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Permitting Authorities / Illinois / City of Lockport Building Department

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

Adopted code

City of Lockport Building Department

Yes, a permit is required to replace a roof in Lockport, IL, issued by City of Lockport Building Department. A RE-ROOF IS AN OVER-THE-COUNTER PERMIT WITH A FLAT FEE. The City says "An Over the Counter Permit includes HVAC, Water Heaters, Roofs, Siding, and Windows," and that these permits "can be quickly reviewed and approved and do not require extensive submittal information related to building or site plans and plats of survey." The City's Permit Fees page lists "Re-roof - House / Garage $75," "Re-roof - Porch, garage, or shed $40" and "Re-roof - Commercial $100," says fees "are to be paid once the permit is approved," and adds that "the City of Lockport charges a 2.95% fee for all credit / debit card transactions." The Building page says "All permit applications must be submitted either in person or by email," and that the online permitting system "is currently unavailable while undergoing maintenance." A miscellaneous permit, once issued, "is valid for 6 months." A homeowner may do the work on a single-family home "as long as you are the owner and primary occupant.".

Roof code checklist: Lockport, IL

ItemAnswerCode citeSourceVerified
Permit to replace a roofYescityoflockport.net2026-10-17
Repair permit thresholdPublishedcityoflockport.net2026-10-17
Layer limit / roof-overNot published
Deck & sheathingNot published
Drip edgeYescityoflockport.net2026-10-17
Ice & water shieldYescityoflockport.net2026-10-17
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNot published
Wind design criteriaPublishedcityoflockport.net2026-10-17
Adopted codePublishedSec. 152.01cityoflockport.net2026-10-17
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 Lockport, Illinois
Jurisdiction type
city
Address
222 E. 9th Street, 2nd Floor, Lockport, IL 60441
Contact
  • url: https://www.cityoflockport.net/133/Building
  • phone: 815-838-0549
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, BOND AND INSURANCE ON TOP OF THE STATE LICENSE. The City's Contractor Registration page quotes Section 115.05 of the Municipal Code: "No person shall be a contractor within the city without first having obtained a certificate of registration therefor as herein provided," and anyone doing work "for which a building permit is required, is presumed to be a contractor and must be registered hereunder." Under Section 115.04 the applicant deposits a bond that "shall extend over the registration period and be in the sum of $20,000," and the page lists general liability insurance of "$500,000 each occurrence, $1,000,000 aggregate." "The annual registration fee shall be $100," and "All certificates of registration shall expire annually on the anniversary date of issuance." A homeowner working on a personal residence "shall not be considered a contractor for purposes of this chapter."
Permit process note
A RE-ROOF IS AN OVER-THE-COUNTER PERMIT WITH A FLAT FEE. The City says "An Over the Counter Permit includes HVAC, Water Heaters, Roofs, Siding, and Windows," and that these permits "can be quickly reviewed and approved and do not require extensive submittal information related to building or site plans and plats of survey." The City's Permit Fees page lists "Re-roof - House / Garage $75," "Re-roof - Porch, garage, or shed $40" and "Re-roof - Commercial $100," says fees "are to be paid once the permit is approved," and adds that "the City of Lockport charges a 2.95% fee for all credit / debit card transactions." The Building page says "All permit applications must be submitted either in person or by email," and that the online permitting system "is currently unavailable while undergoing maintenance." A miscellaneous permit, once issued, "is valid for 6 months." A homeowner may do the work on a single-family home "as long as you are the owner and primary occupant."
Adopted code
THE 2024 INTERNATIONAL RESIDENTIAL CODE, ADOPTED BY ORDINANCE NO. 25-019, IN FORCE FROM JANUARY 1, 2026. The City's Current Codes & Amendments page says "We currently follow," and lists "2024 International Residential Code for One & two Family Dwellings," "2024 International Existing Building Code" and "2024 International Property Maintenance Code." The City's code-change notice says "the Lockport City Council has adopted the 2024 ICC Building, Fire and Existing Building Codes" and that "This change will take effect on January 1, 2026." Ordinance No. 25-019, passed December 3, 2025 and hosted by the City as a scanned PDF, replaces Chapter 152 of the Lockport Code of Ordinances in its entirety; Section 152.01 adopts the International Residential Code for One- and Two-Family Dwellings, 2024 Edition, by reference. The residential amendments in Section 152.03 were read; the only roof-chapter amendment is to Section R903.2.1 (drip edge and gutters). That section's heading still reads as amendments to the 2015 International Residential Code, a carry-over from Ord. 20-001 of March 4, 2020. The rest of the ordinance was not read for hail or impact-resistance provisions.
Drip edge
Required — REQUIRED BY THE CITY'S OWN IRC AMENDMENT WHERE THERE IS NO GUTTER, AND GUTTERS ARE REQUIRED ON EVERY NEW ROOF. Ordinance No. 25-019, which the City hosts as a scanned PDF, amends IRC Section R903.2.1 (Locations) by adding two items: metal drip edge flashing is to be applied to all areas of a roof, eaves and gable ends, where there are no gutters or other approved flashing, and where gutters are installed an approved gutter flashing is to be installed per the manufacturer's instructions; and gutters are required on all new roof installations, with downspouts that do not discharge onto a driveway, sidewalk or other walking surface. This is read from the enacted ordinance text, paraphrased here because the City's PDF is an image scan. About drip edge
Ice & water shield
Required — REQUIRED, PER THE CITY'S OWN TABLE R301.2(1). The Table R301.2(1) climatic and geographic design criteria that Ordinance No. 25-019 inserts into the City's IRC amendments answer Yes to Ice Barrier Underlayment Required. The ordinance's roof-chapter amendments do not otherwise touch the ice barrier, so the IRC's own ice-barrier section applies as adopted. Read from the enacted ordinance text, a scanned PDF the City hosts. About ice & water barrier
Repair permit threshold
PATCHING A ROOF IS PERMIT-FREE; A RE-ROOF IS NOT. The City's Building Department questions say "Permits are required for the following improvements," naming among them "alterations or replacement of water supply lines" and the rest of that list through "water heaters; re-roofs; and siding." The same page says "A permit is not required for ordinary, non-structural repairs, including but not limited to the following," and that list includes "Patching a roof." The City states no square-foot or dollar line between a patch and a re-roof. It also says "Properties located in the Historic Preservation District have special regulations which must be followed," and "The above list does not apply to any property located in this district."
Wind design criteria
115 MPH DESIGN WIND SPEED, IN A SPECIAL WIND REGION, PER THE CITY'S OWN TABLE R301.2(1). The table that Ordinance No. 25-019 inserts into the City's IRC amendments gives a ground snow load of 30 psf, a wind speed of 115 mph, topographic effects No, special wind region Yes, wind-borne debris zone No, seismic design category B, weathering Severe, frost line depth 42 inches, termite Moderate to Heavy, winter design temperature 0 degrees, ice barrier underlayment required Yes, an air freezing index of 2000 and a mean annual temperature of 50.6. Read from the enacted ordinance text, a scanned PDF the City hosts.
Sales & use tax
Illinois taxes the roofer, not the job, and the operative rate is not keyed to the Lockport 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 Lockport, Illinois, in Will County, are handled by the City's Building Department, part of Community & Economic Development, on the second floor of City Hall at 222 E. 9th Street. The Illinois Capital Development Board says "The State has not adopted a building code for repairs to existing single family residences," so Lockport's roofing rules are its own: the City's Current Codes & Amendments page lists the 2024 International Residential Code for one- and two-family dwellings. The City's permit questions list re-roofs among the work that needs a permit; 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 Lockport, 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 drip edge and ice & water shield are what adjusters ask you to document.

