Registered OWTS installers in Callaway County, Missouri
119 companies on Missouri’s roster of registered onsite wastewater treatment system installers give Callaway County as their address. A registered installer is a business the state has licensed for the work that installs onsite wastewater treatment systems.
- Accurate Bobcat Service(573) 387-4373AuxvasseInstallerLicence expires March 31, 2028
- Accuro Services,LLC(314) 363-4793WentzvilleInstallerLicence expires December 31, 2027
- 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
- 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
- Benchmark Excavating LLC(636) 734-5198ForistellInstallerLicence expires July 31, 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
- Brandl's Construction Services LLC(573) 301-7148FultonInstallerLicence expires April 30, 2027
- Brookside General Contracting(573) 999-9337AuxvasseInstallerLicence expires January 31, 2028
- 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.Taylor Contracting LLC(636) 584-9077HermannInstallerLicence expires March 31, 2028
- Carman Resources(573) 692-4939EldonInstallerLicence expires January 31, 2028
- Carpenter Earthworks LLC(573) 353-2530CaliforniaInstallerLicence expires September 30, 2028
- Carter Concrete & Excavating(573) 881-6333HarrisburgInstallerLicence expires February 28, 2026
- Castle Custom Homes(573) 356-1050ColumbiaInstallerLicence expires September 30, 2026
- 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
- Connor Brooks Excavating LLC(573) 999-5490HallsvilleInstallerLicence expires May 31, 2026
- Corey Myers Construction LLC(573) 825-4026AshlandInstallerLicence expires November 30, 2026
- Courtney Construction LLC(417) 926-1479Mountain GroveInstallerLicence expires January 31, 2027
- Curt's Construction(573) 826-0344FultonInstallerLicence expires March 31, 2028
- Cutting Edge Excavating LLC(660) 676-9774CentraliaInstallerLicence expires May 31, 2026
- CW Lillig Contracting(913) 653-3974ColumbiaInstallerLicence expires January 31, 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
- Digging Plus LLC(573) 590-3584New BloomfieldInstallerLicence expires March 31, 2026
- Diversified Excavating LLC(573) 881-0099ColumbiaInstallerLicence expires February 28, 2027
- Donaldson Excavating(573) 473-5575MexicoInstallerLicence expires October 31, 2025
- Doug Briot Bobcat Service Landscaping Co(573) 690-7411HenleyInstallerLicence expires August 31, 2026
- Elite Wastewater Solutions LLC(573) 687-7011SturgeonInstallerLicence expires March 31, 2028
- Exact Excavation LLC(573) 489-8152AuxvasseInstallerLicence expires March 31, 2027
- Fischer Excavating LLC(636) 237-3370TruxtonInstallerLicence expires February 29, 2028
- Fleer Excavating(636) 900-1772HermannInstallerLicence expires July 31, 2028
- Flowmaster Construction LLC(573) 581-1004MexicoInstallerLicence expires September 30, 2028
- Foiles Trucking LLC(618) 410-3669JerseyvilleInstallerLicence expires May 31, 2027
- Gallop Excavating LLC(660) 651-8167MadisonInstallerLicence expires May 31, 2028
- Gilbert & Sons Construction Inc(573) 564-3694Montgomery CtiyInstallerLicence expires January 31, 2027
- 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
- H & H Construction(660) 291-8522MadisonInstallerLicence expires October 31, 2025
- Hackmann Trenching & Backhoe LLC(573) 694-2169ChamoisInstallerLicence expires April 30, 2027
- Hardcore Excavating(573) 356-9930BoonvilleInstallerLicence expires May 31, 2027
- Haskamp Excavation(573) 825-3878RocheportInstallerLicence expires May 31, 2026
- Haskamp Excavation(573) 825-3878ColumbiaInstallerLicence expires May 31, 2028
- Henry Excavating(573) 466-6016AuxvasseInstallerLicence expires February 28, 2028
- Honest Abe’s(573) 514-8146EldonInstallerLicence expires January 31, 2026
- Honest Abe's Home Services(573) 286-7540Osage BeachInstallerLicence expires November 30, 2025
- Imhoff Dozing & TrenchingInstallerLicence expires June 30, 2027
