Premium portable toilets & septic in Thayer, MO


King John's Portable Toilets and Septic in Thayer, MO offers both residential and commercial portable toilet rentals and septic services! Our toilets are clean, and we offer complete setup and pick-up service. We service southeast Missouri and northeast Arkansas, including Willow Springs, West Plains, Mountain Home, Mountain Grove, Seymour, Ava, Evening Shade and beyond!


We are an approved vendor for BNSF Railway

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24/7 Emergency

Having an emergency situation? We know how important septic issues are - so, no matter the time - we've got you covered! Call us 24/7 for our emergency service!


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Premium Equipment

We offer portable toilet rental services as well as residential and commercial septic services. Our equipment is state-of-the-art and we will get the job done right!


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Schedule Now

From private parties, outdoor and sporting events or any other occupation - Call us today to schedule your portable toilet service today!


Now Offering: Portable Restroom Trailers & Roll Off Dumpsters

King John's Portable Toilets and Septic is now offering portable restroom trailers and roll off dumpsters. Call us at (417) 264-3589 for more details.

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A silver utility truck with a mounted metal tank and KJ logo, parked outdoors with a red vehicle visible in the background.

Service Area

• Ash Flat, AR
• Evening Shade, AR
• Gassville, AR
• Highland, AR
• Paragould, AR
• Salesville, AR
• Birch Tree, MO
• Eminence, MO
• Houston, MO



• Mountain Grove, MO
• Poplar Bluff, MO
• Thomasville, MO
• West Plains, MO
• Winona, MO
• Cotter, AR
• Flippin, AR
• Hardy, AR
• Mountain Home, AR



• Ravenden, AR
• Ava, MO
• Cabool, MO
• Gainesville, MO
• Licking, MO
• Mountain View, MO
• Seymour, MO
• Van Buren, MO
• Willow Springs, MO