Plumbing Contractor Permit Requirements in Cranston, RI

Complete permit and license guide for starting a plumbing contractor in Cranston, Providence County, Rhode Island.

Verified 2026-09-06 5 stops $400–$1,200 est. 4–10 weeks to obtain all licenses
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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 stop

  1. EIN (Employer Identification Number)

    Required if you have employees or operate as an LLC or corporation. Free from the IRS.

    Official government source

    FreeImmediate (online application)

State of Rhode Island

1 stop

  1. Rhode Island Division of Taxation — Sales Tax Permit

    Required for all businesses selling tangible personal property or taxable services in Rhode Island. Rhode Island charges a 7% state sales tax with no local sales taxes. Register with the RI Division of Taxation online via the RI Tax Portal.

    Official government source

    FreeImmediate (online)

City of Cranston / Providence County

3 stops

  1. Rhode Island DLT Board of Examiners of Plumbers - Master Plumber License

    Plumbing contractors in Rhode Island must hold a Master Plumber license issued by the RI Department of Labor and Training's Professional Regulation unit (Board of Examiners of Plumbers and Irrigators). RI DOH does not license plumbers, and the Contractors' Registration and Licensing Board directs plumbing applicants to DLT. Requires documented apprenticeship hours and passing the state exam.

    Official government source

    $75 non-refundable application/exam processing fee, plus a $240 two-year license fee for Master Plumber, invoiced after a passing score of 70 or better. Journeyperson Plumber is $75 plus a $72 one-year fee.Not published by DLT; the license fee is invoiced after the exam is passed.

  2. No General Business License in Cranston

    Cranston issues no general business license, so a yoga studio needs none. The City Clerk Services Area licenses only specific regulated categories - amusement machine/game room, auto repair/auto body/used auto dealer, billiards, body works, bowling alley, carnival, door-to-door solicitation, employment agency, entertainment, firearm dealer, hawker/peddler, liquor, massage therapy, mobile food establishment, parade, private detective, secondhand dealer, short-term lender and temporary mass gathering. Fitness and yoga instruction is not a licensed category.

    Official government source

    No fee, because no general business license exists. Fees apply only to the specific regulated categories on the City Clerk's licensing portal.Not applicable - Cranston issues no general business license.

  3. Cranston Building Inspection - Plumbing Permit (per project)

    A plumbing permit must be pulled from the Cranston Building Inspection Department for each job, and inspections are required on completion. 'Providence County' has no government and issues no permits. The work must be performed by a tradesperson holding an RI Department of Labor and Training plumbing licence.

    Official government source

    Valuation-based per Cranston's permit fee schedule: $20.00 per $1,000 up to $10,000; $200 + $18.00 per $1,000 from $10,001 to $50,000; $920 + $16.00 per $1,000 above $50,000; $75.00 minimum fee. A state-mandated levy is added to every project - 0.2% of construction cost residential, capped at $100 for one- and two-family dwellings, or 0.1% commercial.Not published by the city; permits are filed through Cranston's online permitting portal.

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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