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Connecticut Contractor Licenses

The Connecticut Contractor Department of Consumer Protection (DCP), the Department of Public Health (DPH),and the Department of Administrative Services (DAS) are the official divisions in charge of issuing Contractors' Licenses. Those departments determine the qualifications of applicants before licensing, set forth conditions for licenses, and establish contractual limits. As a result, different requirements could apply depending on the profession and the type of work to be conducted. Most Connecticut Contractor Licenses require candidates to take and pass examinations as part of the application process.

Most of the applicants in the Department of Consumer Protection (DCP) must take an apprenticeship course related to the trade, pass the Business And Law Contractor Examination and the specific trade examination for the classification requested. PSI© is the testing company responsible for administering the tests necessary for getting a Connecticut Consumer Protection (DCP) Contractor License.

Below are the current Connecticut Licenses and Registrations with their specific scope of work, application procedures, contact details, and valuable educational resources.

Business and Law Examination

Examination required for some licenses under the Department of Consumer Protection, which tests general research skills in addition to category-specific knowledge

Accessibility (R-5)

Installation, repair, and maintenance work on defined equipment, excluding multi-floor platforms

Accessibility Journeyperson (R-6)

Must be employed by a Licensed Elevator Contractor to repair, install, and maintain work on defined equipment, excluding multi-floor platforms

Antenna Installation and Repair Technician (V-6)

Perform the installation of all antenna systems, including single and MATV

Asbestos

Work in asbestos abatement projects and employ workers to conduct such work

Asbestos Abatement Supervisor

Oversight of onsite asbestos abatement projects under federal law provisions and regulations

Asbestos Abatement Worker

Carries out all stages of asbestos abatement, including setting up the regulated zone with barriers, tape, and signage

Asbestos Consultant - Inspector

Identifies or collects bulk samples of suspected asbestos-containing material and could perform pre-renovation or pre-demolition inspections

Asbestos Consultant - Inspector / Management Planner

Assesses asbestos hazards and develops management plans based on data collected by inspectors, accredited as both Inspectors and Management Planners

Asbestos Consultant - Project Designer

Prepares plans and designs for asbestos abatement projects. Required for all asbestos response actions in schools except for spot repairs

Asbestos Consultant - Project Monitor

Oversees Asbestos Contractors' work on-site, conducts post-abatement inspections, final sampling, and waste air clearance tests

Boiler Maker (BM-1)

Alter, repair, and install exhaust and air systems at electric generation facilities, and power plants, also perform on-site fabrication of boiler and pressure vessels

Boiler Maker Journeyperson (BM-2)

Replace, repair, install, and alter exhaust and air systems at electric generation facilities, and on-site fabrication of boilers. Must work under a Licensed Boiler Maker (BM-1) Contractor

Certified Electronic Technician, Unrestricted (V-2)

Employed by a service dealer, performing installation, maintenance, repair, replacement, inspection, and modification of television and radio receiving equipment

Crane Operator

Safe operation of cranes or hoisting equipment, shift inspection and maneuvering skills apply load chart information and follow safe shutdown and securing procedures

Crane Operator Apprentice

Under direct supervision of a Licensed Operator, safely operate cranes or hoisting equipment, demonstrate shift inspection and maneuvering abilities, use load chart information, and adhere to safe shutdown and securing procedures

Demolition (A)

Engage in demolition operations, including the dismantling, wrecking, or removal of structures and buildings, not including the demolition of single-family residences or outbuildings exceeding thirty feet in height

Demolition (B)

Participate in demolition operations

Driller Trainee

Performs drilling work only while under the supervision of a Registered Contractor Driller. They may also do minimal cleaning work while not being supervised

Electrical Lines (L-1)

Electrical line construction for public and private companies, including high-voltage cable splicing and pulling wire for systems over 2,400 volts, and installation, maintenance, and repair of traffic signals and highway lighting

Electrical Lines Journeyperson (L-2)

Electrical line construction work such as the installation, maintenance, and repair for public and private companies, high-voltage cable splicing, traffic signal, and highway lighting. Required to be employed by a Licensed Electrical Lines (L-1) Contractor

