Tankless Water Heater Repair in Metro Atlanta, GA
We provide tankless water heater repair in Metro Atlanta, GA, helping homeowners restore hot water quickly with efficient and reliable service.
When your tankless water heater needs repair, you need a team of experienced professionals who can provide a fast, reliable, and professional service. At Plumbing Express, we are Greater Metro Atlanta’s premier tankless water heater repair specialists. Our factory-trained technicians have the expertise to repair all makes and models of tankless water heaters, ensuring that your home’s hot water supply is restored as quickly as possible. With over 35 years of experience, our licensed and certified plumbers can diagnose and repair any tankless water heater problem, from minor issues to major malfunctions.

Why Choose Plumbing Express for Your Tankless Water Heater Repair?
Plumbing Express is a Rinnai ACE Dealer, meaning we have earned the highest status as a team that is factory-trained by Rinnai to fix malfunctioning tankless units and problematic installations of all makes and models. Whether it’s an ignition failure, temperature fluctuation, or a unit throwing error codes, we have the specialized tools, diagnostic software, and technical know-how to pinpoint the issue and get your hot water flowing fast.
Factory-Trained Technicians for All Makes and Models
We don’t just work on tankless systems, we’re trained and authorized by the leading brand in the industry, Rinnai. That means repairs done right the first time, with access to parts and support you won’t find everywhere.
Advanced Diagnostics and Specialized Tools
We have exclusive access to specialized tools and technical resources that allow us to diagnose and repair tankless water heaters quickly and accurately. Our advanced diagnostic capabilities allow us to identify the root cause of the problem and make the necessary repairs to get your hot water flowing again.
Extended Warranty Authorization
As an exclusive Rinnai Ace Dealer we have the ability to offer enhanced warranty protection on our repairs. This means that you can have peace of mind knowing that your tankless water heater is covered in the event of a future problem.
Over 35 Years of Local Experience
We have been serving the Metro Atlanta area for over 35 years, and we have a deep understanding of the unique challenges of the region’s plumbing systems. We have repaired thousands of tankless water heaters in Georgia homes, and we have the experience to get the job done right the first time.
Our Comprehensive Tankless Water Heater Repair Services
We offer a full range of tankless water heater repair services to meet the needs of our customers. Our services are designed to be fast, effective, and affordable.
No Hot Water
If you have no hot water, it could be due to a number of issues, including a faulty ignition system, a broken thermostat, or a tripped circuit breaker. We will diagnose the problem and make the necessary repairs to get your hot water flowing again.
Fluctuating Water Temperature
If you are experiencing fluctuating water temperatures, it could be a sign of a problem with the flow sensor or the mixing valve. We will inspect your tankless water heater to determine the cause of the problem and make the necessary repairs.
Strange Noises
If you are hearing strange noises coming from your tankless water heater, it could be a sign of sediment buildup in the heat exchanger. Sediment buildup can reduce the efficiency of your tankless water heater and can also lead to more serious problems. We will flush the heat exchanger to remove the sediment and restore your tankless water heater to proper working order.
Error Codes
If you are seeing an error code on your tankless water heater’s display, it is important to have it checked out by a professional. We have the knowledge and experience to diagnose and repair any error code that your tankless water heater may be displaying.
What Atlanta Homeowners Say About Plumbing Express
Our 4.9-star rating comes from 2,000+ Google reviews written by real homeowners across Metro Atlanta. Here is what a few of them had to say.
Read more reviews on Google or visit our customer reviews page to see why Atlanta homeowners choose Plumbing Express.
Service couldn’t be completed due to needing a new system. We appreciate the very informative visit as well as insight that could help after a new unit install.
Plumbing Express was great. I had a failed sump pump that had partially overflowed into the basement. Nasty. Josh was the tech that did the work. He was efficient, neat and courteous. I will use Plumbing Express if I have any other plumbing needs and I will recommend them to my family and friends.
The technician was very knowledgeable and professional. I believe they did a very good job.
Ron was our second plumber from this company. The first plumber came, examined pipes and said he found no leak, even though we had experiences a large amount of water leaking from the ceiling in the finished basement. Several days later we had another leak-same area but less water the second time. Ron came in, listened to our frustration and did a more thorough inspection of the pipes and identified the problem. He was very personable and professional. On his third visit, we had several replacement pipes installed and are without leaks again. Our frustration, with the situation, was my son had used your company to replace pipes when he purchased the home and founding out not all the pipes were included with that process.
Tim arrived on time and was very professional. He took his time to explain the problem and the process it would take fix the water line.
