Registered OWTS installers in Cole County, Missouri
112 companies on Missouri’s roster of registered onsite wastewater treatment system installers give Cole County as their address. A registered installer is a business the state has licensed for the work that installs onsite wastewater treatment systems.
- ABC Sewerman Installation and Maintenance(573) 378-6305Gravois MillsInstallerLicence expires June 30, 2026
- Accurate Bobcat Service(573) 387-4373AuxvasseInstallerLicence expires March 31, 2028
- Adamson Construction & Investment(573) 673-2405ColumbiaInstallerLicence expires March 31, 2028
- Advanced Septic & Pumping(573) 636-2727St. ThomasInstallerLicence expires September 30, 2027
- Advantage Contractors(573) 268-7292ColumbiaInstallerLicence expires October 31, 2025
- Affordable Plumbing, Sewer, and Drain Cleaning(573) 418-9495Jefferson CityInstallerLicence expires September 30, 2028
- Alexander Land Works, LLC(573) 821-4510IberiaInstallerLicence expires September 30, 2026
- All Clear Pumping & Sewer(573) 634-0165CentertownInstallerLicence expires January 31, 2026
- Arthur Ratliff Tree and Stump Removal(573) 446-2266ColumbiaInstallerLicence expires January 31, 2028
- Atephac.(573) 239-9969ColumbiaInstallerLicence expires January 31, 2026
- Barry Maupin Excavating, Inc(573) 642-9348FultonInstallerLicence expires April 30, 2026
- Bentlage Bobcat(573) 823-8769AshlandInstallerLicence expires July 31, 2028
- Bill Binkley & Sons Excavating LLC(573) 496-3292Jefferson CityInstallerLicence expires March 31, 2026
- Bio-Gard Inc(573) 442-0692ColumbiaInstallerLicence expires March 30, 2027
- Bo's Home InspectionsInstallerSoil evaluatorLicence expires September 11, 2027
- Brandl's Construction Services LLC(573) 301-7148FultonInstallerLicence expires April 30, 2027
- Butcher Construction & Excavation(573) 230-1836FultonInstallerLicence expires March 31, 2028
- BW Dirt Works & More LLC(573) 606-9573WestphaliaInstallerLicence expires May 31, 2026
- Bylo Acres(573) 645-1850HenleyInstallerLicence expires March 31, 2027
- Bylo Acres Excavation and Grading(573) 645-1850HenleyInstallerLicence expires March 31, 2027
- C.L. Richardson(573) 682-4452AshlandInstallerLicence expires April 30, 2027
- C&H Septic Service's(660) 263-7901MoberlyInstallerLicence expires July 31, 2026
- Carpenter Earthworks LLC(573) 353-2530CaliforniaInstallerLicence expires September 30, 2028
- Cedar Creek Dirt Works llc(573) 239-6778AshlandInstallerLicence expires April 30, 2027
- Central Missouri Home Inspections LLC(573) 289-7077ColumbiaInstallerSoil evaluatorLicence expires April 30, 2026
- Central MO All Service Plumbing(573) 964-5331Lake OzarkInstallerLicence expires November 30, 2025
- Central MO All Service Plumbing & Excavating(573) 964-5331Osage BeachInstallerLicence expires January 31, 2028
- Corey Myers Construction LLC(573) 825-4026AshlandInstallerLicence expires November 30, 2026
- Courtney Construction Company LLC.(573) 410-5644Sunrise BeachInstallerLicence expires March 31, 2026
- Courtney Construction LLC(417) 926-1479Mountain GroveInstallerLicence expires January 31, 2027
- Cox Excavation LLC(573) 552-1765TuscumbiaInstallerLicence expires January 31, 2026
- Custom Power Excavating, Inc(573) 774-7155RosebudInstallerLicence expires June 30, 2028
- CW Lillig Contracting(913) 653-3974ColumbiaInstallerLicence expires January 31, 2026
- Dana AustinInstallerLicence expires September 30, 2026
- Darrell Wilbers Exc. Inc.(573) 690-4922Jefferson CityInstallerLicence expires May 31, 2028
- David Fromme Excavating, LLC(573) 896-5358Holt SummitInstallerLicence expires May 31, 2026
- Davis Septic(573) 347-9888Climax SpringsInstallerLicence expires July 31, 2028
