About us

We are a leading pressure vessel fabricator with a reputable industry standing of over 35 years
Since its 1977 inception, Didion’s Mechanical, a family owned and operated business, has charted a strong, stable growth story as an American Society of Mechanical Engineers (ASME) code certified shop. Our focus on quality has helped us build a veritable reputation in the market.

As an A.S.M.E. code certified shop, we are current holders of the U, U2, U3, S, and PP stamps and the National Board R-repair stamp.Didion’s Mechanical can also certify equipment in accordance with the European Pressure Equipment Directive (P.E.D.), and stamp it with the CE stamp. This has made us a preferred pressure vessel fabricator in the Industry. Our Fabrication Capabilities Include:
• Pressure Vessels
• High Pressure Vessels
• Heat Exchangers
• Autoclaves
• Cryogenic Vessels
• Vacuum Chambers
• Process / Power Piping
• Large & Heavy Machining
• Weld Overlay / Clad Pressure Vessels
• Separators, Reactors, Columns, Etc