The short answer
- Ask a company for its license number and confirm it with your state pesticide regulatory office.[3][2]
- Check that the license covers the job, such as general household pests or termites.[2][4]
- Be wary of claims that a company or product is endorsed by a state or federal agency.[3]
Questions to ask before you hire
- Can you give me an estimate in writing, and is there a guarantee?[2][4]
- Do you use integrated pest management, and will you discuss low-toxicity options?[2][4]
All 50 states
Each guide cites its sources; metro guides are linked from their state.
Updated 2026-10-06. Built from sourced records. Spot an error? Tell us.