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Licensed Septic Professionals
family playing outside with a dandelion flower

Licensed Septic Professionals

Onsite Wastewater Treatment Systems Professionals

Apply or Renew your Professional License or Registration

Work that Requires a Licensed Professional

  1. Full system installation
  2. Soil treatment area (STA) replacement
  3. Tank replacement
  4. Lift Station replacement
  5. 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
Type of ProfessionalCompany NamePhoneCityContact NameEmail Address
InspectorsMax Yeager(303) 449-0454BoulderMax Yeager[email protected]
EngineersWilliam Young(303) 604-2986Erie
EngineersSheila Cross(719) 836-9669Buena Vista
EngineersAdvanced Prof. Engineering(970) 484-0533Ft. Collins
EngineersAll Service Septic(303) 908-7823ArvadaRichard Petz[email protected]
EngineersAmerican Geotechnical, Inc(303) 817-6661LittletonDave Beasley
EngineersAnderson & Hastings(303) 433-8486LakewoodJim Hastings
EngineersAndrew Marner(303) 933-4692LittletonAndy[email protected]
EngineersArmfield Engineering, Inc(720) 363-7125LongmontKenneth Armfield[email protected]
EngineersBluefin U.S., Inc(303) 440-9300BoulderRobert Nauman
EngineersBornengineering(303) 426-1731WestminsterLana Stoppel[email protected]
EngineersCarrick Engineering Corporation(303) 622-9607StrasburgJonathan Carrick[email protected]
EngineersCRE Design Engineerign(303) 688-5151Castle RockAndy Jesik
EngineersCDS Engineering Corporation(970) 667-8010LovelandKevin Becker[email protected]
EngineersCES Consultants, LLC(970) 373-4480JohnstownKurt Rollin
EngineersChurch Onsite Wastewater Consultants(720) 898-3434GoldenKate Carney[email protected]
EngineersRocky Mountain Group(719) 488-2145MonumentTom Cope & Matt Meier[email protected], [email protected]
EngineersColorado Geoscience & Design(303) 688-2150FranktownMichael J. Ballou[email protected]
EngineersComplete Engineering Services(303) 279-6418GoldenEdward D. Ford[email protected]
EngineersCornerstone Engr. & Surveying(970) 585-2458Estes ParkMichael Todd[email protected]
EngineersCTL/Thompson(970) 206-9455Ft. CollinsChip Leadbetter
EngineersESEC, Inc(303) 888-0744ParkerRonald Huffman
EngineersHollingsworth Associates, Inc(303) 781-5188SheridanTom Hollingsworth[email protected]
EngineersIkeler Engineering, LLC(303) 258-8604BlackhawkMike Ikeler[email protected]
EngineersTCS(970) 420-6726BerthoudThomas Strizki[email protected]
EngineersInvestigative Engineers & Geologists(303) 619-7973GoldenSamuel Urton David Cushman[email protected] [email protected]
EngineersJR Engineering, Ltd(303) 740-9393EnglewoodV. Hernandez
EngineersJVA, Inc(303) 564-4974DenverSimon Farrell[email protected]
EngineersKC Hamilton Eng., Inc(303) 733-4702DenverKen Hamiltonkcengineering.com
EngineersKiva Engineering, Inc(970) 663-0138LovelandBill Mitzelfeld
EngineersKnechtel Engineering., Ltd(303) 772-3020LongmontWin Knechtel
EngineersKordziel Engineering, Inc(303) 216-1919GoldenJoe Kordziel[email protected]
InstallersGrayline Excavating, Inc(303) 710-0501EatonChris Gray[email protected]
EngineersLandmark Engineering(970) 667-6286LovelandRod Harr[email protected]
EngineersQuality Engineering, LLC(970) 416-7891Ft. CollinsCody Geisendorfer
EngineersPalumbo, Francis(303) 246-3824LongmontFrancis Palumbo
EngineersPickering, Cole & Hivner(303) 996-2999WestminsterAndrew J. Garner
EngineersRichard Walters(970) 226-8744Fort Collins[email protected]
