Calculated Legacy Consulting Engineers (CLCE) is a San Antonio-based MEP engineering firm offering Mechanical, Electrical, Plumbing, and Commissioning services across Texas. As a subsidiary of Alderson and Associates, CLCE builds on a legacy of excellence dating back to 1985.

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We help clients optimize energy use, boost efficiency, and meet code requirements through expert design in HVAC, power systems, fire protection, and more—using cutting-edge tools like Trace 3D+, AutoCAD, and Revit.