Now is the season for prevent storm lines from cracking do to freeze ups from blockages caused by falling leaves that clog outside drains and leader lines.

Once these lines become blocked the melting snow had no place to drain thus the piping freezes and cracks

Once these lines are water jetted then the main sewer and trap should be snaked and flushed to remove all grease /soap scum deposits as well as removing any roots or other debris that had accumulated over the year.