In most cases, standard homeowners insurance does not cover sewer line repairs unless the damage is sudden, accidental, and caused by a covered peril such as fire, explosion, or vehicle impact, and the line is located on your property. Damage from wear and tear, poor maintenance, floods, pests, earthquakes, or tree roots is typically excluded unless you have purchased an additional endorsement for sewer line coverage. Understanding what is and is not covered can help you avoid costly surprises.

Table of Content:

When Sewer Line Repairs Are Covered

Homeowners insurance is designed to protect against sudden, unexpected losses caused by specific perils listed in your policy. While sewer lines are usually excluded from standard coverage, you may be covered if:

  • The sewer line damage happens suddenly and accidentally
  • The cause is a covered peril in your policy
  • The damaged section is located on your property

Example: If a vehicle accidentally drives onto your yard and crushes part of your underground sewer line, your homeowners insurance may cover the cost of repairs up to your policy limit.

Common Causes That Are Not Covered

Most sewer line problems result from gradual damage or issues that insurance companies consider preventable. Common uncovered causes include:

  • Wear and tear from aging pipes
  • Corrosion or natural deterioration over time
  • Poor installation or construction defects
  • Tree root intrusion into the pipes
  • Flooding from heavy rain or storms
  • Damage from pests such as rodents or insects
  • Earthquake-related damage

Example: If your clay sewer pipe cracks after decades of use, your insurer will likely deny the claim because the cause is considered normal deterioration.

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Adding a Sewer Line Endorsement

Many insurers offer an optional service line endorsement or sewer line rider that can be added to your homeowners policy for an extra premium. This add-on can cover repairs or replacements for buried utility lines, including sewer lines, damaged by certain causes that standard policies exclude.

Coverage and limits vary, so review the details with your insurance agent. This small investment can help prevent thousands of dollars in out-of-pocket costs.

What About Septic Tanks?

If you have a septic system, your homeowners insurance might cover sudden and accidental damage to the tank or connecting pipes caused by a covered peril. However, issues from neglect, lack of maintenance, or wear and tear are generally not covered.

Example: If a lightning strike damages your septic pump, your policy might pay for repairs. But if the pump fails due to rust and lack of service, you’ll have to cover the expense yourself.

A severely corroded and rusted cast iron sewer pipe segment is shown with significant build-up and a large hole on the inside. Tree roots are visible growing around and into the pipe from the outside, highlighting common causes of sewer line damage.

Tree Roots and Sewer Line Damage

Tree roots are a frequent cause of sewer line blockages and cracks. Unfortunately, damage from roots is typically excluded from coverage. In rare cases, if root damage is deemed sudden and accidental (such as a nearby tree falling and breaking the pipe), your insurer may consider it.

Even if the pipe repair is excluded, some policies may cover secondary damage for example, water backup that damages your flooring. However, this usually requires separate water backup coverage.

Tips to Prevent Sewer Line Problems

Prevention can save you from major repair bills and insurance disputes. Consider these tips:

  • Schedule professional sewer line inspections every few years
  • Replace outdated clay or metal pipes with modern PVC
  • Install root barriers if you have trees near your sewer line
  • Avoid flushing wipes, grease, and non-biodegradable items
  • Maintain your septic system according to manufacturer guidelines

When to Contact Your Insurance Provider

If your sewer line is damaged, contact your insurance company as soon as possible. Provide details about the cause, location, and extent of the damage. Your adjuster will determine whether your policy covers the loss.

If you’re unsure, an insurance agent can help you review your policy and recommend additional coverage if needed.

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Final Thoughts

If you have further queries about using your homeowner’s insurance for plumbing services, contact us. We can give you pointers or suggest a nearby agent who can give you professional advice. New Flow Plumbing has been solving plumbing problems that others cannot. We not only meet all of our client’s needs, but we also have specialized knowledge from which property owners frequently benefit. Explore our services or contact us to request a free quote for more information on our sewer repair options.