- Digging Plus LLC(573) 590-3584New BloomfieldInstallerLicence expires March 31, 2026
- Diversified Excavating LLC(573) 881-0099ColumbiaInstallerLicence expires February 28, 2027
- Dogstone Home Inspection(417) 350-6379BillingsInstallerSoil evaluatorLicence expires July 31, 2026
- Double J Excavating(573) 489-3112ClarkInstallerLicence expires January 31, 2026
- Doug Briot Bobcat Service Landscaping Co(573) 690-7411HenleyInstallerLicence expires August 31, 2026
- Elite Wastewater Solutions LLC(573) 687-7011SturgeonInstallerLicence expires March 31, 2028
- Foiles Trucking LLC(618) 410-3669JerseyvilleInstallerLicence expires May 31, 2027
- Four Seasons Plumbing(573) 216-8487Osage BeachInstallerLicence expires January 31, 2027
- Fox Earthworx LLC(873) 789-6522VersaillesInstallerLicence expires January 31, 2028
- Good Neighbor Soil Evaluators(443) 567-3536HallsvilleInstallerSoil evaluatorLicence expires January 31, 2026
- Green Acres Home Inspections(573) 789-3038EldonInstallerSoil evaluatorLicence expires July 31, 2027
- Green Shore Excavating(573) 480-6473BarnettInstallerLicence expires February 28, 2026
- Green Shore Excavating(573) 480-6473BarnettInstallerLicence expires May 31, 2028
- Greg Wickam Excavating(573) 692-1107EldonInstallerLicence expires August 31, 2027
- Groose Heating & Cooling(573) 338-1623EugeneInstallerLicence expires November 30, 2025
- Hackmann Trenching & Backhoe LLC(573) 694-2169ChamoisInstallerLicence expires April 30, 2027
- Haskamp Excavation(573) 825-3878ColumbiaInstallerLicence expires May 31, 2028
- Henry Excavating(573) 466-6016AuxvasseInstallerLicence expires February 28, 2028
- Hodge Excavating(573) 280-0924Lake OzarkInstallerLicence expires March 31, 2026
- Honest Abe’s(573) 514-8146EldonInstallerLicence expires January 31, 2026
- Honest Abe's Home Services(573) 286-7540Osage BeachInstallerLicence expires November 30, 2025
- Hoover's Septic & Plumbing(573) 286-1109VersaillesInstallerLicence expires November 30, 2028
- Integrity Earthworks LLC(573) 220-3507FultonInstallerLicence expires September 30, 2026
- J &E Septic(573) 533-0051JamestownInstallerLicence expires December 31, 2026
- J.D. Kelly Excavating Inc(573) 808-1606ColumbiaInstallerLicence expires May 31, 2028
- Judson Brady(815) 790-6784Rocky MountInstallerLicence expires December 31, 2026
- K&P Services LLC(816) 854-9091Blue SpringsInstallerLicence expires August 31, 2028
- Kennett Exc(573) 826-8728ColumbiaInstallerLicence expires April 30, 2026
- Kevin Sublett Excavating(573) 808-5703HarrisburgInstallerLicence expires May 31, 2027
- Koenigsfeld Excav(573) 690-1281CentertownInstallerLicence expires March 31, 2028
- Lehman Excavation & Ground Services(573) 508-4897Jefferson CityInstallerLicence expires January 31, 2027
- Luke Sandbothe Bobcat Service(573) 690-5552Jefferson CityInstallerLicence expires January 31, 2027
- M & M Landscaping and Construction, LLC(573) 680-6954EugeneInstallerLicence expires June 30, 2026
- Mark's Lawn Care and Landscaping LLC(573) 826-1955FultonInstallerLicence expires March 31, 2028
- Marvin Perrigo Construction LLC(573) 295-6239TebbettsInstallerLicence expires March 31, 2028
- Matt Kliethermes Excavating LLC(573) 821-5763Jefferson CityInstallerLicence expires March 31, 2028
- Matt Rademan Co LLC(573) 634-8180Jefferson CityInstallerLicence expires March 31, 2028
- McGinnis H-S Septic Service(573) 374-5528VersaillesInstallerLicence expires May 31, 2026
- Michael Moeller Bobcat & Backhoe Service, LLC(573) 619-9551LohmanInstallerLicence expires March 31, 2028
- Mid Missouri Underground LLC(573) 826-7384ColumbiaInstallerLicence expires April 30, 2027