Called Plumbing Express as tankless hot water not operating. Their website states "Get Free Plumbing Quote ". When service man showed up an looked at unit he said there would be a $207 charge to look into unit in order to give me a quote to fix unit. Due to not having hot water and time required to get another company to address the problem I agreed to pay $207 for quote. After looking in unit I was told he would not be able to fix due to age of unit and parts not available. I think he should have said parts not available when seeing model number on front of unit and I would not have wasted $207.
Outstanding customer service, we will definitely be using them in the future for any plumbing needs. Can’t thank them enough!
Extremely knowledgeable and very helpful. The team was excellent. The job was completed in 1 day with a great team. Very expressive.
Daniel Perez was great in coming out to check the problem I had with a water leak from my air conditioner line. His recommendation was correct.
Great and informative service while I was in a bind without a functioning water heater.
Plumbing Express is my go-to plumbing support team. They have fair pricing, well-vetted technicians, and a truly exceptional scheduling system. Rod, my technician, was the best. He quickly assessed the problem and gave a fair estimate, working hard to keep to the schedule. He even brought Josh along on the day of service, and the two of them worked well together. They addressed the bathtub drain repair with expertise and caused the least sheetrock damage. It was difficult to replace the broken pipe and get to the upstairs drain, but together they made it a success.
Daniel did a great job and was very professional during his service call last week!
Rod and Josh did an awesome job taking care of my clogged sinks. Knowledgable, professional and great to work with - I really appreciated their help today and would highly recommend them and Plumbing Express!
Daniel was excellent. The work he did was simply superb. I highly recommend your company and hopefully Daniel will get more and more work
Dylan from Plumbing Express came over and replaced our garbage disposal for us. It was older, had a massive leak, and needed to be replaced. He did a great job and was in and out in about 30 minutes! I also asked him to check out a potential leak I had been hearing in my ceiling. He used a thermal camera to investigate and was very honest and upfront about what he found. Rather than immediately cutting into the drywall to confirm something uncertain, he explained that the sound could simply be pipes expanding and that opening the wall might be unnecessary. He recommended monitoring the area and waiting to see if a wet spot appears, which would clearly indicate an actual leak. I really appreciated that he didn’t try to upsell or push unnecessary work. Overall, great service and a great guy. They will definitely be our go-to plumbing service from now on.
Once again we had some problems under our kitchen sink so we called Plumbing Express who were able to get us on their schedule pretty quickly after these storms Tim Robinson came out to do the job. Tim has been to our house for a number of different plumbing problems. He is personable & professional. As usual he did a great job even though this particular problem turned out to be far more difficult than anyone had expected. As frustrating as it was, Tim worked through it until he finished the job. We can't thank him enough.
Anthony was very competent, professional and friendly. He answered all my questions throughly. Highly recommend!
Frequently Asked Questions (FAQs) About Tankless Water Heater Repair
How much does it cost to repair a tankless water heater?
The cost of a tankless water heater repair can vary depending on the type of water heater and the extent of the damage. We provide detailed, upfront estimates for all our projects.
Should I repair or replace my tankless water heater?
If your tankless water heater is old, outdated, or has multiple problems, it may be more cost-effective to replace it. We can help you determine whether it is better to repair or replace your water heater.
How long does a tankless water heater repair take?
Most tankless water heater repairs can be completed in just a few hours. We will work with you to schedule the repair at a time that is convenient for you.
Do you offer a warranty on your tankless water heater repairs?
Yes, we offer a warranty on all our tankless water heater repairs. We stand behind our work and we are committed to your satisfaction.
What are the signs that my tankless water heater needs repair?
Signs that your tankless water heater may need repair include a lack of hot water, fluctuating water temperatures, strange noises coming from the unit, and error codes on the display.
Our Service Areas
Serving Metro Atlanta, North Georgia, and Surrounding Communities
Plumbing Express provides plumbing, repiping, water heater, and drain cleaning services to homeowners across Metro Atlanta and North Georgia. Our licensed plumbers know the plumbing systems in this region, from aging polybutylene pipes in 1980s subdivisions to clay sewer lines in older neighborhoods.
We serve the following counties and communities:
Don’t see your city listed? We likely serve your area too. Visit our full service area page or call (678) 439-9540 to confirm availability at your address.
Contact Our Metro Atlanta Tankless Water Heater Repair Experts
If you are in need of tankless water heater repair services in the Metro Atlanta area, don’t hesitate to contact the experts at Plumbing Express. We will provide you with fast, reliable, and affordable service. Call us at (678) 439-9540 to schedule a consultation.



