GroundRosterLicensed Well and Septic Contractors: Jefferson County, CO
88 licensed well and septic pros based in Jefferson County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against Jefferson County Public Health - List of Licensed OWTS Contractors, Weld County Department of Public Health & Environment, Boulder County Public Health - OWTS Licensed Professionals, Arapahoe County Public Health - OWTS Licensed Installers & Cleaners/Pumpers, El Paso County Public Health - Onsite Wastewater Treatment Systems (OWTS), Colorado DWR - Licensed Drilling & Pump Installation Contractors and Larimer County Department of Health & Environment. Roster copy last refreshed 2026-08-19.
Towns in Jefferson County
All 12 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Jefferson County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 88.
| License class | Trade | Listings |
|---|---|---|
| Licensed OWTS Contractor | Septic | 60 |
| Installer | Septic | 9 |
| Licensed Pump Installer | Well | 9 |
| Licensed OWTS Installer | Septic | 6 |
| Cleaner, Inspector | Septic | 1 |
| Cleaner/Pumper | Septic | 1 |
| Licensed Well Driller | Well | 1 |
| Licensed Well Driller & Pump Installer | Well | 1 |
Septic Contractors based in Jefferson County (77)
Wards ConstructionLicensed
Diamond Contracting CorpLicensed
Eagle Dirt Work LLCLicensed
Endeavor Corp.Licensed
Doone Brothers Sewer And Septic ServicesLicensed
Evergreen Septic Pumping CO.Licensed
Len's Excavating, IncLicensed
Ley Septic LLCLicensed
Mattson ExcavatingLicensed
Rey's Services LLCLicensed
Rey's Services LLCLicensed
J Rauch Excavating INC.Licensed
Cws Excavating LLCLicensed
Art Ketecture by Sunique LTDLicensed
Foothills Septic PumpingLicensed
Matthew HillierLicensed
Rocky Mountain Builders By Anway INCLicensed
Baseline ExcavationLicensed
Berry Trucking & Excavating INC.Licensed
Western Eagle Enterprises, IncLicensed
Doone Brothers Sewer & Septic ServicesLicensed
Shirley Septic Pumping LLCLicensed
Drain Terrier LLCLicensed
Src ExcavationLicensed
W Kuehster ContractorsLicensed
D And A FarmsLicensed
Elk Mountain Excavating LLCLicensed
Plukworks Ltd.Licensed
Blh INC.Licensed
Dykes Excavating, INC.Licensed
Rhino Excavating LLCLicensed
Doone Brothers Sewer and Septic ServicesLicensed
Sayler & Sons Excavating, INC.Licensed
Reetz ExcavatingLicensed
Rob's Cat Service, LLC.Licensed
Alpine Landscaping & Excavating LLCLicensed
Ramstetter Excavating INCLicensed
Hodapp Custom HomesLicensed
Foothills Septic PumpingLicensed
H & S ExcavatingLicensed
J.s. Walton Company, LLCLicensed
Diesel Runners, LLCLicensed
Fox Fire Develpment INCLicensed
Cws Excavating LLCLicensed
Lewis Water & Sewer, INC.Licensed
CWS ExcavatingLicensed
JR Hiller, LLCLicensed
Jake Of All Trades ContractingLicensed
Brinson LLCLicensed
Eddie Stark LLCLicensed
Stinson Dirtwork LLCLicensed
Eddie Stark, LLCLicensed
Afford-a-rooterLicensed
Jake Of All Trades ContractingLicensed
Creative INC.Licensed
Little Elk Enterprises INCLicensed
Western Eagle Enterprises INCLicensed
B & N ExcavatingLicensed
Kd Ramstetter Dirtworks LLCLicensed
A. Moot Point Construction CO.Licensed
Evergreen Excavating & Tree Service, LLCLicensed
Doone Brothers Sewer and Septic ServicesLicensed
Scott-bilt INCLicensed
Leading Edge ExcavationLicensed
Durham Systems LimitedLicensed
Reynaldo SantosLicensed
R & D Pipeline ConstructionLicensed
Snow Bear ConstructionLicensed
H and S ExcavatingLicensed
Randy Fowler CO LLCLicensed
Evergreen Excavating And Tree ServiceLicensed
Highland Siteworks LLCLicensed
Knecht ConstructionLicensed
Tas Engineering LLCLicensed
Pine Grove Excavating INCLicensed
Diesel Runners LLCLicensed
D V Nelson ExcavatingLicensed
Water Well Contractors based in Jefferson County (11)
White Elk Well ServiceLicensed
Spartan Well And Pump Svc, INC.Licensed
Geowater ServicesLicensed
Living Water Pump ServiceLicensed
Sky Country Pump CO INCLicensed
Sky Country Pump CO INCLicensed
Arvada Pump CO. INC.Licensed
Bomareto Pump And Equipment CompaLicensed
Alpine Remediation, INC.Licensed
James DrillingLicensed
Geowater ServicesLicensed
Licensed by Jefferson County
Jefferson County issued these businesses' licenses, but the address on their license record is not in Jefferson County.
A1 Building ConceptsLicensed
Aaark Total Home ServicesLicensed
Ac Pipeline ConstructionLicensed
All Sewer & Plumbing Services LLCLicensed
Apple Realty LLCLicensed
Big Dog ExcavationLicensed
Black Diamond ExcavatingLicensed
Boonstra ExcavationLicensed
Bristlecone ExcavatingLicensed
Brown's Septic Service INC.Licensed
Burbachs Rocky Mountain Excavating LLCLicensed
Cap ExcavatingLicensed
Clear Water Construction LLCLicensed
Cme ConstructionLicensed
Cody's Excavating INCLicensed
Colorado Mini Excavating INCLicensed
Cutting Edge ExcavatingLicensed
Dick Gapter Septic SystemsLicensed
Douglas County Septic INC.Licensed
Doyle Construction INCLicensed
Earl WesthoffLicensed
Evergreen Septic Solutions LLCLicensed
Grapes & Son Excavating INCLicensed
Harold's Excavating Services LLCLicensed
High Country ExcavatingLicensed
High Country ExcavationLicensed
High Performance EarthworksLicensed
Ketter TruckingLicensed
Kloppenberg Excavating INCLicensed
Kremer Construction LLCLicensed
Larry Sterling Excavating INCLicensed
Lpc INCLicensed
Magnum ExcavatingLicensed
Marshall Excavating LLCLicensed
Meyers' Services, LLCLicensed
Molleur Construction, INCLicensed
Mountain Goat ExcavatingLicensed
Petty ExcavatingLicensed
Power Earth LLCLicensed
Rocky Mountain Development LLCLicensed
Search Septic, LLC.Licensed
Septic SolutionsLicensed
Suc N Up, LLCLicensed
We Can Dig It ExcavationLicensed
White's Excavation & TruckingLicensed
Own one of these businesses? Find your listing and claim it.
Looking for a specific contractor? Search by name, business name, or license number.
Services in Jefferson County, with national cost ranges
Listings based in Jefferson County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Jefferson County | National cost |
|---|---|---|
| Septic Tank Pumping | 1 | $250 to $600 |
| Septic System Installation | 15 | $3,600 to $12,500 |
| Septic Inspection | 1 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 0 | $250 to $1,000 |
| Well Drilling | 2 | $5,500 to $35,000 |
| Well Pump Repair | 10 | $1,000 to $2,500 |
None of the listings based in Jefferson County hold a license class we can match to septic system design or perc test and soil evaluation. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in Jefferson County
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
Do I need a permit for well or septic work in Colorado?