EngineersSCG Enterprises, Inc(303) 619-2158ConiferRoger Shafer[email protected]
EngineersSubstrata, LLC(970) 535-6144LovelandJosh Schmidt[email protected]
EngineersSTRUXURE(303) 258-7441BlackhawkKathryn Langdon[email protected]
EngineersThomas Hoh, PE(303) 449-2590Boulder[email protected]
EngineersTimberline Engineering(303) 868-3752CarbondaleDavid Powell[email protected]
EngineersVan Horn Engineering & Survey(970) 586-9388Estes Park[email protected]
EngineersWayne Wentworth(303) 775-7962Longmont[email protected]
EngineersWestern Engr. Consultants(720) 685-9951BrightonChad Cox[email protected]
EngineersWilkinson Engineering(303) 499-6755LongmontWilliam Wilkinson[email protected]
EngineersJeffrey D Block, PE & Associates, Inc(208) 699-0080BoulderJeffrey D Block[email protected]
CleanersFront Range Portable(303) 570-5945LongmontSteve Silvers[email protected]
CleanersJohnston Sanitation, LLC(970) 667-5405LovelandEvan & Denise Welting[email protected]
CleanersSullivan Septic, LLC(303) 772-4019LongmontKevin Sullivan[email protected]
CleanersAir-O-Pure(303) 258-3597NederlandHillary Kysar[email protected]
InstallersAckerman's Excavation(303) 747-2548LyonsGeorge Ackerman[email protected]
InstallersGapter Septic System & Excavating(303) 666-6404ErieGreg Gapter[email protected]
InstallersMarshal Fike(303) 808-5683JamestownMarshal Fike
InstallersSullivan Septic, LLC(303) 772-4019LongmontKevin Sullivan[email protected]
InstallersThe Excavator(303) 818-6071LongmontWilliam Sivy[email protected]
InstallersTriple R Backhoe, Inc(970) 587-6424MillikenRobert G Ribble[email protected]
InstallersWestern Eagle Enterprises, Inc(303) 642-0757GoldenSteven Orloff[email protected]
InstallersYeager Excavating(303) 449-0454BoulderMax Yeager[email protected]
InspectorsSullivan Septic, LLC(303) 772-4019LongmontCindy Sullivan[email protected]
InspectorsSullivan Septic, LLC(303) 772-4019LongmontKevin Sullivan[email protected]
EngineersJeff Davis Engineering, LLC(303) 674-2224EvergreenJeff J. Davis[email protected]
InstallersTundra Septic &Excavating(303) 747-1013AllensparkJoanna L. Goud[email protected]
EngineersAlliance Consulting(720) 625-1571ArvadaDavid E Moore[email protected]
InstallersBudhoe's Backhoe, LLC(303) 877-5267JamestownAlbert Kihm Jr.[email protected]
EngineersAlles Taylor & Duke, LLC(970) 330-0308EvansMark A Taylor[email protected]
InstallersCap Excavating(303) 772-2279LongmontKyle Braly[email protected]
InstallersHel-Digger Water & Sewer, LLC(303) 619-4397HendersonRob Helvig[email protected]
InstallersNixcavating, Inc(303) 776-8898LongmontR. Scott Nix[email protected]
Engineers5280 Septic, LLC(303) 437-1027DenverAnnette Martin[email protected]
EngineersEarth Engineering, Inc(970) 775-2004WindsorMichael J. Coley[email protected]
CleanersNoCo Septic, Inc(720) 899-8749LongmontScott Kapala[email protected]
InspectorsNoCo Septic, Inc(720) 899-8749LongmontScott Kapala[email protected]
InstallersGrein Excavating, LLC(303) 659-5295BrightonMichael Grein[email protected]
InstallersHigh Altitude Backhoe Services(303) 459-0478WardJesse Farmer[email protected]
InstallersNoCo Septic, Inc(720) 899-8749LongmontScott Kapala[email protected]
EngineersInsight Engineering, Inc(303) 929-4272EvergreenDrew Schneider[email protected]
EngineersAmec Foster Wheeler(303) 975-2195DenverRaymond D Hamilton[email protected]
InstallersMountain Island Construction(303) 588-4165NederlandDavid Taylor[email protected]
