Jan 08, 2015 - 09:43 AM
The most popular service offered by pest companies for residential is Quarterly. This service usually is for the outdoor perimeter areas only. Indoor treatments are usually done as needed.
I personally recommend treatments of the outside exterior at the very least in March, June, August and October, with indoor treatments as needed. Demon WP does a great job of keeping most pests out.
Indoors, limit the insecticide use to the garage, storage closets, etc, and use then use Bug Traps such as the 288I to capture and monitor them.
I am not an advocate of indoor spraying unless needed.
Hope this helps.