The pest management solution(s) proposed should address the problems you have, period. Here, the technician is treating the soil beneath a slab to control termites. This is an important step for a termite treatment, but would be useless for mosquitoes- for instance. Be sure you are getting a service that addresses your wants and needs.
Treating the soil beneath a slab to control termitres

M. Waldvogel - NCSU - Entomology & Plant Pathology