A Certified Small Business (760) 560-0100

What We Do

Eco-Friendly Mechanical, Electrical & Plumbing Engineering Design

T-Squared Professional Engineers, Inc is a nationally recognized mechanical,electrical and plumbing engineering firm specializing in sustainability and energy efficient engineering and design services for commercial, institutional, education, residential, industrial, governmental, hospitality, retail, houses of worship, and healthcare facilities.

Green Building Design

Green building design is rightfully an important worldwide trend in construction. As LEED® Accredited professionals, we design energy efficient Heating, Ventilation and Air Conditioning that promote healthy indoor air, Electrical systems that minimize environmental disruption and Plumbing that promotes high water efficiency. Ease of maintenance and sustainability of each system is carefully considered in the design of every project.

revit-color-architectural-transparent-walls.jpgOur Designs Use State-Of-The-Art 3D CAD Computer Systems (Revit) To Insure

  • Integration Of The Latest Design Standards And Energy Saving Measures
  • The Highest Quality Computer Generated Construction BIM Documents
  • On Time Document Production
  • Time and Cost Savings During Construction
  • A High Level Of Communication


T Squared Professional Engineers understand the importance of Engineering Intelligence and proper implementation within design solutions. 

DID YOU KNOW…..Standards pursuant to the following organizations’ codes and regulations must be met before occupancy permits can be granted:

  • Occupational Safety and Health Administration
  • National Fire Protection Agency (NFPA)
  • 2013 Building Energy Efficiency Standards
  • California's Code of Regulations Title 24

Our dedicated Compliance Professionals provide regulatory compliance assurance and early-on design reviews to prevent project delays and unnecessary construction costs. With 25 years of experience, T Squared Compliance Professionals have a full understanding of how to create and review designs that meet Third Party Specification Codes to ensure your facility and equipment are compliant with Occupational Safety and Health Administration (OSHA) regulations and California Code of Regulations (CCR). We implement certifiable electric systems through Arc Flash Analysis and Acceptance Testing in order to:

  • Safeguard your business, facility, and employees
  • Increase Return on Investment
  • Guarantee optimal system performance
  • Reduce risk of regulatory non-compliance
  • Maximum energy efficiency and sustainability

What is Acceptance Testing?

Before building occupancy permits can be issued, California's 2013 Title 24 standards now require installed lighting control systems to be certified. A California Advanced Lighting Controls Training Program (CALCTP) Acceptance Technician is required to test electrical systems before permits are issued.

Our team of Compliance Consultants can help property owners, managers, engineers, designers and builders save energy and money by performing Acceptance Tests to optimize the efficiency and operational processes of advanced lighting systems.

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What is Arc Flash Analysis?

Arc Flash is a type of electrical explosion or discharge that results from an unexpected and unwanted release of energy within an electrical system that causes irreversible damage to equipment and fatal injures to employees. Arc Flash Hazard Analysis calculates the present degree of arc flash hazards.

The benefits of an Arc Flash Analysis include: increased reliability, protection, operating efficiency, and damage prevention from an electrical system.


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Highland Library LEED

Highland Library and Environmental Learning Center

Our Value to Your Facility

Our value is in our extensive experience and comprehensive knowledge of design criteria in numerous types of facilities. Because T-Squared has multi-disciplinary capabilities, we are uniquely qualified to synchronize these systems for coordinated implementation during construction, avoiding costly on-site modifications, and change orders.



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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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