Alterman has the resources to complete the most complex projects. Our extensive line of credit with Frost National Bank remains fully available. Our bonding capacity, through the CNA Companies, is in excess of $150 million. Alterman's assets include a diversified equipment inventory, a fleet of more than 100 trucks and vans and our office, warehouse, and pre-fab facilities located on four acres in north central San Antonio.


By developing alliances with local vendors and subcontractors and tracking their performance, Alterman has gained responsive service at preferred prices. We watch the commodities market and negotiate inventory with favorable rates, giving us a significant advantage over the competition.


Alterman has access to a diverse spectrum of best practices by participating in the Electric Roundtable, a peer group of ten electrical contractors located throughout the United States. The Company gains valuable operating information through our involvement in peer reviews, critiques and discussion groups.


Disciplined in our operations, prudent business practices have maintained our financially sound track record. Alterman's commitment to customer success has resulted in an enduring history of excellence since 1923.


  • Multi million dollar line of credit, fully available
  • Bonding capacity in excess of $150 million
  • Diversified equipment inventory & facilities
  • Vendor alliances
  • Electric Roundtable peer group
  • Financially sound track record

Quality Performance Timely Completions Safe Operations Employee Owned Serving San Antonio for over 90 Years

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San Antonio Location:

14703 Jones Maltsberger
San Antonio, TX 78247
O: 210-496-6888
F: 210-496-7349

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Austin Location:

10100 N. Lamar Blvd.
Austin, TX 78753
O: 512-836-3950
F: 512-836-4624

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San Antonio’s leading electrical contractor since 1923.
Online Presence by: Benson Design