InspectorsSullivan Septic, LLC(303) 772-4019LongmontCody Lehl[email protected]
InspectorsSullivan Septic, LLC(303) 772-4019LongmontKrystal Lehl[email protected]
InspectorsTundra Septic & Excavating(303) 747-1013AllensparkJoanna L. Goud[email protected]
InstallersBioterra Constructors(303) 579-3569BoulderPhilip Hollimon[email protected]
EngineersSorensen Engineering & Construction, LLC(970) 590-1579Ft CollinsPaul Sorensen[email protected]
InstallersNext Level Excavation, LLC(970) 215-4444Estes ParkScott Miller[email protected]
InstallersCap Excavating, Inc(303) 772-2279LongmontDylan Braly[email protected]
InstallersBlack Diamond Excavating(303) 601-4216Black HawkSteven Grapes[email protected]
InstallersHigh Plains Excavation & Haulin(970) 308-4666Estes ParkWendy Adams[email protected]
InstallersJones Excavating & Plumbing(970) 532-2620BerthoudJosh Jones[email protected]
InstallersUpland Construction & Development, LLC(303) 641-7510BoulderAlex Nelson[email protected]
InstallersAfford-A-Rooter(303) 269-1168WestminsterZac Harvey[email protected]
InspectorsAfford-A-Rooter(303) 269-1168WestminsterZac Harvey[email protected]
InspectorsJones Excavating & Plumbing(970) 532-2620BerthoudJosh Jones[email protected]
InstallersBoonstra Excavation, LLC(970) 278-6151LovelandStephen Boonstra[email protected]
InspectorsSuc N Up, LLC(303) 641-7675LongmontCraig Cheney[email protected]
EngineersSunshine Engineers, LLC(720) 248-7434BoulderWilliam Close[email protected]
CleanersBlack Diamond Pumping(303) 720-0401Ft LuptonBradley Billinger[email protected]
InspectorsBlack Diamond Pumping(303) 720-0401Ft LuptonBradley Billinger[email protected]
CleanersSuc N Up, LLC(303) 641-7675LongmontCraig Cheney[email protected]
InstallersGopher Excavation, Inc(970) 532-1112BerthoudWilliam Suits[email protected]
InstallersOpen Range Services(970) 306-9790GreelyJerry Larson[email protected]
InstallersMountain View Construction of Estes Park(303) 747-2248AllensparkBrian Donahue[email protected]
InstallersHaystack Custom Ag.& Septic Service, LLC(303) 827-4988LongmontKyle Rovnak[email protected]
InstallersHardt's Backhoe Service(303) 589-9354RollinsvilleChris Hardt[email protected]
InstallersHarely Keeter Jr Trucking, Inc(303) 442-2131BoulderMichael Love[email protected]
InstallersK2 Excavation(970) 302-6899BerthoudArden Krey[email protected]
InstallersPower Earth(303) 449-7014BoulderChris Loven[email protected]
InstallersHigh Performance Earthworks(720) 514-9817NederlandJesse Seavers[email protected]
InspectorsK2 Excavation(970) 302-6899BerthoudArden Krey[email protected]
InspectorsFoothills Septic Pumping(303) 670-3160GoldenNathaniel Waters[email protected]
CleanersFoothills Septic Pumping(303) 670-3160GoldenVictor Juarez[email protected]
InspectorsColorado Septic(720) 514-9703NederlandRobert Broadwell[email protected]
CleanersColorado Septic(720) 514-9703NederlandRobert Broadwell[email protected]
CleanersGapter Septic Pumping & Services, LLC(303) 506-1593BoulderCollin Gapter[email protected]
InspectorsGapter Septic Pumping & Services, LLC(303) 506-1593BoulderCollin Gapter[email protected]
InstallersLion Home Service(970) 556-0544Ft CollinsMark Lancaster[email protected]
InspectorsLion Home Service(970) 556-0544Ft CollinsMark Lancaster[email protected]
CleanersLion Home Service(970) 556-0544Ft CollinsMark Lancaster[email protected]
InstallersCWS Excavating(303) 243-2298BoulderMatthew Morgan[email protected]
InstallersRST Services, LLC(720) 346-8279LongmontTucker Pattridge[email protected]