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Sources

Roofing questions: Lockport, IL

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

Yes, a permit is required to replace a roof in Lockport, IL. PATCHING A ROOF IS PERMIT-FREE; A RE-ROOF IS NOT. The City's Building Department questions say "Permits are required for the following improvements," naming among them "alterations or replacement of water supply lines" and the rest of that list through "water heaters; re-roofs; and siding." The same page says "A permit is not required for ordinary, non-structural repairs, including but not limited to the following," and that list includes "Patching a roof." The City states no square-foot or dollar line between a patch and a re-roof. It also says "Properties located in the Historic Preservation District have special regulations which must be followed," and "The above list does not apply to any property located in this district."

Is ice & water shield required in Lockport, IL?

Yes. REQUIRED, PER THE CITY'S OWN TABLE R301.2(1). The Table R301.2(1) climatic and geographic design criteria that Ordinance No. 25-019 inserts into the City's IRC amendments answer Yes to Ice Barrier Underlayment Required. The ordinance's roof-chapter amendments do not otherwise touch the ice barrier, so the IRC's own ice-barrier section applies as adopted. Read from the enacted ordinance text, a scanned PDF the City hosts.

Is drip edge required in Lockport, IL?

Yes. REQUIRED BY THE CITY'S OWN IRC AMENDMENT WHERE THERE IS NO GUTTER, AND GUTTERS ARE REQUIRED ON EVERY NEW ROOF. Ordinance No. 25-019, which the City hosts as a scanned PDF, amends IRC Section R903.2.1 (Locations) by adding two items: metal drip edge flashing is to be applied to all areas of a roof, eaves and gable ends, where there are no gutters or other approved flashing, and where gutters are installed an approved gutter flashing is to be installed per the manufacturer's instructions; and gutters are required on all new roof installations, with downspouts that do not discharge onto a driveway, sidewalk or other walking surface. This is read from the enacted ordinance text, paraphrased here because the City's PDF is an image scan.

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

Yes.

What building code does Lockport, IL use?

THE 2024 INTERNATIONAL RESIDENTIAL CODE, ADOPTED BY ORDINANCE NO. 25-019, IN FORCE FROM JANUARY 1, 2026. The City's Current Codes & Amendments page says "We currently follow," and lists "2024 International Residential Code for One & two Family Dwellings," "2024 International Existing Building Code" and "2024 International Property Maintenance Code." The City's code-change notice says "the Lockport City Council has adopted the 2024 ICC Building, Fire and Existing Building Codes" and that "This change will take effect on January 1, 2026." Ordinance No. 25-019, passed December 3, 2025 and hosted by the City as a scanned PDF, replaces Chapter 152 of the Lockport Code of Ordinances in its entirety; Section 152.01 adopts the International Residential Code for One- and Two-Family Dwellings, 2024 Edition, by reference. The residential amendments in Section 152.03 were read; the only roof-chapter amendment is to Section R903.2.1 (drip edge and gutters). That section's heading still reads as amendments to the 2015 International Residential Code, a carry-over from Ord. 20-001 of March 4, 2020. The rest of the ordinance was not read for hail or impact-resistance provisions.