Dayton Backflow Testing & Certification Services

Backflow Testing for Homes and Businesses in Dayton and Surrounding Areas

Professional Backflow Testing for Residential, Commercial, Industrial, and Municipal Clients

Backflow testing is a mandatory annual requirement to ensure that your drinking water remains safe from contamination. If your backflow prevention device has not been tested or certified, you risk water shutoff by local authorities.

At Atherton Plumbing, we provide certified backflow testing and repair services to homeowners, businesses, and municipal facilities throughout Dayton and the Greater Miami Valley. Our experienced team ensures that your backflow preventers comply with regulations and function properly to keep your water supply safe.

Call (937) 249-6144 today to schedule your annual backflow testing and stay in compliance with local and federal requirements.

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What Are the Legal Requirements for Backflow Testing?

Federal law mandates that all backflow prevention devices must be tested annually by a certified backflow tester. These regulations are in place to prevent contaminants, pesticides, and chemicals from entering the drinking water supply.

If backflow devices are not tested, local authorities can shut off your water supply. Each device has a unique serial number for record-keeping, and all testing and repairs must be covered by the consumer.

Atherton Plumbing makes the process easy by providing certified backflow testing, documentation, and repairs if needed—all in one visit.

Why Is Backflow Testing Important?

Backflow prevention devices protect public and private water supplies from contamination caused by herbicides, fertilizers, chemicals, and wastewater. Without proper testing, these pollutants could enter your drinking water and pose serious health risks.

Annual testing ensures that your backflow preventer is functioning correctly and prevents harmful substances from reversing into the clean water supply. Proper backflow testing:

  • Protects residential and commercial water systems
  • Prevents serious health risks caused by contaminated drinking water
  • Helps maintain compliance with state and federal regulations
  • Avoids costly fines or water shutoffs

If you have a sprinkler system, irrigation system, or a fire suppression system, backflow testing is required to prevent contaminants from entering the municipal water supply.

What Is Backflow and How Does It Happen?

Backflow occurs when water flows in the opposite direction than intended, allowing contaminants to enter the clean water supply. This can happen due to a drop in water pressure, causing dirty water to be siphoned back into drinking water lines.

A properly installed backflow preventer acts as a barrier, stopping pesticides, chemicals, and waste materials from contaminating your home or business’s water supply.

What Happens During a Backflow Test?

During a backflow test, Atherton Plumbing’s certified technicians will:

  • Shut off the water supply to inspect the backflow prevention device.
  • Check test cocks and shutoff valves to ensure they are working properly.
  • Use specialized pressure gauges to measure differential pressure readings.
  • Identify leaks, pressure issues, or faulty components.

If any issues are detected, our team can immediately perform the necessary repairs—saving you time and money. Unlike some backflow testers who only certify devices, Atherton Plumbing provides both testing and repair servicesin a single visit.

Why Choose Atherton Plumbing for Backflow Testing?

  • 67+ Years of Experience – Trusted plumbing professionals since 1958.
  • Certified Backflow Testing Experts – Licensed and trained to ensure compliance with state and federal regulations.
  • Full-Service Repairs – We don’t just test; we fix any issues found during the inspection.
  • Transparent Pricing – Upfront costs with no hidden fees.
  • Quick & Hassle-Free Service – Fast scheduling and reliable results.

Serving Dayton and Surrounding Communities

Atherton Plumbing proudly provides residential, commercial, industrial, and municipal backflow testing and certification services 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 Your Backflow Testing & Certification Today

Stay compliant with regulations and protect your drinking water with certified backflow testing from Atherton Plumbing. Whether you need annual testing, certification, or immediate repairs, our team is here to help.

Call (937) 249-6144 today to schedule your backflow test and keep your water safe.

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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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Susan
April 3, 2026

I was impressed and I would definitely recommend them. I want to thank Jason too, he was a great help.

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james bentley
April 3, 2026

Had them come out to provide a quote. George was extremely professional, kind to my wife and children, and just generally pleasant to be around. Provided quote based on our request and didn't try to sell us additional services. Highly recommend!

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Sharon Schoppe
April 3, 2026

Macen from Atherton Plumbing did an excellent job repairing a broken water pipe in a wall. Excellent communication throughout the visit, he didn't rush and his cost estimate was reasonable.

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Robin Harshe
April 2, 2026

Our shower in the basement was draining slowly. tried to fix it ourselves but we were unsuccessful. Called Atherton and they were able to come right out. Seems the problem went out to the foundation. Problem solved. Thank you

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pat purvis
April 2, 2026

Andrew was very polite and did an awesome job in a timely manor

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Tom Mahle
April 1, 2026

I was impressed with the quick response. Ryan arrived and looked at the problem, told me the cost and fixed the problem. Thank you

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Random Guy
April 1, 2026

Dillon got my drain open quick and clean!

