Wisconsin’s Leader In Portable Restroom Rentals & Septic Services

Arnold’s Environmental was featured in Milwaukee Magazine’s Faces of MKE 2019. Learn More >
Since 1958, Arnolds Environmental Services is the recognized leader in the portable restroom industry throughout southeastern Wisconsin. We excel in this industry through leadership, technology and best practices.

Our investment in education and green initiatives assure our customers the highest level of quality and service. We pride ourselves on our problem solving, specialized solutions and attention to detail.

Experience the Arnolds Difference!

Arnolds Environmental Services is committed to providing modern clean equipment, on-time delivery and consistent service. Serving our community for more than 55 years, we have the experience and expertise for portable restroom rentals and septic services. We believe it’s more than just porta john rentals: our team is dedicated to providing outstanding service and modern sanitation solutions.

Arnolds Mission

To uphold the integrity and professionalism of our industry by providing our customers with the highest quality service available. To provide a positive work environment where our family of employees can grow and prosper by working together as a team.

Thank you for supporting Arnold’s Environmental! We are a Certified Woman-Owned Business Enterprise (WBE).


Portable Restroom Operators (PRO) Magazine serves owners and managers of businesses that rent and service portable restrooms, luxury restroom trailers.

Tammy Thompson-Oreskovic

President & CEO
Arnold’s Environmental Services, Inc.
Email Tammy

Pat Oreskovic

Arnold’s Sanitation Technologies, Ltd.
Email Pat

Mike Steidtmann

Operations Manager
Email Mike

Lisa Windorff

Office Manager
Accounts Payable Specialist
Email Lisa

Marcy Peterson

Accounts Receivable Specialist
Sales Representative
Email Marcy

Dawn Weaver

Customer Service Representative
Email Dawn

Gabby Oreskovic

Accounts Payable Clerk
Email Gabrielle