Licensed septic companies in Montgomery County, Missouri
100 businesses on Missouri’s septic licensing records give Montgomery County as its address, alongside 2 individually licensed onsite professionals.
81 registered owts installers →20 registered onsite soil evaluators →2 registered onsite wastewater professionals →
Licensed businesses based in Montgomery County
- 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
- Accurate Septic & Well Inspections(636) 262-1303St CharlesSoil evaluatorLicence expires August 31, 2028
- 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
- All Missouri Soils, LLC(573) 268-6482ColumbiaSoil evaluatorLicence expires November 30, 2027
- 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
- Benjamin Mocarski(630) 699-2435ColumbiaSoil evaluatorLicence expires May 31, 2028
- 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
- BPG Inspections(800) 285-3001St. LouisSoil evaluatorLicence expires September 30, 2028
- 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
- Cmis(573) 694-1404Jefferson CitySoil evaluatorLicence expires March 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
- Doll Environmental Services(573) 418-5488TebbettsSoil evaluatorLicence expires June 30, 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
- Elijah's Brook, Inc(573) 541-7645TaylorSoil evaluatorLicence expires March 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
- Flynn Drilling Co(636) 528-6137TroyInstallerLicence expires November 30, 2025
- Gaines Soil Consulting(636) 947-1221WordenSoil evaluatorLicence expires March 31, 2026
- Garrett Concrete & Const. Inc(636) 384-6139Wright CityInstallerLicence expires July 31, 2028
- Garrett Concrete & Constr Inc.(636) 384-6139Wright CitySoil evaluatorLicence expires August 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
- Green Acres Septic Tank Service(573) 529-6706WilliamsburgSoil evaluatorLicence expires March 31, 2026
- H.S. Plumbing LLC(314) 503-3416TroyInstallerLicence expires June 30, 2026
- Hackmann Trenching & Backhoe LLC(573) 694-2169ChamoisInstallerLicence expires April 30, 2027
- Harwood Environmental Services(314) 695-2364St. LouisSoil evaluatorLicence expires March 31, 2026
- Henry Excavating(573) 466-6016AuxvasseInstallerLicence expires February 28, 2028
- Home & Farm Soil Consulting(573) 237-5081New HavenSoil evaluatorLicence expires October 31, 2025
- 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
- JCTB Inspections(636) 293-3710EoliaSoil evaluatorLicence expires July 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
- Kelley Soil ServicesSoil evaluatorLicence expires March 31, 2026
- Kerry M. Clark(660) 351-4696New BloomfieldSoil evaluatorLicence expires April 30, 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
- M.H. Inspection Services L.L.C(573) 721-3816PerrySoil evaluatorLicence expires December 31, 2027
- 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
- NPI Missouri Inc (National Property Inspections)(636) 940-1005St CharlesSoil evaluatorLicence expires June 30, 2028
- O'Brien Construction & Excavation(573) 898-5539ElsberryInstallerLicence expires April 30, 2028
- On-Site Soils(888) 878-1461ChesterfieldSoil evaluatorLicence expires June 30, 2026
- On-Site Soils(314) 341-3888ChesterfieldSoil evaluatorLicence expires March 31, 2026
- 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
Individually licensed onsite professionals in Montgomery County
Missouri licenses people as well as companies. These are the named professionals the state has licensed, listed with the licence they hold and when it expires. They are usually employed by one of the businesses above.
| Name | Licence | City | Expires |
|---|---|---|---|
| Leighton Vaughn | Advanced InstallerNo. 38204 | Silex | November 30, 2027 |
| Trevor Wright | Basic InstallerNo. 38902 | — | September 30, 2026 |
Who handles septic permits in Montgomery County
Missouri registers the individual installer and records the counties they serve. Your local health authority permits the system itself, and in some counties runs its own additional requirements on top.
Licensed companies in neighbouring counties
A Missouri septic licence is valid statewide, so a company listed in an adjoining county can legally do the work in Montgomery County.
Records as published August 26, 2026. A licence can lapse at any time — confirm with Missouri DHSS, or the state's own published registration data before hiring. Report a correction.