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How to Start a Pest Control Business in Illinois

Pest control is built on recurring service: quarterly or monthly treatments for homes, restaurants and commercial buildings. Startup costs are modest, but pesticide use is closely regulated. Your state agriculture or pesticide agency decides which certifications and business licenses you need.

Reviewed November 5, 2026 · Sources linked inline

Illinois requirements for this business

  • To get an Illinois Department of Public Health structural pest control license, a business must first employ at least one certified technician. [source]
  • Certified technicians must pass the General Standards Examination, plus one or more subcategory exams to use restricted-use pesticides, with a score of 70 percent on each. [source]
  • The business must have its insurance company submit IDPH's Certificate of Insurance Form to show required coverage. [source]
  • Business licenses renew annually and technician certifications every three years, both by December 1 to avoid late fees or penalties. [source]

Statewide steps for every Illinois business — forming an LLC or registering a business name with the State of Illinois — are on our state licensing directory.

FirstBizGuide is not a government agency: any license or registration fees are paid directly to the agency named in each source. These are the Illinois facts we have verified so far, not a complete list. City and county rules vary — check with your local government before opening.

Startup costs

We haven't found a reliable published cost range for this business, so we don't show one. Costs vary widely by market, equipment and whether you buy new or used. Plug your own quotes into the worksheet:

Open the pest control cost worksheet →

SBA 7(a) loans in this industry

Exterminating and Pest Control Services (NAICS 561710): 384 loans approved in FY2024–FY2026. Median loan $150,000; middle half $55,000–$350,000.

Loan size is not startup cost — these loans also fund acquisitions, real estate and working capital. Full breakdown and caveats →

How much competition is there?

Census industry: Exterminating and Pest Control Services (NAICS 561710)

In Illinois: 395 employer establishments (2023) and 347 businesses without employees (2024). Nationwide: 16,535 employer establishments (2023) and 16,996 businesses without employees (2024).

See counts for your county → Counts aren't a measure of saturation — see the caveats on the tool page.

Equipment and supplies

  • Backpack and compressed-air sprayers
  • Hand and bulb dusters
  • Bait stations, traps and insect monitors
  • Flashlight, inspection mirror and moisture meter
  • Respirator, gloves, eye protection and other PPE the labels require
  • Spill kit and locking chemical storage in the vehicle
  • Routing and service-agreement software

Licenses and registration

  • If you form an LLC or corporation, register it with your state; if you use a business name other than your own, file a trade name (DBA) where your state requires it (in some states that's the county).
  • EPA requires any person who applies or supervises the use of restricted use pesticides (RUPs) to be certified; state, territorial and tribal authorities certify applicators, with EPA oversight, so contact your state's certifying agency. [source]
  • EPA notes that many states require all commercial applicators, not only those using RUPs, to be certified. [source]
  • Many states also license the pest control business itself and set categories for structural, termite, fumigation or lawn work; check your state agriculture or pesticide regulatory agency.
  • Follow every pesticide label exactly — labels set the rules for use, PPE and re-entry.
  • Commercial clients and general contractors often ask for a certificate of insurance, a W-9 and proof of license.
  • Get a free Employer Identification Number (EIN) from the IRS if you will hire employees or form an LLC or corporation. Beware of sites that charge for this. [source]
  • To find your state's business registration office, use the SBA's state-by-state registration lookup. [source]

Insurance to consider

  • General liability with a pest control or pesticide endorsement
  • Commercial auto for service vehicles
  • Workers' compensation once you hire
  • Errors and omissions, often requested for termite inspections
  • Surety bond if your state requires one for business licensing

Get quotes from several carriers or an independent agent; coverage needs depend on your contracts, state and staff.

Financing options

  • SBA 7(a) loans — the SBA's main guaranteed loan program, made through participating lenders. [source]
  • SBA Microloans — smaller loans delivered through nonprofit intermediary lenders. [source]
  • SBA Lender Match — a free tool that connects you with interested SBA lenders. [source]
  • Free counseling from your local SBDC or SCORE chapter can help you build the business plan lenders ask for. [source]

Estimate payments with the loan calculator, then check runway with the cash flow projection.

Ongoing operating expenses

  • Pesticides, baits and supplies
  • Fuel and vehicle costs
  • Insurance
  • Technician wages
  • Certification renewals and continuing education credits
  • Routing software
  • Marketing

Use the break-even calculator to see how many jobs or sales cover them.

Common mistakes

  • Applying pesticides before you have the certification and business license your state requires
  • Not following label directions
  • Selling one-time treatments instead of service plans
  • Poor record keeping for applications
  • Underpricing commercial accounts

Finding customers

  • Google Business Profile and local service listings
  • Quarterly service plans with auto-billing
  • Commercial accounts such as restaurants and property managers
  • Referrals from realtors and home inspectors
  • Seasonal offers for mosquitoes, termites and rodents

Startup checklist

Ticks are saved on this device and appear on My plan.

Compare with other businesses

Sources