Mattamy Homes

I bought 2 years old home in 2014 and now its showing the true colors. nails are popping out from everywhere, cracks on drywall, shingles are about to come out, floor tiles cracked, shower is noisy rattling pipes inside, stairs are like raining cats and dogs. Dont buy these houses. they are crap and garbage. how come they built like this even in 4 years things are falling apart. If you talk to them they say its not in warranty. does this statement justify their workmanship. seriously dont buy these fargile homes. They are some kinda looters and Govt cant eye ball on these issues.