About Us

Who we are

At Air Design Systems, we've been shaping Chicago's most advanced HVAC and sheet metal projects since 1977. As Chicago's largest woman-owned ventilation contractor, we're proud to be trusted by industries that demand precision and excellence.

Our Expertise

  • Delivering innovative HVAC and sheet metal solutions for high-stakes projects
  • Excelling in complex projects with precision and efficiency
  • Using advanced tools and BIM technology for seamless collaboration
  • Solving challenges with tailored, results-driven solutions
  • Completing projects on time and within budget

Our Vision

We strive to lead the industry with innovation, quality and collaboration, creating safer and more efficient ventilation solutions for Chicago and beyond.

Our Mission

Developing partnerships, opportunities and Chicago’s future… together.

Our Values

PEOPLE MATTER MOST

Our greatest asset is our people and opportunity is created through meaningful relationships.

HAVING YOUR BACK

We stay loyal to the team in good times and in bad times.

OUTSIDE THE BOX

We are problem solvers who innovate and create limitless possibilities.

MASTERS OF OUR CRAFT

We build trust by doing quality work with the highest level of excellence.

DO WHAT YOU SAY

We have integrity by being honest and finishing the job.

Our Story

Founded in 1977 by Pat Hickey, Air Design Systems began as a woman-owned business with a clear mission: deliver exceptional craftsmanship, build trusted partnerships, and foster a culture rooted in integrity and innovation.

Overcoming early industry challenges, we built our foundation on perseverance, quality work, and a commitment to people.

From mentoring apprentices to developing long-term leaders, our team-first culture helped shape what is now one of the most experienced and respected sheet metal contractors in the Chicago region.

We specialize in complex, high-performance projects across healthcare, life sciences, mission-critical, industrial, hospitality, and multifamily sectors. Our diverse portfolio includes projects for the University of Chicago, Northwestern Medicine, Advocate Aurora Health, Northwestern University, Argonne National Laboratories, Fermi National Accelerator Laboratory, People’s Gas, Medline, Microsoft, Verizon, Sterling Bay, Hilton and the Obama Presidential Center.

Air Design Systems, Inc. Office and Shop c. 1979 Air Design Systems, Inc. Office and Shop c. 1979

With almost 50,000 sq ft of fabrication space, we deliver duct spooling, multi-trade prefabrication, and LEAN installations—supported by BIM coordination and in-house logistics to ensure quality, access, and cost control.

Nearly five decades later, our purpose remains clear: to set the standard for genuine collaboration and legendary workmanship. This commitment lives on through our core values—People Matter Most. We Do What We Say. We Think Outside the Box. We Are Masters of Our Craft. We Have Each Other’s Back. These principles have shaped our identity since day one, and they continue to guide every project, every relationship, and every future milestone we build.

Air Design Systems, Inc. Office and Shop Today Air Design Systems, Inc. Office and Shop Today
Partner with Chicago’s leading HVAC and sheet metal contractor

Let’s build success together

Meet the Leadership Team

Meet the experienced leaders who continue to build on nearly five decades of craftsmanship, innovation, and trusted partnerships.

Pat Hickey

Pat Hickey

President and Owner

Bridget Chojnacki (Hickey)

Bridget Chojnacki (Hickey)

Vice President and Owner

Julie Kulhanek (Hickey)

Julie Kulhanek (Hickey)

Secretary, Board of Directors

Jacob Chojnacki

Jacob Chojnacki

General manager

Ryan Cowdrey

Ryan Cowdrey

Operations Manager

Clark Roemmich

Clark Roemmich

Chief Financial Officer

Cathy Procaccio

Cathy Procaccio

Accounting Manager

Matthew Mele

Matthew Mele

Chief Growth Officer

Jeff DeSpain

Jeff DeSpain

Chief Estimator & Preconstruction Lead

Steve Ledbetter, Shop Superintendent

Steve Ledbetter

Shop Superintendent

Charlie McAlpine

Charlie McAlpine

Senior PM and Estimator

Jim DePasque

Jim DePasque

General Superintendent

Experts in complex HVAC and sheet metal projects

Bring our expertise to your next project