About Us


Interstate was founded in 1988 by Bob Weller in suburban Philadelphia, PA as a janitorial service company. Today, we are proud to remain a privately owned facility services company that has grown to offer services nationally.

Work Happy


We have grown the business on our dedication to both our clients and our staff. We believe in developing family relationships with our clients in order to create long-lasting partnerships.

At Interstate we believe it is our team which separates us from our competitors. Our philosophy is to create happy employees which in turn creates happy clients.

Our Trained Team


Our employees are highly trained, properly supervised, and take great pride in their work.

Interstate’s full time Safety and Training Manager provides on going safety training for the operations division. The training includes a comprehensive program for monthly on-site re-trainings.


Bob Weller

Founder and Chief Executive Officer

Rachel Weller

Chief Operations Officer

Kevin Weller

Executive Director of Operations

Chris Luther

Vice President of Sales

Lluvia Andrade

Director of Operations

Karen Thorp

Executive Director of Client Relations

Janet Frances

Executive Director of Business Development

Liliano Alvarez

Senior Regional Director of Operations

David Leeds

Director of Educational Services

Rafael Pinto

Director of Specialty Services

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