Enjoy Unlimited Hot Water

A tankless water heater is truly an upgrade from a tank. Tankless delivers a limitless supply of hot water to your shower or fixture at a consistent temperature.


Latino woman in her 30s taking a hot shower in the bathroom of her home. Hot water from the shower to the hands


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Hot Water When You Need it.


shower with flowing water and steam




We believe Rinnai® Tankless is simply the best option on the market. As an exclusive dealer and servicer of Rinnai Tankless Water Heaters, Plumbing Express receives the highest level of Rinnai training at Rinnai Headquarters.

Call 678-439-9540 today for one of the best tankless installers in Atlanta. We will answer your general tankless questions and set up an appointment for your estimate. 


A Rinnai Tankless Water Heater solves the tank heater water inconsistency problem because hot water becomes delivered at a precise temperature to every fixture. Imagine providing unlimited hot water to your home.







Some More Rewards of Rinnai Tankless Ownership:

Energy Rebates
Longer Unit Life

To learn more about Rinnai tankless water heaters, call Plumbing Express at (770) 599-5985.

Tankless technology that saves you time.

Never think about your hot water needs again: Innovative technology provides an endless supply of hot water whenever and wherever it’s needed – even for simultaneous uses at multiple fixtures. Showers and baths? Absolutely. Laundry and dishes? No problem. Prioritizing activities and scheduling hot water use is a thing of the past.

Save money, splurge on performance.

Designed for efficiency: Rinnai’s tankless technology features copper heat exchangers to provide maximum efficiency and uses up to 40 percent less energy* than a traditional tank. Learn more about how Rinnai’s tankless water heaters work

Save energy: By operating only when hot water is needed, and no storage tank to heat and reheat water, our tankless technology helps save on energy and utility costs. The use of an electronic ignition means no standing pilot light that constantly uses energy.

A smart investment: Increase your home’s value with premium technology, increased energy efficiency, an improved Home Energy Rating System (HERS) Index Score and optimized LEED certification. Available energy efficiency rebates and tax credits offer the opportunity to help make your purchases more affordable.

Multiple sizes: Rinnai gives you options to right-size your installation and customize your efficiency.

Replace parts, not systems: Every part of a Rinnai Tankless Water Heater is replaceable. Components can be easily exchanged, if needed, versus replacing the entire system.


When you just need Tankless Water Heater Repair or Tankless Water Heater Service, we are authorized and able to provide that as well.

One of our friendly plumbers will be glad to get you back on track.

For On-Site Quotes, Call 678-439-9540
Financing Options with Approved Credit

Rinnai® is the registered trademark of Rinnai Corporation used under license by Rinnai America Corporation. All Rights Reserved.

Tankless Water Heater FAQs

  • What is a tankless water heater?

    Tankless water heaters produce hot water on demand rather than maintaining a store of hot water in a tank. When a faucet or fixture is turned on, the Rinnai tankless unit senses the water flow and heads water to the pre-programmed temperature.

  • Why Rinnai?

    Rinnai is the market leading tankless water heater. Plumbing Express exclusively installs Rinnai because we believe they are the best.

  • Can a tankless water heater produce enough hot water for my home?

    Yes. No matter how large your home, we can configure a tankless system to meet your needs. Rinnai systems can meet the needs of every thing from a tiny house to a mansion.

  • Can I change the hot water temperature on my Rinnai?

    Yes. Rinnai tankless units can be controlled on the unit or by using a wifi mobile application.

  • Why choose Plumbing Express?

    Plumbing Express has the highest level of Rinnai dealer status and receives training at the Rinnai Headquarters in Peachtree City, GA. We provide quality service at a fair price.

  • How do I get a quote?

    Call us anytime for a quote. Our office staff can answer the basic tankless questions and schedule a quote.

Whole-House Repipe

We eliminate failing pipes and include sheetrock repair

General Plumbing

Residential and Commercial Plumbing Services for Metro Atlanta and North Georgia.

Water Heating Services

Repair or upgrade your water heating system.

Drain Repair

We know that critical drain services protect property & health. Get flowing again.

What People Have to Say

“Overall, our interactions with Plumbing Express were professional, courteous and timely. Will definitely use again!”

Patrick R., Decatur, GA

I had all of the old pipes in my 18-year-old home removed and replaced. Plumbing Express did an exceptional job on the interior work. They matched all of the tile and grout, cleaned the site, and made it impossible to tell they had even been there…

Testimonial 2

We had just moved here and needed all of our piping changed to PVC, so we took their advice and recommendations. After hearing from our neighbors, we figured they would do a good job. They ended up doing an excellent job!

Testimonial 3

Plumbing Express was punctual, got the work done in a very tight time frame, and the quality was good. The employees were very courteous, on time, and very professional.

Testimonial 4

This team is professional, thorough, and friendly. The interior of our home looks great. There is no trace of work being done… I actually think it looks better than it did before the job! The patching and paint work are impeccable.

Testimonial 5