Connecticut Licensing Overview

  • Connecticut contracting is regulated on the state level by the Dept. of Consumer Protection.
  • Home Improvement Contractors, New Home Construction Contractors, and Major Contractors (residential & commercial construction) must be licensed by submitting a proper application. No exams are required for these classifications.
  • Occupational Trade licenses, including Electrical, Plumbing, and HVAC, require passing both the CT Business and Law exam and a trade exam. An application for pre-approval must be submitted to PSI before exams can be scheduled and taken.
  • Information regarding exam details, reference materials, experience requirements, reciprocity, and other requirements for obtaining and maintaining a license are available by selecting the license links found below.

Connecticut Commercial

Commercial

Connecticut Limited Contractor (S7)

The holder of this license may perform only work limited to hot water or steam heating systems for buildings not over three stories high with a total heating load not exceeding 500,000 BTU's and steam pressure not exceeding fifteen pounds. This license also covers the servicing and installation of oil burners handling up to five gallons per hour, as well as gas burners and gas piping for the work covered by this license. The requirements to qualify for this license examination shall be two (2) years as a properly licensed journeyperson or equivalent experience and training.

We offer custom training options for the Connecticut Limited Contractor (S7) training built around your schedule. Find out now what options we have available.

Commercial

Limited Contractor (G9)

We offer custom training options for the Limited Contractor (G9) training built around your schedule. Find out now what options we have available.

Connecticut Business and Law

Business and Law

Connecticut Business and Law Examination

The Business and Law Examination is required for ALL Contractor/Dealer Tech Licenses.

We offer custom training options for the Connecticut Business and Law Examination training built around your schedule. Find out now what options we have available.

Connecticut Electrical

Electrical

Connecticut Electrical Lines Contractor (L1)

We offer custom training options for the Connecticut Electrical Lines Contractor (L1) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Electrical Lines Journeyperson (L2)

Electricians must take at least seven hours of continuing education courses each year before license renewal.

We offer custom training options for the Connecticut Electrical Lines Journeyperson (L2) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Contractor (C5)

The holder of this license may perform only work limited to low voltage, alarm or signal work, audio and sound systems, and telephone-interconnect. The voltage of any system is not to exceed forty-eight (48) volts or five (5) amperes where such work commences at an outlet receptacle or connection previously installed by a person holding the proper electrical license.

We offer custom training options for the Connecticut Limited Electrical Contractor (C5) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Contractor (L5)

Electricians must take at least seven hours of continuing education courses each year before license renewal.

We offer custom training options for the Connecticut Limited Electrical Contractor (L5) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Contractor (T1)

Electricians must take at least seven hours of continuing education courses each year before license renewal.

We offer custom training options for the Connecticut Limited Electrical Contractor (T1) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Journeyperson (C6)

The holder of this license may perform only work as defined for C-5 category and only while in the employ of a licensed electrical contractor. The requirements to qualify for this license exam shall be the completion of a registered apprenticeship program or at least four (4) years of equivalent experience and training. Examination Information:

We offer custom training options for the Connecticut Limited Electrical Journeyperson (C6) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Journeyperson (L6)

The holder of this license may perform only work limited to low voltage, alarm or signal work, audio and sound systems, and only while in the employ of a contractor licensed for such work. The installation or repair of any telecommunication work is not authorized with the exception of the interface wiring from an alarm system to an existing telephone connection for monitoring purposes. The voltage of the system is not to exceed 25 volts or five amperes where such work commences at an outlet receptacle or connection previously installed by a person holding the proper electrical license.

We offer custom training options for the Connecticut Limited Electrical Journeyperson (L6) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Journeyperson (T2)

Electricians must take at least seven hours of continuing education courses each year before license renewal.

We offer custom training options for the Connecticut Limited Electrical Journeyperson (T2) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Sign Contractor (C7)

Electricians must take at least seven hours of continuing education courses each year before license renewal.

We offer custom training options for the Connecticut Limited Electrical Sign Contractor (C7) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Limited Electrical Sign Journeyperson (C8)

Electricians must take at least seven hours of continuing education courses each year before license renewal.

We offer custom training options for the Connecticut Limited Electrical Sign Journeyperson (C8) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Unlimited Electrical Contractor (E1)

The holder of this license shall be permitted to do all electrical work as defined in section 20-330 of the general statutes. The requirements to qualify for this license exam shall be two (2) years as an unlimited licensed journeyperson or at least six (6) years of equivalent experience and training.

We offer custom training options for the Connecticut Unlimited Electrical Contractor (E1) training built around your schedule. Find out now what options we have available.

