Licensed Septic Professionals
Work that Requires a Licensed Professional
- Full system installation
- Soil treatment area (STA) replacement
- Tank replacement
- Lift Station replacement
- D-box replacement
If you would like to install a system yourself, you must obtain an OWTS installers license.
Professionals on this List
This list of resources is intended to assist you throughout the permitting process for your septic system. Please call Boulder County Public Health at 303-441-1564 with any questions.
Tips for Using the Table Below
Please click on any of the heading columns below to sort by:
- Type of professional
- City
- Name of company
Licensed Septic Professionals
| Type of Professional | Company Name | Phone | City | Contact Name |
|---|---|---|---|---|
| Inspectors | Max Yeager | (303) 449-0454 | Boulder | Max Yeager |
| Engineers | William Young | (303) 604-2986 | Erie | - |
| Engineers | Sheila Cross | (719) 836-9669 | Buena Vista | - |
| Engineers | Advanced Prof. Engineering | (970) 484-0533 | Ft. Collins | - |
| Engineers | All Service Septic | (303) 908-7823 | Arvada | Richard Petz |
| Engineers | American Geotechnical, Inc | (303) 817-6661 | Littleton | Dave Beasley |
| Engineers | Anderson & Hastings | (303) 433-8486 | Lakewood | Jim Hastings |
| Engineers | Andrew Marner | (303) 933-4692 | Littleton | Andy |
| Engineers | Armfield Engineering, Inc | (720) 363-7125 | Longmont | Kenneth Armfield |
| Engineers | Bluefin U.S., Inc | (303) 440-9300 | Boulder | Robert Nauman |
| Engineers | Bornengineering | (303) 426-1731 | Westminster | Lana Stoppel |
| Engineers | Carrick Engineering Corporation | (303) 622-9607 | Strasburg | Jonathan Carrick |
| Engineers | CRE Design Engineerign | (303) 688-5151 | Castle Rock | Andy Jesik |
| Engineers | CDS Engineering Corporation | (970) 667-8010 | Loveland | Kevin Becker |
| Engineers | CES Consultants, LLC | (970) 373-4480 | Johnstown | Kurt Rollin |
| Engineers | Church Onsite Wastewater Consultants | (720) 898-3434 | Golden | Kate Carney |
| Engineers | Rocky Mountain Group | (719) 488-2145 | Monument | Tom Cope & Matt Meier |
| Engineers | Colorado Geoscience & Design | (303) 688-2150 | Franktown | Michael J. Ballou |
| Engineers | Complete Engineering Services | (303) 279-6418 | Golden | Edward D. Ford |
| Engineers | Cornerstone Engr. & Surveying | (970) 585-2458 | Estes Park | Michael Todd |
| Engineers | CTL/Thompson | (970) 206-9455 | Ft. Collins | Chip Leadbetter |
| Engineers | ESEC, Inc | (303) 888-0744 | Parker | Ronald Huffman |
| Engineers | Hollingsworth Associates, Inc | (303) 781-5188 | Sheridan | Tom Hollingsworth |
| Engineers | Ikeler Engineering, LLC | (303) 258-8604 | Blackhawk | Mike Ikeler |
| Engineers | TCS | (970) 420-6726 | Berthoud | Thomas Strizki |
| Engineers | Investigative Engineers & Geologists | (303) 619-7973 | Golden | Samuel Urton David Cushman |
| Engineers | JR Engineering, Ltd | (303) 740-9393 | Englewood | V. Hernandez |
| Engineers | JVA, Inc | (303) 564-4974 | Denver | Simon Farrell |
| Engineers | KC Hamilton Eng., Inc | (303) 733-4702 | Denver | Ken Hamilton |
| Engineers | Kiva Engineering, Inc | (970) 663-0138 | Loveland | Bill Mitzelfeld |
| Engineers | Knechtel Engineering., Ltd | (303) 772-3020 | Longmont | Win Knechtel |
| Engineers | Kordziel Engineering, Inc | (303) 216-1919 | Golden | Joe Kordziel |
| Engineers | Landmark Engineering | (970) 667-6286 | Loveland | Rod Harr |
| Engineers | Quality Engineering, LLC | (970) 416-7891 | Ft. Collins | Cody Geisendorfer |
| Engineers | Palumbo, Francis | (303) 246-3824 | Longmont | Francis Palumbo |
| Engineers | Pickering, Cole & Hivner | (303) 996-2999 | Westminster | Andrew J. Garner |
| Engineers | Richard Walters | (970) 226-8744 | Fort Collins | |
