What Is Service Line Coverage on a Homeowners Policy?
Buried lines running to a house are easy to forget about until one of them fails, at which point the question of whether insurance covers digging it up becomes urgent.
The short answer
Service line coverage is an optional endorsement that pays for repair, and often related excavation, when an underground utility line running to a home — such as a water, sewer, drain, or power line — is damaged. Standard homeowners policies typically don’t cover buried service lines at all, since these lines usually sit outside the insured dwelling and outside what a basic policy is built to address, which is why this coverage exists as a separate add-on.
What counts as a covered service line
- Water supply lines. The pipe carrying water from the main connection to the home.
- Sewer or septic lines. The line carrying wastewater away from the home to the municipal system or septic tank.
- Electrical or communication lines. Buried lines bringing power, phone, or data service to the property, depending on the specific endorsement.
- Lines the homeowner is responsible for. Coverage typically applies to the portion of the line that falls under the property owner’s responsibility, not the utility company’s, which is worth confirming since that boundary varies by utility and municipality.
Why standard policies exclude this
A homeowners policy is generally structured around the dwelling and attached structures, along with a defined set of other coverages like personal property and liability. Underground lines running from the house to a street connection typically fall outside that core structure, and damage to them is often caused by gradual issues like root intrusion, corrosion, or ground shifting — the kind of gradual, wear-related causes that most policies exclude regardless of what’s damaged. The endorsement is a way to bring a specific, common piece of underground infrastructure back into coverage on its own terms.
What the coverage typically includes
Beyond repairing or replacing the damaged line itself, this endorsement commonly extends to the cost of excavation needed to reach the line, and to restoring the yard or landscaping disturbed in the process. That combination matters because the excavation and restoration costs on a buried line repair can rival or exceed the cost of the pipe repair itself, which is part of why this loss can be expensive without the endorsement in place.
How it compares with related endorsements
Service line coverage is often bundled with, or sold alongside, other underground and system-related endorsements, such as a water backup add-on for backups originating inside the drainage system, or equipment breakdown coverage for mechanical failures within the home itself. These endorsements address different failure points along the same general path — from the street connection, to the buried line, to the home’s internal systems — so understanding where one ends and the next begins helps clarify what gap, if any, is actually being filled.
The practical takeaway
Homes with older infrastructure, mature trees near buried lines, or a history of plumbing issues tend to carry more exposure to this kind of loss. Reviewing the base policy’s standard exclusions is a reasonable starting point for deciding whether adding this endorsement closes a gap worth closing for a particular property.