Ocws Major Appliance Repair

I called to get my dryer repaired. It was making noise. A Tech came out and gave an estimate to replace wheels on it. Charged me 320 dollars to do it. I never delt with dryer repair before and didnt know what excatly would need to be done. When he repaired it i called around and got an estimate for $190 to do the same work. They came the same day and the tech knew what he was doing but $130 dollars difference just seems a little too steep