Colorado to Pennsylvania: residential contractor license reciprocity

Why this level is Hybrid. Section 517.12 of the Act preempts most local licensing of home improvement contractors: "Registration under this act shall preclude any requirement of payment of a fee or registration or licensing of any home improvement contractor by any political subdivision. Political subdivisions shall be permitted to require building permits and local enforcement of the building code for that political subdivision, for which a reasonable fee may be charged." The preemption is not total. It leaves untouched a municipality's authority under the Pennsylvania Construction Code Act, workers' compensation requirements, licensing standards in effect on July 1, 2009 for electricians, plumbers and other trades that test or certify, and liability-insurance standards adopted before January 1, 2006. More importantly, the state registration only covers home improvement - so building a new house, or working on a residential building of three or more units, falls outside it and back into whatever the city requires.

Philadelphia. The Department of Licenses and Inspections draws the line in so many words: "You don't need this license if your business only does work on existing one-or-two-family dwellings and does not do work that requires a special trade license. Instead, the company must submit as a Home Improvement Contractor after registering with the State." A remodeler therefore registers with the Attorney General, then registers that PA number with L&I through eCLIPSE to pull permits; there is no additional city fee for it, but the company still needs a Business Income and Receipts Tax ID, a Commercial Activity License, current City taxes, and a Certificate of Insurance showing general liability of $500,000 per occurrence, automobile liability of $300,000 and workers' compensation of $100,000 per accident, $100,000 per employee and a $500,000 policy limit. Excavation under permits submitted on or after January 1, 2023 also needs an Excavation Contractor License. Build a new house, work on a larger residential building, or take on complete demolition, electrical, plumbing or fire suppression, and the state registration is no longer enough: that is the Philadelphia Contractor License at $126 a year, described at the general level.

Pittsburgh. The Department of Permits, Licenses and Inspections requires a General Contractor License for the construction of new one- or two-family dwellings and for renovations and additions to rental or investment residential properties, as well as for commercial work and demolition. The application takes a valid photo ID, a general liability certificate of at least $1,000,000 each occurrence and $2,000,000 general aggregate, a workers' compensation certificate, a Tax Compliance Letter from the City's Department of Finance, and an EPA Renovation, Repair and Painting (RRP) certification in lead-safe construction practices, which is good for five years. The license is $90 to obtain and $90 to renew each year under the 2026 fee schedule, expires 365 days from the date of issuance, and carries a 60-day grace period with a $50 late fee from day 31. There is no exam and no experience requirement. Applications run through OneStopPGH; PLI is at 412 Boulevard of the Allies, 412-255-2175.

Scranton. Code Enforcement issues a city Home Improvement Contractor License for residential work. The application takes the standard identification, indemnification, disclosure and affidavit items, a copy of the contractor's Pennsylvania Home Improvement Contractor registration certificate, and a reference letter from an employer or client. It costs $150 initially and $125 to renew, with a $50 late fee; renewals are due before your first permit of the calendar year or by March 31, whichever comes first. Work on a residential building of three or more units needs Scranton's General Contractor License instead.

Allegheny County. The county issues road and bridge, food facility, lead and asbestos, plumbing and pool permits, but no contractor license of any kind, so a residential contractor outside Pittsburgh city limits deals with the local municipality's code office.

Everywhere else. Most Pennsylvania municipalities license nothing and simply enforce the Uniform Construction Code through permits and inspections, which they may charge a reasonable fee for. Ask the local code office before you contract, and expect the state registration to be the only credential you are asked for.

Arriving from another state. There is no state examination to sit, nothing that a license from your last state can be exchanged for, and no shorter route for an experienced contractor. Register with the Office of Attorney General, carry the insurance, put your PA number on every advertisement, contract, estimate and proposal, and use written contracts that meet the Act's terms. Then add the city credential wherever you plan to build new homes or work beyond simple home improvement.

How local licensing works. There is no state contractor board, so each city, county or regional building department writes its own contractor ordinance under its building code. Class letters mean different things in different places, and holding a license in one Colorado jurisdiction does not let you pull permits in the next one. Most jurisdictions build the residential tier around the ICC National Standard Residential Building Contractor (C) examination, which is open book, multiple choice and delivered by Pearson VUE; the same exam appears under different ICC exam IDs (W13, F13, G13) because each jurisdiction adopts a different edition of the building code and requires a current one. Passing an ICC exam is not itself a license - it is a credential you then present to each building department, which also verifies your experience.