Elevator Apprentice Trainee

Can only perform work under the direct supervision of a Licensed Elevator-related individual, with a limit of one trainee per person on site

Glazier (Flat) (FG-1)

Execute the installation, upkeep, or restoration of glass in structures intended for residential or commercial use

Glazier Journeyperson (Flat) (FG-2)

Upkeep, installation, or mending of glass in residential or commercial buildings, but only while working for a Licensed Contractor

Hearth Product Gas Limited (HPG-1)

Install, service, or repair propane or natural gas-fired fireplaces, stoves, inserts, log sets, and associated venting and piping. Does not include pressure regulating devices, fuel piping work, or servicing

Hearth Product Limited Journeyperson (HPG-2)

Repair, service, and install the associated venting and piping for propane or natural gas fireplaces. Excluding fuel piping, servicing fuel piping, and work related to pressure-regulating devices. Work must be performed while employed by a Licensed Contractor

Hoisting Equipment Operator

Operates motorized equipment for construction, demolition, or excavation work with a manufacturer's rated lifting capacity of over 5 tons

Home Improvement

Home improvement work on residential property, which includes any permanent change to the property such as driveways, swimming pools, garages, and landscaping, does not cover subcontracted work, commercial property, or property maintenance

Home Inspector (H-1)

Performs a thorough examination and provides a written assessment of two or more particular elements of a residential building

Lead Abatement

Lead hazard reduction through abatement, using only Certified Lead Abatement Supervisors and Workers as required by the Connecticut Department of Public Health

Lead Abatement - Supervisor Certification

Supervise lead abatement activities

Lead Abatement - Worker Certification

Removing or encapsulating lead-based paint or other lead-contaminated materials. Must work under the employment of a Licensed Lead Abatement Contractor

Lead Consultant

Lead hazard reduction consultation work by utilizing DPH-Certified Lead Inspectors, Risk Assessors, and Project Designers

Lead Inspector

Determines the presence of lead-based paint and surface coverings, lead in soil, dust, and drinking water using on-site testing methods and collects samples for laboratory analysis

Lead Inspector Risk Assessor

Assessing lead-based paint hazards, including lead hazards in paint, dust, drinking water, and soil. Must be employed by a Licensed Lead Consultant from the CT Department of Public Health

Lead Planner Project Designer

Designs lead abatement and management activities and works under a Lead Consultant Contractor who holds a valid license from the DPH

Limited Antenna Dish (V-5)

Maintenance, installation, repair, replacement, inspection, and modification of dish antennas and associated wiring and receiving equipment for dishes that are one meter or less in diameter

Limited Antenna Dish Technician (V-4)

Servicing, installing, maintaining, repairing, replacing, inspecting, and modifying dish antennas and related equipment for direct broadcast satellite service or fixed wireless signal transmission

Limited Conveyor (R-7)

Install, maintain, alter, or repair equipment, apparatus, or machines used for conveying materials. Conveyors must be fixed in place and cannot be freight elevators

Limited Conveyor Journeyperson (R-8)

Work on machines used to convey materials, while employed by a Licensed Contractor. The work can be limited to fixed conveyors, both permanent and temporary

Limited Direct Exchange Geothermal (W-9)

Constructs geothermal boreholes or systems using a direct exchange or direct expansion technology, including drilling, installation, repair, and maintenance of associated piping, casing, and heat transfer media up to the manifold connection

Limited Direct Exchange Geothermal Driller (W-10)

Piping, casing, and heat transfer media and construction of geothermal boreholes or systems. Work must be done while under employment of a Licensed Contractor

Limited Electrical (C-5)

Low voltage work for alarm, signal, audio and sound systems, and telephone-interconnect systems

Limited Electrical Journeyperson (C-6)

Low voltage work for alarm, signal, audio and sound systems, and telephone-interconnect systems. Can only perform this work while working for a Licensed Electrical Contractor

Limited Electrical (L-5)

