The Roofing Book

Permitting Authorities / Illinois / City of West Chicago Community Development Department, Building Division

Do you need a permit to replace a roof in West Chicago, IL?

Adopted code

City of West Chicago Community Development Department, Building Division

Yes, a permit is required to replace a roof in West Chicago, IL, issued by City of West Chicago Community Development Department, Building Division. THE CITY PUBLISHES A ROOF PERMIT GUIDE AND INSPECTS THE ICE AND WATER SHIELD. The City's Building Permit Guide for roofs gives a "Checklist for Permit Application Submittal" of a "Completed Residential Building Permit Application" and a "Copy of State Roofing License and completed City of West Chicago Contractor Registration (unless Homeowner is performing the roofing project)." The Building Permits page says "roofs require an ice & water shield inspection," that the builder must request each inspection, and "Only after obtaining your permit should you or your contractor begin work." The roof guide does not state a fee.

Roof code checklist: West Chicago, IL

ItemAnswerCode citeSourceVerified
Permit to replace a roofYesRoofing-Guide_FINAL.pdf2026-10-17
Repair permit thresholdNot published
Layer limit / roof-overNot published
Deck & sheathingNot published
Drip edgeNot published
Ice & water shieldYesRoofing-Guide_FINAL.pdf2026-10-17
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNot published
Wind design criteriaNot published
Adopted codePublishedwestchicago.org2026-10-17
Contractor license / registrationYesilga.gov2026-09-18
Sales & use taxPublishedilga.gov2026-09-18

Each row comes from the sourced record on this page; full wording is in the table below. "Not published" means no official source for that item was found when the record was last verified.

Jurisdiction
City of West Chicago, Illinois
Jurisdiction type
city
Address
475 Main Street, West Chicago, IL 60185
Contact
  • url: https://westchicago.org/community-development/
  • phone: 630-818-3333
Roofing permit required
Required
Contractor registration required
Required
Registration details
  • state_level: Illinois licenses roofing contractors statewide with no dollar threshold. 225 ILCS 335/9(2): "No work involving the construction, reconstruction, alteration, maintenance, or repair of any kind of roofing or waterproofing may be done except by a roofing contractor or a qualifying party licensed or credentialed under this Act." Under 225 ILCS 335/5(a-3), "A municipality or a county that requires a building permit may not issue a building permit to a roofing contractor unless that contractor has provided sufficient proof of current licensure as a roofing contractor by the State," and a holder of a limited license is restricted to permits for work on residential properties of 8 units or less. The Illinois Department of Financial and Professional Regulation lists "Roofing Contractor, Licensed" among the professions it licenses.
  • city_level: A CITY REGISTRATION ON TOP OF THE STATE LICENSE. The City's Building Permits page says "all contractors or subcontractors operating within the City of West Chicago must be registered with the City" and that "all essential insurance, surety bonds, state or local licenses, and fee payments are required prior to a permit being issued." The City's Roof permit guide asks for a "Copy of State Roofing License and completed City of West Chicago Contractor Registration." The fee and bond amounts are not stated on the pages this record read.
Permit process note
THE CITY PUBLISHES A ROOF PERMIT GUIDE AND INSPECTS THE ICE AND WATER SHIELD. The City's Building Permit Guide for roofs gives a "Checklist for Permit Application Submittal" of a "Completed Residential Building Permit Application" and a "Copy of State Roofing License and completed City of West Chicago Contractor Registration (unless Homeowner is performing the roofing project)." The Building Permits page says "roofs require an ice & water shield inspection," that the builder must request each inspection, and "Only after obtaining your permit should you or your contractor begin work." The roof guide does not state a fee.
Adopted code
THE 2021 INTERNATIONAL RESIDENTIAL CODE, PER THE CITY'S OWN BUILDING PERMITS PAGE. The page says "As of January 1, 2024, the following building codes are in full force and effect" and lists "Residential Code Requirements: 2021 International Residential Code." The City's roof permit guide adds "The International Residential Code for One and Two Dwellings (IRC), adopted by the City of West Chicago requires additional underlayment for asphalt shingle applications." The City's Code of Ordinances is on an outside code host, which this record did not read, so it does not state the adopting ordinance or whether the City has amended the IRC's roof provisions.
Ice & water shield
Required — REQUIRED AND INSPECTED, IN THE CITY'S OWN WRITTEN WORDS. The City's roof permit guide says "Ice protection (ice and water shield) shall be used in lieu of normal underlayment and extend from the eave's edge to a point at least 24 inches inside the exterior line of the building" and "The City of West Chicago requires you have the ice and water shield inspected prior to shingling." This rests on the City's own written guide; the enacted amendment text was not read. About ice & water barrier
Sales & use tax
Illinois taxes the roofer, not the job, and the operative rate is not keyed to the West Chicago job address. Under 86 Ill. Adm. Code 130.1940(c), a construction contractor "does not incur Retailers' Occupation Tax liability as to receipts from labor furnished and tangible personal property (materials and fixtures) incorporated into a structure," but "incurs Use Tax on the cost price of the tangible personal property that is incorporated into real estate," with "roofing materials" named in the rule's own list of examples. Repair and replacement are taxed identically: 130.1940(a)(3) defines "construct" to include "repair, renovate or remodel." The Illinois Department of Revenue states the Use Tax rate as "6.25% of the purchase price or fair market value, whichever is greater." Where the contractor buys for resale, the local tax follows "the place of business at or from which the contractor or builder handles the transaction" (130.2075(b)(3)), so the combined rate on materials is the supply house's or the contractor's, which this record does not pin down. The authoritative lookup is the Illinois Department of Revenue's MyTax Illinois Tax Rate Finder.

