---
title: "Altra Onsite Services LLC, Princeton, MN | MN Home Sale Pros"
description: "Altra Onsite Services LLC: Septic (SSTS) inspection in Princeton, MN. Licence details, contact and quotes."
canonical: https://mnhomesalepros.com/firms/altra-onsite-services-llc-sl4487/
---

# Altra Onsite Services LLC

* Septic (SSTS) inspection
* Princeton, MN (Sherburne County)
* Phone: (320) 626-4422
* Email: ericotte@septiccheck.com
* Address: 32302 136th St NW, Princeton, MN 55371
* Google rating: 5.0 from 5 reviews (as of Oct 18, 2026)
* MPCA SSTS licence L4487: Inspector, Intermediate Inspector, Advanced Inspector (exp. 2027-02-20)
* Also licensed: Designer, Installer, Service provider, Pipelayer
* bonded · insured

Get a quote: https://mnhomesalepros.com/get-quotes/?firm=SL4487

Source: https://services.pca.state.mn.us/api/v1/ssts/licensed-businesses?format=json, retrieved 2026-10-12. Claim / correct: https://mnhomesalepros.com/list-your-business/?id=SL4487