Dayton Tankless Water Heater Services

Tankless Water Heater Services in Dayton and Surrounding Areas

Professional Installation, Repair & Replacement for Residential, Commercial, Industrial, and Municipal Clients

Upgrade your home or business with a high-efficiency tankless water heater. Unlike traditional models, tankless water heaters provide on-demand hot water, heating water only when needed—saving energy and reducing utility costs. Whether you’re looking to install, repair, or replace a tankless water heater, Atherton Plumbing has the expertise to help.

Call (937) 249-6144 today to schedule your tankless water heater service and start enjoying endless hot water.

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Why Choose a Tankless Water Heater?

Tankless water heaters offer several advantages over traditional storage-tank models, making them a smart investment for energy-conscious homeowners and businesses.

  • Energy Efficiency – Tankless units only heat water when needed, reducing energy consumption compared to traditional models that constantly maintain a reservoir of hot water.
  • Unlimited Hot Water Supply – No more running out of hot water during showers or dishwashing—tankless heaters provide continuous hot water on demand.
  • Space-Saving Design – Compact and wall-mounted, tankless water heaters free up valuable space compared to bulky storage tanks.
  • Longer Lifespan – While traditional water heaters last 6–10 years, tankless units can last 20+ years with proper maintenance.
  • Cleaner Water – Without a storage tank, there’s no risk of rust or sediment buildup, ensuring fresher, cleaner hot water.

How Long Do Tankless Water Heaters Last?

Tankless water heaters are built to last, typically functioning 10–15 years or more. With routine maintenance and descaling, some models can exceed 20 years of service.

Atherton Plumbing recommends annual maintenance to prevent mineral buildup and ensure peak efficiency.

Are Tankless Water Heaters Right for All Homes?

Tankless water heaters are suitable for both small and large homes, but choosing the right size is key.

  • Smaller households (1-2 people) – A single tankless unit can easily provide enough hot water.
  • Medium-sized households (3-4 people) – A higher GPM (gallons per minute) unit may be needed to support simultaneous hot water usage.
  • Larger households (5+ people) – Multiple tankless units or a hybrid system may be required to meet high water demands.

Our team can evaluate your household’s water usage and recommend the best system for your needs.

How to Choose the Right Tankless Water Heater Size

Sizing a tankless water heater depends on flow rate (GPM) and temperature rise.

Step 1: Calculate Flow Rate Needs

  • Determine the maximum number of fixtures (showers, sinks, dishwashers, washers) that will be used simultaneously.
  • Add up their flow rates (GPM) to find the total hot water demand.

Step 2: Determine Required Temperature Rise

  • Subtract the incoming water temperature from the desired output temperature (typically 110–120°F).

Example: If your cold water temperature is 55°F and you need hot water at 120°F, you require a temperature rise of 65°F.

Choosing the right GPM and temperature rise ensures that your tankless system efficiently meets your hot water demands.

Need assistance? Call Atherton Plumbing for expert guidance on selecting the right tankless water heater.

Other Uses for Tankless Water Heaters

Tankless water heaters are versatile and can be used for more than just household hot water.

  • Pre-heating for dishwashers and washing machines
  • Supplementing solar water heating systems
  • Providing hot water for hot tubs or additional bathrooms
  • Enhancing commercial and industrial hot water applications

Atherton Plumbing can install custom tankless solutions to meet a variety of residential and commercial needs.

Why Choose Atherton Plumbing for Tankless Water Heater Services?

  • 67+ Years of Experience – Trusted water heater installation and repair specialists since 1958.
  • Certified Tankless Experts – Our team is trained to install, service, and repair leading tankless brands.
  • Energy-Efficient Solutions – We help homeowners reduce energy costs with advanced tankless technology.
  • Transparent Pricing – No hidden fees—just clear and honest estimates.
  • Quick & Reliable Service – Fast scheduling and same-day installations available.

Serving Dayton and Surrounding Communities

Atherton Plumbing proudly provides tankless water heater services to residential, commercial, industrial, and municipal clients throughout Dayton, the Greater Miami Valley, and surrounding areas, including:

  • Beavercreek
  • Bellbrook
  • Centerville
  • Greater Dayton
  • Huber Heights
  • Kettering
  • Miamisburg
  • Middletown
  • Moraine
  • Oakwood
  • Springboro
  • Springfield
  • Waynesville

And surrounding areas!

Schedule Tankless Water Heater Installation or Repair Today

If you’re ready to upgrade to an energy-efficient tankless water heater or need repairs on your current system, Atherton Plumbing is here to help.

Call (937) 249-6144 today to schedule tankless water heater installation, maintenance, or repair and start enjoying endless hot water.

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Schedule Your Service Now!

What Our Customers Are Saying

Since 1985, Atherton Plumbing has been the trusted choice for thousands of homeowners and businesses across Northeast Ohio. Our commitment to dependable, high-quality plumbing services has earned us hundreds of five-star reviews. See what our satisfied customers have to say about their experience with us!

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Jennifer Peterson
July 6, 2026

An excellent job. Thank you for the information on the water heater.

