Licensed Septic Companies in Olmsted County, MN
16 septic companies serve Olmsted County, Minnesota, and 16 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 Olmsted County
Guides: Septic tank pumping · Septic system installation · Septic inspection · Septic repair · Drain field repair · Aerobic septic systems · Installation cost · Pumping cost
16 septic companies in Olmsted County
Rochester 5
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Berres Excavating, LLC
3410 19th Ave NW, Rochester, MN 55901
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4173 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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Broken Rock Construction & Excavating
2417 22nd Ave SE, Rochester, MN 55904
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4338 (Minnesota Pollution Control Agency, verify)
- Licensed: Minnesota MPCA Pipelaying Bond · #L4338 (Minnesota Department of Labor and Industry, verify)
- Licensed: Minnesota Qualifying Builder · #QB808836 (Minnesota Department of Labor and Industry, verify)
- +1 more credential
From their website: Installation
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Gopher Septic Service Inc
PO Box 9280, Rochester, MN 55903
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Maintainer, Service Provider, Inspector, Designer) · #L866 (Minnesota Pollution Control Agency, verify)
Per state license: Pumping · Installation · Inspection · Aerobic systems · Perc testing
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J's Excavating and Trucking LLC
5924 County 16 Rd SE, Rochester, MN 55904
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4337 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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T G Swanson Excavating Inc
2408 Marion Rd SE, Rochester, MN 55904
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Designer) · #L784 (Minnesota Pollution Control Agency, verify)
Per state license: Installation · Perc testing
Stewartville 4
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Hebl Septic LLC
11846 Oak Ave SW, Stewartville, MN 55976
- Licensed: Minnesota MPCA Pipelaying Bond · #L4026 (Minnesota Department of Labor and Industry, verify)
From their website: Installation
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Hebl Septic LLC
11846 Oak Ave SW, Stewartville, MN 55976
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4026 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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High Forest Bobcat Service Inc.
6996 County 6 Rd SW, Stewartville, MN 55976
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L4448 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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Pit Stop Portable Outhouses LLC
4517 County Road 140 SE, Stewartville, MN 55976
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Maintainer) · #L3042 (Minnesota Pollution Control Agency, verify)
Per state license: Pumping
Byron 2
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Clint Larsen Construction
823 7th St NE, Byron, MN 55920
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L3087 (Minnesota Pollution Control Agency, verify)
- Licensed: Minnesota MPCA Pipelaying Bond · #L3087 (Minnesota Department of Labor and Industry, verify)
From their website: Installation · Repair · Drain field
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Decook Excavating Inc
PO Box 69, Byron, MN 55920
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L2842 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
Eyota 2
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ERH Construction Inc.
9229 Viola Rd NE, Eyota, MN 55934
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L3978 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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Irish Excavating Inc
7384 Collegeview Rd, Eyota, MN 55934
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L2218 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
Chatfield 1
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G G G Inc.
14070 Highway 52 SE, Chatfield, MN 55923
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Service Provider, Inspector, Designer) · #L686 (Minnesota Pollution Control Agency, verify)
Per state license: Inspection · Aerobic systems · Perc testing
Hayfield 1
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Severson Construction
10226 80th St SW, Hayfield, MN 55940
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer, Designer) · #L254 (Minnesota Pollution Control Agency, verify)
Per state license: Installation · Perc testing
Oronoco 1
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Ottman Excavating Inc
725 Territory Lane NW, Oronoco, MN 55960
- Licensed: Minnesota MPCA Licensed SSTS (Septic) Business (Installer) · #L2421 (Minnesota Pollution Control Agency, verify)
Per state license: Installation
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 Olmsted 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 Olmsted County: common questions
How many licensed septic companies are in Olmsted County, MN?
16 septic companies serve Olmsted County, Minnesota, and 16 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 Olmsted County?
2 of the 16 listings in Olmsted 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 Olmsted County?
14 listings in Olmsted 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.