Bathroom Remodel Requirements in Connecticut

01 The requirements, sourced

• Home improvement registration required before holding out as a contractor (§ 20-420) — § 20-420(a) verbatim: 'No person shall hold such person out to be a contractor or salesperson without first obtaining a certificate of registration from the commissioner as provided in this chapter.' DCP's application page states the same duty: 'Under the Connecticut Home Improvement Act, an individual and/or business is required to register with the Department of Consumer Protection if they are contracting with a consumer to perform work on residential property.' § 20-427(b)(5) makes it an offence to 'offer to make or make any home improvement without having a current certificate of registration'. S-CT-CGA-400
• The home improvement contract is unenforceable unless it carries the nine § 20-429 elements and the three-day cancellation — § 20-429(a)(1)(A) verbatim: 'No home improvement contract shall be valid or enforceable against an owner unless it: (i) Is in writing, (ii) is signed by the owner and the contractor, (iii) contains the entire agreement between the owner and the contractor, (iv) contains the date of the transaction, (v) contains the name and address of the contractor and the contractor's registration number, (vi) contains a notice of the owner's cancellation rights in accordance with the provisions of chapter 740, (vii) contains a starting date and completion date, (viii) is entered into by a registered salesman or registered contractor, and (ix) includes a provision disclosing each corporation, limited liability company, partnership, sole proprietorship or other legal entity … in which the owner or owners of the home improvement contractor are or have been a shareholder, member, partner, or owner during the previous five years.' Each change must be in writing and signed by both parties; § 20-429(c) requires a completed copy delivered 'without charge … at the time such contract is executed.' DCP's 2025 release: 'The contract includes a Notice of the Customer's Right to Cancel which is within three days of signing the contract'; 'A customer can cancel any time up to midnight on the third business day. No work should be started during this cooling off period'; an emergency waiver is permitted. S-CT-CGA-400
• Plumbing: P-1 unlimited contractor (12,000 + 576) and P-2 employed journeyperson (8,000 + 576); individuals only — DCP scope page verbatim: 'P-1 UNLIMITED PLUMBING CONTRACTOR' after 'two (2) years as an unlimited licensed journeyperson or equivalent experience and training'; 'P-2 UNLIMITED JOURNEYPERSON PLUMBER', work allowed 'only while in the employ of a contractor licensed for such work'. Path pages: 'If you are applying for the P-1 license, 576 classroom hours and 12,000 hours of on-the-job training is required.'; 'If you are applying for the P-2 license, proof of 576 classroom hours AND 8,000 hours of-the-job training is required.' The licensing page adds: 'Only individuals can apply, company applications are not accepted' — and § 20-337 keeps ownership free while requiring that 'all the work and services set forth in section 20-330 shall be performed by persons licensed for such work'. S-CT-DCP-PLUMB-SCOPE
• Electrical: E-1 unlimited contractor (12,000 + 720 hours) and E-2 employed journeyperson (8,000 + 720) — DCP scope page verbatim: 'E-1 UNLIMITED ELECTRICAL CONTRACTOR'; 'E-2 UNLIMITED ELECTRICAL JOURNEYPERSON', work allowed 'and only while in the employment of a properly licensed contractor'. Path pages verbatim: 'If you are applying for the E-1 license, 720 classroom hours and 12,000 hours of on-the-job training is required.'; 'If you are applying for the E-2 license, proof of 720 classroom hours and 8,000 hours of the job training is required.' Restricted pairs on the same page: C-5/C-6 (low voltage, alarm/signal, audio/sound, telephone-interconnect), C-7/C-8 (signs), L-1/L-2 (lines), L-5/L-6 (limited low-voltage), T-1/T-2 (telephone-interconnect) and PV-1/PV-2 (solar). § 20-330(2) defines 'electrical work' and excludes 'low voltage wiring, not exceeding twenty-four volts, used within a lawn sprinkler system'. CONFLICT-CT-001: DCP's own 'Careers in the Trades' table prints 576 classroom hours for the E-2 on the same day these path pages printed 720 — both figures travel, neither is chosen. S-CT-DCP-ELEC-PATH
• Permits are municipal, must be in hand before the work, and licensed trade work on a permit must be done by licensees (§§ 20-338a–20-338c, 29-263) — § 20-338a verbatim: 'Any contractor who applies for a building permit from a local building official for any work required to be performed by a person licensed under the provisions of this chapter, shall cause such work to be performed by a person licensed under the provisions of this chapter.' § 20-338b: the permit application is signed by the licensed contractor or by an agent carrying an ORIGINAL letter on the contractor's letterhead — 'The letter shall not be a copy or a facsimile' — naming the municipality, job, start date, contractor, agent and every licence number; electronic applications are allowed (as amended by P.A. 23-114). § 20-338c: 'No person licensed pursuant to sections 20-330 to 20-341 … shall commence work … unless each applicable permit … has been obtained as required pursuant to local ordinances and the general statutes.' § 20-417h adds the new-home permit gate. DCP: 'Many home improvement projects will require a building permit from the town … The permit must be in hand before the work begins'; permit applications answer to § 29-263 and the State Building Code adopted under § 29-252; DAS maintains the local building-officials list. S-CT-DCP-BUILDING
• Plumbers: 5 hours every two years (unlimited), 3 hours for limited journeypersons, P-6/P-7/PP-1/PP-2 exempt — § 20-334d(c) verbatim (2026 supplement): the plumbing CE regulations 'shall require not more than a total of seven hours of accredited continuing professional education every two years, except in the event of significant changes to the building code, as approved by the International Code Council … the commissioner, at such commissioner's discretion, may require more'. § 20-334d(d): 'any person who has been issued a P-6, P-7, W-8 or W-9 license … shall not be required to meet the continuing education requirements'. DCP's page sets the operative numbers: 'Plumbing and Piping unlimited contractors - 5 credit hours every two years'; 'Plumbing and Piping limited journeyperson - 3 credit hours every two years'; 'For P-6, P-7, PP-1 and PP-2 license types: No continuing education is available at this time therefore these license holders are not obligated to obtain continuing education credits.' S-CT-DCP-CE-PLUMB

02 Which credentials this project can touch

Each row is one (project, classification, relation) triple the research record can source — the rendered sections and the seeded evidence can never disagree.

03 Deterministic rules applied

• CT-HIC-REGISTRATION
• CT-PLUMBING
• CT-ELECTRICAL
• CT-CONTINUING-EDUCATION
• CT-LOCAL-PERMITS

Connecticut carries 3 conflict rows — CONFLICT-CT-001 (E-2 classroom hours 720-vs-576, UNRESOLVED), CONFLICT-CT-002 (the $360 new-home composition) and CONFLICT-CT-003 (the $220 HIC label) — published beside every answer rather than resolved by guesswork.

04 What it costs

Municipal permit fees are LOCAL_AUTHORITY_REQUIRED and are not published here; the examination vendor price (PSI) is withheld by name.