Since 1978 Air-Pak, PSI has been providing general contracting, construction management and pre-engineered metal building services to a broad range of commercial and industrial clients throughout the United States. Anchored by loyal employees who are dedicated to providing superior service, and grounded in the philosophy that honesty and integrity are as important as the bottom line, Air-Pak Products & Services Inc. has enjoyed an impeccable reputation for 30 years. We have never failed to complete a project and have never had a bond claim.