What is the etiquette here?

I am SO stressed out today.

About four months ago we signed an agreement with a local company (whose name I will not mention...yet) to install new windows in our home. This is costing us $4,000. This company told us it would take about 3 weeks before they got to our job. Yeah...this was four months ago. So today they decide they are going to install our windows. Called me yesterday to say that they would be at our house between 8:30 and 9:00. This morning at 8:15 I get a call from the company owner saying that one of his guys didn't show up. Now they want to store the windows in our garage and will only get to maybe 3 of them today. My husband waited for them at the house. The men who showed up are complete rednecks. Tattoos on their necks, all of them smoking, none of them will really look you in the eye when you speak to them.

And now these men are in my home. UNaccompanied. I am so nervous about this. It is making me sick. #1, they better not smoke in my house. #2, they better not leave cigarette butts in my yard. #3, what if they go through our stuff? What if they go through my files and get all of my personal information? I just do not trust them.

This is a reputable company that has been in our town for quite some time. But ugh...how am I supposed to trust these men? I mean, come on....NECK tattoos!!!!!!

I hate contractors. They are liars. They will say anything just to appease you in the moment and then turn around and do exactly the opposite of what they said. I don't know how to deal with this situation. I am not one to call and get all rude with them because they have the upper hand right now. They are in my home. I just do not like this at all. I really don't know what to do.

And just now I posted the same question on my ivillage message boards and the first response I got was one saying that they would NOT allow anyone unaccompanied in their house. This makes me feel even worse. I don't know what to do. I can't leave work and neither can my husband. I'm just stuck.

*************
Update: Wow...I think I kind of freaked out earlier. I don't know what came over me but I was just so stressed out over that. The solution was easy. I called the company's owner and talked to her about my concerns. She made me feel so much better. Said people will leave their keys with them all the time and even go on vacation while they are working. I know she HAD to say that, but she was definitely reassuring. She said that they wouldn't hire anybody if it was a concern.

I seriously think I freaked out due to hormones. I don't normally get like THAT. I mean, obviously I worry a lot, but that was an extreme case of weird-ness for me. Phew...I'm blaming the baby on that outburst.