Witherup Fabrication and Erection, Inc. designs, fabricates, erects, and tests welded storage tanks of all sizes up to 7 million gallons. Our tanks are built to a variety of industry codes including API-650, API-620, AWWA D-100, ASME Section VIII, and NFPA. Materials of construction range from carbon to stainless alloys, and our scope typically includes specified stairs, platforms, coatings, insulation, and steel containment dikes as required.  Witherup offers a turnkey range of services to support any tank project from conception through completion. Witherup’s in-house engineering and fabrication facility provide the responsiveness and support needed for the highly effective and efficient field operations, which Witherup is noted for. Witherup also provides tank repair and modification services in accordance with API-653, and shop fabricates ASME pressure vessels.  Witherup is fully committed to safety. Our personnel have received extensive training and are fully capable of complying with any customer safety policies, and beyond.  Since 1954 Witherup has been providing customers with outstanding service and quality workmanship. No job is too large or too small for Witherup.