An exterminator is a professional who specializes in eliminating pests, such as insects and rodents, from homes and buildings. Pest control is a broader term that refers to the management and elimination of pests in a variety of settings, including homes, commercial buildings, agricultural areas, and outdoor spaces. The services offered by pest control companies can include inspections, treatment options, and ongoing prevention measures, while an exterminator typically provides one-time extermination services.