Most Heating & A/C companies have something they call 24 hour emergency service. This service is for clients that have Heating & A/C emergency situations outside of the normal 9 to 5 corporation hours. If your AC system breaks on Memorial day plus you have a celebration, call for an emergency AC repair. If your gas furnace is broken on a Tuesday night, you can still get a oil furnace repair. The Heating & A/C service is meant to help you out in a bind. The negative is that the Heating & A/C provider knows that they are getting you out of a pinch. They also are hiring a Heating & A/C worker outside of the normal hours. So you can get yourself a Heating & A/C service whenever you want, however you are going to spend your money heavily for the price, and last Winter I literally had a Heating & A/C emergency. My heating system turned off around 8 at night. The oil furnace refused to turn on plus the condo started getting colder. I could have called for a heating system service right then plus there. I didn’t though. I messed around with the gas furnace filter, the motors plus the gas hookups. I finally decided to just wait until 9 the next day. I went to bed with no gas furnace turned on at all. My current home got to be about 40 degrees. I was so cold all night long without any gas furnace heat on. I also had to get ready for work, call a heating supplier plus arrange for an oil furnace service for later that day. It was such a mess plus horrible. However, I had to pay the normal oil furnace service price for it.