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Mr random
April 1, 2026

Dillon did a great job on a toilet repair!

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Anonymous
April 1, 2026

Dillon did a great job on a weekend call!

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sherry samuels
March 30, 2026

Ryan did a wonderful job and was professional, friendly, and knowledgeable. He was able to answer any question I had easily and provided tips to avoid future issues.

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Janet Striker
March 28, 2026

Came out quick to fix our problem.

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Dan Awsumb
March 28, 2026

Main drain was blocked. Dillion was professional and explained the issue well.

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India Cooper
March 27, 2026

I had to have a drain pipe replaced, a new shut off valve and a widespread faucet replaced. All I can say is Nick and Gabe did a wonderful job. I couldn't thank them enough! They were very friendly, professional and efficient. I am truly grateful for them and I will definitely use their services again, as well as recommend Athertons Plumbing to my friends and family

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Jake Gayman
March 27, 2026

Andrew did a great job replacing my shower cartridge. Price was reasonable.

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Bryan Bardine
March 24, 2026

The plumber was very nice and pleasant. He kept me up to date on what he was doing, which was important. He got the job done in the amount of time he said he would. The price did seem a bit high for me.

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Scott Graham
March 24, 2026

Andrew Strausbaugh did a great job installing our new water heater. He double checked all connections to make sure that everything was perfect. He carefully explained the operation of the unit. Atherton handled our project professionally and at a very competitive price.

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kathleenlcollins
March 21, 2026

I will use Atherton again when needed.

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Ron Pierce
March 19, 2026

It has been difficult for me to find a commercial plumber in the Dayton area. I tried Atherton out and was impressed with the service. Their cost was half that of RR and they actually solved the problem. Professional crew with fair prices.

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Kenneth Teutsch
March 18, 2026

Macen from Atherton came out to my house for a clogged toilet. It was actually working from something I had done overnight by the time Macen got here. But Macen was so professional, knowledgeable, friendly , and informative . He provided great advice! If he is a representative of your company , you are doing good! I will always use Atherton going forward , because of my great experience with Macen today! 5 stars!

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Edgar Davis
March 17, 2026

Excellent service.

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Eric Simon
March 15, 2026

Leaving five stars for technician Ryan who was quick to arrive on sunday, did a great job and explained the service well including showing me the intruding tree roots with camera. To Atherton ... once the $250 weekend fee was added in, I basically paid $400/hr ... Yikes.

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Bradley Allen
March 15, 2026

Very personable down to earth and very does a thorough job. Andrew is all of these things and more. 3/11/26. Mason came to do a repair on the water heater. Great personality and very thorough. Job well done

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David Magnaterra Sr.
March 13, 2026

Anthony Boyers went above and beyond fixing multiple issues. The culture and expertise at Atherton supersedes any competition in the region.

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marvin emmel
March 12, 2026

Prompt, knowledgeable and considerate technician. Everything was explained up front with additional services offered. He took time to listen to my concerns and fixed what I asked for. We are pleased with the service we received. Thanks

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Galaxy Rose
March 12, 2026

I could not have asked for better service or better price. I had an issue with a leaking toilet, and they made sure I knew all the options up front, and when they hammered the tile they clearly explained my options, even though some options meant less work for them. I will be using atheron for all my plumbing work in the future.

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John Paul
March 8, 2026

Atherton Plumbing is first on our list of trusted plumbers in the Dayton Area. They are knowledgeable, professional, and helpful, fully explaining any planned work with an accurate estimate before they get to work. If anything needs extra explanations, they are courteous and patient. Always satisfied.

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Walter Watkins
March 5, 2026

The technician was very knowledgeable and quickly determine the issue was not in the plumbing. He took pictures of the area and recommended that we contact a foundation contractor for more evaluation.

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Sharlou
March 5, 2026

Quick to respond. Very efficient & knowledgable. I’m a lifelong fan of Atherton

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NIckJan Gaerke
March 4, 2026

Macen & Dalton did a great job on the installation of new water heater. They were very good at keeping the house clean as they did their job. They explained everything before starting

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Linda
March 3, 2026

Jason and Caleb showed up right on time and quickly made my repair. They traced the source of the leak, gave me an estimate for repair, and were done and gone very quickly. Awesome service!

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John McKinney
March 2, 2026

Andrew arrived quickly. He was courteous. I knew what he was doing. Fix the plumbing under the sink in the kitchen in about 30 minutes. I would highly recommend Atherton plumbing.

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Claire Hale
March 2, 2026

Jason is the go-to guy for our whole house grinder pump. He is quite knowledgeable and always a pleasure to work with!

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Jay R. Coleman
February 27, 2026

Fast, friendly, knowledgeable service. Couldn't be more pleased !!

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Peg Scudder
February 27, 2026

Jason did a wonderful job for us. He was very thorough and professional.

