A Certified Small Business (760) 560-0100
T-Squared Engineering - We are committed to Excellence

Who We Are

At T-Squared Professional Engineers, Inc., excellence for today and tomorrow is our guiding philosophy. For us, excellence is expressed in developing trusted relationships with our clients who can count on timely production of construction documents and a consistent high level of communications.

Excellence is evident in our dedication to the sustainable design, green infrastructure, and energy efficient buildings. As a LEED® certified engineering company, T-Squared Professional Engineers, Inc., believes that a building should be designed and operated to enhance the environment for its intended users while reducing the energy and ecological impact on the surroundings both during construction and also in years of future operation.

Our Designs Focus on:

  • Efficiently using energy, water, and other resources
  • Protecting occupant health and improving employee productivity
  • Reducing waste, pollution and environmental degradation

Our Designs

Founded in 1992 T-Squared Professional  Engineers, Inc has successfully designed:

  • Schools
  • Health Care Institutes
  • Tenant Improvments
  • Office Buildings
  • Auto Dealers
  • Food Service Facilities
  • Retail Facilities
  • Correctional Facilities
  • Government & Municipal Buildings


P.E., C.I.P.E., N.C.E.E.S.,

president_tadayon.jpg Farzad Tadayon is President and Project Director for T-Squared Professional Engineers, Inc.,

As Chief Mechanical Engineer in charge of design, Mr. Tadayon oversees the activities of our outstanding professional engineers, designers and draftsmen.

A Registered Professional Mechanical Engineer in eight states, Farzad Tadayon has broad design expertise in the unique requirements of heating, ventilation, and air conditioning (HVAC) systems, along with piping and hydronic systems.

Mr. Tadayon oversees every project from the early preliminary stages through design completion. His emphasis on quality control and coordination with other disciplines has given T-Squared Professional Engineers, Inc. a reputation for superior engineering design.


T-Squared Professional Engineers, Inc
1340 Specialty Drive, Suite E
Vista, CA 92081

Tel: (760) 560-0100
Fax: (760) 560-0101

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