Our numbers have been sold from some other company regarding "free roofing estimates".  This is another one of those companies who are offering free roof inspections.  Didn't catch the company name but this was call #21 that I've had saying they are in the area and doing free roof inspections.  Yes they have called 2 times a day and don't leave a message for a week or more.  I rent and they don't have a clue when they call and then immediately hang up when you say you rent and contact the owner.  They will stop calling from this number and will probably start calling from another number.  Its been quite a while since the last hail storm here in Denver but this is why they say they are calling.  My guess....A scam roofing company.