Install and repair low voltage systems for alarm, signal, and audio/sound purposes. No telecommunication work except for connecting alarm systems to existing telephone lines for monitoring

Limited Electrical Journeyperson (L-6)

Low voltage work for alarm, signal, audio, and sound systems also installs interface wiring from an alarm system to an existing telephone connection for monitoring purposes while employed by a Licensed Limited Electrical (L-5) Contractor

Limited Electrical (T-1)

Work on telephone-interconnect systems that start from an outlet or connection installed previously

Limited Electrical Journeyperson (T-2)

Telephone-interconnect systems that begin from a pre-installed outlet or connection while employed by a Licensed Electrical Contractor

Limited Electrical Sign (C-7)

Setting up, repairing, inspecting, and checking electric signs that should start at a specific outlet or connection that is located immediately next to the sign

Limited Electrical Sign Journeyperson (C-8)

Electric signs only while employed by a Licensed Contractor

Limited (F-3)

Fire suppression systems, such as foam extinguishing systems, special hazard systems, and other liquid or gas fire suppression systems

Limited Gas and Oil Burner (B-1)

Install, maintain, and repair gas or oil burners for domestic and light commercial use, where a burner consuming less than five gallons per hour is considered as such

Limited Gas and Oil Burner Journeyperson (B-2)

Gas or oil installations for domestic and light commercial purposes

Limited Gas and Oil (B-3)

Perform the installation, maintenance, and repair of gas or oil burners

Limited Gas and Oil Journeyperson (B-4)

Setting up, repairing, and mending of any gas or oil-fired burner and only while employed by a Licensed Contractor

Limited Gasoline Tank, Piping, and Pump (P-9)

Piping related to petroleum tanks and pumping equipment

Limited Gasoline Tank, Piping, and Pump Journeyperson (P-8)

Petroleum tank piping and associated pumping equipment, which includes installation, repair, replacement, alteration, or maintenance, and must be performed by someone employed by a Licensed Contractor

Limited Geothermal (W-7)

Constructing geothermal boreholes or systems, up to the manifold connection, including installing, repairing, and maintaining piping, casing, heat transfer media, pumps, pump motors, and valves

Limited Geothermal Driller (W-8)

Drilling geothermal boreholes and associated equipment up to manifold connection

Limited Heating and Cooling (Valves) (VT-1)

Valves of all classes and types can be inspected, maintained, repaired, replaced, assembled, and disassembled

Limited Heating and Cooling Journeyperson (Valves) (VT-2)

All types and classes of valves. Must work under a Licensed Limited Heating and Cooling (Valves) (VT-1) Contractor

Limited Heating Cooling (MT-1)

Machining operations on permanent plant equipment at nuclear, fossil, or petrochemical facilities, including pipe prepping, milling, flange facing, tapping, and threading

Limited Heating Cooling Journeyperson (MT-2)

Machining operations, including pipe prepping, milling, and threading on permanent plant equipment at nuclear, fossil, or petrochemical facilities. Must be employed by a Licensed Limited Heating Cooling (MT-1) Contractor

Limited Heating Cooling (S-9)

Hot water or steam heating systems for buildings not exceeding three stories, and some cooling systems, also the installation and service of oil burners or natural gas piping

Limited Heating Cooling Journeyperson (S-10)

Installation and servicing of heating and cooling systems for buildings under 3 stories and cooling installation up to 35 tons. Must be employed by a Limited Heating Cooling (S-9)

Limited Heating-Cooling (D-3)

Refrigeration systems used in food storage, air conditioning, or specialized process systems

Limited Heating-Cooling Journeyperson (D-4)

Refrigeration systems in food storage, air conditioning, and specialized process systems

Limited Heating, Cooling and Piping (S-3)

Heating systems, including boilers, pumps, and oil burners, as well as hot/chilled/condenser water and steam piping in air conditioning systems; Does not cover sheet metal work or refrigeration systems

Limited Heating, Cooling, and Piping Journeyperson (S-4)

Heating systems, boilers, steam equipment, and oil burners install certain types of piping in air conditioning systems, but only under the employment of a Licensed Limited Heating, Cooling, and Piping S-3 Contractor

