Unsurpassed Excellence Since 1975

Trust and confidence are the foundation of every lasting client–vendor relationship. Trust and confidence are how we’ve kept many of our clients happy for years.

Diane Wieker

Diane has over 30 years of experience in the business environment. Diane has served on the Board of Directors and as Secretary/Treasurer for Sparking Klean Service, Inc. since 1984 and has served as President since September 2014.

As a licensed insurance agent in the State of Nebraska, she was Part-Owner, Vice President and Secretary/Treasurer of R. C. Schropp & Assoc., an insurance and employee benefits firm located in Omaha, NE from 1992 through 2004.

Diane is a volunteer on the Omaha Henry Doorly Zoo membership drive, is a member of the Safety Council of Nebraska as well as a member of the Omaha Chamber of Commerce.

Gary Wieker

Gary has been actively involved in building maintenance for more than 35 years, having successfully implemented cleaning programs for major commercial and industrial facilities. His primary focus in on sales and business development. In addition, Gary oversees all of SKS’s operations, conducting personal, on-site inspections and ongoing dialog with property managers and building supervisors in order to maintain the quality-of-service delivery.

He is a member of the Omaha Chamber of Commerce and the Building Owners and Managers Association (BOMA).

  • “The customer service and responsiveness of the day porters has never been better and the attention to detail and thoroughness of the night crew has been simply exceptional. We appreciate how often supervisors and staff members are always checking in with Denise, Sue and others, ensuring that nothing is overlooked.”

    Scott Moulton, Director of Properties

  • “Gary Wieker’s team took on this challenge and has done nothing but an excellent job of cleaning and sanitizing our facility. Gary surrounds himself with a team of qualified supervisors who get the job done. One needs to know that in my 22-years here at Duncan we had gone through several cleaning contractors. Until we met Gary we thought these contractors were all the same. Let me tell you they are not.”

    Harry Frye, Facility Manager

    Duncan Aviation
  • “Sparkling Klean is customer friendly and courteous to all tenants. We manage a building that requires cleaning during the day, while employees are working. The staff goes out of their way to do their work and not disturb the employees.”

    Susan K. Miller, Senior Real Estate Manager

    CBRE/MEGA, Part of the CBRE affiliate network
  • “Sparkling Klean is reasonably priced, reliable and trustworthy and I feel comfortable recommending their service to anyone. They do an excellent job, are always punctual, and offer the most competitive rates in town.”

    Cynthia L. Vacanti, Office Manager

    Ehrhart Griffin & Associates
  • “Sparkling Klean has been a great partner with Central States for nearly 30 years. We value the relationship, as well as the service and care, your management team and work crews have provided so professionally for all these years.”

    Jaime M. Amodeo, Vice President – Chief Investment Officer

    Central States Health & Life Co. of Omaha