United Insulated Structures (UISC, LLC) is a national design+build firm specializing in cold storage and food processing facilities.

Founded in 1966, United Insulated Structures (UISC, LLC) is a national design+build firm specializing in cold storage and food processing facilities. Success comes from the strength of our relationships. With an 80% repeat customer rate, our commitment to honesty and high-standards for quality have consistently earned us the trust of clients on projects large and small.

At United Insulated Structures, we team with you to deliver solutions that solve today’s facility challenges while anticipating tomorrows.  We have the know-how to fully understand your unique business requirements – especially around the need to achieve the lowest possible operating costs while optimizing energy efficiency and program flexibility.  Our style is to work with you collaboratively using an open-book approach to quickly design alternative solutions for you to choose from early in the design process.

As your “one-stop-shop,” we provide single source accountability.  This approach allows us to guarantee that the project is designed, engineered, and constructed with your project goals as the top priority while also achieving the earliest possible completion date. 

Key is our in-house team of architects, engineers, and construction managers, as well as our self-perform crews that specialize in the most critical components of the project…the building’s thermal envelope.  Complementing our team are proven specialists in material handling, MEP, and refrigeration systems. These independent professionals are “supplier agnostic” so that they can be free to recommend the solution that best fits your unique needs.


UISC, LLC is a wholly-owned subsidiary of Power Construction Company, LLC. Founded in 1926, Power Construction is a management-owned firm with a long history of successfully managing complex projects across multiple market sectors.  Well-known by its reputation for exceeding expectations, Power is also a company of financial strength and stability with construction revenues of more than $1 billion annually.

The combined company’s unique management-owned structure and values-based approach means that leadership is directly involved in your project, that employees build long-term careers, and that trade contractor relationships help deliver better value for clients.  It is also the backbone of company’s unyielding commitment to safety and exemplary EMR of .73 (which is well below the industry average of 1.0.)  Most importantly, it’s what drives our fundamental promise: to exceed expectations, every time.


Based upon our successful track record, significant net worth, and lack of corporate debt, we can, if necessary, secure a performance bond and labor and material bond from Travelers Casualty and Surety Company, with a rating of A+/XV, in a single project limit of $500 million and an aggregate amount in excess of $1 billion.  Insurance coverage includes $50 million in General Liability Umbrella and $15 million in Professional Liability Umbrella.

Areas Of Operation

Headquartered in Chicagoland, our area of operations spans coast to coast and beyond. This map illustrates our growing footprint of expertise throughout the United States.

Our History


United Insulated Structures Corporation is founded

As a young entrepreneur, Larry Lantero Sr. starts UISC, a successful specialty cold storage contractor in Chicago, IL.

First design+build as a general contractor

UISC completes first turn-key design+build project as a general contractor for United States Cold Storage.

UISC moves headquarters

UISC continues to expand its resources and moves to larger quarters in Berkeley, IL.

Larry Lantero, Jr. joins the team

Bringing his experience from a large general contracting company, Larry joins the family business and helps to transform UISC into a full-service general contractor offering turn key design+build services.

UISC brings design+build in-house

UISC shifts to in-house architectural and engineering resources to enhance the client experience.

UISC expands team and HQ space

UISC purchases and renovates the adjacent building to accommodate its growing employee base.

USIC Exceeds $50 Million in sales

A strong year and an enhanced design+build team pushes UISC above this milestone.

UISC has now completed projects in 30 states

Driven by exceptional work and customer service – plus national partnerships -- UISC continues to follow more clients into new geographic markets.

UISC celebrates 50 years in business

UISC is proud to celebrate 5 decades of designing and building cold storage and food processing facilities and looks forward to combining new technologies with tried-and-true service to carry us through the next 50 years.

UISC exceeds $100 million in sales for the first time

Industry growth and new technology power UISC continued success.

UISC completes first fully automated ASRS high rise freezer

UISC completes its 21st project for United States Cold Storage and it’s first fully automated ASRS high-rise freezer.

UISC + Power Construction

UISC joins forces with Chicago-based Power Construction Company to service the specialized needs of the cold storage and food processing industry and strengthen its ability to serve clients nationwide.