Tankless Water Heater Replacement

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ASI Plumbing provides Tankless Water Heater Replacement plumbing services in Louisville, KY and surrounding areas. We have established our reputation on building reliable and cost-effective solutions through our team of dedicated plumbers. We strive daily to satisfy our customers by providing full attention to your plumbing needs. Our team of qualified plumbers provide “Service, the way it should be!”

If your hot water seems to run out before you get done with the household chores or getting everyone a shower and bath then you might want to consider a Tankless water heater. Tankless water heaters are the most technically engineered water heaters for residential homes and the hot water never runs out. It's true that the hot water is continuous however since the water heater has no tank the water must pass through a set of coils (heat exchanger) that are heated as the water passes through them thus heating the water. Tankless water heaters only heat while there is a demand for hot water so the design itself is efficient because most of the time it's using no energy because there is no demand. These water heaters are also efficient in their compact design and can be hung on the wall to save floor space.


In Kentucky, the highest BTU for a residential water heater is 199,999 BTU's, anything larger is designated as a boiler and would have many other requirements under code. Other than unlimited hot water the other benefits of a gas tankless water heater are less maintenance and less gas usage since the device only runs when a hot water outlet is turned on, no more constantly heating a whole tank of water.


The only setback is, of course, they cost more than a tank-type water heater. Installation of a tankless gas water heater almost always requires running sections of new water, gas, and vent piping to the unit, since its shape and location are different than a tank type. When Switching over to a tankless water heater you can expect an installation to take the better part of an entire day.


Just like all water heaters, tankless water heaters are recommended to be flushed annually. Tankless water heaters do have longer warranty periods and are highly recommended by ASI Plumbing.

Our licensed and insured plumbing specialists are highly trained in using state of the art diagnostic equipment to diagnose your Tankless Water Heater Replacement issues. Call us today at 502-271-1331, Schedule Online or Request an Estimate!

Estimate by Phone

Call Now

Estimate by Text

Text Now

Estimate by Form

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Estimate by Phone

Call Now

Estimate by Text

Text Now

Estimate by Form

Request Now

Recent ASI Customer Reviews

Keith and Jacob from ASI Plumbing did a fantastic job replacing my water heater! They arrived on time, came prepared with all the supplies they would need. They were respectful, polite and willing to tell me what they were doing and to answer my questions. (I’m the curious type.) They spread dropcloths, used shoe covers, and cleaned up the entire area before leaving. I would highly recommend ASI for your plumbing needs. Price was excellent and they responded immediately to my call for service. Thank you ASI Plumbing!

Mitzi Strasser

Nathan did a great job! He was very kind and knowledgeable

Melinda Calandrino

I highly recommend ASI Plumbing. Technician Kyle was prompt, polite and professional. He wore his boot covers and got the job done quickly and cleanly. Thank you Kyle and ASI.

Damon Hill

Thanks to Steven and Cody. Did a great job and helped with all my questions!

Drew Stevens

Nate B was very professional and friendly and explain what he was doing and fix my problem thank you very much

Steve Benningfield

Nate fixed the leak and replaced our kitchen faucet. He was very courteous. He cleaned up the work area, wore shoe covers and laid down a doormat and drop cloth.

Traci E

Aug 25

Excellent Service.

Tommy Hardin

Aug 25

Scheduling and communication with the company is excellent. My plumber, Jerry, was great. He fixed a LOT of little plumbing problems for me with ease and a great sense of humor. Highly recommend.

Mindy Johnson

Aug 25

Aaron and his apprentice were very friendly and professional. They explained what the problem was and how it needed to be repaired. They didn’t leave a mess either. As a single woman sometimes these kinds of services try to take advantage of my lack of knowledge but I never felt that with Aaron. Thank you for the excellent work and service!!

Tiphanie Tomsick


Keith and Jacob from ASI Plumbing did a fantastic job replacing my water heater! They arrived on time, came prepared with all the supplies they would need. They were respectful, polite and willing to tell me what they were doing and to answer my questions. (I’m the curious type.) They spread dropcloths, used shoe covers, and cleaned up the entire area before leaving. I would highly recommend ASI for your plumbing needs. Price was excellent and they responded immediately to my call for service. Thank you ASI Plumbing!

Mitzi Strasser

Nathan did a great job! He was very kind and knowledgeable

Melinda Calandrino

I highly recommend ASI Plumbing. Technician Kyle was prompt, polite and professional. He wore his boot covers and got the job done quickly and cleanly. Thank you Kyle and ASI.

Damon Hill

Thanks to Steven and Cody. Did a great job and helped with all my questions!

Drew Stevens

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502-271-1331