Apr 26, 2021 - 02:07 PM
My opinion is that the system is lacking in many ways. We used to service the original "Tubes in The Walls" system here in North Texas back in the 1990's. Without going into a lot of detail, we ended up doing a lot of exterior treatment and also indoor service that was not related to anything in the walls. Treating inside the walls does not eliminate spiders, crickets, fleas, flies nor does it do anything for food pests, weevils, clothes moths, silverfish, and outdoor invaders such as centipedes, millipedes, pillbugs, the list goes on.
I would consider using a standard cheaper service that focuses on outside prevention or consider doing it yourself.