Deciding whether water and sewer-line insurance is worth it depends largely on your home’s condition, your financial resources and your comfort level with risk. If you live in an older home with no recent plumbing upgrades, both coverages may provide inexpensive protection from potentially large expenses down the road. Service-line coverage could prove particularly valuable if your home has old sewer pipes that run under retaining walls and/or concrete walkways, or if they are buried near trees.