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Joshua Castle
July 3, 2026

Quick service and friendly honest staff!

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Linda Riddle
July 3, 2026

Dillon was very nice. Explained everything. On time and finished quickly…90 plus degree heat. 🥵

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Bryan Williams
July 3, 2026

Excellent professional friendly service! I would use these guys again.

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Julie Hodge
July 2, 2026

I use Atherton for all of my plumbing needs and they always are very nice and honest. I appreciate all the care they put into fixing the multitude of issues I have had in my home from the usual plumbing issue to sump pump issues and install, to major leaks and beyond! They are always very responsive and when they can’t show as planned due to issues taking longer at a previous appt they always call and keep me informed. A+ for Atherton.

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Vickki Slusher
July 2, 2026

Was able to schedule service online same day and was not disappointed. Quality work and friendly tech. Will always call Atherton for plumbing needs

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Kyle Villa
July 1, 2026

Dillon was great and knowledgeable. Efficient and very helpful. Would recommend 10/10 times!

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Aaron Baker
July 1, 2026

Dillon was prompt and did exceptional work! He’s very realistic about his explanations and was awesome! 10/10 would recommend

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Showed up within the given time frame. Was professional and friendly. No complaints.

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Ryan Stockerdt
June 30, 2026

Anthony Boyers did great for my mother

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Mark Bidwell
June 30, 2026

Nick was awesome! He did excellent work. He took time to answer all of my questions. Couldn’t be happier!

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Kay
June 30, 2026

Macen did a great job replacing the water shutoff behind our fridge. He was friendly and professional and very knowledgeable about the work he was doing. We would recommend this young man.

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Mike Vine
June 29, 2026

George Streitz did a wonderful job installing a new shower door. He is always very friendly and professional.

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sally bussey
June 27, 2026

My experience with the plumber from Atherton was excellent. Nickolas was prompt, courteous, friendly and efficient. He explained options and pricing throughly. I will definitely use Atherton's services again.

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Curtis Menard
June 26, 2026

Excellent service and had our leak repaired in no time.

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Gail Ikerd
June 26, 2026

Macen was timely, professional and quick to acess the problem.

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Nancy Hartzell
June 25, 2026

Excellent service. Arrived even earlier than expected.

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Rock Man
June 25, 2026

Placed the service call to have my pedestal sink leak resolved. While Luke was here, I had him hook up the Omigo seat and replace the strainers in my sink with ones that fit properly. I spent more than I had anticipated but I'm super happy to have these issues resolved. BTW Luke was clear about the pricing so there were no suprises. Been a long time happy and loyal Atherton customer as they redid most of the plumbing in 2022.

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Donna queen
June 24, 2026

Good job! Fixed multiple issues quickly and professionally.

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Jason M. was wonderful to work with! Issue diagnosed & rectified quickly and professionally.

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Lisa Keane
June 24, 2026

Had to have a toilet replaced. Excellent and quick service- they were at my house in a few hours to provide a detailed estimate, and the next day to install. Did not try to push me into a getting a new toilet. Instead, they walked me through and provided a bid for my 3 options so I could make an informed decision. High quality materials (I did a comparison of product at big box stores) were used. Would definitely recommend to friends and neighbors. Macen and Dillion were great! EDIT- needed a kitchen drain unclogged and called Atherton again. Ryan showed up and took care of it. He did not try to oversell me on something he assessed that I probably didn’t need given my issue, which is key for me. He explained what he would be doing and also took the time to explain that it is usually dish soap that causes sludge build up over time and to use a vinegar water solution every so often to break down the soap residue. 90 day guarantee- so if the drain clog comes back within that time, it will be taken care of. Will continue to use Atherton again for any future needs.

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Jim Weyrauch
June 24, 2026

Had a new garbage disposal installed today. Macen explained our options and pricing up front. He did a fantastic job with the install, and cleaned everything up before he left. I have always used Atherton for my plumbing needs- they always exceed my expectations. Today was no different.

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Desiree Black
June 22, 2026

Had a great experience. Were we given a time of 12:00pm-3:00pm. A little after 11:00am Jason called asking if I would like him to arrive earlier as he was available or at the 12:00 window given. I happily took the earlier time. Jason even gave me an estimate time of his new arrival. With the inspection, cost estimate was given with clear explanation of what was needed and the options. Jason quickly fixed the issue and ensured all work fixed the issue we were having. Understanding of my still working from home, he was quite yet efficient. Thank you for being so great Jason!

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Andrew D.
June 22, 2026

I had them come over and cut out 2 abandoned gas pipes from my home. Tech was good, job done quickly. Im not any type of plumber, so I can't comment too much on pricing, but I was expecting to pay closer to $500 to cut 2 pipes and cap them, but it was $900. It was good work, I was just surprised it cost so much.

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David Madden
June 22, 2026

Experienced, locally owned and operated. Our plumber was knowledgeable and professional.

