Plumber moving a new water heater on a dolly to a home's front door

Plumbing in Dayton, Kettering, Oakwood and Beavercreek

We handle drain cleaning, water heaters, sewer lines and leaks for homes and businesses, and our team is led by a licensed Master Plumber.

4.9 stars from 220 Google reviews

  • Over 23 years of hands-on plumbing experience
  • 2-year warranty on all services
  • Emergency plumbing available 24/7

24/7 emergency service

Call 937-815-2006

Recent jobs

These are photos from our own jobs, including tankless water heaters, boiler rooms, commercial restrooms and sewer line excavation.

All photos

Common plumbing problems we fix

A few of the jobs we take on, from small repairs to full replacements.

  • High-pressure hydro-jetting
  • Water heater repair
  • Camera inspection to locate damage
  • Water softener installation
  • Office restroom and fixture repairs
  • Finding hidden leaks in walls, ceilings and floors
  • Kitchen faucets and sinks
  • Burst and frozen pipes
  • Camera inspection to locate blockages
  • Minimally invasive sewer line replacement
  • Water softener replacement
  • Restaurant drain and grease line cleaning

Reviews from our customers

We have a 4.9 rating on Google from 220 reviews, and these are a few of them word for word.

“Jeremy has helped me with plumbing issues for my personal home and for several of my clients. He's always in a positive mood, efficient, respectful, and easy to work with. I've referred him to a number of people.”
Laura M.
“Transparent details of job to be done from beginning to completion! Fair pricing. Chris was thorough with quote and explained in detail of service we needed in our home built in 1860. Devonte’ and his team were respectful and professional! Thanks to Matt for all your help and for getting our BIG job on the calendar ASAP. Will definitely call Mammoth for future plumbing needs.”
Rita Pate · Google
“Eli was very nice and professional! Great communication before and during appointment. Showed up on time and even asked about coming early. Incredibly efficient diagnosing and installing a new sump pump. Would highly recommend this company!!”
Jillian Sacha · Google
“Very professional and quick to respond. I appreciated the transparent pricing and honesty of the repair rather than pushing to sell.”
Drew Horn · Google
“Fast, effective and terrific service. Taylor was very good and thorough. I highly recommend Mammoth Plumbing and Taylor.”
Claris Parks · Google
“Taylor is a pleasure to work with. Her communication is excellent, as is her commitment to an excellent work ethic and a job well done!”
Chris Pierson · Google

Commercial plumbing for offices, restaurants and industrial sites

We work on plumbing for offices, restaurants and industrial facilities around Dayton, from restroom fixtures to large piping networks. We plan each job to keep downtime low and to meet commercial building standards.

  • Free estimates for commercial work
  • Drain jetting and camera inspection
  • Licensed and insured
  • Emergency service available 24/7
Talk to us about your property

Common plumbing questions

Something else on your mind? Call 937-815-2006.

All questions
How do I know if my water heater needs repair or replacement?

If your water heater is more than 10 to 12 years old, is leaking, makes noise, or puts out rusty water, replacement is usually the better call. Options include conventional gas or electric tank heaters, high-efficiency condensing gas units, and tankless on-demand systems. Tankless saves space and energy for households with high intermittent demand, but it may need upgrades to your gas or electrical service. We look at your usage, energy costs and local code before recommending one. Read more about our water heater work.

What should I do if a pipe bursts or I have a major leak?

Shut off the main water valve first to limit flooding. If water is near outlets, turn off the electricity, and then move valuables to a dry area. Take photos of the damage for insurance, and call or text us at 937-815-2006, because our emergency plumbing service is available 24/7.

Why does my drain keep clogging?

Common causes are grease and fats in kitchen lines, hair and soap buildup in bathrooms, foreign objects, and tree roots in sewer lines. We start with a camera inspection to find the cause, then choose mechanical snaking, hydro-jetting or a targeted repair. Because hydro-jetting needs a pipe evaluation first, we check the line before we use it. More on drain cleaning and jetting.

Do you offer free estimates?

Yes, we provide free estimates for both residential and commercial plumbing work. To get one, call or text 937-815-2006, or send a quote request.

Which towns do you serve?

We're based in Dayton and serve Dayton, Oakwood, Kettering, Centerville, Washington Township, Springboro, Beavercreek and Fairborn. If you're nearby and don't see your town, call us at 937-815-2006 and ask.

Do you handle sewer line problems and backups?

Yes. We use camera inspection to find damaged or root-blocked sewer lines, and we do minimally invasive sewer line replacement when a line has failed. During a sewage backup, avoid contact with the water, ventilate the space if it's safe, and call us. More on sewer line replacement.

Tell us what's going on

Send us a few details and a photo if you have one. We'll get back to you to talk through the job and set up a free estimate, and for an emergency you can call or text 937-815-2006 any time.

Request a quote

What do you need help with?
Enlarged project photo