Water main damage is typically not covered by standard homeowner insurance. Water main insurance provides coverage for repair or replacement of your water service line due to leaks, breaks, corrosion, and other failures. In NYC, several providers offer water main coverage for $5-$12 per month. Coverage limits typically range from $5,000 to $15,000. When evaluating policies, consider the coverage limit, deductible, exclusions, and whether the policy covers the full cost of street restoration. For NYC properties with water mains older than 40 years, water main insurance is generally a worthwhile investment.