Plumbing repair for homes across Nashville and Middle TennesseePlumbing repair around Nashville, TN
Stop The Drip
Tankless water heater installed in a small utility room, tankless water heater installation
Our Services

Tankless Water Heater Installation in Nashville, TN

Tankless Water Heaters · Nashville, TN

Hot water on demand for Middle Tennessee homes

A tankless water heater heats water on demand as it flows through the unit. It hangs on a wall in place of a tank on the floor. Stop The Drip handles tankless water heater installation and repair in homes across Nashville and Middle Tennessee. Call or text (615) 723-2488, and we look at the job and put the quote in writing.

A switch from a gas tank means new work on the gas line and the vent. If a standard tank suits your home better, our tank water heater installation page covers it. We are a plumber serving Nashville, and La Vergne sits at the center of our service area. Homes are our focus, and we have done commercial tankless work too.

What We Handle

  • Tankless water heater installation in homes across Nashville and Middle Tennessee
  • Switching a tank water heater over to a tankless unit
  • Replacing an older tankless unit that has failed
  • Sizing by the fixtures you run at once and the people in your house
  • Gas line sizing, with a larger line run when the old one falls short
  • Venting to the outside, plus a condensate drain for condensing models
  • Tankless water heater repair for error codes and lukewarm water
  • Descaling flushes through isolation valves to clear hard water scale

Request a Tankless Water Heaters Quote

Tell us about the clog, leak, water heater or fixture and where it is. We look at the job and put the quote in writing.

What Does Switching From a Tank to Tankless Take?

A gas tankless unit burns a lot of gas while the hot water runs. Tankless manuals say the gas line must carry that full load while every other gas appliance runs too. If the line that fed your old tank falls short, we run a larger one. It is the same gas line installation work we do for ranges and dryers.

An indoor tankless unit vents straight outside, and condensing models use plastic vent pipe. The manual for one condensing unit forbids tying its vent into an existing vent or chimney. Condensing models also make an acidic condensate that has to run to a drain. Where code calls for it, a neutralizer treats it first.

Homes without gas can use an electric tankless unit instead. A whole-house electric model draws heavy current, so an electrician checks the panel first.

Sizing a Tankless Water Heater for Your Household

A tank stores hot water, while a tankless unit makes it as you use it. That makes flow the first number. We add up what can run at the same time, like two showers and the kitchen sink.

The second number is temperature rise, the gap between the water coming in and the water you want. Metro Water Services' latest water quality report shows water leaving its plants between about 47 and 84 degrees. Winter water needs the bigger rise, so we size for the cold end.

A large home that runs several showers at once may need two units linked together. A unit too small for the demand falls behind when many taps run at once. We look at your fixtures and your water before we pick a size.

Tankless Water Heater Repair and Descaling Around Nashville

Hard water leaves scale inside the heat exchanger, which cuts output and can trip an overheat code. Metro Water Services calls Nashville's water moderately hard. The hardness is dissolved calcium from limestone, and treatment does not remove it. So a tankless unit here needs regular flushes.

A descaling flush clears the scale. We close the isolation valves and pump a descaling solution through the heat exchanger for an hour. Then we rinse it out and clean the inlet filter. Tankless manuals call for those isolation valves at the unit for this reason.

Tankless water heater repair starts with the code on the display and what the water does. Cold water at a slow trickle can mean the flow is too low to fire the burner. For a tank heater, our water heater repair page is the place to start.

Three tankless water heaters with copper and gas piping, tankless water heater installation Tankless water heater with PVC vent pipes in a storage closet, tankless water heaters

Ready to get started?

Call or text for a written quote. We work about 30 miles around La Vergne across Nashville and Middle Tennessee.

(615) 723-2488
How We Work

How a Job With Stop The Drip Runs

From the first call or text to the finished work, here is how it goes.

1

Call or Text

Call or text (615) 723-2488, or send the form. Tell us what is wrong and where the home is.

2

We Set a Time

We book a visit, and a plumber comes to the house to see the problem.

3

A Written Quote

We find the cause and show you what we found. Then the quote goes to you in writing.

