Open now · 6 AM - 10 PM
$25 OFF Your First Service
Kennesaw Appliance Repair is Marietta, GA’s trusted choice for Navien appliance repairs. With years of hands-on experience, factory training, and professional certifications, their skilled technicians deliver accurate diagnostics and dependable repairs you can count on. Kennesaw Appliance Repair is committed to fast, expert service that restores comfort and performance.
Don’t wait for small issues to become costly problems. Call Kennesaw Appliance Repair today at (770) 215-4158 for certified Navien repair service in Marietta, GA.
Same-day HVAC and appliance repairs to keep your home running smoothly.
Skilled Marietta technicians delivering honest, dependable local service
Trusted repairs and HVAC service for year-round comfort and peace of mind
Fast, reliable repairs and HVAC service when you need them most.
$25 OFF First Time Customers
Double Wall Oven Repair
Buld-in Microwave Repair
Kegerator Repair
Freezer Repair
Stackable Washer and Dryer Repair
Wine Cooler and Cellar Repair
Dryer repair
Oven & Stove repair
Washing Machine repair
Garbage Disposal repair
Refrigerator repair
Dishwasher repair
Water Heater repair
Furnace Repair
Termostat Repair
Air Conditioner Service
Our Navien water heater repair service in Marietta, GA 30068 helps homeowners restore reliable hot water quickly and efficiently. We diagnose ignition failures, temperature fluctuations, error codes, leaking components, low water pressure, and system shutdowns with careful attention to manufacturer standards and overall performance.
Technicians service both tankless and high-efficiency Navien units, handling heat exchanger issues, circulation problems, burner malfunctions, flushing needs, sensor faults, and venting concerns. Every repair visit is focused on improving safety, energy efficiency, and dependable operation for your home's hot water system.
If your unit is producing inconsistent hot water, making unusual noises, or showing signs of wear, our Marietta repair team provides prompt troubleshooting and clear repair solutions. The company works every day 6 AM - 10 PM, making it easier to schedule service when you need help most.
Customers in Marietta, GA 30068 can expect professional service, accurate diagnostics, and durable workmanship backed by our warranty: 90 Days Parts and Labor. We also offer $25 OFF First Time Customers for added value on your initial service appointment.
For fast scheduling and trusted local support, call (770) 215-4158 to book Navien water heater repair in Marietta, GA 30068. We are committed to resolving hot water issues with responsive service and quality results.
| Service / Repair Type | Typical Cost Range | Notes |
|---|---|---|
| Diagnostic / Service Call | $90–$180 | Often applied toward repair if work is approved. |
| Minor Repair | $150–$350 | Common for sensor resets, igniter issues, or simple part replacement. |
| Flow Sensor Replacement | $200–$400 | Typical for tankless Navien units with hot water flow detection problems. |
| Ignition / Flame Rod Repair | $180–$375 | Includes cleaning or replacing ignition-related components. |
| Pressure Relief Valve or Small Valve Repair | $150–$300 | Varies by accessibility and part type. |
| Gas Valve Replacement | $300–$650 | One of the more expensive common repairs. |
| Control Board Replacement | $400–$900 | Price depends heavily on model and part availability. |
| Heat Exchanger Repair / Major Internal Repair | $500–$1,200+ | At higher costs, replacement is sometimes considered instead. |
| Descaling / Flushing Maintenance | $120–$275 | Routine tankless maintenance commonly recommended annually. |
| After-Hours or Emergency Surcharge | +$75–$200 | May be added on nights, weekends, or holidays. |
Yes. We service most Navien tankless water heater models, including both residential and light commercial units. Whether your system is having ignition problems, inconsistent hot water, leaking, error codes, or reduced performance, our technicians can diagnose the issue and provide the proper repair.
Common warning signs include no hot water, fluctuating water temperature, unusual noises, visible leaks, low water pressure on hot water lines, and error messages on the display. If you notice any of these issues, it is best to schedule service before the problem becomes more serious or causes damage to the unit.
In many cases, yes. We strive to provide fast response times for customers in Marietta, GA 30068, especially when you are dealing with no hot water or an active leak. Appointment availability can vary, but we do our best to offer prompt and convenient scheduling.
Navien water heaters use error codes to alert you to specific problems such as ignition failure, venting issues, sensor malfunctions, flow problems, or overheating. Our technicians can identify what the code means, inspect the system thoroughly, and complete the necessary repair to restore safe operation.
Yes. Regular maintenance, including flushing and descaling, is important for Navien tankless water heaters, especially in areas where mineral buildup can affect efficiency and performance. Routine service can help extend the life of your unit, improve energy efficiency, and reduce the risk of unexpected breakdowns.
That depends on the age of the unit, the type of repair needed, and the overall condition of the system. If the issue is minor and the unit is in good shape, repair is often the most cost-effective choice. If the water heater has frequent problems or major component failure, we can help you compare repair versus replacement options honestly.
Yes. A leaking Navien water heater should be inspected as soon as possible because the source could range from loose connections and valves to internal component failure. We will locate the cause of the leak, explain the issue clearly, and recommend the appropriate repair to help prevent further water damage.
You can contact us to schedule an inspection and repair appointment at a time that works for you. We will listen to the symptoms you are experiencing, answer your questions, and send a qualified technician to diagnose and repair your Navien water heater as quickly as possible.
Kennesaw Appliance Repair
4781 Lower Roswell Rd, Marietta, GA 30068