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.

Atherton Plumbing Logo

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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Marie Vore
May 28, 2026

They were out next day and fixed my issue right away!

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Wanda Warren
May 28, 2026

Technicians were prompt, friendly, and efficient.

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Gloria Flaherty
May 27, 2026

Highest recommendation.. Professional and pleasant. 10/10

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Kerry Polly
May 27, 2026

I received early notification that my service technician was on his way as well as his name and experience details. Ryan was friendly, respectful and kept us notified of his progress. Upon completion, he gave us tips on our toilet model. I asked for recommendations on a future project in our large bathroom. Ryan was very helpful and knowledgeable in his recommendation. My wife entered the bathroom where he had replaced our wax ring and she was very pleased on how much he had cleaned up the area. We are well pleased and will recommend Atherton plumbing.

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Robyn
May 26, 2026

Andrew was a great plumber today! He came and fixed our toilet and did a free home safety inspection and water test and gave me great tips for our home! He is friendly and very knowledgeable.

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AJ Woodward
May 26, 2026

Thank you, your guy Lucas French was outstanding, and your company is first rate. I will definitely call your company for any plumbing needs!

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Ryan was prompt. Explained our options. Answered all our questions and corrected the problem.

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Janie Connell
May 26, 2026

Very professional and knowledgeable about services.

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Justin Frazier
May 26, 2026

Wonderful service, very knowledgeable in what they are doing

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Scott Bennett
May 23, 2026

Had rising water in my basement. Called at 1:00 am and they had a plumber there by 3. Sump pump had burned up. Lucas French was the technician and he assessed and explained situation. He then replaced sump. He was very professional and I’m sure overworked last night due to the flooding rainwaters. Would absolutely recommend Atherton Plumbing.

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I love the text message wth the photo of the driver for the service call. I also love the text to say they are on the way w/in 30 mins. This is a great service and respects my time as well as theirs. Response to my request for service was outstanding

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Courtney Deutsch
May 22, 2026

George and Gabe were excellent! I had three plumbing problems/jobs, and all were addressed and fixed. They were on time, courteous, and clearly knew what they were doing. Very happy with their service. A+

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Joe Jancauskas
May 21, 2026

Very effective with my issue and very informative on additional steps that could be taken

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Susan Zindorf
May 21, 2026

Anthony and Gabe did an awesome job. Both were friendly and professional

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Jamison Kantor
May 21, 2026

Lucas was great! He assessed the issue, gave options, and didn't pressure us to choose the highest priced repair.

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Susan
May 19, 2026

Jason was fantastic! Service was great. Toilet repair and tub drain fixed. Was it expensive-yes but comparable to other companies. Will use again

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c Seya
May 19, 2026

Nick was absolutely amazing! We were quoted so much more for a simple fix that he was able to do reasonably. We are grateful for Nick’s kindness and knowledge in clearing out our pipes. Thanks again!

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Crystal
May 18, 2026

Needed service ASAP and they came out within the hour and fixed our leak. I was expecting an expensive bill but they were very reasonable. I would and will refer them to anyone.

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Bob Krauss
May 18, 2026

Jason was awesome.

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Brea Wyatt
May 16, 2026

Our kitchen faucet suddenly started spraying water from the side every time we turned it on. I expected a quick temporary fix, but the plumber actually took the faucet apart, showed me the damaged piece, and replaced it properly. He worked carefully around the countertops and wiped everything down before leaving.

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Craig Wolfe
May 14, 2026

Professional, work was done quickly.

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Eric Opicka
May 13, 2026

Friendly and knowledgeable. The Tech called ahead and arrived on time. He worked up the quote and we chose to do one of the items. The cost for doing kitchen sink was high, so we declined that. The work he did in correcting the plumbing hardware under the bathroom sink good quality.

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Joe Ullom
May 13, 2026

I’ve used Atherton Plumbing for years. They always get to the solution in a timely manner and prices are competitive.

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LaDonna Ross
May 12, 2026

Ryan did an excellent job. He explained what the probable cause was what caused it and how to correct it. He went to work in a timely manner and solved the situation. I always use Atherton plumbing!

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Ray Reinhard
May 11, 2026

A-Atherton rep was excellent CRM, knew product, had replacement on his truck. The cost was very high - total bill was 4xmaterial costs. Insinkerator MSRP $148, total bill $648.

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Linda Bailey
May 10, 2026

We had an issue with our kitchen sink. Our technician was professional, explained what needed to be done and made sure that the area was cleaned up when he was done. It was a disgusting job and I am so grateful for Atherton Plumbing!

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Laura James
May 10, 2026

Very knowledgeable technician!

