what is the cost to service an a/c unit

I used them for a system check and found the pricing competitive with the market

i did not have service i got system replaced. 😀

I did not have service done.

I didn't have my a/c unit serviced my Air McCall, it was replaced. So, I don't know the cost. However, you can have it done as low as $25, depending on the company that you choose to do the service.