Licensed Septic Companies in Washington County, MN
19 septic companies serve Washington County, Minnesota, and 19 of them hold a Minnesota septic license or certification matched to the Minnesota Pollution Control Agency list (data as of October 2026).
Septic services in Washington County
Guides: Septic tank pumping · Septic system installation · Septic inspection · Aerobic septic systems · Installation cost · Pumping cost
19 septic companies in Washington County
Stillwater 4
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Bartie Construction Inc.
5640 Memorial Ave N Ste E, Stillwater, MN 55082
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4432 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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Bell Excavating, Inc.
PO Box 775, Stillwater, MN 55082
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Service Provider, Designer) · #L2406 (Minnesota Pollution Control Agency, verify)
Per state license: Installation · Aerobic systems · Perc testing
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John Buelow Excavating LLC
13254 20th St N, Stillwater, MN 55082
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L389 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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Libby Construction LLC
16644 Square Lake Trl N, Stillwater, MN 55082
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4009 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
No phone on the state list
Forest Lake 3
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Able Go Green Septic Services Inc.
79 Lake Street North, Forest Lake, MN 55025
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Maintainer, Designer) · #L1675 (Minnesota Pollution Control Agency, verify)
Per state license: Pumping · Installation · Perc testing
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Ground Tech, Inc.
24013 Goodview Way N, Forest Lake, MN 55025
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4540 (Minnesota Pollution Control Agency, verify)
- Licensed: Minnesota MPCA Pipelaying Bond · #L4540 (Minnesota Department of Labor and Industry, verify)
- Licensed: Minnesota Registered Contractor · #IR652925 (Minnesota Department of Labor and Industry, verify)
Per state license: Installation
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Wagner Septic & Excavating LLC
21545 Hilo Ave N, Forest Lake, MN 55025
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4345 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
Hastings 3
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Meyer Sewer Service, LLC
6610 Neal Ave S, Hastings, MN 55033
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Maintainer) · #L915 (Minnesota Pollution Control Agency, verify)
Per state license: Pumping
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Saint Croix Sewer Service, Inc.
8319 Manning Ave S, Hastings, MN 55033
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Designer) · #L3977 (Minnesota Pollution Control Agency, verify)
Per state license: Installation · Perc testing
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SS Septic Solutions LLC
14845 113th St S, Hastings, MN 55033
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Inspector, Designer) · #L4137 (Minnesota Pollution Control Agency, verify)
Per state license: Installation · Inspection · Perc testing
Hugo 2
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A & B Construction of MN., Inc
5560 140th St N, Hugo, MN 55038
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L123 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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Fuhr Trenching Inc
12539 Manning Trl N, Hugo, MN 55038
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L52 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
Saint Paul Park 2
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Dynamic Earth & Civil LLC
10675 Grey Cloud Island Dr S, Saint Paul Park, MN 55071
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4538 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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Rumpca Companies, Inc.
700 Pullman Ave, Saint Paul Park, MN 55071
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4144 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
Afton 1
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Pinky's Sewer Service Inc.
12610 40th St S, Afton, MN 55001
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Maintainer) · #L4251 (Minnesota Pollution Control Agency, verify)
Per state license: Pumping
Grant 1
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Midwest Sewer Services
6616 Indian Wells Trail, Grant, MN 55110
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Maintainer, Inspector, Designer) · #L2896 (Minnesota Pollution Control Agency, verify)
Per state license: Pumping · Installation · Inspection · Perc testing
Lake Elmo 1
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CK Excavating LLC
9260 31st St N, Lake Elmo, MN 55042
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L3688 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
Scandia 1
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Smilie's Sewer Service
23893 Pomroy Ave N, Scandia, MN 55073
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Maintainer, Service Provider) · #L2428 (Minnesota Pollution Control Agency, verify)
Per state license: Pumping · Installation · Aerobic systems
Woodbury 1
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David R. Brown
PO Box 251026, Woodbury, MN 55125
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Inspector, Designer) · #L3649 (Minnesota Pollution Control Agency, verify)
Per state license: Inspection · Perc testing
No listings match those filters.
Septic licensing in Minnesota
Minnesota licenses septic (SSTS) businesses and certifies the individuals who work for them. The MPCA search shows each business's license, insurance and bond status. The Minnesota Pollution Control Agency (SSTS program) issues these credentials: SSTS business license (installer, maintainer, service provider, designer, inspector); Individual SSTS certifications.
Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles Washington County and whether the permit fee is in their quote.
Minnesota septic licensing: agencies, license types and how to check a license →
Septic companies in Washington County: common questions
How many licensed septic companies are in Washington County, MN?
19 septic companies serve Washington County, Minnesota, and 19 of them hold a Minnesota septic license or certification matched to the Minnesota Pollution Control Agency list (data as of October 2026). Each license badge on this page names the agency and links to its lookup so you can confirm it.
Who licenses septic contractors in Minnesota?
Minnesota licenses septic (SSTS) businesses and certifies the individuals who work for them. The MPCA search shows each business's license, insurance and bond status. The licensing body is the Minnesota Pollution Control Agency (SSTS program).
Which companies pump septic tanks in Washington County?
5 of the 19 listings in Washington County offer septic tank pumping, either on their own website or under a state pumper license. Use the service filter above to show only those companies.
Which companies install septic systems in Washington County?
16 listings in Washington County install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their Minnesota license.
How do I check a septic contractor's license in Minnesota?
Use the Minnesota Pollution Control Agency (SSTS program)'s lookup (https://webapp.pca.state.mn.us/ssts/) and search the contractor's name or license number. Our guide to checking a septic license walks through it.