Electrical

Connecticut Unlimited Electrical JourneyPerson (E2)

The holder of this license shall be permitted to do all electrical work as defined in section 20-330 of the Connecticut General Statutes, and only while in the employment of a properly licensed contractor. The requirement to qualify for this license exam shall be the completion of a registered apprenticeship program or at least four (4) years of equivalent experience and training.

We offer custom training options for the Connecticut Unlimited Electrical JourneyPerson (E2) training built around your schedule. Find out now what options we have available.

Connecticut HVAC and Mechanical

HVAC and Mechanical

Connecticut Limited Journeyperson (S8)

We offer custom training options for the Connecticut Limited Journeyperson (S8) training built around your schedule. Find out now what options we have available.

HVAC and Mechanical

Connecticut Limited Warm Air, A/C or Refrigeration System Journeyperson (D2)

The holder of this license may perform only work limited to the installation, repair, replacement, maintenance or alteration of any warm air, air conditioning and refrigeration system, including necessary piping for the conveyance of heating or cooling media and associated pumping equipment.  This license does not include the installation or servicing of oil burners of any size. 

We offer custom training options for the Connecticut Limited Warm Air, A/C or Refrigeration System Journeyperson (D2) training built around your schedule. Find out now what options we have available.

HVAC and Mechanical

Connecticut Unlimited Heating, Piping, and Cooling Contractor (S1)

The holder of this license may do all heating, piping and cooling work as defined in section 20-330 of the Connecticut General Statutes. The requirements to qualify for this license examination shall be two (2) years as a properly licensed journeyperson or equivalent experience and training.

We offer custom training options for the Connecticut Unlimited Heating, Piping, and Cooling Contractor (S1) training built around your schedule. Find out now what options we have available.

HVAC and Mechanical

Connecticut Unlimited Heating, Piping & Cooling Journeyperson (S2)

The holder of this license may do all heating, piping and cooling work as so defined only while in the employ of a licensed contractor. The requirements to qualify for this license examination shall be the completion of a registered apprenticeship program or equivalent experience and training.

We offer custom training options for the Connecticut Unlimited Heating, Piping & Cooling Journeyperson (S2) training built around your schedule. Find out now what options we have available.

Connecticut Plumbing

Plumbing

Limited Journeyperson (G8)

We offer custom training options for the Limited Journeyperson (G8) training built around your schedule. Find out now what options we have available.

Connecticut Specialty Trades

Specialty Trades

Connecticut Limited Gas and Oil, All Applications (B3)

The holder of this license may perform the installing, servicing and repairing of any gas or oil fired burners. The requirements to qualify for this license examination shall be two (2) years as a properly licensed journeyperson or equivalent experience and training.

We offer custom training options for the Connecticut Limited Gas and Oil, All Applications (B3) training built around your schedule. Find out now what options we have available.

Specialty Trades

Connecticut Limited Gas and Oil Burner Contractor (B1)

The holder of this license may perform only work of installing, servicing and repairing of gas or oil burners for domestic and light commercial installations. A domestic or light commercial burner shall be considered as one consuming five gallons or less per hour.

We offer custom training options for the Connecticut Limited Gas and Oil Burner Contractor (B1) training built around your schedule. Find out now what options we have available.

Specialty Trades

Connecticut Limited Gas and Oil Burner Journeyperson (B2)

The holder of this license may perform only work of installing, servicing and repairing of gas or oil for domestic and light commercial installations as so defined in subsection (i) and only while in the employ of a contractor licensed for such work.

We offer custom training options for the Connecticut Limited Gas and Oil Burner Journeyperson (B2) training built around your schedule. Find out now what options we have available.

Specialty Trades

Connecticut Limited Gas and Oil Journeyperson (B4)

The holder of this license may perform the installing, servicing and repairing of any gas or oil fired burner and only while in the employ of a contractor licensed for such work. The requirements to qualify for this license examination shall be the completion of a registered apprenticeship program or equivalent experience and training.

We offer custom training options for the Connecticut Limited Gas and Oil Journeyperson (B4) training built around your schedule. Find out now what options we have available.

Specialty Trades

Limited Natural and LP Gas Contractor (G1)

The holder of this license may perform only that work for the installation, repair, replacement, alteration, and maintenance of gas piping systems and approved gas appliances, gas utilization equipment and accessories for use with LP gas supplied by gas containers and/or natural gas. The requirements to qualify for this license examination shall be two (2) years as a properly licensed journeyperson or equivalent experience and training.

We offer custom training options for the Limited Natural and LP Gas Contractor (G1) training built around your schedule. Find out now what options we have available.

Specialty Trades

Limited Natural and LP-Gas Journeyperson (G2)

We offer custom training options for the Limited Natural and LP-Gas Journeyperson (G2) training built around your schedule. Find out now what options we have available.