1-800-827-5275 Mon - Fri 8:00 - 5:00 421 Wheeler Ave Fredonia, WI 5302
ISO 9001:2015
The Best
#1 in Wisconsin
Number #1
Onsite Wastewater
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Punctual Delivery Time

99% Delivered On Time

High Standards

& Environment Friendly

Unmatched Laborers

99% QC Passed

About Petersen Onsite

Contact Petersen for your most demanding product and service requirements. As an innovative wastewater treatment system supply and management company, we are dedicated to providing solutions! 

We are regularly chosen for sewer service projects in the state of Wisconsin

Our Mission

Contribute to the total wellbeing of individuals and society by employing and empowering highly capable people of integrity who are motivated to create solutions of considerable value especially for wastewater customers.

Our Vision

To be seen as a responsive, beneficial, creative, and trusted solution provider. Petersen is committed to providing our customers product and service solutions with continuous quality improvement that meet customer, legal, and regulatory requirements.

Our Customers

Our overriding obligation is to benefit people and industries who use our products and services. We are committed to the highest degree of integrity and understand that customer safety, satisfaction, and trust defines our reputation and the value of our products and services in the market.

Featured Works

We were proud to have been highlighted in the Precast Solutions publication! Cover page article featuring Wieser Concrete, Petersen Onsite, and the rest of our team!
Precast Solutions Showcase:
Fall 2020 / Summer 2018