My parent's Brookyn apartment had a bed bug problem, but the infestation appeared to be localized in my mother's bedroom. I was concerned about the effect of chemcals on my elderly parents, so I decided to try the Bedbugsbegone heat treatment. The room was heavily cluttered, so Andrew warned me that he would heat the bedroom for $650, but he could not give a guarantee. He brought his high powered heaters and was able to heat the room to 120 F. The heat appeared to kill most of the bugs, but we were not convinced that we got them all. Andrew called a few days later and offered to heat the room again for just gas money. I insisted on paying $100. This time they were able to heat the room to 128 F. We didn't find any more dead bugs, so it is possible that the first heating did get them all. Overall, Bedbugsbegone offers a lower cost, chemical free option. They understand how to use apartment electrical systems to suppy their powerful heaters. I do recommend this company.