InstallersLen's Excavating, Inc(303) 956-1305ArvadaJustin Cole[email protected]
InstallersMountain Contracting, LLC(303) 888-3580Black HawkMatt Tarpill[email protected]
EngineersInnovative Process Engineering, PLLC(720) 775-0076MonumentRonald P LeBlanc[email protected]
EngineersGeoMet Engineering, Inc(209) 712-2168BoulderRyne Mettler[email protected]
CleanersUnited Rentals (North America) INC dba Reliable Onsite Services(303) 286-4394DenverJeffrey Walker[email protected]
EngineersRMG Engineers(719) 434-5638Colorado SpringsDavid G Walker[email protected]
CleanersThe Terd-inator, LLC(720) 234-2499Fort LuptonSteve Helvig[email protected]
InspectorsThe Terd-inator, LLC(720) 234-2499Fort LuptonSteve Helvig[email protected]
CleanersKuyper's Septic, Inc(970) 405-3343LovelandClint Kuyper[email protected]
InstallersHastings Brothers Construction(303) 907-7861DenverSeth Sutton[email protected]
InstallersMeyers Services(720) 431-8730Black HawkJeramy Meyers[email protected]
InstallersGrapes & Sons Excavating, Inc(303) 582-1131Black HawkHolly Grapes[email protected]
InstallersQuintana Excavation, Inc(720) 614-2862Federal HeightsJamie Quintana[email protected]
InstallersPeak Plumbing(970) 673-6025TimnathJacob Smyth[email protected]
InstallersEddie Stark, LLC(720) 641-0393Wheat RidgeEddie Stark[email protected]
InstallersAmerican Sewer and Utilities(970) 420-5086LovelandEric Hopkins[email protected]
InstallersBig Dog Excavation, Inc(970) 576-9961KerseyMana Kaia[email protected]
CleanersAfford-A-Rooter(303) 269-1168WestminsterZac Harvey[email protected]
InspectorsSuc N Up, LLC(720) 289-6210LongmontSarah Hubbard[email protected]
InspectorsSuc N Up, LLC(720) 289-6210LongmontMary Meyers[email protected]
InstallersEvergreen Excavating & Tree Service, LLC(720) 272-4695EvergreenTodd Hanson[email protected]
InstallersStinson Dirtwork(720) 588-3478LakewoodDavid Stinson[email protected]
InspectorsSuc N Up, LLC(720) 289-6210LongmontMaria Pearson[email protected]
InspectorsSuc N Up, LLC(720) 289-6210LongmontLacey Walker[email protected]
InspectorsLukas Kuyper(970) 691-7689LovelandLukas Kuyper[email protected]
InstallersDusty's Dirtworks, LLC(970) 749-1903WindsorDusty Neil[email protected]
InstallersWayne's Dirt Work, Inc(970) 222-4357BellvueWayne Kontz[email protected]
InstallersA Perfect Flush DBA Suc N Up, LLC(720) 289-6210LongmontCraig Cheney[email protected]
Engineers285 Engineering, Inc(720) 515-1781ConiferJennifer Migliorato[email protected]
EngineersHydroecologic Engineering(720) 757-4944BoulderBrian Caruso[email protected]
InstallersSeptic Solutions(720) 705-9686ThorntonNathaniel Detwiler[email protected]
InstallersCasey Russell(720) 334-3750BoulderCasey Russell[email protected]
InstallersDouble S Enterprises, LLC(303) 408-7776BroomfieldJed Schwegman[email protected]
InspectorsDouble S Enterprises, LLC(303) 408-7776BroomfieldJed Schwegman[email protected]
InstallersKennedy Plumbing, Inc(303) 710-1417BennettGreg Kennedy[email protected]
InstallersHatrock Excavating(720) 771-2353LyonsSteve McCain[email protected]
InstallersDiesel Runners, LLC(720) 648-4931GoldenSanborn Brown[email protected]
InstallersJordan Ventures, Inc(970) 261-6176Grand JunctionJon Jordan[email protected]

Contact Us


SepticSmart Program

Main: 303-441-1564
Submit a question


Location

Boulder
3450 Broadway
Map and Directions
Hours: 8 a.m. to 4:30 p.m.
Monday-Friday

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