No house is perfect, even new construction homes. So ask the seller to buy a home warranty and write this into the purchase contract. A home warranty pays out of your mechanical or elctrical systems malfuntion (minus a deductable). Typically, it also covers the air conditioning, furnace, water heater, ductwork, telephone wires, plumbing, and electrical systems. If the home also has a pool, it’s worth asking the seller to buy coverage for that too.