Hi I'm Pete with Greenhouse Pest Management, we are Atlanta's true natural pest control company. How to kill bedbugs with cold temperatures. You know what, I don't know. Never heard of it before, never got it, experienced it in my training. I do know that bugs are really resilient, and they are really resilient when it comes to cold temperatures. That is why bugs tend to over winterize during the cold seasons so they come back there in the summer seasons. So you have got to look at other alternatives when it comes to bedbug treatments. Heating wise, chemical wise is going to be your best solutions for bedbug treatments. So you have got two different alternatives. We would come out use natural alternatives insect growth regulators to treat for your bedbug issues, and there will be other companies out there that would actually use a good heating system for it. Unfortunately it is very rare to find a company that uses heat treatments. So your best alternative, and cost effective wise is looking at good chemical treatments.