How much you can or should attempt to do depends on your ability and knowledge of remodeling. You’ll definitely be able to tear out old cabinets (be careful not to damage walls and beams), take up old vinyl flooring and handle trash removal. You may also want to paint or wallpaper on your own. You’re better off letting the pros handle plumbing and appliance hook-ups — if you try it on your own, you may violate building codes or invalidate manufacturer warranties. Let a professional installer put your new cabinets in so they look their best.