When it comes to Navien appliance repairs in Denver, CO, MileHigh Appliance Repair stands out with years of hands-on experience, factory training, and trusted certifications. Their skilled technicians deliver precise diagnostics and dependable repairs to keep your system running efficiently.
Choose MileHigh Appliance Repair for expert Navien service backed by proven knowledge and professionalism. Don’t wait for small issues to become major problems—call (720) 407-7762 today to schedule fast, reliable service.
Operate daily · 6 AM - 10 PM
Fast, expert appliance and HVAC repairs delivered the same day in Denver
Fast repairs for HVAC and appliances to restore comfort without delay
Quick repairs and tune-ups for HVAC systems and household appliances.
Certified local experts for fast, reliable appliance & HVAC repairs
$25 OFF First Time Customers
Oven & Stove repair
Wine Cooler and Cellar Repair
Dishwasher repair
Dryer repair
Garbage Disposal repair
Water Heater repair
Stackable Washer and Dryer Repair
Buld-in Microwave Repair
Double Wall Oven Repair
Refrigerator repair
Kegerator Repair
Washing Machine repair
Freezer Repair
Furnace Repair
Air Conditioner Service
Termostat Repair
Need expert Navien water heater repair in Denver, CO 80220? Our technicians diagnose and fix common and complex issues with Navien tankless and high-efficiency water heating systems, restoring dependable hot water for homes of all sizes. We handle ignition failures, error codes, temperature fluctuations, low water pressure concerns, leaks, recirculation problems, and unit shutdowns with careful troubleshooting and quality workmanship.
Our service covers complete Navien system diagnostics, burner and heat exchanger inspection, sensor testing, gas and water line checks, venting evaluation, control board assessment, and performance tuning. Whether your unit needs a fast component replacement, descaling, flushing, cleaning, or a detailed repair to improve efficiency, we focus on long-lasting results and safe operation.
Homeowners in 80220 choose our team for responsive scheduling, clear communication, and experienced repair solutions for residential hot water equipment. We work every day 6 AM - 10 PM, making it easier to get help when your system stops producing reliable hot water or starts showing signs of reduced performance.
We also help prevent future breakdowns by identifying wear, mineral buildup, airflow restrictions, and maintenance issues that can affect Navien equipment over time. If your water heater is making unusual noises, delivering inconsistent temperatures, or displaying warning indicators, we provide targeted repairs backed by our warranty: 90 Days Parts and Labor.
For added value, we currently offer $25 OFF First Time Customers. To schedule professional service for your Navien unit in Denver, call (720) 407-7762 and get trusted repair support designed to restore comfort, efficiency, and dependable hot water as quickly as possible.
Yes. We service many Navien tankless and combi water heater models, including common residential systems found in Denver homes. If you have the model number available, we can confirm compatibility and help schedule the right repair visit.
Common warning signs include inconsistent hot water, unit error codes, leaking, unusual noises, reduced water pressure, ignition problems, or the system shutting off unexpectedly. If you notice any of these issues, it is best to have the unit inspected before the problem gets worse.
We work to provide fast scheduling for customers in Denver, including the 80220 area, and same-day service may be available depending on technician availability and the time of your request. Contact us as early as possible for the best appointment options.
Yes. Our technicians can troubleshoot Navien error codes and identify the underlying cause, whether it involves ignition, venting, flow sensors, heat exchangers, circulation issues, or other system components. After diagnosis, we explain the recommended repair clearly before work begins.
That depends on the age of the unit, the cost of the repair, the frequency of past problems, and the overall condition of the system. We evaluate your Navien water heater and provide honest recommendations so you can decide whether a repair makes sense or if replacement would be more cost-effective.
Yes. Routine maintenance can help extend the life of your Navien system, improve efficiency, and reduce the risk of breakdowns. Maintenance often includes flushing the unit, checking for scale buildup, inspecting connections, testing components, and making sure the system is operating safely.
If your unit is leaking or you suddenly have no hot water, turn off the system if it is safe to do so and contact a qualified repair professional right away. Avoid trying to disassemble the unit yourself, since Navien systems contain gas, water, and electrical components that require proper handling.
| Service | Typical Cost Range | Notes |
|---|---|---|
| Diagnostic / Service Call | $90–$180 | Common initial visit fee in Denver; sometimes applied toward repair |
| Igniter Replacement | $180–$350 | Includes part and labor for many Navien tankless units |
| Flame Rod / Sensor Cleaning or Replacement | $140–$320 | Lower end for cleaning, higher end if replacement is needed |
| Flow Sensor Replacement | $220–$450 | Common repair for inconsistent hot water issues |
| Pressure Relief Valve Replacement | $180–$380 | Varies by accessibility and valve type |
| Gas Valve Replacement | $350–$750 | Higher-cost repair due to part pricing and safety-related labor |
| PCB / Control Board Replacement | $450–$950 | One of the more expensive Navien repairs |
| Circulation Pump Replacement | $350–$800 | Typical for Navien combi or recirculation-equipped systems |
| Heat Exchanger Repair / Related Major Repair | $500–$1,200 | May approach replacement cost depending on unit age and warranty status |
| Condensate Trap / Drain Service | $150–$300 | Typical for clog clearing or minor component service |
| Tankless Descaling / Annual Maintenance | $150–$300 | Routine maintenance often recommended yearly in Denver-area hard water conditions |
| After-Hours / Emergency Surcharge | $75–$200+ | Often added on nights, weekends, or holidays |
MileHigh Appliance Repair
3899 E Colfax Ave, Denver, CO 80220