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Joylee Burton
June 19, 2026

Had a previously undetected leak in the basement. Dillon & Dalton fixed us right up within the quote and faster than quoted time frame. I won't call anyone else. Atherton's the very best!

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Adam Megnin
June 18, 2026

Amazing experience! Great work. The crew was very informative and explained everything they were doing.

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Alyssa Robinson
June 18, 2026

Nathan replaced corroded copper pipe in our kitchen ceiling that was leaking and likely to leak more. He was prompt, friendly, and efficient. Before I knew it, he was done! Billing was simple, straightforward, and transparent.

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Was pleased that they got me in the same day I called . Fixed what I needed and was in and out .

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richard katulak
June 17, 2026

Very quick and excellent work

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Gracia Lauti
June 17, 2026

Ryan did a great Job! So respectful and nice. I like that. Very knowledgeable in what he does. I’m happy to have called you guys. Keep up the wonderful work you do.

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Quick, friendly service. Clogged sink cleared in a timely manner.

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Rob Pinchot
June 17, 2026

I have used Atherton Plumbing in the past. When our sink drain was clogged I called at 12:30pm - by 2:30pm is was cleared! Jason did a great job fighting the snake to get the drain unclogged. WOULD recommend!

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Jim Fugate
June 16, 2026

The gentleman that came out was great , he replaced the toilet and made repairs on out sink , I would request this serviceman and company again in a heartbeat , thanks.

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Lisa Goodrich
June 16, 2026

Close attention to detail! Quick response with work being completed. Friendly!

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Pr0neY8ger
June 16, 2026

Water heater pilot went out after my basement flooded. Tried lighting it multiple times with no effect. Went a couple of weeks without hot water. Tech came out turned the gas on and it lit after a few attempts. Gave it 30 minutes and checked my water pressure and quality in the interim. High pressure and hard water, gave me some suggestions and a quote but didn't press.

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Linda Welin
June 15, 2026

Great service. Friendly & kept us up to date on what they found.

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Tammy Dolphin
June 15, 2026

We needed the main stack of our over 60 year old system replaced as well as a leaking copper drain line. Atherton sent a technician out promptly and the work was done in a timely manner by Nathan. The system was tested after installation and Nathan explained the work that was done and showed us what had been replaced. Nathan answered my questions to my satisfaction.

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Cindy Edwards
June 14, 2026

We had service on 5/28/26. Luke installed a shutoff valve on the water line to the fridge. This was done in preparation of receiving a new fridge the following week. Luke did a great job, re-working the line and attaching the valve to the wall, and fastening it for easy install of new line from the new fridge. Thanks for your ingenuity and explaination of the process.

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Janet Whallon
June 14, 2026

He was wonderful and got both jobs done quickly

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regina rainer
June 12, 2026

Was professional, friendly and fixed our leaking pipe quickly. I am quite happy with their service.

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Denise Harner
June 12, 2026

Excellent service and the technician was so helpful.

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L and S Mellott
June 12, 2026

Cannot say enough great things about Atherton! Anthony and Casey were on time, professional, exceptionally capable and endlessly patient with our questions (and the chaos of our basement-ha!).

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Chelsea Arnold
June 12, 2026

They were quick and efficient! Great customer service

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William Cremeans Jr
June 12, 2026

I had a main line clogged with roots..Atherton team arrived same day with the right equipment and had my pipes cleared quickly.So glad I called them to take care of my plumbing worries.Fair and upfront pricing put my mind at ease.

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clara harris
June 11, 2026

If it were possible to give 10 stars, JASON MAXWELL of Atherton Plumbing would be the recipient.I had a major leak from an old water heater. I panicked and my first thought was of Jason who had come out on another emergency about four years ago.. He worked diligently until he solved the problem. I am so grateful that he was available when I called . He came the same day, assessed the situation, gave me a quote, helped with paperwork and proceeded to get the job done within three hours of his arrival. Jason is the ultimate professional, Very detailed, courteous,arrived on time, removed the old water heater, installed the new one, placed everything back as it was.. If you are ever in need of a plumber, you will never go wrong with Jason. I highly recommend JASON MAXWELL and ATHERTON PLUMBING..

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Frances Wirtanen
June 11, 2026

We contracted with Atherton for installation of a Kraus double kitchen sink, Moen faucet, and Insinkerator disposal. George Strietz was the technician who performed the installation. He is a very experienced, highly skilled plumber who did an amazing job! He removed the old units, installed new drain traps, replaced old chrome/galvanized fittings with PVC, and installed the new units. Everything was done meticulously! When he was finished he cleaned everything up and took away the old units and boxes. We are so pleased with the entire process. His estimate was timely, price was reasonable, scheduling was perfect. We highly recommend Atherton and will certainly call them for any future plumbing issues.

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Edgar Davis
June 10, 2026

Excellent service.

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Bill Glasser
June 10, 2026

We have been using Atheton Plumbing for over 19 years. They are very reliable and dependable. Macen did a terrific job from our last service needs.

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Day Chesney
June 10, 2026

Great technician who identified my problem, explained what needed to be done and provided a quote for services. (Thanks Nate).

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