Service line coverage pays to repair the buried pipes and wires that connect your home to public utilities. These lines include water pipes, sewer laterals, gas lines, electrical cables, and internet or phone lines. Many homeowners assume the city or utility company owns them. In most cases, however, the homeowner owns the stretch running from the property line or street connection to the house.
A standard homeowners policy typically excludes damage to these lines. As a result, a broken sewer lateral can leave you with a large bill. Service line coverage is a low-cost endorsement that fills this gap. It is worth understanding before a pipe fails.
The risk is growing as housing stock ages. Many U.S. water and sewer lines were installed decades ago. Clay, cast iron, and older steel pipes crack, corrode, and attract tree roots. For example, a sewer lateral installed in the 1950s may be near the end of its useful life today. Service line coverage helps with costs that would otherwise come straight out of your savings.
What Service Line Coverage Includes and Excludes
A standard homeowners policy does not cover underground utility lines. Insurers treat them as separate from the dwelling. Most carriers sell an add-on endorsement instead. According to Verisk, ISO offers a standard homeowners endorsement for underground utility lines. Many insurers build their own versions from it.
Service line coverage typically pays for several types of costs. These include repairing or replacing the damaged line, excavation, and restoring outdoor property. Outdoor property can include lawns, landscaping, driveways, and walkways disturbed by digging. Some endorsements also pay for loss of use. For example, ISO’s form provides up to 10% of the coverage limit for extra living expenses if your home becomes unlivable.
Covered causes usually include wear and tear, rust, corrosion, freezing, tree root intrusion, and mechanical breakdown. However, there are important exclusions. One carrier’s endorsement excludes fire, flood, lightning, vandalism, and sinkhole or subsidence collapse. Septic tanks, drain fields, and wells are also often excluded. Always read the endorsement wording before you buy.
What Underground Line Repairs Cost
Underground repairs are expensive because the work requires digging. Costs depend on line type, depth, length, and local labor rates. Sewer lines are usually the most costly to fix. As a result, a single failure can easily exceed $10,000. Service line coverage limits are often set with this in mind.
The table below shows typical industry cost ranges. Actual prices vary widely by region and job complexity.
| Line Type | Typical Repair or Replacement Cost | Common Causes of Failure |
|---|---|---|
| Water supply line | $1,000 – $5,000 | Corrosion, freezing, age |
| Sewer lateral | $3,000 – $25,000 | Tree roots, cracking, collapse |
| Natural gas line | $500 – $4,000 | Corrosion, shifting soil |
| Buried electrical line | $1,000 – $4,000 | Wear, rodents, moisture |
| Endorsement premium | About $30 – $60 per year | Not applicable |
Endorsement pricing is modest by comparison. Many carriers offer a $10,000 limit for roughly $30 to $60 per year. A $500 deductible is common. For example, one carrier’s Georgia and Iowa endorsements carry a $10,000 total limit with a $500 deductible. In most cases, one claim would cover decades of premiums.
Lead pipes add another cost factor. The EPA’s Lead and Copper Rule Improvements require most water systems to replace lead service lines within 10 years. Some utilities may replace the private side at little or no cost. However, rules and funding differ by city. Typically, service line coverage does not pay for planned upgrades or code-driven replacements. It pays for sudden, accidental failures.
How to Add Service Line Coverage to Your Policy
Start by finding out which lines you own. Call your water utility and ask where its responsibility ends. Many utilities own the line only up to the curb stop or meter. Next, check the age and material of your pipes. Older homes with clay or cast iron sewer laterals face higher risk.
Then contact your insurance agent or company. Ask whether service line coverage is available as an endorsement. Compare these key details:
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- The coverage limit, which is typically $10,000 to $25,000
- The deductible, often $500 and sometimes separate from your main deductible
- Which lines are included, such as water, sewer, gas, power, and data
- Whether excavation and landscaping are covered
- Any waiting period for new policies
Be careful with third-party warranty plans. Utilities and private companies often mail offers for line protection programs. These are service contracts, not insurance. They may have lower limits or narrower terms. As a result, an insurance endorsement is often the better value. Your state insurance department can help you verify any company before you sign up.
Finally, maintain your lines. Avoid planting large trees near sewer laterals. Never pour grease down drains. Consider a camera inspection if your home is more than 40 years old. Good maintenance lowers your risk of a claim.
Frequently Asked Questions
Does homeowners insurance cover a broken sewer line?
Typically, no. Standard policies exclude wear and tear, tree roots, and gradual deterioration. However, service line coverage can pay for these failures if you add it to your policy.
How much does service line coverage cost?
In most cases, it costs about $30 to $60 per year. That usually buys a $10,000 limit with a $500 deductible. Prices vary by insurer and state.
Is service line coverage the same as water backup coverage?
No, they cover different problems. Water backup coverage pays for damage inside your home when a drain or sewer backs up. For example, it covers ruined flooring and drywall. Service line coverage pays to repair the buried pipe itself.
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Official Sources & Resources
For verified information on home insurance regulations and consumer protection:
- NAIC (National Association of Insurance Commissioners): naic.org
- Insurance Information Institute: iii.org
- FEMA (Federal Emergency Management Agency): fema.gov
- FloodSmart (National Flood Insurance Program): floodsmart.gov
- USA.gov — Housing: usa.gov/housing
Content last reviewed October 2026. If you notice any outdated information, please contact us.