- Integrity Earthworks LLC(573) 220-3507FultonInstallerLicence expires September 30, 2026
- J.D. Kelly Excavating Inc(573) 808-1606ColumbiaInstallerLicence expires May 31, 2028
- Jody Schmidt Well & Sewer Service(636) 262-1054New MelleInstallerLicence expires January 31, 2026
- K&P Services LLC(816) 854-9091Blue SpringsInstallerLicence expires August 31, 2028
- KC Land & Lawn(636) 359-5126WarrentonInstallerLicence expires August 31, 2028
- Kennett Exc(573) 826-8728ColumbiaInstallerLicence expires April 30, 2026
- Kleinsorge Construction LLC(573) 473-8893MexicoInstallerLicence expires August 31, 2028
- Korte Excavation(573) 645-4853RussellvilleInstallerLicence expires April 30, 2027
- 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
- MasterTech Plumbing(573) 445-7283ColumbiaInstallerLicence expires October 31, 2026
- Matt Kliethermes Excavating LLC(573) 821-5763Jefferson CityInstallerLicence expires March 31, 2028
- Matt Rademan Co LLC(573) 634-8180Jefferson CityInstallerLicence expires March 31, 2028
- Meyerott Enterprises, LLC(636) 485-1215St. CharlesInstallerLicence expires May 31, 2028
- 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's Septic & Dirtwork LLC(636) 295-0465FoleyInstallerLicence expires May 31, 2028
- 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
- Nick Garrett Digging & Grading LLC(314) 852-7658JonesburgInstallerLicence expires January 31, 2028
- Post Contract Services(573) 489-2601AshlandInstallerLicence expires October 31, 2026
- Powers Construction LLC.(573) 657-4105HartsburgInstallerLicence expires February 28, 2027
- Rick Richardson Excavating(573) 356-3602HartsburgInstallerLicence expires May 31, 2028
- Roger Morris(573) 881-1428AshlandInstallerLicence expires April 30, 2026
- Russell Sapp Exc(573) 443-4888ColumbiaInstallerLicence expires July 31, 2026
- S & A Equipment & Builders(573) 220-3653FultonInstallerLicence expires May 31, 2027
- Sam's Home & Commercial Inspectors(573) 202-6062VichyInstallerLicence expires August 31, 2028
- Semke Grading and Pipe(636) 250-4225Saint CharlesInstallerLicence expires May 31, 2028
- Seth Paul Excavating, Inc.(573) 999-5509ColumbiaInstallerLicence expires January 31, 2026
- Siegel Excavating(573) 544-3493Montgomery CityInstallerLicence expires March 31, 2028
- Skyline Electric(573) 284-9839LathamInstallerLicence expires July 31, 2026
- Smith Septic(636) 359-6346Montgomery CityInstallerLicence expires November 30, 2025
- SSCC Inc(573) 489-9631AshlandInstallerLicence expires September 30, 2026
- Staats Excavating(573) 356-1038ColumbiaInstallerLicence expires July 31, 2026
- Sublett Trucking LLC(573) 808-5323ClarkInstallerLicence expires May 31, 2027
- Sutton Excavating(573) 881-5984SturgeonInstallerLicence expires September 30, 2027
- Terraform Excavation(573) 268-7536ColumbiaInstallerLicence expires May 31, 2026
- Thomas Colter(573) 680-5708Holts SummitInstallerLicence expires May 31, 2027
- Tim Sublett Exc(573) 239-1355HarrisburgInstallerLicence expires June 30, 2027
- Todd McDonald(573) 529-6836Prairie HomeInstallerLicence expires January 31, 2026
- Tree Frog Ventures LLC(573) 673-9929AshlandInstallerLicence expires March 31, 2026
- TW Colton Plumbing and Excavating Inc.(573) 808-3518ColumbiaInstallerLicence expires June 30, 2028
- Twitchell Backhoe Service(573) 220-8702FultonInstallerLicence expires June 30, 2028
- Vital Home Inspections LLC(573) 578-7571Jefferson CityInstallerLicence expires December 31, 2027
- Volz Incorporated(314) 890-1264Saint LouisInstallerLicence expires December 31, 2026
- Wendling & Son's(573) 489-7576WoolridgeInstallerLicence expires January 31, 2028
- Whalen Services, LLC(573) 220-2471AuxvasseInstallerLicence expires September 30, 2028
- Wilson Excavating(573) 645-2701MetaInstallerLicence expires October 31, 2027
- Wood Unlimited(573) 443-7106ColumbiaInstallerLicence expires November 30, 2025
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.