Registered OWTS installers in Montgomery County, Missouri
81 companies on Missouri’s roster of registered onsite wastewater treatment system installers give Montgomery County as their address. A registered installer is a business the state has licensed for the work that installs onsite wastewater treatment systems.
- 3T Plumbing LLC(573) 291-5120RosebudInstallerLicence expires January 31, 2026
- A & M Contracting Services LLC(636) 359-7917WarrentonInstallerLicence expires September 30, 2027
- A R C Grading, LLC(636) 290-5419Moscow MillsInstallerLicence expires November 30, 2025
- Accuro Services,LLC(314) 363-4793WentzvilleInstallerLicence expires December 31, 2027
- Affordable Plumbing LLC(314) 971-3063HermannInstallerLicence expires January 31, 2028
- All American Septic(636) 970-9192WentzvilleInstallerLicence expires March 31, 2026
- American Htg/Clg/Elect/Plbg(573) 384-5803SilexInstallerLicence expires December 31, 2025
- Authority Plumbing and Drain(314) 220-6519WarrentonInstallerLicence expires May 31, 2027
- B Green Plumbing & Drain Cleaning LLC(314) 604-5000WarrentonInstallerLicence expires June 30, 2026
- B&J Septic(573) 384-5536SilexInstallerLicence expires March 31, 2027
- Barry Maupin Excavating, Inc(573) 642-9348FultonInstallerLicence expires April 30, 2026
- Big D Pipe LLC(636) 399-7495St CharlesInstallerLicence expires May 31, 2028
- Billy Orf & Sons(573) 470-6269Bowling GreenInstallerLicence expires May 31, 2026
- Bio-Gard Inc(573) 442-0692ColumbiaInstallerLicence expires March 30, 2027
- Blackwood Plumbing(636) 359-5622WarrentonInstallerLicence expires May 31, 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
- C.Taylor Contracting LLC(636) 584-9077HermannInstallerLicence expires March 31, 2028
- Carter Backhoe(636) 980-6115WentzvilleInstallerLicence expires January 31, 2026
- Chartette Creek Excavating LLC(636) 390-3811MarthasvilleInstallerLicence expires December 31, 2027
- clubbs home remodeling(636) 228-3422ofallonInstallerLicence expires October 31, 2026
- Courtney Construction LLC(417) 926-1479Mountain GroveInstallerLicence expires January 31, 2027
- Creason Contracting LLC(636) 528-3609TroyInstallerLicence expires April 30, 2026
- CSO Environmental Services, Inc(217) 522-4085SpringfieldInstallerLicence expires March 31, 2027
- Curt's Construction(573) 826-0344FultonInstallerLicence expires March 31, 2028
- Custom Power Excavating, Inc(573) 774-7155RosebudInstallerLicence expires June 30, 2028
- Dale Brower Custom Digging(573) 929-3985BellflowerInstallerLicence expires October 31, 2025
- Dempsey Investment LLC(636) 235-8181JonesburgInstallerLicence expires May 31, 2028
- Dobsch Construction LLC(314) 520-6282WashingtonInstallerLicence expires May 31, 2027
- Donald R Counts(573) 656-3234MiddletownInstallerLicence expires December 31, 2026
- Donaldson Excavating(573) 473-5575MexicoInstallerLicence expires October 31, 2025
- Elbert Earthworks(636) 432-3508BergerInstallerLicence expires December 31, 2027
- 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
- Flynn Drilling Co(636) 528-6137TroyInstallerLicence expires November 30, 2025
- Garrett Concrete & Const. Inc(636) 384-6139Wright CityInstallerLicence expires July 31, 2028
- Gilbert & Sons Construction Inc(573) 564-3694Montgomery CtiyInstallerLicence expires January 31, 2027
- Greater Missouri Homes LLC(636) 667-2461AugustaInstallerLicence expires May 31, 2026
- H.S. Plumbing LLC(314) 503-3416TroyInstallerLicence expires June 30, 2026
- Hackmann Trenching & Backhoe LLC(573) 694-2169ChamoisInstallerLicence expires April 30, 2027
- Henry Excavating(573) 466-6016AuxvasseInstallerLicence expires February 28, 2028
- Ice Services LLC(636) 841-8688Warner RobinsInstallerLicence expires January 31, 2028
- Integrity Earthworks LLC(573) 220-3507FultonInstallerLicence expires September 30, 2026
- J-L Page Excavation(573) 690-0326RhinelandInstallerLicence expires June 30, 2027
- Jake's Backhoe and Construction(573) 619-9703HermannInstallerSoil evaluatorLicence expires March 31, 2028
- Jeff Roderfeld Const. LLC(636) 459-1706St. CharlesInstallerLicence expires July 30, 2028
- K&P Services LLC(816) 854-9091Blue SpringsInstallerLicence expires August 31, 2028
- KC Land & Lawn(636) 359-5126WarrentonInstallerLicence expires August 31, 2028
- Kleinsorge Construction LLC(573) 473-8893MexicoInstallerLicence expires August 31, 2028
- LHS Hauling & Grading(636) 297-7063WarrentonInstallerLicence expires April 30, 2027
- M Turpin Services LLC(636) 262-6230Wright CityInstallerLicence expires February 28, 2026
- Meyerott Enterprises, LLC(636) 485-1215St. CharlesInstallerLicence expires May 31, 2028
- Mick Mehler and Sons, Inc(573) 384-5978SilexInstallerLicence expires May 31, 2027
- Mid Missouri Underground LLC(573) 826-7384ColumbiaInstallerLicence expires April 30, 2027
- Mike Henry Excavating, LLC(636) 775-0811SilexInstallerLicence expires June 30, 2028
- Mike's Septic & Dirtwork LLC(636) 295-0465FoleyInstallerLicence expires May 31, 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
- O'Brien Construction & Excavation(573) 898-5539ElsberryInstallerLicence expires April 30, 2028
- Orf Construction Inc(573) 324-3552Bowling GreenInstallerLicence expires March 31, 2026
- Poeling Construction(636) 463-2437ForistellInstallerLicence expires April 30, 2026
- Reliable Septic & Portable Toilet(573) 239-0280HermannInstallerLicence expires September 30, 2027
- Roger Morris(573) 881-1428AshlandInstallerLicence expires April 30, 2026
- Rust Construction LLC(636) 745-3426InnsbrookInstallerLicence 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
- Second Nature Excavation and Hardscapes(573) 694-8696New HavenInstallerLicence expires March 31, 2028
- Siegel Excavating(573) 544-3493Montgomery CityInstallerLicence expires March 31, 2028
- Smith Excavating LLC(573) 220-0053MokaneInstallerLicence expires August 31, 2027
- Smith Septic(636) 359-6346Montgomery CityInstallerLicence expires November 30, 2025
- Starks Excavating LLC(636) 359-5022WarrentonInstallerLicence expires November 30, 2025
- Turnbull Contracting, LLC(573) 324-6922Bowling GreenInstallerLicence expires March 31, 2028
- Twitchell Backhoe Service(573) 220-8702FultonInstallerLicence expires June 30, 2028
- United Property ServicesInstallerLicence expires September 30, 2026
- Volz Incorporated(314) 890-1264Saint LouisInstallerLicence expires December 31, 2026
- Wehmeyer Farm(636) 368-8264Moscow MillsInstallerLicence expires August 31, 2027
- Whalen Services, LLC(573) 220-2471AuxvasseInstallerLicence expires September 30, 2028
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.