Tankless Water Heater Repair in Lexington, NE
For dependable tankless water heater repair in Lexington, NE, FKV Plumbing provides fast and effective solutions to restore your endless hot water supply.
- Fast Tankless Heater Repair
- Condensing Unit Specialists
- Licensed Technicians
- All Major Tankless Brands
Need Tankless Water Heater Repair in Lexington, NE?
We descale, test and repair tankless units using manufacturer diagnostic steps.
Tankless Water Heater Repair in Lexington, NE for Every Major Brand
When your tankless unit isn't delivering hot water, FKV Plumbing is here to help residents in Lexington, NE. Our skilled technicians quickly identify the root cause of the malfunction, so your tankless water heater is repaired correctly and your continuous hot water supply is restored.
Our expertise includes:
- Heat exchanger descaling with circulation pump and service valves
- Flushing and descaling tankless heaters
- Replacing heat exchangers and ignitors

Additional Plumbing Repair Services in Lexington, NE
We offer expert plumbing repair services across Lexington, NE to stop leaks, clear blockages, and keep every fixture working the way it should.

Customers
Why Choose FKV Plumbing for Tankless Water Heater Repair in Lexington, NE?
We are focused on providing clear communication, honest assessments and effective repairs every time.
- Certified Pros, Our plumbers are brand-trained and certified to work on all major tankless water heater brands, providing precise diagnostics and repairs.
- Advanced Tools, We use dedicated diagnostic tools and equipment to accurately pinpoint problems within your tankless system, avoiding guesswork.
- Scale Experts, We descale thoroughly and recommend softening or scale filters suited to your water.
Citywide Coverage
From downtown to the surrounding suburbs of Lexington, FKV Plumbing ensures complete coverage for all your tankless water heater repair needs. We make it our priority to reach you quickly, minimizing the inconvenience of a malfunctioning unit.
Experienced Team
Each technician at FKV Plumbing is highly experienced in the inner workings of tankless water heaters, from gas and electrical components to flow sensors and heat exchangers. You can trust our team to deliver accurate diagnoses and reliable repair solutions for your unit.
Safety-First Approach
Condensing units produce acidic condensate, so we make sure it drains properly and is neutralized where required. All repairs are tested for leaks and safe operation before we leave.
Trusted Certified Lexington Plumbing Services Professionals
At FKV Plumbing, we take pride in providing certified plumbing services throughout Lexington, NE. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver long-lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationReliable Tankless Water Heater Repair Services in Lexington, NE
Rinnai Tankless Water Heater Repair in Lexington, NE
Rinnai is a popular tankless brand, and its units can face challenges such as scaling from hard water or issues with their flame rod. Our technicians in Lexington, NE are skilled at Rinnai tankless water heater repair, focusing on descaling services, fan motor replacements and resolving issues with gas valve assemblies. We ensure your Rinnai system continues to provide reliable, on-demand hot water, following manufacturer specifications.

Recirculation Pump Repair in Lexington
Many tankless systems use internal or external recirculation to deliver hot water more quickly. Pump failures, check valve problems or wrong schedule settings can cause long waits or lukewarm water. We test the pump, check valves and controls and set the schedule to match your routine. A properly tuned system saves both water and gas.
Tankless Descaling and Flushing in Lexington
Hard water leaves calcium and magnesium scale inside the heat exchanger, restricting flow and causing overheating. Many units warn of this with scale codes, such as the LC code on Rinnai models. We connect a circulation pump to the service valves and run a descaling solution through the exchanger. Annual descaling is a smart move for most homes on hard water.
Navien Tankless Water Heater Repair in Lexington
Navien units are known for their advanced condensing technology but can sometimes experience issues with their circulation pump or exhaust systems. FKV Plumbing provides dedicated Navien tankless water heater repair in Lexington, addressing common problems like ignition failures or condensate drain blockages. Our team is familiar with Navien's parts and troubleshooting protocols, ensuring a precise and effective repair that maintains your unit's high efficiency.
Emergency Tankless Water Heater Repair in Lexington, NE
A sudden loss of hot water can be an emergency, especially on a cold morning in Lexington, NE. FKV Plumbing offers emergency tankless water heater repair to address critical failures promptly. We are available to troubleshoot issues like major leaks, complete system shutdowns or repeat error codes that prevent any hot water production. Our rapid response team works quickly to restore your hot water, often on the same day.
No Hot Water Tankless Repair in Lexington
When your tankless unit fails to produce hot water, it is often due to issues with the ignition, gas supply or a clogged heat exchanger. Our technicians in Lexington will thoroughly diagnose the root cause, whether it is a faulty igniter, a pressure sensor fault or mineral buildup. We carry common replacement parts for quick fixes, restoring your continuous hot water supply efficiently. We also check for proper venting, which is essential for the safe operation of your unit.
Flow Sensor and Thermistor Repair in Lexington
Tankless heaters rely on flow sensors to start and thermistors to regulate temperature. A dirty inlet filter or failed sensor causes no hot water, fluctuating temperature or the unit turning off mid-shower. We clean filters, test sensor readings and replace faulty parts. Temperature becomes steady again once readings are correct.