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Building permits in the City of West Chicago, Illinois, in DuPage County, are handled by the Building Division of the Community Development Department at City Hall, 475 Main Street. The Illinois Capital Development Board says "The State has not adopted a building code for repairs to existing single family residences," so West Chicago's roofing rules are its own: the City's Building Permits page lists the 2021 International Residential Code as in force since January 1, 2024. The City publishes a Building Permit Guide for roofs; this listing covers the office's contact details, the City's own statements on code and permits, and the rules state law sets for every Illinois roofer.

Working an insurance claim in West Chicago, IL? Everything on this page (drip edge, ice & water shield, inspections, Class 4 rules) formatted as a claim-ready evidence pack: verbatim ordinance quotes, code section cites, verification dates, and official source links, ready to attach to a supplement. See a real sample pack (PDF, 4 pages, free).

Code items like ice & water shield are what adjusters ask you to document.

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Sources

Roofing questions: West Chicago, IL

Do you need a permit to replace a roof in West Chicago, IL?

Yes, a permit is required to replace a roof in West Chicago, IL.

Is ice & water shield required in West Chicago, IL?

Yes. REQUIRED AND INSPECTED, IN THE CITY'S OWN WRITTEN WORDS. The City's roof permit guide says "Ice protection (ice and water shield) shall be used in lieu of normal underlayment and extend from the eave's edge to a point at least 24 inches inside the exterior line of the building" and "The City of West Chicago requires you have the ice and water shield inspected prior to shingling." This rests on the City's own written guide; the enacted amendment text was not read.

Do roofing contractors need a license or registration in West Chicago, IL?

Yes.

What building code does West Chicago, IL use?

THE 2021 INTERNATIONAL RESIDENTIAL CODE, PER THE CITY'S OWN BUILDING PERMITS PAGE. The page says "As of January 1, 2024, the following building codes are in full force and effect" and lists "Residential Code Requirements: 2021 International Residential Code." The City's roof permit guide adds "The International Residential Code for One and Two Dwellings (IRC), adopted by the City of West Chicago requires additional underlayment for asphalt shingle applications." The City's Code of Ordinances is on an outside code host, which this record did not read, so it does not state the adopting ordinance or whether the City has amended the IRC's roof provisions.