Commercial flea control requires modified protocols addressing larger spaces, business continuity concerns, liability issues, regulatory compliance, and diverse stakeholder needs beyond residential approaches. Veterinary clinics face continuous reintroduction from client animals and require daily or weekly maintenance treatments rather than one-time services, using rotation protocols to prevent resistance development in constantly exposed populations. Pet grooming businesses implement strict sanitation protocols treating all surfaces between clients, using fast-acting contact sprays on grooming tables and IGRs on floors, with treatment costs of $200-400 monthly for routine maintenance. Boarding kennels and doggy daycares need comprehensive facility treatments every 30-45 days plus daily spot treatments of high-traffic areas, runs, and play yards, budgeting $500-1,500 monthly depending on facility size. Pet stores with livestock areas (rabbits, guinea pigs, chicks) require careful product selection avoiding formulations toxic to birds or small mammals, limiting treatment options and requiring specialized applicator training. Animal shelters dealing with constant intake of flea-infested strays need intake quarantine areas with aggressive treatment protocols before animals enter general population housing, preventing facility-wide infestations. Office buildings where employees bring pets to work implement preventive policies requiring proof of monthly flea preventives and quarterly treatment of pet-friendly areas including break rooms and outdoor spaces. Rental property management companies treating vacant units between tenants use guaranteed treatments with 60-90 day warranties, protecting against tenant complaints and ensuring units are ready for immediate occupancy. Apartment complexes with infestations conduct building-wide surveys identifying all affected units and coordinate simultaneous treatments during business hours, providing advance notice meeting lease requirements and local regulations. Hotel and resort properties discovering fleas in guest rooms require immediate response within 24 hours, room closure during treatment, professional certification of clearance before re-renting, and documentation for liability protection. Commercial properties often require Material Safety Data Sheets, applicator certifications, and insurance certificates that homeowner services don't need, adding administrative costs of $50-100 per service call. Treatment timing for commercial settings must accommodate business hours, customer access, and revenue impacts—overnight or weekend treatments that cost 20-40% more often make business sense compared to disruptive daytime closures.