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The Technical Training Institute


The Technical Training Institute How would you like to pass your licensing exam the first time? Did you know over 90% of The Technical Training Institute’s students pass their license exam the first time? We’re proud of our student success rate over the last 23 years.  Let us help you take the stress out of preparing for your contractor license exam.  We provide training for professionals in the electrical, HVAC, and plumbing trades.

We work with the NC contractor licensing boards, as well as offering custom training programs offsite, in a classroom setting, or at home in a virtual GoToMeeting course.  Since 1999, students have depended on our programs to get licensed and get to work!


Electrical licensing and applications

In North Carolina, you submit an application to the Electrical Board of Examiners before you take a license exam.

To begin the NC Electrical Licensing process, click on the link to download the electrical license application, or to download the board’s Examination Guidelines, or visit the Electrical Board’s website.

Electrical Switchboard Testing

Plumbing & HVAC Licensing and applications

In North Carolina, you submit an application to the Plumbing, Heating, Fuel Gas & Fire Sprinkler Board of Examiners before you take a licensing exam.

For more information about NC Contractor Licensing and the field experience required to qualify, click on the link to download the license application form for Plumbing and HVAC licenses, or visit the State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors website.

Plumbing & HVAC


Order Codebooks for Your Exam

we’ve simplified licensing

order all the books you need,  

from our bookstore

at substantial savings!  


Visit our contractor bookstore to order your complete set of plumbing, heating or electrical codebooks.


Order the Codebooks for Your Exam


In-Person and GoToMeeting Courses

Since April 2020 we’ve been delivering live prep courses on the world-recognized GoToMeeting platform.  Students have been attending our exam prep courses from any location with Wi-Fi access.

Pick your class, order your books and attend class from the comfort of your home, saving time and cash while keeping your career goals on track.


In-Person and GoToMeeting Courses


Join our live, instructor-led training from any location with an internet connection. Participate remotely and experience the same collaboration, instructor interaction, and learning benefits as if you were in the classroom!  

Pick your class, order your books and attend class from the comfort of your home


Ready to get licensed?

Sign-up for a prep class or study at home....

What We Do

  • NC Heating H-1, H-2, H-3-1
  • NC Plumbing P-I  
  • Specialty Electrical SP-PH
  • NC Limited Electrical
  • NC Intermediate Electrical
  • NC Unlimited Electrical
  • Electrical CE
  • Residential HVAC Design Services


**INDUSTRY UPDATE** North Carolina Licensed HVAC Contractors: House Bill 243

New Law Temporarily Lowers R-Values for Duct Insulation to R-4.2

Governor Roy Cooper signed this legislation yesterday, March 17, 2022

House Bill 243 – Duct Notice 3-17-2022


This new law temporarily changes the Commercial and Residential insulation R-value for ducts installed in ventilated and nonventilated non-conditioned spaces (crawlspaces and attics). 

Based on this legislation, contractors can install ducts in Residential ventilated and non-ventilated unconditioned spaces (crawlspaces and attics) with a minimum of R-4.2 insulation. This law will allow for reduced duct insulations values for a period of two years and is now in effect.

  • Any changes in duct insulation values must be included in your load calculation
  • If you are questioned by an inspection department in reference to the duct R-values, please refer them to House Bill 243
  • That actual language for this legislation can be viewed at the following link:  https://www.ncleg.gov/BillLookUp/2021/h243
  • Once you click on the link, you will need to click on “SL 2022-6” in the tool bar on the left side of the webpage. The duct work language is on pages 46 – 47
  • For changes to commercial projects please see the specifics in this legislation