Port-A-John Rental Co. portable toilets, portajohn, port-a-john, portable toilets-westmoreland, portable toilets-pa Port-A-John Rental Company is a local, family owned and operated company, which has been in business since 1978. We have built our business by providing the very best service for our customers, at the lowest possible cost. We deliver the units sanitized and ready to use, equipped with fresh additive, toilet tissue, and hand sanitizer. We offer up-to-date portable toilets and professional equipment to do the service properly.