Commercial Tankless Water Heater Repair in Lexington
Commercial tankless water heaters in Lexington face heavier usage and require robust repair solutions. Whether it is for a restaurant, hotel or office building, we understand the importance of maintaining hot water availability. Our commercial tankless water heater repair services address larger capacity units, complex manifold systems and often more serious scaling issues. We focus on fast, efficient service to minimize disruption to your business operations.
Tankless Water Heater Repair Near Me in Lexington, NE
Most water in Nebraska comes from groundwater and tends to be hard, so scale builds up in water heaters and fixtures over time. Our team knows how scale affects each brand and how to prevent it. That knowledge helps your unit reach its full lifespan.
If you are searching for 'tankless water heater repair near me' in Lexington, NE, FKV Plumbing is your local solution. Our experienced plumbers are familiar with the plumbing infrastructure and common water heater issues homeowners face in this area. We are always ready to provide fast and professional service.
FKV Plumbing at a Glance
- Fully licensed plumbing team covering Lexington, NE
- 24/7 emergency service with same-day scheduling
- Clear written estimates, no hidden fees
- 4.8-star rated by 799+ Nebraska customers
Lexington Map
Lexington Information
- Population
- 10,816
- Area codes
- Local
- Service area
- Lexington and communities within 40 miles
- Nearby
- Kearney, North Platte, Hastings, Grand Island
Most water in Nebraska comes from groundwater and tends to be hard, so scale builds up in water heaters and faucets over time. Tankless heaters scale up when water is hard, so expert repair and regular descaling are what keep these efficient units running for their full lifespan.
Expert Services
Trust our professionals for reliable FKV Plumbing solutions in Lexington, NE.
Our Specialized Plumbing Services in Lexington, NE
At FKV Plumbing, we provide a complete range of plumbing services across Lexington, NE. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Tankless Water Heater Repair Process Works in Lexington, NE
From first contact to final repair, we provide a smooth and professional experience for every tankless water heater repair in Lexington, NE.
Request a Quote
Contact us at (402) 258-1639 to describe your tankless water heater issue. We will schedule a good time for a technician to visit your Lexington home and provide an upfront quote.
Diagnosis
Our skilled technician arrives on time, performs a thorough diagnostic check of your tankless unit and explains the problem in plain language.
Expert Repair
We complete the necessary repairs using quality parts, making sure your tankless water heater is functioning correctly and safely before we leave.
Frequently Asked Questions About Tankless Water Heater Repair in Lexington
The cost of tankless water heater repair in Lexington varies a lot depending on the issue, ranging from $150 for minor fixes like sensor replacement to $600 or more for complex repairs involving heat exchanger descaling or major component replacements. We provide a detailed estimate after diagnosing the specific problem.
Most repairs and descaling are done in one to three hours. If a part must be ordered, we typically return within a few business days.
With regular descaling, tankless heaters often last 15 to 20 years. Without maintenance in hard water, problems can start within a few years.
Yes, our technicians are trained and experienced in repairing all major tankless water heater brands, including Rinnai, Navien, Noritz, Rheem, Bosch, A.O. Smith and more. We carry a wide selection of common parts for various models.
In homes with hard water and no softener, once a year is a good rule. Homes with a softener may go longer, but annual inspection is still wise.
Yes, FKV Plumbing stands behind its work. All our tankless water heater repairs come with a satisfaction guarantee and a warranty on both parts and labor. We will provide full warranty details with your repair estimate.
Frequent causes of failure include mineral buildup from hard water, ignition problems, faulty flow sensors, clogged air filters, exhaust venting issues and electrical component failures. Regular maintenance, including descaling, can prevent most of these problems.
Regular professional maintenance, including descaling and checking all connections, is the best defense. Installing a whole-home water softener can also greatly reduce mineral buildup in areas with very hard water.
What People Are Saying About Our Plumbing Experts?

James P.
Our commercial plumbing system had a leak under the sink, and FKV Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Hastings, NE
Patricia H.
We had a slab leak that two other companies could not find. FKV Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Kearney, NE
Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Columbus, NE
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Norfolk, NE
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Norfolk, NE
Mark T.
When our office needed drain cleaning, FKV Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Columbus, NE













