Contractor License from Washington to Illinois: Does It Transfer? (2026)
Last verified: 2026-08-07 · source: Illinois Department of Public Health — Plumbing Program (general contractors are licensed municipally) ↗
Illinois does not offer contractor reciprocity with any state. Expect a full application to the Illinois Department of Public Health — Plumbing Program (general contractors are licensed municipally), including Illinois's exams.
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Verdict
No reciprocity offered
Illinois recognizes no state's contractor license, so coming from Washington changes nothing — it is a full application either way. The practical plan: identify which Illinois license class matches your work, book the business/law and trade exams, and prepare the financial statement and bond early. Nothing about your Washington license is wasted, but none of it substitutes for Illinois's process.
What changes, Washington → Illinois
| Washington (current) | Illinois (destination) | |
|---|---|---|
| Application fee | $114.6–$242.7 (Electrical reciprocal 01 General Journey Level application $114.60, of which $44.20 is non-refundable after submission; online payment is not available, checks only. Plumber journey-level certification $242.70 on the Idaho reciprocal path (the $202.10 exam fee is avoided). Contractor registration, which is a separate non-reciprocal filing, is $150.20.) | No reciprocity/endorsement fee exists because there is no reciprocity path; standard plumber licensing fees apply and were not captured. |
| Processing time | L&I does not publish a processing-time range for reciprocal trade applications; set null rather than estimated. | Not applicable — no reciprocity path. |
| Licensing authority | Washington State Department of Labor & Industries (L&I) — Electrical Licensing & Certification, Plumber Certification, and Contractor Registration | Illinois Department of Public Health — Plumbing Program (general contractors are licensed municipally) |
The destination column is what you must satisfy — Illinois sets the rules for this move.
Step by step
- Review Illinois's initial-licensure requirements on the Illinois Department of Public Health — Plumbing Program (general contractors are licensed municipally) website (linked below).
- Expect to meet Illinois's education/experience requirements and pass its required exams — prior out-of-state licensure may still count toward experience.
- Submit the standard (new applicant) application with fees (No reciprocity/endorsement fee exists because there is no reciprocity path; standard plumber licensing fees apply and were not captured.).
- Allow Not applicable — no reciprocity path..
Official links
Related guides
Frequently asked questions
Does Illinois accept a Washington contractor license?
Illinois does not offer contractor reciprocity with any state. Expect a full application to the Illinois Department of Public Health — Plumbing Program (general contractors are licensed municipally), including Illinois's exams.
What still applies even if reciprocity covers my trade?
Illinois's business and law exam, financial statement, bond, and registration — reciprocity waives the trade exam only, not these.
What does the Washington-to-Illinois move cost and how long does it take?
No reciprocity/endorsement fee exists because there is no reciprocity path; standard plumber licensing fees apply and were not captured.; processing Not applicable — no reciprocity path..
Would the NASCLA exam help for this move?
If you do commercial general-building work, possibly — about 15 states accept the NASCLA Accredited Commercial General Building exam toward licensure. Check whether Illinois is one on the Illinois Department of Public Health — Plumbing Program (general contractors are licensed municipally) site.
Sources
Primary sources only — official boards and compact commissions. Data last verified 2026-08-07.
- Illinois Department of Public Health — Plumbing (licensing, forms; reciprocity form is Chicago-only) ↗ (accessed 2026-07-21)
- Illinois IDFPR — Roofing Contractors (no reciprocity provision) ↗ (accessed 2026-07-21)
- WA L&I — Application for a Reciprocal 01 General Journey Level Electrician Certificate, form F500-148-000 rev. 07-2026 (Oregon only; $114.60; master cannot be reciprocated) ↗ (accessed 2026-08-07)
- WA L&I — Plumber Certification: Get or Renew Your Certification (reciprocates with Idaho; certification $242.70, exam $202.10) ↗ (accessed 2026-08-07)
- WA L&I — Register as a Contractor (RCW 18.27 registration, $150.20, $30,000/$15,000 bonds) ↗ (accessed 2026-08-07)
Reviewed by Billy Reiner, Editor · verified against primary sources 2026-08-07
How we verify · All sources · spot an error? [email protected]