- Mid-Mo Dirtworx and Land Management LLC(573) 789-4158VersaillesInstallerLicence expires January 31, 2026
- Mid-Mo Environmental(573) 636-3921Jefferson CityInstallerLicence expires October 31, 2025
- Midstate Builders(660) 848-3005New FranklinInstallerLicence expires March 31, 2026
- Midwest Outdoor Solutions LLC(573) 616-8865Jefferson CityInstallerLicence expires May 31, 2028
- Mike Riley Construction(573) 317-7916Lake OzarkInstallerLicence expires November 30, 2025
- Milam Contracting(573) 999-0675ColumbiaInstallerLicence expires January 31, 2026
- National Property Inspections COMO(573) 569-9622ColumbiaInstallerLicence expires September 30, 2028
- Nelsons Land and Road Maintenance LLC(573) 310-1454FultonInstallerLicence expires November 30, 2025
- Nontypical Outdoor Solutions(573) 220-8826FultonInstallerLicence expires October 31, 2026
- Null Grading(573) 691-9701jefferson cityInstallerLicence expires May 31, 2028
- On Grade Dirt Works(573) 855-0047Loose CreekInstallerLicence expires June 30, 2026
- Pinky Out Septic(573) 286-9052EldonInstallerLicence expires March 31, 2026
- Post Contract Services(573) 489-2601AshlandInstallerLicence expires October 31, 2026
- Powers Construction LLC.(573) 657-4105HartsburgInstallerLicence expires February 28, 2027
- Pro Pumping & Hydrojetting LLC(573) 474-5489ColumbiaInstallerLicence expires July 31, 2028
- Roettgen Excavating LLC(573) 301-0113New BloomfieldInstallerLicence expires September 30, 2027
- Roger Morris(573) 881-1428AshlandInstallerLicence expires April 30, 2026
- S & A Equipment & Builders(573) 220-3653FultonInstallerLicence expires May 31, 2027
- Sam's Home & Commercial Inspectors(573) 202-6062VichyInstallerLicence expires August 31, 2028
- Sanitary Septic Services(573) 216-4528BarnettInstallerLicence expires August 31, 2028
- Siegel Excavating(573) 544-3493Montgomery CityInstallerLicence expires March 31, 2028
- Skyline Electric(573) 284-9839LathamInstallerLicence expires July 31, 2026
- Smith Excavating LLC(573) 220-0053MokaneInstallerLicence expires August 31, 2027
- SSCC Inc(573) 489-9631AshlandInstallerLicence expires September 30, 2026
- Sublett Trucking LLC(573) 808-5323ClarkInstallerLicence expires May 31, 2027
- Thomas Colter(573) 680-5708Holts SummitInstallerLicence expires May 31, 2027
- Todd McDonald(573) 529-6836Prairie HomeInstallerLicence expires January 31, 2026
- Travis Hodge Hauling LLC(573) 793-6600Lake OzarkInstallerLicence expires April 30, 2026
- Tree Frog Ventures LLC(573) 673-9929AshlandInstallerLicence expires March 31, 2026
- Triple L Excavating LLC(573) 216-6886TuscumbiaInstallerLicence expires July 31, 2028
- Vital Home Inspections LLC(573) 578-7571Jefferson CityInstallerLicence expires December 31, 2027
- Volz Incorporated(314) 890-1264Saint LouisInstallerLicence expires December 31, 2026
- Waste Water Operation & Service, LLC(573) 569-5580VersaillesInstallerSoil evaluatorLicence expires November 30, 2026
- Wendling & Son's(573) 489-7576WoolridgeInstallerLicence expires January 31, 2028
- Wilson Excavating(573) 645-2701MetaInstallerLicence expires October 31, 2027
What “Registered OWTS installer” means in Missouri
Being on this roster means Missouri DHSS has licensed this business for installs onsite wastewater treatment systems. It is not a rating, a review, or a statement about price, insurance or workmanship.
Registrations carry an expiration date, shown on every listing. The state republishes the dataset as registrations change.
Before you hire, confirm the licence with Missouri DHSS, or the state's own published registration data. How to verify →
Registered OWTS installers in neighbouring counties
Records as published August 26, 2026. Report a correction.