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
Sewer Service Provider
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Welcome To Petersen Onsite A leader in sewer services. We are based in Fredonia, Wisconsin and have over 100 years experience. High Standard Petersen Onsite provides products, services, consulting and management for onsite water and wastewater treatment.

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. Click any item number for high-reliability specifications on all your pipeline supplies. As a pipe plug manufacturer, we can help with product customization and new solutions for plumbing and industrial pipeline products.

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

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, tunneling, plumbing, and pipeline customers.

To be seen as a responsive, beneficial, creative, and trusted solution provider. Petersen is committed to providing customers with product and service solutions that conform to the ISO 9001 Standard with continuous quality improvement and meet customer, legal, and regulatory requirements. 

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!