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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Mark
June 8, 2026

I highly recommend Atherton. They were able to come out and give me a quote within an hour and replaced my ancient water heater the same day. Their price was reasonable and Anthony was quick and efficient on the install, especially given the complexities of a 140 year old basement

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Michael Coker
June 5, 2026

Professional, understanding and knowledgeable. I am very thankful for their service.

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Neal Leffel
June 5, 2026

Anthony came here and checked out our water softener. He tested the water hardness of our water before the softener and from the softener. We are in good condition for the hardness. Anthony was very professional and explained everything to our satisfaction

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Kathi Baker
June 5, 2026

Tony and Lucas did a great job

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Wayne Hallenbeck
June 4, 2026

Plumber (Luke) was able to use parts (“J” bend/joint & pop up drain) I purchased 3 days ago to stop leaks. Labor time was about 40 minutes.

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rhonda beckett
June 4, 2026

Atherton plumbers, Dillon and Tony, came out today to hook up my new washing machine today. They were courteous, tidy, and fast. They hooked up my machine when the appliance delivery company couldn’t! They were great!! Thanks Dillon and Tony!

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Gary Wiviott
June 4, 2026

Leaking copper water lines located behind water heater. The leaking sections were replaced with new copper piping. The plumbers performing this job were Nathaniel and Gabe. Nice guys. The quality of their work was outstanding. As a side note. I called Atherton initially and talked to Becky and described the problem with my plumbing. She was also nice and good at her job. She said the plumbers would be at my house that afternoon. The plumbers arrived at my house about 15 minutes after that call. The job was complete 3 hrs. later.

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Maureen Cerni
June 3, 2026

Lucas went above and beyond, from the initial assessment to the completion of work. Out of the three service calls I scheduled to quote a water heater replacement, he was the only one to notify me that the main shut off valve would also need replacing (could not be turned by hand). As a new homeowner, his attention to detail has given me substantial peace of mind.

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Donna Barlett
June 3, 2026

Saturday late afternoon my tub and toilets were backing up. I had no choice to call a plumber after hours. I always use Atherton plumbing in the past. I always recommend Atherton to my friends. They are honest and up front about everything. My Technician Dillion worked about 3 hours to try to open the space. He was able to reach about 35 feet. He was honest and told me on Monday they will be out to do hydrojet. It was costly , but it did the work. I was very pleased with Dillion. He was a very hard worker. Please with Atherton.

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Patti Breig (PJ)
June 3, 2026

Ryan came ro our rescue... polite, was well qualified, cleaned up amazingly well. We were blessed he was our answered prayers. Thank you Atherton - please thank Ryan for us too. Breigs - Union Ohio 🫡

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Jon Tomlinson
June 2, 2026

Replace outside spigots

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Judith Dorsch
June 2, 2026

Dillion and Tony were very knowledgeable and helpful, on time , polite and did everything in one day. I would highly recommend this company

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Joel Emmel
June 2, 2026

Excellent service

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Dillon,Tony, llyod, George were all here. Very helpful and knowledgeable. Went above and beyond to find the source of my issue, was super helpful and I’m grateful.

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M. Laugh
June 2, 2026

Very professional.

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Dezarae mays
June 1, 2026

I had a very positive experience today! I called to have them check work they have done as I had some back up happening in the same spot the previous work was done, they got everything cleared out and working again quickly! Thank you to Dillon and Tony for being awesome!

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Jim Chandler
June 1, 2026

Arrived on time. Was very polite and even listened to my stories while completing the service. I was 100% satisfied with the services completed.

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My repairman, Ryan Maxwell, showed up on time, was friendly, efficient, and did a great job on a leaking toilet. The price turned out to be very reasonable because the fix was simple for him (not for me) and I had a coupon. I have been using Atherton Plumbing since 1971 when it was local and family run. It is now part of a larger company but the same quality, timely, work. I will call them again but I sincerely hope I won't need to.

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Julie Klingenberg
May 30, 2026

Todd was personnel and knowledgeable. He was quick at his work. He also answered all my questions. I would recommend him and the company he works for. Nice guy!

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Russell Cron
May 29, 2026

The technician was very friendly and competent. Fixed my issue nicely. My only concern is that I felt the price for the service was too high.

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Spencer Bryant
May 29, 2026

Anthony came over and quoted us for a water heater install after a basement flooded. He was very nice, knowledgeable, and would definitely use Atherton again

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Sarah
May 29, 2026

Nathan did a fabulous job!!

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Erin Claxton
May 29, 2026

I called Atherton Plumbing for a toilet repair. Luke did an amazing job and left the area clean afterward.

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Joseph Jancauskas
May 29, 2026

Very prompt, efficient service. It is nice touch that you receive a text message with a photo of the technician when they are on their way. Very informative as well.

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Joylee Burton
May 29, 2026

Been using Atherton for 15+ years & 2 different houses. They never fail to deliver great results and always finish within the estimate they give. They even try to find a way to save their customer money & time. Dillon, Casey & Gabe were great. All the guys that have ever helped us have been great. They are all experienced plumbers with integrity.

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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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