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Do I Need a Permit for Electrical Work in Joliet, IL?

Electrical permits in Joliet carry two distinctive features compared to most Illinois cities: the accepted electrical license list (not just any state license — Joliet accepts specific municipal licenses and the CLEC Certificate), and the Letter of Intent requirement that must accompany every trade permit application. Get both right before work begins.

Research by DoINeedAPermit.org Updated April 2026 Sources: Joliet Building Code Information, Joliet Building Division
It Depends on Scope
Like-for-like replacements generally no permit. New circuits, panel upgrades, and rewiring require electrical permits. Contractor must pull permit. Joliet accepts specific electrical licenses only. Letter of Intent required.
Replacing an outlet or switch on existing wiring at the same location: generally no permit. Adding new circuits, upgrading the panel, running new wiring, or installing an EV charger circuit: electrical permit required. Per Section 8-36, if a contractor performs the work, the contractor must pull the permit. Joliet accepts electrical contractor licenses from: Chicago, Deerfield, Downers Grove, Elgin, Orland Park, Ottawa, Schaumburg, Libertyville, Woodstock, Peoria, Springfield, or CLEC Certificate. A Letter of Intent from the electrician must accompany the permit application. Email to permitapplication@joliet.gov or City Hall drop box. ComEd provides electricity to most Joliet properties. Building Division: (815) 724-4070.
Every project and property is different — check yours:

Joliet IL electrical permit rules — the basics

Electrical permits in Joliet are applied for through the email/drop-box system — the same as all other Joliet permits. The electrician (not the homeowner for contracted work, per Section 8-36) emails the electrical permit application to permitapplication@joliet.gov or drops it at the City Hall drop box. The application must include a Letter of Intent from the electrician stating their intent to perform the described scope. All contractors must have current registration with the City of Joliet on file before permits are issued; call (815) 724-4070 to verify any electrician's Joliet registration before signing a contract.

Joliet's accepted electrical license list is more specific than most Illinois cities. Rather than accepting any Illinois-licensed electrician, Joliet specifies that the electrical contractor license must be from one of these jurisdictions: Chicago, Deerfield, Downers Grove, Elgin, Orland Park, Ottawa, Schaumburg, Libertyville, Woodstock, Peoria, or Springfield — or the electrician must hold a CLEC (Continuing Legal Education for Contractors) Enterprises Certificate. An electrician with only a state-issued license or licenses from other municipalities not on this list may not be eligible to pull electrical permits in Joliet. Before signing any electrical contract, call the Building Division at (815) 724-4070 to confirm the electrician's license eligibility for Joliet.

ComEd (Commonwealth Edison) provides electricity to most Joliet residential properties. For any electrical project requiring service entrance work — service upgrades, new service connections, or changes at the meter — coordinate with ComEd (comed.com, 1-800-334-7661) before scheduling the permit application. ComEd's residential service upgrade scheduling typically takes 2–6 weeks for residential projects; factor this into the overall project timeline. The electrical permit from Joliet and the ComEd service work run in parallel — both must complete before the new service is energized.

Current NEC provisions as adopted by Illinois apply to all permitted electrical work in Joliet. GFCI protection is required for bathrooms, kitchen countertop outlets within 6 feet of sinks, garages, outdoor locations, crawlspaces, and unfinished basements. AFCI protection is required for bedroom and living area circuits in new or renovated wiring. Tamper-resistant receptacles for all newly installed outlets in dwelling units. These requirements are verified at the rough-in inspection before walls close and at the final inspection. Inspections are scheduled at (815) 724-4070 between 8:00 a.m. and 3:30 p.m. Monday through Friday, with at least 24-hour advance notice.

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Three Joliet electrical work scenarios

