RD&S functions as both a contractor and custom package fabricator/manufacturer. Our efficiency and 30+ years of experience in the industrial refrigeration industry result in excellent ROI for our customers. As a large industrial refrigeration contractor, we are design/build firm for both Natural Refrigerants (Ammonia and CO2) and Synthetic Refrigerants (R-134A, R507, R22, R-410, and other specialized refrigerants).