Air Pressure Damp-Proofing Service, Inc.

Air Pressure Damp-Proofing Service, Inc. was started in 1936 by Andrew Black and Incorporated in 1958. 

Mr. Black was instrumental in developing the current standards for damp-proofing and waterproofing applications.  He also ensured the quality of workmanship by having his employees become members of the Roofers' Union.  Air Pressure's employees have been member of Local 11 since 1936.

The glass gun used in the application of our Multi-ply fiberglass waterproofing system was developed in our shop and is patented.

The business has passed down through the generations to Ralph H. Black and his brother, the late Robert O. Black.  Though Ralph is still very involved in the business he has passed the reigns on to his son, Daniel R. (Buck) Black who currently runs the day-to-day operation.