Plumbing Contractor License in Connecticut: Requirements, Qualifier, Bond and Exams

Statewide.

Connecticut licenses plumbers through the Department of Consumer Protection's Plumbing and Piping Work Board — the P-2 Unlimited Journeyperson Plumber and the P-1 Unlimited Plumbing Contractor, plus limited classes — so the plumbing contractor license is a state credential, not a city-by-city one.

The structure matters for a business: the contractor license is an individual trade license — how that maps onto an LLC or corporation is not described on the pages we read — and a journeyperson may do all plumbing and piping work only while in the employ of a contractor licensed for such work.

DCP issues Connecticut's plumbing licenses through its Plumbing and Piping Work Board.

The unlimited pair is the P-2 Unlimited Journeyperson Plumber and the P-1 Unlimited Plumbing Contractor — the license for contracting at the unlimited level.

DCP also issues limited classes for narrower scopes of work: P-6 and P-7 for sewer, storm and water; P-8 and P-9 for gasoline tanks; J-classes for well pumps and lawn sprinklers; and SP-1 and SP-2 for spas and pools.

Which of the limited classes sit at the contractor level versus the journeyperson level was not detailed on the pages we read, so confirm the class you need with DCP.

In Connecticut the qualifier is the license holder.

Because the P-1 is an individual trade license, the person who qualifies your business is whoever holds the P-1. To qualify for the P-1 exam, the requirement is two years as an unlimited licensed journeyperson, or equivalent experience and training.

The journeyperson rung below has its own bar: P-2 eligibility is a completed registered apprenticeship or equivalent experience and training, and a P-2 holder may work only in the employ of a licensed contractor.

Every Connecticut trade license applicant must pass an exam, and exam fees are separate from the application — they are due to the exam vendor at registration.

Our research does not name the vendor for DCP's plumbing exams; ask DCP which vendor administers the exam before you book.

What the P-1 exam covers is not described on the pages we read, and our research did not verify a separate business-and-law exam for the P-1; the parallel HVAC contractor research records the same gap.

Our research did not find a bond or insurance minimum for the Connecticut plumbing contractor license on the DCP pages we read, and the parallel HVAC contractor research did not verify bond or insurance minimums either.

Treat that as a gap in our research, not a rule: ask DCP what bonding, insurance or proof of financial responsibility it requires before you bid, and confirm requirements with the town where the work is permitted.

The plumbing contractor application fee is $150, non-refundable, with exam fees paid separately to the exam vendor.

Licenses renew every year: all plumbing and pipefitting licenses expire on October 31, and renewal is $150 for contractors and $120 for journeypersons.

Continuing education runs on a two-year cycle — unlimited and limited plumbing contractors and unlimited journeypersons need 5 credit hours every two years, limited journeypersons need 3, and P-6, P-7, PP-1 and PP-2 holders currently have no CE requirement.

CE is due 3 months before the renewal deadline (by July 31 of the cycle year), is not required before the first renewal, and records must be kept 4 years for audit.

Our research did not confirm a reciprocity agreement covering Connecticut plumbing contractors; the parallel HVAC contractor research records reciprocity for Connecticut contractors as not verified as well.

The route the DCP pages we read do describe is the ordinary exam route — two years as an unlimited licensed journeyperson or equivalent experience and training — and our research notes record that DCP's heating-and-cooling license page references licensure by 'equivalent out of state license'.

We did not confirm an equivalent plumbing route, so ask DCP how your out-of-state license and experience transfer before you rely on them.

In Connecticut the question becomes what happens when your licensed individual leaves, because the contractor license is an individual trade license.

Our research did not find a DCP rule for replacing a departing licensee or for how long a business may keep contracting without one, so we cannot quote a notification deadline or grace period.

The constraint the research does establish sits on the crew: a P-2 journeyperson may do plumbing work only while in the employ of a contractor licensed for such work.

What that rule means while a business is between licensees — whether the crew can keep working, and for how long — is not covered by our research; ask DCP.

The parallel HVAC contractor research likewise did not verify qualifier-replacement rules.