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O'Neail's Septic & Portable Toilet Service takes pride in providing customers throughout Festus, MO with solutions for any and all of their septic needs. From sanitary portable toilet rentals, to septic repair and pump replacement, we put the health, safety and satisfaction of our customers first. Contact us for a free estimate any time, 24 hours a day.

Septic troubles can get messy quickly. Resolving them quickly and thoroughly is paramount, and that's exactly what the crew at O'Neail's Septic & Portable Toilet Service strives to do when you call us for service. From backflow situations to a clogged septic pump, routine tank pumping to septic tank cleaning in Festus, MO, we provide the critical services you need to avoid major septic headaches.

Our teams bring expert knowledge and a satisfaction-driven approach to every jobsite, meaning you can count on us for a job that's done well the first time through. Plus, we're available night and day, to ensure you're getting reliable septic services 24 hours a day.
Services
No matter what your situation demands, our team has the solutions you're looking for. We can even help you determine how many rentals you need and where to appropriately place them for optimal accessibility. In an effort to deliver complete satisfaction to our customers, we operate with extreme flexibility.
Even though it's buried deep underground, your septic tank has the potential to cause you all sorts of headaches when problems arise. Not only are major septic issues costly to fix, they can also be immediately hazardous to your health. If you suspect something isn't right with your septic system, it's important to contact the team at O'Neail's Septic & Portable Toilet Service LLC right away.
Without a working septic pump, your entire system is at risk for failure. Don't let things get to that point. Instead, call O'Neail's Septic & Portable Toilet Service LLC for pump replacement services. We're highly adept at identifying pump problems and correcting them entirely through a viable pump replacement.
We needed to have our septic system serviced, our neighbors suggested we give O'Neail's a call. VERY GLAD WE DID, from the moment we called, it was as if we were talking to an old friend, plus they arrived on the day scheduled, the driver was friendly, knowledgeable and respectful. During the service, he even offered several suggestions to improve our system's performance and he left no "trace" when he was finished.
Put your septic system in the hands of experienced professionals you can trust. When you need tank pumping or cleaning, or pump repair or replacement, O'Neail's Septic & Portable Toilet Service LLC stands ready to provide service. We even offer portable toilet rentals to customers throughout the region, solidifying our reputation as a customer satisfaction-driven company.
Reviews (9)
Minxracing
Minxracing
Sep 22, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Friendly reasonable prices great responce time to my emergency . will use again in the future!
Shawn Wood
Shawn Wood
Sep 04, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Very informative and I was thankful they squeezed us in on a short noticece.
One
One
Jul 04, 2021
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I first called the company to schedule a septic pumping/cleaning. They told me 10/12 days.
3 weeks later I call them & they made up a reason saying it had to be dry in the notes. I never told them that, so they said your next on the list. Here it is another two weeks later & they haven’t even called me. I could of had 5 other companies in by now, but unlike them I am a man of my word I committed to them. 100% look around unless you like the the service window 1 week to 2 months
Pete Powell
Pete Powell
Oct 28, 2020
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We needed to have our septic system serviced, our neighbors suggested we give O'Neail's a call. VERY GLAD WE DID, from the moment we called, it was as if we were talking to an old friend, plus they arrived on the day scheduled, the driver was friendly, knowledgeable and respectful. During the service, he even offered several suggestions to improve our system's performance and he left no "trace" when he was finished. We are very happy we used O'Neail's, will definitely use them again.
Andrea
Andrea
Sep 11, 2020
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Critical: Professionalism, Responsiveness
Well if you like waiting for nothing this is your place! Waited for 2 months for someone to come out, they even told us we didn't have to be home. They will call you but leave no message. So if you're at work and can't answer your phone they will just skip you. Terrible customer service!
Amy Johnston
Amy Johnston
Jul 06, 2019
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Great service! Randy was very knowledgeable considering our subdivisions unique situation with the septic/sewer and water. He arrived quickly and knew the exact problem almost immediately. He explained everything to me which I appreciated. What stuck out to me the most is that he quoted the job to be $100 more than what it actually ended up to be, and then TOLD me! You don't find honest people much less companies who wouldn't pocket just pocket the money and not say a word. That's amazing. I will be using this company in the near future and I will highly recommend them to anyone needing good, honest
LeAnn Nunn
LeAnn Nunn
Dec 16, 2018
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The person that we used to rent our house from used this service, and he always came very quickly and did a good job. BUT, we bought the house from our landlord, and he came out once. I've tried texting and calling, and have waited for at least a week to hear back from him. He never got in touch with us, and we had to go with someone else in order to get our holding tank pumped out. NOT GOOD SERVICE!!!!
Duane Singleton
Duane Singleton
Dec 08, 2018
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Got toilets cleaned and was nice and fresh. Cleanest toilets I ever seen in the fairs around here!
LaVonne L.
LaVonne L.
Jul 04, 2018
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Tgey are family owned and operated and take care of you like tgeir own family. They do above and beyond for you to make sure you are a happy customer. I will always recommend them to anyone looking for quality work and amazing service for their septic needs.