4

The Repair

Once you approve the quote, we do the work, whether it is a new faucet or a sewer line repair.

5

Tested With You

We run the water and check the repair with you. You see the finished work before we pack up.

FAQ

Tankless Water Heaters Questions, Answered

Common questions about tankless water heaters around Nashville and the rest of Middle Tennessee. If yours is not here, call or text and ask.

Call (615) 723-2488

How much does tankless water heater installation cost?
The size of the unit sets part of the price. Gas line work and the vent route add to it, and so does a condensate drain. Moving the heater to a new spot changes it too. We look at the job and put the quote in writing, so call or text (615) 723-2488.
Does a tankless water heater work when the power goes out?
A gas tankless unit needs electric power for its controls and igniter, so it stops when the power does. Its freeze protection runs on that same power. NOAA normals for the Nashville airport show about 66 nights a year at or below freezing. If the power fails on one of those nights, the maker's manual says to drain the unit.
How often does a tankless water heater need descaling?
It depends on your water and the unit. At the hardness Metro Water Services reports, one maker's chart calls for a flush once a year. Some units flash a code when scale starts to build. Another maker calls for a yearly inspection by a trained professional.
Can a tankless water heater go where my old tank was?
It can, as long as a vent can reach the outside from that spot within the maker's limits. If it cannot, we can move the water heater to a better spot. Outdoor models are another option, mounted on an outside wall.
Why is my tankless water heater not getting hot?
Scale in the heat exchanger is one cause, and a descaling flush clears it. A gas line too small for the unit can starve it when other gas appliances run. A trickle below the unit's minimum flow will not fire the burner. We check the code on the display first, then work through the rest.
Does a tankless water heater need a permit in Nashville?
Metro Codes says a plain swap of a residential 50-gallon water heater generally needs no permit. A change of fuel type does need one. A tankless switch may add gas piping or move the heater, so Metro Codes answers that for your job. In other towns, the city or county codes office answers it.
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Why Choose Stop The Drip

Plumbing Service and Repair Around Nashville

The Quote in Writing

We look at the job before we price it. The quote comes to you in writing, and the work starts when you say yes.

The Problem Explained

We show you what failed and explain the repair in plain words. You decide with the facts in front of you.

Around Nashville and La Vergne

Our service area reaches about 30 miles around La Vergne. That puts Nashville, Murfreesboro, Franklin, Lebanon and Gallatin in range.

Homes and Rentals

Homeowners come first, and we also work for landlords and property managers. Businesses that need a plumber can call or text us too.

Google Reviews

Rated 5.0 on Google Around Nashville

Real reviews from real jobs, 74 reviews on Google.

Read All Reviews

I had a great experience with Stop the Drip! Freddy was professional, friendly, and went above and beyond to make sure everything was taken care of. He was honest, knowledgeable, and made the entire process easy and stress-free. You can tell he genuinely cares about his customers and the quality of his work. I highly recommend Stop the Drip to anyone looking for reliable, professional service. Freddy and his team definitely deserve 5 stars!

Keno Hassana week ago · Google review

they are awesome! They came out quickly both times I called and were honest and fair in their pricing. Will use them for all future plumbing. Highly recommend

Michaela Gettingsa month ago · Google review

Called the business and was able to get a same day appointment for my clogged kitchen drain and broken garbage disposal. They replaced the garbage disposal and did a hydro jetting. Throughout the process Freddie was very professional, friendly, and informative.He let me know all the steps of the process, gave options and his recommendations. At the end of the day, everything is fixed and he performed multiple tests to verify their work. Overall satisfied with this company .

Guides and Resources

Tankless Water Heaters Guides

Request a Quote

Get In Touch With Stop The Drip

Send the form with a few words about the problem, and we will reach out to set a time. You can also call or text (615) 723-2488.

  • Call or text (615) 723-2488
  • Serving Nashville, La Vergne and Middle Tennessee
  • Written quotes · drains, water heaters, leaks and gas lines

Request a Quote

Tell us about the clog, leak, water heater or fixture and where it is. We look at the job and put the quote in writing.

Call (615) 723-2488