I strongly recommend that you do not patronize Houston Pest Management. I contracted for roach infestation services. They sprayed on June 13, and I paid $176 for a 3500 square foot house. Strong infestation returned by early September, and they refused to consider a return to spray, stating that they expect to provide services every 60 days. They do not warrant their work, and will not stand behind their work. I believe that you should search in a reasonably diligent manner for a reputable company, and avoid HPM completely. I will make this recommendation to my neighbors and business associates.