Limited Heating, Hot Water, and Steam (S-5)

Hot water or steam heating systems in buildings up to three stories high and steam pressure not exceeding 15 pounds, does not include the installation or servicing of any size of oil burners

Limited Heating, Hot Water, and Steam Journeyperson (S-6)

Hot water or steam heating systems for buildings not exceeding three stories, but only while employed by a Limited Heating, Hot Water, and Steam (S-5) Contractor

Limited Heating, Piping, and Cooling (G-1)

Gas piping systems, approved gas appliances, and accessories for both LP gas supplied by gas containers and natural gas

Limited Heating, Piping, and Cooling Journeyperson (G-2)

Servicing gas piping systems, appliances, and accessories, including installation, repair, replacement, alteration, and maintenance, for both LP gas supplied by gas containers and natural gas while employed by a Licensed Contractor for such work

Limited Hoists, Cranes, and Lifts (R-9)

Install, repair, maintain, or alter hoists, overhead hoists, lifts, cranes, monorails, and underhung cranes. Excluding freight elevator work

Limited Hoists, Cranes, and Lifts Journeyperson (R-10)

Install, maintain, alter, or repair equipment used to hoist or lift materials, such as hoists, lifts, or cranes, but only while employed by a Licensed Contractor. The license does not cover work on freight elevators or cranes

Limited (J-1)

Perform work only related to water conditioning and domestic water pumps

Limited Journeyperson (F-4)

Works on various fire suppression systems such as foam, water spray, carbon dioxide, dry chemical, halon, and other liquid or gas systems, while employed by a Licensed Contractor

Limited Journeyperson (S-8)

Work on hot water or steam heating systems for buildings, including the servicing and installation of oil burners, gas piping, and burners while being employed under a Licensed Contractor

Limited Lawn Sprinkler (J-3)

Maintenance, repair, alteration, replacement or installation of lawn sprinkler systems

Limited Lawn Sprinkler Journeyperson (J-4)

Installation, repair, replacement, alteration, and maintenance of lawn sprinkler systems, but only while employed by a Licensed Plumbing Contractor

Limited Multipurpose Residential Sprinkler (F-5)

Install, repair, maintain, and renovate multipurpose residential fire sprinkler systems in one- and two-family residential dwellings and mobile manufactured homes

Limited Multipurpose Residential Sprinkler Journeyperson (F-6)

Install, maintain, repair, and renovate multipurpose residential fire sprinkler systems in one- and two-family residential dwellings and mobile manufactured homes while in the employment of a Licensed Contractor

Limited Non-Water-Supply (W-3)

Construction of non-water-supply wells and installation, repair, and maintenance of associated equipment

Limited Non-Water-Supply Driller (W-4)

Construct non-water-supply wells and perform related work on pumps, piping, valves, electric controls, and tanks. The work can only be done while employed by a Licensed Contractor

Limited Operating Engineer Journeyperson (OE-2)

Manipulating, controlling, and monitoring heating, air conditioning, refrigeration systems, and boilers, but not replacements or revisions to existing piping. The work must be done while employed by a Licensed Contractor or Building Owner

Limited Process Piping (PP-1)

Process piping, used directly in the production of chemicals or products for human consumption

Limited Process Piping Journeyperson (PP-2)

Process piping, used in the production of a product for human consumption, only while employed by a Licensed Contractor

Limited (S-7)

Steam pressure and hot water or steam heating systems for buildings. Installation and servicing of oil burners, gas burners, and piping

Limited Sewer, Storm, and Water (P-7)

Water, sewer, and storm lines from the utility responsibility point to inside a structure work

Limited Sewer, Storm, and Water Journeyperson (P-6)

Installing pipes for water, sewer, and storm lines, starting from the utility responsibility point to the inside of a building, but only employed by a Licensed Contractor

Limited Sheet Metal Hood Systems (SM-5)

Work on ferrous and nonferrous ductwork systems for hood ductwork systems, excluding pneumatic conveyance systems

Limited Sheet Metal Journeyperson Hood Systems (SM-6)

