About Us

Longero was founded in 1923 by Phil Longo and Nick Vallero as a partnership engaged in boiler repair and sheet metal work. At that time the company was known as Longero Boiler and Sheet Metal Works, Inc. In 1930, the company moved to 3410 Brighton Blvd., Denver, CO. In April 1958 the machinery and equipment were sold to T.E. Mattox and J.F. McCauley who changed the name to Longero, Inc. In 1980, the physical plant was expanded from 6000 to 17,500 square feet adding several overhead cranes. In 1988, the company was purchased by SLG, Inc. who doubled the annual sales of the company.

In June 1993 the company was purchased by Iron Mountain Industries who has continued the strong growth trend. The company more than doubled its sales volume in less than three years. This has been due to the assembly of a truly great team of professionals in every aspect of the business. As the company has grown, the need for a larger facility was identified in 1995. As a result the company moved to its current facility in November of 1997. This move more than doubled the manufacturing space and increased sorely needed hook height to 24 feet. The facility is now capable of fabricating an 80,000 pound fabrication.

Longero looks forward to serving your steel fabrication and forming needs for many years to come.

Mission Statement
To deliver to our customers the finest custom steel fabrication and forming in our chosen area of influence by providing superior quality, on-time delivery and professionalism. To support our employees with the finest management, facilities, and tools to accomplish their jobs and to compensate them as the finest craftsmen in their field.

Longero’s Facilities
Our facility is located at 5680 Pecos Street within unincorporated Adams County in NW Denver, CO. The office space consists of roughly 4000 square feet, and includes state of the art, real-time order tracking and CAD systems. The manufacturing space includes 30,000 square feet indoors and 35,000 square feet under crane with the ability to accommodate an additional 19,125 square feet of indoor manufacturing space if necessary. Our south bay is equipped with (2) 10-Ton cranes, our center bay is equipped with a 5-Ton and a 3-Ton crane. Our north bay is equipped with (2) 3-Ton cranes. If needed two additional cranes can be erected to handle twenty five tons each. Hook height in all bays is 24′. Our south bay can handle an 80,000 lb. fabrication. In addition, the manufacturing facility is surrounded by three acres of land.