Scenario A
100A to 200A service upgrade for EV charger installation in a 1980s Joliet home
A homeowner wants to add two Level 2 EV charger circuits to a 1983 home with 100A electrical service. The 100A service panel cannot safely accommodate two 50A EV charger circuits plus the existing household loads — a service upgrade to 200A is required. The electrician (holding a Chicago or other Joliet-accepted electrical license, with current Joliet registration) applies for the electrical permit by emailing the application and Letter of Intent to permitapplication@joliet.gov. After the invoice is received and payment made, the electrician emails permitapplication@joliet.gov with the reference number to confirm payment. ComEd coordinates the service entrance upgrade — the electrician contacts ComEd at (1-800-334-7661) to schedule the service drop upgrade and meter socket replacement. ComEd's scheduling: typically 2–6 weeks. The permit and ComEd upgrade run in parallel; the permit inspection occurs after all electrical work is complete. GFCI and AFCI code requirements are verified at the final inspection. Total project cost for 200A service upgrade with two EV charger circuits: $4,000–$9,000 installed. Permit fee: approximately $100–$250.
Electrical permit (electrician pulls, Joliet-accepted license); Letter of Intent required; ComEd coordination for service entrance; manual payment notification email required; project cost $4,000–$9,000
Scenario B
Kitchen circuit additions during a Joliet kitchen remodel — Joliet license eligibility is the critical check
A homeowner remodeling a kitchen wants to add the NEC-required two dedicated 20-amp small-appliance circuits for countertop outlets, upgrade the refrigerator to a dedicated circuit, and install GFCI on all countertop outlets within 6 feet of the sink. The homeowner obtains quotes from three electricians — one from Joliet, one from Bolingbrook (DuPage County area), and one from Chicago. Before signing any contract, the homeowner calls the Joliet Building Division at (815) 724-4070 to verify which electricians hold Joliet-accepted licenses. The Chicago electrician holds a Chicago electrical contractor license — explicitly listed as accepted. The Bolingbrook electrician holds a license from a municipality not on Joliet's list — not eligible for Joliet permits. The Joliet electrician has a state license but the homeowner confirms their Joliet registration is current. The Chicago electrician is selected. The electrician emails the electrical permit application and Letter of Intent to permitapplication@joliet.gov. Rough-in inspection before cabinets close the new wiring; final inspection after completion. Total cost for kitchen circuit additions in Joliet: $600–$2,000 for new circuits and GFCI updates.
Electrical permit (Joliet-accepted license electrician pulls it); Letter of Intent; Chicago license explicitly accepted; Bolingbrook license may not qualify; project cost $600–$2,000
Scenario C
Whole-house rewiring in an older Joliet home — knob-and-tube replacement
A pre-1950 Joliet home in a historic neighborhood near the Rock River has original knob-and-tube (K&T) wiring throughout — no ground conductor, no GFCI protection, inadequate capacity for modern loads. Complete rewiring is a multi-inspection project. The electrician (Joliet-accepted license, current Joliet registration) emails the electrical permit application and Letter of Intent to permitapplication@joliet.gov. Because the project involves opening walls and ceilings throughout the home, it is coordinated with any other concurrent renovation work (lead paint RRP rules apply for pre-1978 homes). The permit covers the complete rewiring from panel to all outlets, switches, and fixtures. Multiple rough-in inspections as work progresses through different home areas; final inspection after all work is complete. ComEd coordination needed if the service entrance is being upgraded as part of the rewiring (many pre-1950 homes have 60A or 100A service). The panel is replaced as part of the rewiring to accommodate modern circuit breakers with AFCI/GFCI protection. Total project cost for complete knob-and-tube rewiring in Joliet: $12,000–$32,000 depending on house size and extent of wall opening required.
Electrical permit (Joliet-accepted license); Letter of Intent; multiple rough-in inspections; EPA RRP for pre-1978 if walls opened; ComEd for service upgrade if needed; project cost $12,000–$32,000
Electrical scopePermit requirement in Joliet, IL
Like-for-like outlet/switch replacementGenerally no permit for same-location replacements using existing wiring. Adding a new outlet where none existed: permit required.
New circuits or panel upgradeElectrical permit required. Joliet-accepted license electrician pulls permit (Section 8-36). Letter of Intent required. Email to permitapplication@joliet.gov.
Joliet-accepted electrical license listChicago, Deerfield, Downers Grove, Elgin, Orland Park, Ottawa, Schaumburg, Libertyville, Woodstock, Peoria, Springfield, or CLEC Certificate. Call (815) 724-4070 to verify any electrician's eligibility before signing a contract.
ComEd service entrance coordinationComEd (comed.com, 1-800-334-7661) provides electricity to Joliet. Contact for service entrance upgrades. 2–6 week typical scheduling. Runs in parallel with city permit process.
Letter of Intent requiredMust accompany every electrical permit application. Formal statement from electrician confirming they will perform the described scope. Missing Letter of Intent returns application without processing.
Joliet's accepted electrical license list is specific — verify your electrician qualifies before signing any contract.
Joliet-accepted electrical license verification. Letter of Intent requirements. ComEd service upgrade coordination.
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Common questions about Joliet IL electrical permits

Which electrical contractor licenses does Joliet accept?

Joliet accepts electrical contractor licenses from: Chicago, Deerfield, Downers Grove, Elgin, Orland Park, Ottawa, Schaumburg, Libertyville, Woodstock, Peoria, and Springfield — and CLEC Enterprises Certificate holders. An electrician with only a state-level license or a license from a municipality not on this list may not be eligible to pull electrical permits in Joliet. Verify eligibility by calling the Building Division at (815) 724-4070 before signing any electrical contract.

What is the Letter of Intent required for Joliet electrical permits?

The Letter of Intent is a formal document from the electrician stating their intent to perform the specific scope of work described in the permit application. It must accompany every Joliet electrical permit application submitted to permitapplication@joliet.gov or the City Hall drop box. This requirement confirms that the licensed electrician on record is actually performing the work, not just lending their license to an application. A permit application submitted without a Letter of Intent will be returned without processing.

How long does a Joliet electrical permit take to process?

Estimated processing time for electrical permits in Joliet: approximately 10 business days. After receiving the invoice, pay online and manually email permitapplication@joliet.gov with the application reference number — the payment system does not automatically notify the Building Department. Inspections are scheduled at (815) 724-4070 with at least 24-hour advance notice, Monday through Friday 8:00 a.m.–3:30 p.m. For projects requiring ComEd service entrance work, the ComEd scheduling timeline (2–6 weeks) is typically the longest element — factor this into the overall project timeline.

Joliet Building & Inspectional Services Division City Hall, 150 W. Jefferson St., Joliet, IL 60432
Building: (815) 724-4070 · Inspections: M–F 8 a.m.–3:30 p.m. (24-hr advance notice)
Email permits: permitapplication@joliet.gov
No in-person over-the-counter permit issuance

ComEd (electric utility): comed.com · 1-800-334-7661

Electrical work permits in nearby cities

General guidance based on City of Joliet sources as of April 2026. For a personalized report, use our permit research tool.

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