I noticed over a one month period a "clicking" noise behind my drywall (upstairs) and later realized (when looking at my roof) there was a wasp nest inside the roof (entry through some raised shingles). Given the number of wasps flying in and out, it appeared to be a fairly large nest. I called Cain Pest Control, spoke to Carlo, and he paid me a visit the following day. Given the size and location, it took a few visits to completely eradicate the nest and seal up the entry point, but the job was done to my complete satisfaction.
I can honestly say that Carlo was on time (every time), reasonably priced, honest and responsive. His follow-up was equally impressive. I would not hesitate to use Cain Pest Control again, and would HIGHLY recommend their services.