I have to work on the day of my furnace installation

This week when I am getting my new gas furnace installed, I am not going to be able to be home at the time that the installation workers are coming. I have to work that day, and there is no way for me to be able to get off to come home long enough to have the gas furnace installed. I tried to get it changed, but if I wait and skip this slot on their time schedule, then I am going to have to wait for more than two more weeks and the weather is already cooling down quite a bit! I do not want to wait any longer. But I also do not want to have people inside my home that I do not know when I am not at home, even if they are qualified heating plus air conditioning workers. I am entirely paranoid about stuff like that most of the time. I know that the heating plus air conditioning workers are actually fully insured and certified and they are actually all entirely stand up guys. I just have an issue with trusting people being inside my home when I am out there. I know that this mainly says a lot about me and not actually much about them. I know I am just going to have to see if I can find someone else to come and let them in and hang around the home while I am at work or something; Either that, or I am just going to have to suck it up and deliver them the code so they can get into the home to do the gas furnace installation while I am gone. I just do not see that happening though.

Heating and cooling provider