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Laura Garcia
February 26, 2026

The price to come was low compared to other places that charge over $100 just to show up, and it was waived when I had them complete the service. Friendly service with integrity and was able to get help same day. Very happy!

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Tom Oatney
February 26, 2026

Called at 9:30 to fix leak under bathroom sink and faulty tub spout that diverts water from tub to shower. Technician arrived withing 30 minutes to assess the problems. Both issues quickly fixed. Price seemed a little high for those two items but it was done quickly.

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Mad MO
February 25, 2026

Sunday morning text from our tenants that shower, sink and toilet were backing up. Called Atherton, they explained the emergency pricing, tech called me 5 minutes later and asked some questions and walked me through the process and pricing. 5 minutes later i had a text with a picture of my technician, Nick, and that he was on his way. 30 minutes later i met himat the property, everything fixed in less than an hour, keeping me in the loop at every step. He did a great job of fixing the issue and cleaning up after himself. I love Atherton for their responsiveness and quality of work.

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Christina Rathburn
February 25, 2026

Anthony was absolutely amazing helped me fix my kitchen faucet very knowledgeable and friendly very efficient in his work!

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Chris C.
February 25, 2026

Service was same day for sink drain line repair and sink line clean out. Plumber was knowledgeable, courteous. Will definitely use again

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Deborah Huffman
February 25, 2026

I had a great day with the Atherton Plumbing team when they came to my home on Tuesday. They did a great, and it didn't take long. Thank you Atherton Plumbing.

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Mike Wathen
February 25, 2026

main sewer backup, unclogged using the jetting process. Friendly, professional, cleaned up the area. cannot give 5 star due to the price.

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Bob Hester
February 24, 2026

Lucas did a nice job for us

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Vic Mosby
February 24, 2026

Had water heater go out overnight and called for help at 0900. Was scheduled from 12-4:30 for repair or replacement and Tech arrived at 4:15 approximately. Tech was very kind and knowledgeable to work, performed expertly and was back with hot water by 8:00 pm. Fully replacement!! Thank you

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Jeff Spracklen
February 23, 2026

Great result from the service. Although the sump pump issue was minor, so was the charge. I appreciate the quick response and reasonable cost. Thanks!

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punky punk
February 23, 2026

Feb 23, 2026 I called Atherton Plumbing just yesterday to help with a clogged basement kitchen sink drain that had not only backed up ~ dirty water went all over my counter and floor. What a mess!!! So very happy Atherton sent Jason to my home. He thoroughly accessed the situation and explained everything he needed to do to fix the drain and was kind enough to answer all my questions plus he threw in a bit of his knowledge about water sensors which definitely enlightened me. I will be purchasing these sensors...He and the other guy helping (sorry I didn't catch his name) cleaned everything up nicely. I highly, highly recommend Atherton Plumbing. They will certainly be my go to for plumbing needs. Thank you Atherton & Jason you rock!☆☆☆☆☆ + ☆☆☆☆☆ 🙂

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EPC UD
February 23, 2026

Anthony from Atherton Plumbing did a fantastic job with our garbage disposal replacement. Very straightforward scheduling process via the website and quick service turnaround. Greatly appreciated Anthony's professionalism, skill and friendly demeanor. Thank you!

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Tony Napier
February 21, 2026

Very quick response. Even worked late to get my floor drain clear. Knew exactly what to do the second he saw the floor drain. These folks are pros. If you’re a landlord and need a responsive team that’s fairly priced- these are your guys.

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We had a clogged sewer drain, I called Atherton and they were at our property within 2 hours and took care of the issue quickly.

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Phyllis Baker
February 19, 2026

Jason Maxwell came out to check my water heater. He was able to come out the same day that I called. He inspected my corroded water heater and told me it needed to be replaced, before it made a bigger mess than it had made already. The whole tank was really rusty and corroded and water was in the tray. He checked on the price and said he had good news and bad news. The good news was the tank was under warranty and the bad news was installation was $1400. Well...I don't have the skills to install a water heater and told Jason to go ahead. He had to go pickup a water heater, but was only gone about 30 to 40 minutes. He had the water draining out of the old water heater while he went to get the new one. He took the old water heater out and installed the new one and cleaned up the little bit of water that dripped on the floor. Ran water to get the air out of the lines. I asked Jason if he could show me how to change the filter in my Nuvo water softener. He said, "sure". This system was really different from our old one and I bought the wrong filter, so I'm Really glad he helped me out. It only to Jason about 3 hours total, including having to go pickup the new water heater. I asked him some questions about tankless system, because I was curious. He was very knowledgeable and didn't mind answering my questions. We've had good luck with Atherton Plumbing and have used them several times. We've been pleased with all the plumbers.

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Rhea Rowser-Gray
February 18, 2026

Excellent, fair price, efficient, they come out quickly, they are pleasant

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