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Engineering solutions today to meet tomorrow's needs. Since 1953.

Welcome.      We hope you find this site helpful in learning more about Fredericksen Engineering. Please contact us at:


or via the Contact Us Link above for more information.

Fredericksen Engineering is a Consulting Engineering firm providing Heating, Ventilating and Air Conditioning Design Services with successful projects throughout the United States.

Our goal is a satisfied client and we strive daily to achieve that goal. Our client list includes Architects, Owners, Municipalities, County Governments, School Districts and Consulting Engineers in the fields of Plumbing and Electrical. We provide HVAC engineering services for:




















Thank you for visiting our site, we hope you found it helpful.


If you have any questions or would like to contact us to discuss a current or future project please do not hesitate to call us at (262)243-9090 or at or at our office at: 12308 Corporate Parkway, Suite 400, Mequon WI 53092. We are located just off of Port Washington Road between Mequon Road and Highland Road.

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