Our's was for mechanical things. It covered not only the built in stuff in the house such as heater, ac, oven, but it also covered our refrig. washer and dryer. We used it several times and only had to pay $45.OO service call and it worked up well except with our AC. They did not want to use standard parts and were going to retrofit the system to make it work. We said "No Way" and had them pay us the amount of the claim and we then found our own AC guy to fix it. That's the only problem we had. It's nice when the sellar offers it, because it gives you peace of mind that should something breakdown in that first year that your there, you won't be paying an arm and leg to get it fixed.