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Barbara Connor
May 8, 2026

Had a positive experience with Nathan Floyd. He was knowledgeable in the workings of my soft water conditioner; gave me options re repair vs replace; no pressure re wh option to choose. Would recommend Athetrton for plumbing needs.

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m scher
May 7, 2026

Fast response and service! Appreciate the great service.

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Vickie Tharp
May 2, 2026

⭐️⭐️⭐️⭐️⭐️ Five stars for Atherton Plumbing! No one wants to find water spraying out of your hot water heater at 3:00 on a Friday afternoon. A quick Google search and thankfully Atherton Plumbing was the first to take my call. I had already shut off the water & put down towels. They said someone could be at my house in 30 minutes. I was shocked & pleasantly surprised. Mason got here quickly & was the nicest & very knowledgeable guy. He helped me understand what the problem was & my options including the cost of each. Since our water heater was almost 10 years old, the best options was to replace it. Within an hour Dylan arrived with the new water heater & they got it installed. They were extremely professional & respected my home. From the initial phone call to them completing the job was less than 3 hours. I am so thankful for Atherton! I did not plan on replacing the water heater today, but so happy it was done, done right & done quickly. I highly recommend Atherton Plumbing for anyone facing any dreaded water issues.

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terrell mundhenk
April 30, 2026

I had a toilet tank crack and leak, Atherton came the next day.and quickly fixed the entire problem and everything now looks great.

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Danny Staup
April 29, 2026

Showed up when said they would. Repair done same day.

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LaRon Burbridge
April 28, 2026

Jerry and Dillan installed a tankless water heater for me today. They were professional and careful to explain the unit and it's attributes. They worked dilligently with a smile. I'm looking forward to the convenience this unit brings to my home. I highly recommend Atherton for your plumbing needs.

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Jonathan Toops
April 28, 2026

Dalton was amazing, quick, and accurate in the work he provided today. Thanks for looking out for my family, in ur needed time.

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dimeandpenny
April 28, 2026

Lucas did a fantastic job and was quick and knowledgeable as well.

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Eric Borth
April 27, 2026

George was fantastic! Very thorough work with great customer service.

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Joan Rucker
April 25, 2026

Jason quickly diagnosed the problem, gave me price up front, gathered his equipment, then fixed the problem. Jason was very professional. My mother, sister and daughter have used a-Atherton, told me they do a great job for a fair price. I agree! I will be using them for all my plumbing needs. Thank you again!

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John Woodyard
April 24, 2026

The technician was excellent in both his technical skills and his ability to interact with the customer. Highly recommend.

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Chris Woodyard
April 23, 2026

Super-quality service! Quick response for an appointment. And an exceptionally skilled, friendly and very helpful tech--thanks, Jason!

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Mary Ann Weber
April 23, 2026

Ryan Maxwell was very pleasant, efficient & quick to unclog my toilet. I would recommend him & Atherton Plumbing for any plumbing issues.

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Celia Combs
April 23, 2026

Fast, courteous service every time we've used Atherton.

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SHEILA
April 23, 2026

I have always been pleased when using Atherton. Today Ben came out to fix a pipe that had burst. He was professional explained everything in detail and it was not only a job well done but he was a pleasure having him be the one in my home. In the past I tried supporting the Independents, those working on their own and it was always wasted money. I trust Atherton and support them 100%.

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Chase Farmer
April 22, 2026

They came out the same day I called and Lucas was super nice and very professional. Pricing was reasonable and I’d definitely recommend the to friends.

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Personal and thoughtful service.

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M brown
April 21, 2026

George, did a great job. He a very polite man. George keep up the great work

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Diana Houck
April 19, 2026

My main drain wasn't draining and I needed to have it cleared right away. I called Atherton Plumbing and the plumber came out that afternoon. The plumber was professional and did the job with everything now draining properly. I have no problem with the service I received. I do think they are incredibly expensive. The service call was $40 to come out and assess the problem, I have no problem with that. When speaking to the office person she said no estimate could be given over the phone, the plumber would have to see the problem first. The charge to clear my main drain was $577. Tree roots where the problem. I personally think that is about $200 to much. I am not a plumber nor could I do this myself so I paid it. As I said they did a good job getting my drain to clear but the price is too expensive. I doubt I will call them again for service because of the price.

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Tavia Williamson
April 17, 2026

Best service ever… reliable and honest.

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George Perley
April 17, 2026

Atherton did a great job. I was able to schedule online the night before and Macen showed up promptly as scheduled the next morning and did the job. No complaints

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Gary Turner
April 16, 2026

We asked for two small jobs. Both jobs we accomplished expertly, no surprises, no regrets! Thanks!

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John Snow
April 16, 2026

Luke did a great job. No muss, no fuss. NO MESS! Thanks, Luke!

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