- WI(414) 771-0400
- IL(630) 458-8816
About Us
Representing the finest quality commercial and residential plumbing manufacturers since 1931.
Our history
Since 1931, Herkowski Stickler & Associates has been servicing the plumbing industry as a manufacturer’s representative. Our team of sales professionals has the experience to help at all levels of the plumbing industry. With its years of experience, HSA evolved from the analysis and anticipation of market needs, and the mix of people and products, and services to meet those needs.
Our benefits
With a strategy of “pull through selling” and a philosophy that always puts the customer first, HSA has a team whether in Wisconsin or Illinois to fully drive any manufacturer’s sales strategy. Herkowski Stickler & Associates services architects, engineers, wholesalers, and mechanical contractors in Wisconsin, the Upper Peninsula of Michigan, and Illinois as a manufacturer’s representative.
Our values
We realize that growing our business through strong relationships is the key to our clients’ success. While representing quality manufacturers, we provide the customer with quick, reliable service that will ultimately lead to a positive sales experience for our principal partners and our mutual customers.
Open since 1931
A family owned business, Herkowski Stickler & Associates have been in operation for more 90 years.
2 Locations
Our warehouses span both Wisconsin and Illinois and have over 25,000 sqft of products ready to ship.
36 employees
The HSA team continues to grow over the years to help provide better service to our customers.
320+ years of experience
Our teams extensive knowledge of the plumbing industry allows us to recommend the right parts for your job.
1931
Byron Stickler starts Stickler & Associates
1974
Ray Stickler purchases Stickler & Associates
2008
Stephen Stickler purchases Stickler & Associates
2012
Herkowski Sales joins forces with Miller Sales in Illinois
2013
Joe Herkowski & Stephen Stickler join forces as Herkowski Stickler & Associates
2014
HSA joins forces with Riddle Associates in Illinois
2021
HSA joins forces with Deery-Pardue & Associates in Illinois
2022
HSA opens Service Center at its Wisconsin location
2023
HSA Gives Back is implemented to support charitable endeavors
2023
HSA Hot Water Technical Solutions is introduced
Business Development Professionals
Joe Herkowski CPMR
Owner/Business Development Professional
Tara Jensema
Distribution Business Development Manager
Jimmy Kane
Business Development Professional
William Kane
Business Development Professional
Mark Luczak
Business Development Professional
Penny Rimdzius
Distribution Business Development Manager
Jeff Rudy
Business Development Manager
Steve Sagadin
Business Development Professional
Nick Soristo
Business Development Professional
Steve Stickler CPMR
Owner/Business Development Professional
Bob Suszek
Business Development Professional
Eddie Tremore
Business Development Professional
Derek Vaughn
Business Development Manager
Jonathan Westergaard
Business Development Professional
Brian Baxter CPMR
Inside Support General Manager
Donald Castle
Inside Support
Daisy Ciolli
Inside Support
Jason Gerard
Inside Support
Diana Gurak
Inside Support
Tyler Hamilton
Inside Support ASsistant General Manager
Brenda Holz
Inside Support
Patty MacKay
Inside Support
Brian McCarthy
Inside Support
Krystyna Pierce
Inside Support
Keith Pirlot
Inside Support
Paula Sowinski
Inside Support
Tom Sowinski
Inside Support
Carrie Vetter
Inside Support
Katie Goodman
Communications Manager
Evan McMillin
Warehouse Manager
Memphis Van Engen
Warehouse
HSA has unrivaled experience when it comes to knowing both how their products are installed and the most current products available.
– Design Engineer at SmithGroup JRR
HSA helps us be a better contractor by bringing the latest and greatest equipment and materials so we’re not lagging behind the latest market trends.
– Matt Brennan, Co-President at JM Brennan
HSA has always done a great job with bringing new and innovative products to our attention that they believe could help our business.
– Greg Jones, CEO at Dave Jones (part of the Forgewell Building Group)
We are members of these fine organizations
At HSA, we recognize the importance of working with the right people. Throughout the years, we have joined, connected, and collaborated with many organizations that work towards making the plumbing industry the best it can be.
We're here to help
Not sure what you need? Looking for some assistance with our product lines? Reach out to us and one of our sales reps will be in touch with you shortly to assist.

Derek VaughnBusiness Development Manager