| Engineers | SCG Enterprises, Inc | (303) 619-2158 | Conifer | Roger Shafer |
| Engineers | Substrata, LLC | (970) 535-6144 | Loveland | Josh Schmidt |
| Engineers | STRUXURE | (303) 258-7441 | Blackhawk | Kathryn Langdon |
| Engineers | Thomas Hoh, PE | (303) 449-2590 | Boulder | |
| Engineers | Timberline Engineering | (303) 868-3752 | Carbondale | David Powell |
| Engineers | Van Horn Engineering & Survey | (970) 586-9388 | Estes Park | |
| Engineers | Wayne Wentworth | (303) 775-7962 | Longmont | |
| Engineers | Western Engr. Consultants | (720) 685-9951 | Brighton | Chad Cox |
| Engineers | Wilkinson Engineering | (303) 499-6755 | Longmont | William Wilkinson |
| Engineers | Jeffrey D Block, PE & Associates, Inc | (208) 699-0080 | Boulder | Jeffrey D Block |
| Cleaners | Johnston Sanitation, LLC | (970) 667-5405 | Loveland | Evan & Denise Welting |
| Cleaners | Sullivan Septic, LLC | (303) 772-4019 | Longmont | Kevin Sullivan |
| Cleaners | Air-O-Pure | (303) 258-3597 | Nederland | Hillary Kysar |
| Installers | Ackerman's Excavation | (303) 747-2548 | Lyons | George Ackerman |
| Installers | Gapter Septic System & Excavating | (303) 666-6404 | Erie | Greg Gapter |
| Installers | Marshal Fike | (303) 808-5683 | Jamestown | Marshal Fike |
| Installers | Sullivan Septic, LLC | (303) 772-4019 | Longmont | Kevin Sullivan |
| Installers | The Excavator | (303) 818-6071 | Longmont | William Sivy |
| Installers | Triple R Backhoe, Inc | (970) 587-6424 | Milliken | Robert G Ribble |
| Installers | Western Eagle Enterprises, Inc | (303) 642-0757 | Golden | Steven Orloff |
| Installers | Yeager Excavating | (303) 449-0454 | Boulder | Max Yeager |
| Inspectors | Sullivan Septic, LLC | (303) 772-4019 | Longmont | Cindy Sullivan |
| Inspectors | Sullivan Septic, LLC | (303) 772-4019 | Longmont | Kevin Sullivan |
| Engineers | Jeff Davis Engineering, LLC | (303) 674-2224 | Evergreen | Jeff J. Davis |
| Installers | Tundra Septic &Excavating | (303) 747-1013 | Allenspark | Joanna L. Goud |
| Engineers | Alliance Consulting | (720) 625-1571 | Arvada | David E Moore |
| Engineers | Alles Taylor & Duke, LLC | (970) 330-0308 | Evans | Mark A Taylor |
| Installers | Cap Excavating | (303) 772-2279 | Longmont | Kyle Braly |
| Installers | Hel-Digger Water & Sewer, LLC | (303) 619-4397 | Henderson | Rob Helvig |
| Installers | Nixcavating, Inc | (303) 776-8898 | Longmont | R. Scott Nix |
| Engineers | 5280 Septic, LLC | (303) 437-1027 | Denver | Annette Martin |
| Engineers | Earth Engineering, Inc | (970) 775-2004 | Windsor | Michael J. Coley |
| Cleaners | NoCo Septic, Inc | (720) 899-8749 | Longmont | Scott Kapala |
| Inspectors | NoCo Septic, Inc | (720) 899-8749 | Longmont | Scott Kapala |
| Installers | Grein Excavating, LLC | (303) 659-5295 | Brighton | Michael Grein |
| Installers | High Altitude Backhoe Services | (303) 459-0478 | Ward | Jesse Farmer |
| Installers | NoCo Septic, Inc | (720) 899-8749 | Longmont | Scott Kapala |
| Engineers | Insight Engineering, Inc | (303) 929-4272 | Evergreen | Drew Schneider |
| Engineers | Amec Foster Wheeler | (303) 975-2195 | Denver | Raymond D Hamilton |
| Installers | Mountain Island Construction | (303) 588-4165 | Nederland | David Taylor |
| Inspectors | Sullivan Septic, LLC | (303) 772-4019 | Longmont | Cody Lehl |
| Inspectors | Sullivan Septic, LLC | (303) 772-4019 | Longmont | Krystal Lehl |
| Inspectors | Tundra Septic & Excavating | (303) 747-1013 | Allenspark | Joanna L. Goud |
| Installers | Bioterra Constructors | (303) 579-3569 | Boulder | Philip Hollimon |
| Engineers | Sorensen Engineering & Construction, LLC | (970) 590-1579 | Ft Collins | Paul Sorensen |
| Installers | Next Level Excavation, LLC | (970) 215-4444 | Estes Park | Scott Miller |
| Installers | Cap Excavating, Inc | (303) 772-2279 | Longmont | Dylan Braly |