Denver. Licensing is two steps. The individual first earns a Residential Contractor Class C supervisor certificate, which covers erecting, adding to, altering or repairing one- and two-family dwellings, U occupancy buildings and attached single-unit dwellings (IRC townhouses). It requires two years of field work as a journeyman carpenter or construction foreman with foundation, framing and roofing experience, documented with notarized letters, plus ICC exam #F13 National Standard Residential Building Contractor C. The certificate costs $60 and renews every three years. The business then applies for the Residential Contractor Class C license, $250 for three years. Denver states that it "does not accept or reciprocate contractor licenses and/or certificates from other counties or states."

Colorado Springs, El Paso County and nearby towns (Pikes Peak Regional Building Department). PPRBD licenses for unincorporated El Paso County, Colorado Springs, Fountain, Manitou Springs, Green Mountain Falls, Monument, Palmer Lake, Calhan and Woodland Park. Building Contractor C (Home Builder) covers one- and two-family dwellings up to three stories plus accessory structures, and R-2 buildings of up to eight units and two stories; the license fee is $150 with a $50 non-refundable application fee. Building Contractor E covers residential accessory structures and interior nonstructural remodeling, $75. Applicants file three reference forms documenting experience, a liability insurance certificate naming PPRBD, a workers' compensation certificate or rejection of coverage, a Colorado certificate of good standing and a name-based judicial record check; the Licensing Committee and Board of Review act on each file. PPRBD accepts ICC National Standardized or ICC Colorado Standard exams passed on or after January 1, 2016 and states that "no out-of-state exams will be accepted."

Aurora. Residential Building Contractor "Requires ICC Residential Building Contractor 'C' Certification"; the supervisor license fee is $131 and the license fee is $235, and registration plus three job references are also required. Remodeling contractors register with three years of documented experience instead of taking an exam.

Fort Collins. The residential-only classes are D1 (single-family attached and detached, no more than two dwelling units, townhouses), D2 (detached garages and Group U Division 1 occupancies up to 1,000 sq ft), E(R) nonstructural residential alterations and MM. All of them require ICC exam G13, plus three project verifications, each with the permit and the final inspection or certificate of occupancy, signed by someone unconnected to the applicant's company. General liability of $1,000,000 per person and $2,000,000 per accident and aggregate is required. A new license with supervisor certificate is $300 for two years, including a $75 non-refundable application fee.

Boulder. Class C covers construction, alteration, wrecking or repair of any detached one- and two-family dwelling or townhome and requires the ICC C Contractors certificate. Boulder states that it "does not accept reciprocal licenses from other jurisdictions," and its license covers work inside city limits only. Fee amounts are published in Boulder's contractor license application and schedule of fees.

Jefferson County. For unincorporated Jefferson County, a Class C license (labeled 2018 G13) covers one- and two-family dwellings and accessory buildings. The county accepts "proof that you have passed an appropriate ICC exam within the last 3 years or ... a copy of a valid license issued from an ICC participating jurisdiction." The fee is $50 and the license renews annually.

Arapahoe County. Building Contractor Class C (residential) costs $180 and requires an ICC Class "C" certification or an equivalent certification from a recognized state or national certification entity. General liability of $1,000,000 per occurrence and $2,000,000 aggregate must name the county.

Lakewood. Contractors register with Public Works; class A-3 Residential covers new construction and remodeling. The registration page does not impose an exam on general contractors but asks A-1 and A-2 applicants to attach any ICC certifications held. The fee is $150 for the first probationary year and $400 for each subsequent three-year renewal.

Douglas County. Unincorporated Douglas County requires registration rather than a license and states that it "has no testing requirements." Registrants file the application, workers' compensation proof or an exemption statement and business liability insurance naming the Building Division; registration fees are currently waived and applications are processed in about two business days.

Out-of-state holders. No Colorado jurisdiction reviewed grants a residential contractor license on the strength of another state's license. Denver and Boulder say so expressly, and PPRBD will not accept out-of-state exam results. The practical route is to pass the ICC National Standard Residential Building Contractor (C) exam on a code edition the jurisdiction currently accepts, gather documented project experience and references, and then apply separately in each city or county where you intend to build. Jefferson County is the clearest exception: it will take a current license from another ICC participating jurisdiction in place of the exam. Confirm the class, exam code year and fee with the building department before applying, because these change independently in every jurisdiction.