24/7 Tankless Water Heater Repair in Northern Virginia & Washington, D.C.

While tankless water heaters last longer and are far more efficient than their standard tank counterparts, these high-efficiency systems can still encounter issues such as mineral buildup, ignition failures, or inconsistent water temperatures. When these problems arise, timely and professional repair is essential to regain optimal performance and energy efficiency.

At United Air Temp, our team is proud to offer fast, effective tankless water heater repairs NOVA and DC residents trust to keep their systems working properly. Offering 24/7 emergency tankless water heater repairs and a commitment to quality craftsmanship, you can rest assured that you’ll always receive the prompt, professional solutions you seek to restore total functionality in no time.

Request same-day tankless water heater repair by calling UAT today!

Signs You Need Tankless Water Heater Repair

It’s important to promptly address tankless water heater failures to prevent excess damage to your plumbing. Signs you need tankless water heater repair include:

  • Fluctuating water temperatures: If your water temperature is inconsistent, it may indicate a broken flow sensor or dirty water filter.
  • Reduced hot water pressure: A noticeable decrease in hot water pressure is often caused by mineral buildup from hard water. You need water heater repair and potentially a water softener.
  • Strange noises: Unusual sounds such as clicking, banging, or rumbling coming from your tankless water heater can be a sign of a faulty pressure valve, dirty flow sensor, or inadequate ventilation.
  • Error codes on display: Modern tankless water heaters often have a display panel that shows error codes when something is wrong. If you see these messages, it’s time to contact a professional.
  • Leaks: You may not have to worry about tank leaks, but valves, connections, and piping can still leak. Act quickly to minimize water damage.
Request Service Get started by filling out a service request form or by giving us a call.

Tankless Water Heater Repair vs. Replacement

While we always strive to provide the most cost-effective repair solution, in some cases, a tankless water heater repair may not be sufficient to restore your system’s functionality.

Our team will carefully assess your unit to determine whether repair or replacement is the better option. In general, we may recommend tankless water heater replacement instead of repair when:

  • Your unit is older than 15 years old.
  • You need frequent or recurrent tankless water heater repairs.
  • Your system is undersized and can’t provide enough hot water.
  • The cost to repair your system is 50% or more than the cost to replace it.

Book Tankless Water Heater Repair in NOVA & DC Metro

Since 1931, United Air Temp has been the go-to source for reliable plumbing services throughout the DC area and beyond.

With same-day service, 24/7 emergency repair availability and a team of highly trained plumbers who complete over 40 hours of training each year, you can count on us to deliver prompt, professional solutions that last.

We guarantee your satisfaction with upfront pricing, quality craftsmanship, and transparent communication.

Call United Air Temp today to book tankless water heater repair in Northern Virginia or Washington, D.C.

Frequently Asked Questions

Your tankless water heater may not produce enough hot water due to an undersized unit, using too many appliances and fixtures at once, or issues such as clogged filters or mineral buildup.

Error codes on your tankless water heater indicate specific issues, such as ignition failure, blocked air supply or exhaust, or problems with the water flow. They help diagnose and troubleshoot the problem.

A good flow rate for a tankless water heater typically ranges from 5 to 10 gallons per minute (GPM), depending on household size and hot water usage patterns.

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Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

Mike S

I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done.

Carolyn M.

United Air Temps recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable.

Devin C.

Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided.

Brenda M.

I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time.

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Trained Technicians
Upfront Pricing
Environmental Health & Safety
Value-Added Services
On-Time Scheduling
Commitment to Community
Quality Craftsmanship
Satisfaction Guaranteed
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What Our Clients Are Saying
testimonial_image "I appreciate the service, care, and timely manner put into the service I needed to have done. Although I had a tough job to complete these guys worked together and got the job done."
testimonial_image "United Air Temp recently serviced my heating units and has serviced my AC units regularly for a few years. The prices are so reasonable."
testimonial_image "Our water heater broke down and Edson had it replaced in less than 24hrs. We had a subsequent HVAC issue and he sent a tech to repair it minutes after I submitted the request. We are so grateful for the services UAT has provided."
testimonial_image "I have been a United Air Temp customer for ten years and they never fail to give me prompt, reliable, HONEST service. Friendly, knowledgeable, and mindful of my time."

United Air Temp was named the 2022 HVACR National Contractor of the Year.

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