| Installers | Black Diamond Excavating | (303) 601-4216 | Black Hawk | Steven Grapes |
| Installers | High Plains Excavation & Haulin | (970) 308-4666 | Estes Park | Wendy Adams |
| Installers | Jones Excavating & Plumbing | (970) 532-2620 | Berthoud | Josh Jones |
| Installers | Upland Construction & Development, LLC | (303) 641-7510 | Boulder | Alex Nelson |
| Installers | Afford-A-Rooter | (303) 269-1168 | Westminster | Zac Harvey |
| Inspectors | Afford-A-Rooter | (303) 269-1168 | Westminster | Zac Harvey |
| Inspectors | Jones Excavating & Plumbing | (970) 532-2620 | Berthoud | Josh Jones |
| Installers | Boonstra Excavation, LLC | (970) 278-6151 | Loveland | Stephen Boonstra |
| Inspectors | Suc N Up, LLC | (303) 641-7675 | Longmont | Craig Cheney |
| Engineers | Sunshine Engineers, LLC | (720) 248-7434 | Boulder | William Close |
| Cleaners | Black Diamond Pumping | (303) 720-0401 | Ft Lupton | Bradley Billinger |
| Inspectors | Black Diamond Pumping | (303) 720-0401 | Ft Lupton | Bradley Billinger |
| Cleaners | Suc N Up, LLC | (303) 641-7675 | Longmont | Craig Cheney |
| Installers | Gopher Excavation, Inc | (970) 532-1112 | Berthoud | William Suits |
| Installers | Mountain View Construction of Estes Park | (303) 747-2248 | Allenspark | Brian Donahue |
| Installers | Haystack Custom Ag.& Septic Service, LLC | (303) 827-4988 | Longmont | Kyle Rovnak |
| Installers | Hardt's Backhoe Service | (303) 589-9354 | Rollinsville | Chris Hardt |
| Installers | Power Earth | (303) 449-7014 | Boulder | Chris Loven |
| Installers | High Performance Earthworks | (720) 514-9817 | Nederland | Jesse Seavers |
| Inspectors | Foothills Septic Pumping | (303) 670-3160 | Golden | Nathaniel Waters |
| Cleaners | Foothills Septic Pumping | (303) 670-3160 | Golden | Victor Juarez |
| Inspectors | Colorado Septic | (720) 514-9703 | Nederland | Robert Broadwell |
| Cleaners | Colorado Septic | (720) 514-9703 | Nederland | Robert Broadwell |
| Cleaners | Gapter Septic Pumping & Services, LLC | (303) 506-1593 | Boulder | Collin Gapter |
| Inspectors | Gapter Septic Pumping & Services, LLC | (303) 506-1593 | Boulder | Collin Gapter |
| Installers | Lion Home Service | (970) 556-0544 | Ft Collins | Mark Lancaster |
| Inspectors | Lion Home Service | (970) 556-0544 | Ft Collins | Mark Lancaster |
| Cleaners | Lion Home Service | (970) 556-0544 | Ft Collins | Mark Lancaster |
| Installers | CWS Excavating | (303) 243-2298 | Boulder | Matthew Morgan |
| Installers | RST Services, LLC | (720) 346-8279 | Longmont | Tucker Pattridge |
| Installers | Len's Excavating, Inc | (303) 956-1305 | Arvada | Justin Cole |
| Installers | Mountain Contracting, LLC | (303) 888-3580 | Black Hawk | Matt Tarpill |
| Engineers | Innovative Process Engineering, PLLC | (720) 775-0076 | Monument | Ronald P LeBlanc |
| Engineers | GeoMet Engineering, Inc | (209) 712-2168 | Boulder | Ryne Mettler |
| Engineers | RMG Engineers | (719) 434-5638 | Colorado Springs | David G Walker |
| Installers | Hastings Brothers Construction | (303) 907-7861 | Denver | Seth Sutton |
| Installers | Meyers Services | (720) 431-8730 | Black Hawk | Jeramy Meyers |
| Installers | Grapes & Sons Excavating, Inc | (303) 582-1131 | Black Hawk | Holly Grapes |
| Installers | Affordable Home Services | (970) 673-6025 | Timnath | Jacob Smyth |
| Installers | Eddie Stark, LLC | (720) 641-0393 | Wheat Ridge | Eddie Stark |
| Installers | American Sewer and Utilities | (970) 420-5086 | Loveland | Eric Hopkins |
| Installers | Big Dog Excavation, Inc | (970) 576-9961 | Kersey | Mana Kaia |
| Cleaners | Afford-A-Rooter | (303) 269-1168 | Westminster | Zac Harvey |
| Inspectors | Suc N Up, LLC | (720) 289-6210 | Longmont | Mary Meyers |
| Installers | Evergreen Excavating & Tree Service, LLC | (720) 272-4695 | Evergreen | Todd Hanson |
