Sewer backflow preventers are an essential part of your home's plumbing. Here's why you need one and how to test if yours is ...

Find his work on sites like Angi, USA Today and The Pen... Backflow preventer installation costs between $105 and $1,400, with the average property owner spending $325 per backflow preventer.

Broussard Services (615-988-6030) has announced backflow prevention device inspections as part of its residential and ...