Plumbing Contractor Permit Requirements in New Haven, CT
Complete permit and license guide for starting a plumbing contractor in New Haven, New Haven County, Connecticut.
Not legal advice. Requirements may change — always verify with your local government authority before applying. Key agencies and fees on this page were re-checked against official government sources on .
Federal — start here
1 stopEIN (Employer Identification Number)
Required if you have employees or operate as an LLC or corporation. Free from the IRS.
Official government sourceFreeImmediate (online application)
Free
Immediate (online application)
State of Connecticut
1 stopConnecticut Department of Revenue Services — Sales Tax Permit
Required for all businesses selling tangible personal property or taxable services in Connecticut. Connecticut charges a 6.35% state sales tax and taxes certain services (broader base than many states). Register with the Connecticut Department of Revenue Services via myconneCT; a $100 registration fee applies.
Official government source$100 (registration fee)Immediate (online via myconneCT)
$100 (registration fee)
Immediate (online via myconneCT)
City of New Haven / New Haven County
3 stopsConnecticut Department of Consumer Protection - Plumbing and Piping Contractor License (P-1/P-2)
Plumbing contractors in Connecticut must have an individual holding a P-1 (unlimited) or P-2 (limited) plumbing and piping contractor license from the Department of Consumer Protection. Only individuals may apply, not companies. Applicants generally need experience as a licensed journeyperson and must pass the state exam, with exam fees paid separately to the testing vendor. Licenses expire annually on October 31.
Official government source$150 contractor application; $150 annual renewal (journeyperson $90 application, $120 renewal)Licenses expire every October 31; the license issues once the exam is passed and the application is approved
$150 contractor application; $150 annual renewal (journeyperson $90 application, $120 renewal)
Licenses expire every October 31; the license issues once the exam is passed and the application is approved
New Haven zoning compliance and category-specific licenses (no general business license)
New Haven issues no blanket general business license renewed annually and displayed at the place of business, and Connecticut has no statewide one. The city's Licenses & Permits index routes 'Business License' to the Permit & License Center, whose licences are strictly category-specific - Amusement, Auction and Auctioneer, Broker, Rooming House, Sales and Street Vendor/Peddler - with applications presented in person. What does apply to a business generally is zoning: the premises need a zoning permit or zoning compliance confirmation and a Certificate of Occupancy from the Office of Building Inspection & Enforcement under CGS Sec. 29-265. Note also that the department issuing building and licence approvals is the Office of Building Inspection & Enforcement, not Economic Development.
Official government sourceNo general business license fee exists; zoning, building and category-specific licence fees are set per category by New Haven's adopted fee schedulesA building permit must be issued or refused within 30 days of application (CGS Sec. 29-263(a)); Permit & License Center applications must be presented in person and are not issued same day
No general business license fee exists; zoning, building and category-specific licence fees are set per category by New Haven's adopted fee schedules
A building permit must be issued or refused within 30 days of application (CGS Sec. 29-263(a)); Permit & License Center applications must be presented in person and are not issued same day
New Haven Plumbing Permit (per project)
A separate plumbing permit must be pulled from the City of New Haven's Office of Building Inspection & Enforcement for each job, with inspections required on completion. Connecticut abolished county government in 1960, so no New Haven County permit exists. The permit is pulled by the licensed plumbing contractor doing the work - Connecticut licenses the plumbing trade at state level through the Department of Consumer Protection - and CGS Sec. 29-263(a) bars the building official from issuing a permit to a contractor required to be registered unless that contractor's name, business address and DCP registration number appear on the application.
Official government sourceSet by the municipality's adopted permit fee schedule and scaled to the declared value of the work; every Connecticut building permit also carries a state code-education fee assessed per $1,000 of declared construction value (CGS Sec. 29-263(b))The building official must issue or refuse the permit within 30 days of the application (CGS Sec. 29-263(a)); a final inspection is required when the work is complete
Set by the municipality's adopted permit fee schedule and scaled to the declared value of the work; every Connecticut building permit also carries a state code-education fee assessed per $1,000 of declared construction value (CGS Sec. 29-263(b))
The building official must issue or refuse the permit within 30 days of the application (CGS Sec. 29-263(a)); a final inspection is required when the work is complete
Terminus
Open for business — est. $400–$1,200 · 4–10 weeks to obtain all licenses
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Official Sources
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