| Installers | Stinson Dirtwork | (720) 588-3478 | Lakewood | David Stinson |
| Inspectors | Suc N Up, LLC | (720) 289-6210 | Longmont | Lacey Walker |
| Installers | Dusty's Dirtworks, LLC | (970) 749-1903 | Windsor | Dusty Neil |
| Installers | Wayne's Dirt Work, Inc | (970) 222-4357 | Bellvue | Wayne Kontz |
| Installers | A Perfect Flush DBA Suc N Up, LLC | (720) 289-6210 | Longmont | Craig Cheney |
| Engineers | 285 Engineering, Inc | (720) 515-1781 | Conifer | Jennifer Migliorato |
| Engineers | Hydroecologic Engineering | (720) 757-4944 | Boulder | Brian Caruso |
| Installers | Septic Solutions | (720) 705-9686 | Thornton | Nathaniel Detwiler |
| Installers | Casey Russell | (720) 334-3750 | Boulder | Casey Russell |
| Installers | Double S Enterprises, LLC | (303) 408-7776 | Broomfield | Jed Schwegman |
| Inspectors | Double S Enterprises, LLC | (303) 408-7776 | Broomfield | Jed Schwegman |
| Installers | Kennedy Plumbing, Inc | (303) 710-1417 | Bennett | Greg Kennedy |
| Installers | Hatrock Excavating | (720) 771-2353 | Lyons | Steve McCain |
| Installers | Diesel Runners, LLC | (720) 648-4931 | Golden | Sanborn Brown |
| Installers | Jordan Ventures, Inc | (970) 261-6176 | Grand Junction | Jon Jordan |
| Installers | Gilpin Earthworks | (720) 383-8253 | Nederland | Macauley Spandl |
| Cleaners | Affordable Home Services | (970) 673-6025 | Greeley | Jacob Smyth |
| Installers | All Around Septic & Drains | (970) 815-2090 | Fort Morgan | Michael Souther |
| Installers | Creative Custom Renovations | (720) 934-4239 | Longmont | Aaron Sorensen |
| Engineers | XEG | (970) 485-8702 | Castle Rock | Pablo Bolanos Gamboa |
| Inspectors | Lukas Kuyper | (970) 691-7689 | Loveland | Lukas Kuyper |
| Installers | Sisson and Sons Contracting | (303) 881-8517 | Broomfield | Jeff Sisson |
| Installers | Rip it & Fix it | (303) 875-5018 | Allenspark | Jayden Jackson |
| Inspectors | Crow Creek Septic Services | (970) 413-4791 | Wellington | Tim Friedel |
| Cleaners | Crow Creek Septic Services | (970) 413-4791 | Wellington | Tim Friedel |
| Installers | Crow Creek Septic Services | (970) 413-4791 | Wellington | Tim Friedel |
| Installers | CGRS, Inc | (303) 710-2018 | Fort Collins | Josh Hutto |
| Installers | Jake Of All Trades Contracting | (303) 808-4490 | Golden | Jake Gould |
| Installers | JR Hiller, LLC | (720) 308-8158 | Wheat Ridge | Jesse Hiller |
| Installers | Leo's Welding & Septic | (720) 940-8440 | Commerce City | Leopoldo Soto |
| Inspectors | A-1 Septic Service | (303) 659-0610 | Fort Lupton | Spenser Rickman |
| Cleaners | A-1 Septic Service | (303) 659-0610 | Fort Lupton | Spenser Rickman |
| Inspectors | Moutain Contracting, LLC | (303) 888-3580 | Black Hawk | Matthew Tarpill |
| Cleaners | The Terd-inator, LLC | (720) 234-2499 | Fort Lupton | Steve Helvig |
| Installers | Vancara Builders | (303) 591-7963 | Brighton | Scott Cvancara |
| Cleaners | Portable Restroom Solutions | (970) 834-1275 | Johnstown | Mark Rushing |
| Installers | Cowbell Construction | (970) 948-6896 | Boulder | Matthew Legg |
| Installers | Mountain X | (720) 808-7506 | Idaho Springs | Daniel Orr |
| Installers | HS Excavation, LLC | (303) 547-0114 | Hudson | Zachary Skelton |
| Installers | Legacy Excavation, LLC | (970) 344-8803 | Berthoud | Gary Kolm |
| Cleaners | Mr. Rooter | (301) 259-1331 | Aurora | Nicholas Briganti |
| Installers | Rocky Summit Excavation, LLC | (720) 576-3490 | Westminster | Eric Goodwin |
| Inspectors | The Drain Pros | (970) 619-7024 | Wellington | Michael McGregor |
| Cleaners | Stewart Pump Works | (970) 217-1859 | Ft Collins | Thomas Langusch |
| Cleaners | Colorado Pumping, LLC | (303) 278-1884 | Denver | Bartley Malicoat |
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