Ferrous and nonferrous ductwork systems for hood ductwork systems, excluding pneumatic conveyance systems, the work must be done under the employment of a Licensed Contractor

Limited Sheet Metal (SM-1)

Limited work with any size duct system, excluding pneumatic conveyance systems

Limited Sheet Metal Journeyperson (SM-2)

Erection, repair, placement, or alteration of any ductwork system, for ductwork systems of any size and type, does not include pneumatic conveyance systems, only while in the employment of a Licensed Contractor

Limited Sheet Metal Residential/Light Commercial (SM-3)

Ferrous and nonferrous ductwork systems for residential and light commercial buildings with specific limitations on size. Pneumatic conveyance systems are not included

Limited Sheet Metal Residential/Light Commercial Journeyperson (SM-4)

Not including pneumatic conveyance systems, works on ferrous and nonferrous ductwork systems for residential and light commercial buildings must be done under the employment of a Licensed Contractor

Limited Solar Electric (PV-1)

Services in photovoltaic and wind generation systems for solar electric systems

Limited Solar Electric Journeyperson (PV-2)

Limited work on photovoltaic or wind generation systems, including storage and distribution of such energy, while employed by a Licensed Contractor

Limited Spa and Pool (SP-1)

Plumbing, heating, and electrical work for maintaining and repairing swimming pools, hot tubs, and spas

Limited Spa and Pool Journeyperson (SP-2)

Swimming pool and spas services only while the licensee is in the employment of an SP-1 Licensed Contractor

Limited Warm Air, Air Conditioning and Refrigeration System (D-1)

Services and alter warm air, AC, and refrigeration systems, including necessary piping and associated pumping equipment, excludes oil burner installation and servicing

Limited Warm Air, Air Conditioning and Refrigeration System Journeyperson (D-2)

Installation, repair, replacement, maintenance, and alteration of warm air, air conditioning, and refrigeration systems, excluding oil burners. Work must be completed while employed by a Licensed Contractor

Limited Welding (G-9)

Limited to welding process for pipe and associated fittings and materials

Limited Welding Journeyperson (G-8)

Perform limited welding work on pipes and associated fittings materials only while working for a Licensed Contractor

Limited Well Casing Extension (W-5)

Well casing extension, repair, and maintenance work is limited only to the well casing extension and does not include any other parts of the well

Limited Well Casing Extension Journeyperson (W-6)

Extension work and casing service only while employed by a Licensed Contractor

Limited Well Pumps and Piping Journeyperson (J-2)

Work limited to domestic water pumps and water conditioning only while in the employment of a Licensed Contractor

Maintenance and Repair Trainees Cleaning and Backwash

Work on the draining, acid washing, and backwash filtration of a swimming pool under the direct supervision of a Licensed Swimming Pool Maintenance and Repair Contractor or Journeyman

Major

Operate in construction, repair, alteration, or dismantling of structures or additions that exceed threshold limits

Master Antenna Installation and Repair Dealer (V-7)

Engage in Master Antenna work, including the installation of any type of single, antenna, and MATV systems

Mechanical

Provide plumbing, cooling, heating, and piping work services to the public

Medical Gas & Vacuum Systems (MG-1)

Construction, installation, alteration, repair, or maintenance of gas and vacuum systems and equipment used solely to transport gases for medical purposes

Medical Gas & Vacuum Systems (MG-2)

Engage in the construction, installation, alteration, repair, or maintenance of gas, vacuum systems, and equipment used solely to transport gases for medical purposes to remove liquids, air gases, or solids from such systems

New Home Construction

Any business or person that constructs a new home or contracts with a consumer to sell a new home or any portion of it before occupancy

Public Service Gas Technician

Engage in the supervision or performance of gas service work. This includes the repair, alteration, or maintenance of equipment, appliances, accessories, or fixtures within or adjacent to a building or structure in connection with the utilization of gas supplied by a public service company

Details: Written by Ana Chavarro; Published: April 27, 2023; Last Updated: August 11, 2023

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Connecticut Contractor Licenses