I presently have propane and I am converting to natural gas. To do this, I had to get a contractor to replace the hot water heater(told me that it was not convertible) and get a propane connection changed on the fireplace. I know the contractor and thought I could trust him but, some things don't sound right. They sent me a contract through the mail for an estimate, had to sign, give a deposit(a little over $100 for $1500 job) and send it back before they would even make an appt to fix it. A guy came to get the model # to order the new hot water heater. Now they say they have to come back to see what they need to do the job. I had told them what had to be done and that is when they send the contract estimate so, how could they send me a contract estimate if they had to come to the house to see what they need? I am so new to all this and it's my first house. Am I being taken for a ride? Is it normal to get a bit of money up front for what I consider a small job and I could very well be wrong? Is it normal to have to sign a contract for something like this? TIA I guess I should also ask does the $1500 sound reasonable?