (great for longer plumbing runs)
  • Compatible with NaviLink® Wi-Fi control (add-on)
  • Excellent choice for comfort-focused households

Navien NPE-S2 (Standard Series)

The NPE-S2 series delivers ultra-high efficiency condensing performance with strong output and value—often with lower installation complexity for homes that don’t need built-in recirculation features.

  • High-efficiency condensing technology
  • Strong output for the price
  • Lower operating costs compared to many older tank systems
  • Great “best value” choice for many homes

Smart Control with NaviLink® (Optional)

Add the NaviLink® Wi-Fi module to control temperature, monitor system status, and manage recirculation features from your phone (compatible models/accessories may be required).

Navien Warranty Information

Navien offers a limited warranty that covers key components (including the heat exchanger, parts, and in some cases labor). Warranty terms vary by model and installation details. We’ll review warranty registration and what to expect during your estimate.

Navien Tankless Water Heater Repair & Replacement

If your home isn’t getting hot water like it used to—temperature swings, error codes, low flow, or lukewarm showers—it may be time for repair or replacement. Many traditional tank water heaters last around 8–12 years with proper maintenance, and tankless systems also require routine service to stay efficient and reliable.

Our Water Heater Brands — The Choice Is Yours

We install and service a wide selection of water heaters to match different homes, budgets, and performance goals.

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FAQ: Tankless Water Heaters

Will a tankless water heater run out of hot water?

It can if it’s undersized. Tankless systems provide continuous hot water up to their rated flow. Proper sizing based on your bathrooms and fixture usage is the key.

Do I need a bigger gas line?

Sometimes. Tankless units can require higher BTU input. We verify gas line sizing and regulator capacity during the estimate.

Do tankless water heaters need maintenance?

Yes—especially in areas with harder water. Annual flushing/inspection helps maintain efficiency, prevent scale buildup, and protect performance.

Get a Free, No-Obligation In-Home Estimate

We’ll inspect your current water heater, confirm gas/venting requirements, and size the right Navien system for your home. Schedule installation or request a free quote — fill out the form or call us at (224) 220-3660.


Maintenance Requirements & Warranties

To ensure optimal performance and longevity, have your equipment cleaned and inspected annually by GSHA Services, LTD Certified Technicians, per manufacturer guidelines. Failure to do so—along with misuse or neglect—may void warranties.
For HVAC equipment, the filter needs to be changed every 3–6 months.
⚠️ GSHA Services, LTD is not liable for damages caused by Acts of God or neglect.

👤 Customer Responsibility

It is the customer’s responsibility to follow these guidelines.

🛠️ Maintenance Agreements

We offer maintenance agreements to keep your equipment running smoothly and protect your investment.