FAQs

Standard homeowners insurance only covers sewer line repair under very specific, rare conditions. The damage must be sudden and accidental, and the cause must be a covered peril listed in your policy, such as a house fire, an explosion, or if an airplane or vehicle crashes into the line on your property. Crucially, the damaged section must be located on your private property, not under the public street. If a sudden, covered incident does occur, New Flow Plumbing can provide specialized repair services and documentation that may assist with your insurance claim process.

Most of the typical reasons for sewer line failure are excluded because they are considered gradual, predictable issues. This includes wear and tear from the pipe material aging, corrosion from rust or soil conditions, poor installation or construction flaws, and general deterioration over time. Since these are seen as maintenance issues, you are responsible for the repair bill. When facing these uncovered, complex repairs, New Flow Plumbing offers expertise in pinpointing the exact cause and providing effective, lasting solutions.

Insurance companies classify damage caused by tree roots as a maintenance issue because the roots slowly grow and push into the pipes over a long period. They argue that this slow, preventable damage is not a “sudden and accidental” event. Even though the repair to the pipe itself is excluded, you may have coverage for secondary damage, like water backing up into your basement and ruining the flooring, but this typically requires a separate Water Backup Endorsement on your policy.

The best way to protect yourself is by buying an optional add-on called a Service Line Endorsement or Sewer Line Rider. You pay a small extra fee (premium) each year for this coverage. This endorsement is specifically designed to cover the repair or replacement of buried lines, including your sewer, for common excluded causes like damage from tree roots, freezing, and general deterioration. It’s a small investment that can prevent thousands of dollars in unexpected costs.

You should be proactive! Schedule a professional sewer line inspection using a camera every few years, especially if your house is older than 25 years. Plumbers can spot early cracks or root problems. Consider modernizing by replacing old materials like clay or cast iron with durable PVC pipes. If an inspection reveals a failure, New Flow Plumbing can provide you with detailed video evidence and a full range of sewer repair options, including less invasive trenchless repair, before the problem becomes an emergency.

Yes, both earthquakes and floods can severely damage underground utility lines, but standard homeowners insurance does not cover either peril. To protect your home and its utilities from these specific natural disasters, you must purchase a separate Flood Insurance policy (usually through the federal program) or a dedicated Earthquake Insurance policy. Your standard policy will strictly exclude any damage directly or indirectly caused by these events.

If you have a septic system instead of a city sewer connection, the tank and connecting lines are treated similarly to the main sewer line. Damage must be sudden and accidental and caused by a covered event, like a fire or a vehicle impact. Problems related to neglect, such as the tank needing pumping or a pump failing due to rust or lack of service, are considered maintenance and are not covered.

Be extremely careful about what you flush and put down your kitchen drains. Never flush “flushable” wipes, paper towels, grease, oil, coffee grounds, or harsh chemicals. Grease hardens inside the pipes, and wipes clog them, leading to major backups. Maintaining your pipes properly is the best defense against a costly claim denial. If you experience a significant blockage, calling New Flow Plumbing will give you access to licensed experts who can clear the clog without damaging the pipe interior.

If your insurance claim is denied, you are responsible for paying the full cost of the repair. You will need to immediately hire a qualified plumbing company to fix the line, as sewer issues are typically urgent. For trustworthy service and specialized knowledge from a company dedicated to solving these issues, New Flow Plumbing can quickly provide a detailed assessment and a non-binding free quote for all necessary repairs.

You should call your insurance agent or company’s claim line immediately after discovering a significant sewer line break or a backup into your home. The longer you wait, the more damage can occur, which could complicate your claim. If you are unsure whether the damage is covered, your agent can help you review your policy and recommend whether adding a service line endorsement would be beneficial for future protection.

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Arman Grigoryan

Founder & President of New Flow Plumbing

Arman Grigoryan is the founder and president of New Flow Plumbing, proudly serving Los Angeles, Sacramento, and surrounding areas. With extensive experience in plumbing diagnostics, he leads a skilled team specializing in advanced sewer and drain camera inspections to quickly identify problems and deliver lasting solutions. Arman is dedicated to using the latest technology to provide reliable service, honest answers, and dependable results for every customer.

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