Registered OWTS installers in Howard County, Missouri
59 companies on Missouri’s roster of registered onsite wastewater treatment system installers give Howard County as their address. A registered installer is a business the state has licensed for the work that installs onsite wastewater treatment systems.
- 24/7 plumbology(660) 676-3636HuntsvilleInstallerLicence expires January 31, 2027
- Accuro Services,LLC(314) 363-4793WentzvilleInstallerLicence expires December 31, 2027
- Affordable Plumbing Maintenance LLC(660) 621-1812BoonvilleInstallerLicence expires December 31, 2026
- Agee plumbing(660) 651-4701MoberlyInstallerLicence expires September 30, 2027
- All Clear Pumping & Sewer(573) 634-0165CentertownInstallerLicence expires January 31, 2026
- Arthur Ratliff Tree and Stump Removal(573) 446-2266ColumbiaInstallerLicence expires January 31, 2028
- Bio-Gard Inc(573) 442-0692ColumbiaInstallerLicence expires March 30, 2027
- Blacktop, LLC(417) 533-4026LynchburgInstallerLicence expires May 31, 2028
- Brandl's Construction Services LLC(573) 301-7148FultonInstallerLicence expires April 30, 2027
- Brian Wear Plumbing(573) 864-4463ColumbiaInstallerLicence expires May 31, 2028
- C.L. Richardson(573) 682-4452AshlandInstallerLicence expires April 30, 2027
- C&H Septic Service's(660) 263-7901MoberlyInstallerLicence expires July 31, 2026
- Carter Concrete & Excavating(573) 881-6333HarrisburgInstallerLicence expires February 28, 2026
- Central Missouri Home Inspections LLC(573) 289-7077ColumbiaInstallerSoil evaluatorLicence expires April 30, 2026
- Connor Brooks Excavating LLC(573) 999-5490HallsvilleInstallerLicence expires May 31, 2026
- Courtney Construction LLC(417) 926-1479Mountain GroveInstallerLicence expires January 31, 2027
- CW Lillig Contracting(913) 653-3974ColumbiaInstallerLicence expires January 31, 2026
- David Barrett - DBA: A Midwest Backflow Co.(816) 315-7202HarrisonvilleInstallerLicence expires March 31, 2028
- Diversified Excavating LLC(573) 881-0099ColumbiaInstallerLicence expires February 28, 2027
- Double J Excavating(573) 489-3112ClarkInstallerLicence expires January 31, 2026
- Elite Wastewater Solutions LLC(573) 687-7011SturgeonInstallerLicence expires March 31, 2028
- Gallop Excavating LLC(660) 651-8167MadisonInstallerLicence expires May 31, 2028
- GBK Excavating(573) 239-2215SturgeonInstallerLicence expires May 31, 2026
- Good Neighbor Soil Evaluators(443) 567-3536HallsvilleInstallerSoil evaluatorLicence expires January 31, 2026
- 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
- 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
- J.D. Kelly Excavating Inc(573) 808-1606ColumbiaInstallerLicence expires May 31, 2028
- Joe Brooks(573) 530-0124CentraliaInstallerLicence expires September 30, 2027
- K&P Services LLC(816) 854-9091Blue SpringsInstallerLicence expires August 31, 2028
- Korte Excavation(573) 645-4853RussellvilleInstallerLicence expires April 30, 2027
- MasterTech Plumbing(573) 445-7283ColumbiaInstallerLicence expires October 31, 2026
- Mid-MO Complete Septic Services LLC(660) 676-3676MoberlyInstallerLicence expires January 31, 2028
- Midstate Builders(660) 848-3005New FranklinInstallerLicence expires March 31, 2026
- Milam Contracting(573) 999-0675ColumbiaInstallerLicence expires January 31, 2026
- National Property Inspections COMO(573) 569-9622ColumbiaInstallerLicence expires September 30, 2028
- 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
- R.B. Small Excavation LLC(660) 676-9184MoberlyInstallerLicence expires January 31, 2026
- Robbey D Harvey Gen Carpentry(660) 621-1600New FranklinInstallerLicence expires May 31, 2026
- Rock Creek Excavating LLC(660) 631-2376SlaterInstallerLicence expires July 31, 2028
- Roger Morris(573) 881-1428AshlandInstallerLicence expires April 30, 2026
- Russell Sapp Exc(573) 443-4888ColumbiaInstallerLicence expires July 31, 2026
- Sam's Home & Commercial Inspectors(573) 202-6062VichyInstallerLicence expires August 31, 2028
- Seth Paul Excavating, Inc.(573) 999-5509ColumbiaInstallerLicence expires January 31, 2026
- Shay Mechanical(660) 882-2665BoonvilleInstallerLicence expires March 31, 2028
- Staats Excavating(573) 356-1038ColumbiaInstallerLicence expires July 31, 2026
- Sutton Excavating(573) 881-5984SturgeonInstallerLicence expires September 30, 2027
- Terraform Excavation(573) 268-7536ColumbiaInstallerLicence expires May 31, 2026
- Thoma Construction LLC(660) 537-3543ColumbiaInstallerLicence expires February 28, 2027
- Tim Sublett Exc(573) 239-1355HarrisburgInstallerLicence expires June 30, 2027
- Todd McDonald(573) 529-6836Prairie HomeInstallerLicence expires January 31, 2026
- TW Colton Plumbing and Excavating Inc.(573) 808-3518ColumbiaInstallerLicence expires June 30, 2028
- Wendling & Son's(573) 489-7576WoolridgeInstallerLicence expires January 31, 2028
- 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.