Agency Summary


Construction Sales Group, Inc is a Manufacturers’ Representative Sales Agency specializing in the sale of engineered materials and architecturally specified products to the construction industry. The firm was founded by Mark Kennedy in June 1990. Mark Kennedy and Jim Harduk function as the outside Sales Representatives for the Agency. Debbie Sterling is the Office Manager..

Our firm conducts sales activities in the geographic areas of Pennsylvania, New Jersey and Delaware. Construction Sales Group, Inc is headquartered in Yardley, Pennsylvania.

Construction Sales Group, Inc is a professional sales organization dedicated to providing the highest quality service, communication and technical assistance for our customers along with accurate, reliable and timely information to our principals. We recognize the need for strong technical support, a focused sales strategy and continuing customer communication to promote the growth of our products and principals. Construction Sales Group, Inc. is committed to growing the base business at existing accounts and developing new business opportunities and markets for our principals.

The strength of our firm hinges on our commitment to create a professional, dedicated and superior Manufacturers’ Sales Agency.   To help achieve these goals, we are staffed and supported by first rate office personnel and equipment.

Mark Kennedy

Mark Kennedy CSI, CDT

Mark Kennedy is a graduate of Drexel University with a BS in Commerce and Engineering. Mark has been selling in the construction industry for 25 years with an emphasis on specification driven products. Mark is active in many industry trade organizations including CSI, ACI and ICRI and has held a number of officer and board member positions in CSI.

Jim Harduk

Jim Harduk CSI, CCPR

Jim Harduk is a graduate of The Richard Stockton College of NJ with a BA in Sales & Marketing. Jim has been selling in the construction industry for the past 13 years and previously worked as a Superintendent and Project Manager for a Construction Company. Jim is an active member of CSI and previously served as Treasurer for the Philadelphia Chapter.

Debbie Sterling

Debbie Sterling

Debbie Sterling is the office manager for Constructions Sales Group.

Memberships Include:

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