I signed up to WOM just to leave this review as I'm so disappointed in the terrible customer service they so freely dish out.

These guys charge $250+ for an exterior spray -- cheap price and you get what you pay for. Expect to keep seeing bugs around your place and forget about calling for help - they'll just tell you that they've "done the job to the best of their ability" and then back away, leaving you out of pocket and without any option but to get another company to respray.
We recently had ours sprayed again, 3mo after Envirapest charged us $250 for nothing.
I'll never use this company again.
The only thing I'd recommend is that you stay well away from them.

Approximate cost: $250