GroundRosterLicensed Well and Septic Contractors: Gilpin County, CO
13 licensed well and septic pros based in Gilpin 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, Colorado DWR - Licensed Drilling & Pump Installation Contractors, Boulder County Public Health - OWTS Licensed Professionals, Weld County Department of Public Health & Environment and Larimer County Department of Health & Environment. Roster copy last refreshed 2026-08-19.
Towns in Gilpin County
All 2 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Gilpin 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 13.
| License class | Trade | Listings |
|---|---|---|
| Installer | Septic | 5 |
| Licensed OWTS Contractor | Septic | 4 |
| Licensed OWTS Installer | Septic | 2 |
| Inspector | Septic | 1 |
| Licensed Well Driller & Pump Installer | Well | 1 |
Septic Contractors based in Gilpin County (12)
Black Diamond ExcavatingLicensed
Mountain Contracting, LLCLicensed
Meyers ServicesLicensed
Larry Sterling Excavating INCLicensed
Black Diamond ExcavatingLicensed
Meyers' Services, LLCLicensed
Moutain Contracting, LLCLicensed
Grapes & Son Excavating INCLicensed
Grapes & Sons Excavating, IncLicensed
Hardt's Backhoe ServiceLicensed
Black Diamond Excavating LLCLicensed
Black Diamond ExcavatingLicensed
Water Well Contractors based in Gilpin County (1)
C R Smith Drilling INCLicensed
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 Gilpin County, with national cost ranges
Listings based in Gilpin County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Gilpin County | National cost |
|---|---|---|
| Septic Tank Pumping | 0 | $250 to $600 |
| Septic System Installation | 7 | $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 | 1 | $5,500 to $35,000 |
| Well Pump Repair | 1 | $1,000 to $2,500 |
None of the listings based in Gilpin County hold a license class we can match to septic tank pumping, 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 Gilpin 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?