New Contractor Registration

All contractors performing work in unincorporated Cook County are required to register with the Department of Building & Zoning annually.

  1. Only the Owner of the company, Corporate Officer (Vice-President, Secretary, Treasurer) or homeowner may apply for registration, in person.

  2. Submit a copy of your Certificate of Insurance (General Liability), in the amount of $1,000,000, naming Cook county Building & Zoning, including the department address, as the Certificate Holder.

  3. In the case of a firm or corporation or LLC, the names of each officer comprising the firm or corporation shall be so listed. Submit a copy of Articles of Incorporation or current Annual Domestic Report listing the officers. In addition, a copy of your Federal Identification Number (FEIN) is required.

  4. Bonds are required for Demolition, Demolition Leveling, Signs (Billboards), Private Sewage Disposal Sytems, Restoration Performance (Construction Trailer), Restoration Performance (Excavation, Grading and Foundation) and Wireless Telecommunication Contractors. For your convenience, bond forms can be downloaded and completed inadvance, prior to registration. Bond forms along with the current Surety listings can be found at: BONDS. Each bond must be accompanied with a $2.00 recording fee, made payable to the Cook County Clerk (Money Order Only).

  5. An Affidavit of Child Support Obligations form must be completed by person registering.

  6. A registration fee of $105.00 per trade shall be made payable by check or money order only, to Cook County Collector.

Contractor Registration Renewal 2018

The Department of Building and Zoning has installed a new system for all our processes. 

  • Currently registered contractors will receive a renewal letter and payment invoice in the mail after December 1, 2017. 
  • If you are a registered contractor with Cook County Building and Zoning, please be advised that your Contractor Registration Renewal is due effective December 1, 2017.
  • The submittal of the non-refundable  Fifty Two Dollars and Fifty Cents ($52.50) by check or money order only, fee per trade registration will renew your registration from 12/01/2017 through 11/30/2018.
  • Bonds

Renewal Tips

The following TIPS will help to expedite the registration and the return of your contractor registration card:

BY MAIL

  1. If you are paying online, please submit the online payment receipt with all the renewal documents by mail.
  2. If multiple registrations, please submit only one child support compliance form and only one check. If paying online submit online receipts for for all trades.
  3. Write your registration number CLEARLY AND BOLDLY on all documents you are returning.
  4. The Certificate of Insurance must show “Cook County Building and Zoning” as the Certificate Holder and must show our address: 69 West Washington, Suite 2830, Chicago, IL 60602.

BY EMAIL:

  1. You can email all the renewal documents along with the payment receipt to the respective email provided below.
  2. For Electrical renewal send them to electrical.bnz@cookcountyil.gov ; for Plumbing to plumbing.bnz@cookcountyil.gov ; for all else send to CR.bnz@cookcountyil.gov.
  3. Please write the Registration Number and the Invoice Number in the subject line of the email.

NOTE:   If you failed to register in 2016, you will be assessed the maximum fee of $105 per trade for renewal.

Licensed Contractors Search

The Department of Building and Zoning allows building permit applicants to view contractors who are registered to do work in unincorporated Cook County (per the Cook County Building Code). See the related link on the right to access the list of currently registered contractors.

Contractor Registration Renewal Requirements:

All contractors are required to renew their registrations with Cook County each year. Please submit the following for each trade:

General and Other Contractor Renewal

  • $52.50, per trade registration, check or money order only, payable to Cook County Collector
  • Certificate of Insurance for current year (including Cook County Building & Zoning as the Certificate Holder)
  • Child Support Compliance Data Form (must be notarized. for more information, see section below)
  • Bonds

Call 312.603.0512 for questions and further information please contact 

Plumbing Renewal Requirements: 

  • $52.50, per trade registration – check or money order only,  payable to Cook County Collector
  • Certificate of Insurance for current year  (including Cook County Building & Zoning as the Certificate Holder)
  • Copy 055 – State Plumbing Contractor’s Registration
  • Copy of current Plumbing,  Fire Sprinkler, Septic, Irrigation, Well and/or Sewer Licence
  • Domestic Corporation Report (from Illinois Secretary of State – for current year)
  • Child Support Compliance Data Form (must be notarized. see section below for more information)
  • Copy of CCCDI License (if applicable)

Call 312.603.0514 for questions and further information please contact 

Electrical Renewal Requirements:

  • $52.50, per trade registration – check or money order only,  payable to Cook County Collector
  • Certificate of Insurance for current year (including Cook County Building & Zoning as the Certificate Holder)
  • Current License with company name for current year
  • Child Support Compliance Data Form (must be notarized. see section below for more information)
  • Electrical Sign Contractor (ONLY) – Continuation Bond for Electrical Sign Contractor

Call 312.603.0515 for questions and further information please contact 

Contractor Registrants Note

Regarding Child Support Compliance:In accordance with the Cook County Child Support Ordinance, a Child Support Affidavit is to be submitted by every applicant/substantial owner for a County privilege to show they are in full compliance with any child support order before they are entitled to receive or renew such privilege.

Contractors registering or renewing to perform work in Cook County must submit this form along with their registration information. Please download the Cook County Affidavit of Child Support Obligation form from the side bar .