Address: 1635 W Saint Paul Avenue, Milwaukee, WI 53233
Phone: 414-252-0677


John Shannon, Founder and Managing Director:


  • How long have you been in business: Guardian opened in 2018 after a 2 year renovation of our Menomonee Valley building. Built in 1924, the brick and concrete warehouse needed a lot of work to make it the state-of-the-art facility it is now. It had been empty for about 25 years prior to our purchasing it.  We gutted the interior and installed new systems. We now have bank-like security and strict environmental controls in place to keep temperature and humidity at the safest levels for artwork. And, all the lighting is LED, which is the best choice for artwork.

  • In a few sentences, tell us what inspired you to create and/or operate this particular business: My wife Jan Serr and I have been avid art collectors for over 50 years. When the time came to review and catalog our art collection, of more than 3600 pieces, we learned there were no sophisticated, secure art storage facilities in Wisconsin. We saw a need for secure art storage not just for ourselves, but also for other collectors and museums in the community.  We work with many local and regional individuals and institutions on storage and we provide transportation and logistics to local, national, and international destinations.  One of our busiest sectors is packing and crating sensitive art and objects for safe shipment. The positive response to Guardian has kept our registrars and trained art handlers busy with a wide variety of tasks. We offer specialized services that are hard to find elsewhere.  As passionate supporters of the arts in Milwaukee for decades, we are pleased to offer practical solutions to the complex needs of artists, galleries, museums, collectors, art lovers, and others.




Guardian Fine Art Services is home to The Warehouse is a 4,000 SF exhibition space on the ground floor of a large five-story former factory and warehouse built in 1924 in Milwaukee’s Design District. LED lighting and display walls have been added to the renovated space, which retains elements of the building’s industrial past, such as concrete columns and floors. The Warehouse mounts curated exhibits of artists from its permanent collection and other sources.

We are always free and open to the public. We have free parking in an off street lot. We do 4 main exhibitions per year. Our current show, I Am a Story: Self-Portraits will be up until January 22, 2021.