What Can a Handyman Do Without a License in Naperville, Illinois (DuPage County primary / Will County secondary)?

By Ray Duke, Founder of Bulletproof Handyman · Last reviewed July 2026

Illinois has no statewide general contractor license, but handymen in Naperville must comply with city building permits, trade-specific state licenses (plumbing and roofing), and local contractor registration requirements. There is no dollar-amount handyman exemption in Illinois; instead, work is regulated by trade type and permit requirements. Most cosmetic and maintenance work can be performed without a license, but any electrical, plumbing, HVAC, roofing, or structural work requires appropriate state or local licensing and permits.

✅ What You Can Do Without a License

• Painting (interior and exterior, excluding lead-based paint on pre-1978 homes without EPA certification)
• Wallpapering and drywall finishing (cosmetic repairs only, not structural)
• Carpeting and flooring installation (non-structural)
• Caulking and weatherstripping
• Minor drywall repairs and patching (not affecting structural integrity)
• Cabinet and fixture installation (not requiring electrical or plumbing connections)
• Pressure washing and exterior cleaning
• Landscaping and yard maintenance (not including structural hardscaping)
• Door and window replacement (if not affecting structural integrity or requiring permits)
• Fixture replacement (light fixtures, faucets, towel bars — not involving new electrical or plumbing runs)

Common Jobs Handymen Take in Naperville

Based on the IL threshold, handymen in Naperville commonly take on:

• Painting (interior and exterior, excluding lead-based paint on pre-1978 homes without EPA certification)
• Wallpapering and drywall finishing (cosmetic repairs only, not structural)
• Carpeting and flooring installation (non-structural)
• Caulking and weatherstripping
• Minor drywall repairs and patching (not affecting structural integrity)
• Cabinet and fixture installation (not requiring electrical or plumbing connections)
• Pressure washing and exterior cleaning
• Door and window replacement (if not affecting structural integrity or requiring permits)

⚠️ What Requires a License

• Any plumbing work (requires Illinois state plumbing contractor license)
• Any roofing work (requires Illinois state roofing contractor license — Limited or Unlimited)
• Electrical work beyond simple fixture replacement (requires city registration in Naperville and may require state licensing)
• HVAC system installation or replacement (requires EPA Section 608 certification for refrigerant work and city building permit)
• Structural repairs or modifications (load-bearing walls, foundations, framing)
• Gas line installation or repair (requires state licensing and permits)
• Water heater installation (requires building permit and may require licensed plumber)
• Furnace or air conditioning system replacement (requires building permit and EPA Section 608 certification)
• Electrical panel work or any work affecting the main electrical service
• Any work requiring a building permit from the City of Naperville

Business License — Naperville

Not required at the city level.

Setting Up Your Business in IL

To get paid professionally and protect yourself, register your business. LLC filing fee in IL: $150 (one-time). You'll also need a free EIN from the IRS and a business checking account.

Your Next Steps to Operating Legally in Naperville

1. Step 1: Determine the scope of work you plan to offer. Identify whether any work falls into regulated trades (plumbing, roofing, electrical, HVAC).
2. Step 2: Register your business entity with the Illinois Secretary of State by filing Articles of Organization for an LLC ($150 filing fee). This establishes your legal business structure.
3. Step 3: Register your business with the Illinois Department of Revenue for tax purposes (free). Obtain an Illinois Tax ID (FEIN) if you plan to hire employees or operate as a partnership/corporation.
4. Step 4: If operating under a trade name, file an assumed name (DBA) certificate with the DuPage County Clerk ($40-$50 for 2 years).
5. Step 5: Obtain general liability insurance ($1 million per occurrence recommended). Many property owners and municipalities require proof of insurance.
6. Step 6: If performing electrical work, register as an Electrical Contractor with the City of Naperville Community Services Department. Contact (630) 420-6100 for current registration fee and requirements.
7. Step 7: If performing plumbing or roofing work, apply for the appropriate state license through IDFPR (roofing) or IDPH (plumbing). Budget for application fees, exam fees, and bonding.
8. Step 8: Before beginning any project, contact the City of Naperville Building Division at (630) 420-6100 to determine whether a building permit is required. Obtain all required permits before starting work.
9. Step 9: Verify compliance with current building codes (2024 ICC, 2023 NEC, Illinois Plumbing Code as of April 1, 2026).
10. Step 10: Maintain records of all licenses, permits, insurance, and certifications. Keep copies on-site during work and provide copies to property owners upon request.

Licensing rules and fees change over time, so this information may be out of date. Verify all requirements with your local licensing authority before making business decisions.