meritage homes ripped me off richmond , Texas

I purchased a new home in less than a year ago. I have problems all over the place. A week after I moved in, I tried to d o laundry, water leaks all over the floor from the washer they installed. Less then a month after I moved in, my house started leaking, it was flooded when it rains. Paint in my house is uneven. I looked out of my second story bedroom window and found some cracked shingles on first story roof. A big piece of concrete fell off the corner of my foundation. After six months, I found a large crack running across half of my driveway and they refused to repair. Water won't drain in my back yard , every time it rains, water will go all the up to the side of my house. I can go on and on and on, lots of problems. very very dissatisfied. I don't know how long this house is going to last.