Married man asked me for a hug. Is this normal?

He is a technician worked in my house a few times over the past couple of years. I might have seen him 5 times. He is very nice and friendly. Every time he came there has always been other people in my house or my kids around. The last time I was by myself. He worked we had casual conversation, I paid and a few seconds later he said with a big smile "come over her and give me a hug".
It caught me off guard so I lean over and give him a quick hug, pulled away with no eye contact and walked him to the door without saying anything.
What is this supposed to mean? Is it normal? We are both married.
Married man asked me for a hug. Is this normal?
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