Built a new home and toilet backed up with 3 break...

Built a new home and toilet backed up with 3 breaks and 6' collapse of sewer. Replaced or repaired the following: garbage disposal , cabinet doors and drawers, kitchen outlets, closet doors, locks, separation crack between garage and wall, range hood, microwave, uneven floor, floor tiles, flooding in lanai due to poor design, ceiling nails and more. Hiring building inspector before the year is up. Not happy about eating the blowing sand and dust from the construction, was misinformed by salesperson. Neighbors are great.