Hello folks, thought I'd mention HVAC in the Illinois area—especially around the Northern Illinois area. With the crazy weather patterns we get locally, it’s essential to have a trustworthy heating and cooling solution. I just had work done by Optimized Air Heating and cooling company near Grayslake [https://www.multichain.com/qa/index.php?qa=user&qa_1=wishstorm5] in Round Lake, and they were really good—quick response, reasonable rates, and were very transparent about what needed to be done. If you're having issues with furnace problems or need an AC tune-up before the next heat wave, I’d encourage finding a nearby company that is familiar with local conditions. Stay warm!