Does Homeowners Insurance Cover Sewer Lines?

Often not, at least for the pipe itself. New York City’s Department of Environmental Protection says repairs to water and sewer service lines “are not covered by most home insurance policies,” and the Texas Department of Insurance lists wear and tear and earth movement among the risks most home policies don’t cover. Sewage backing up into the house is a separate question, and it usually needs an add-on: Wisconsin’s insurance regulator says water damage “due to sewers or drains backing up is also excluded” from most homeowners policies. Two endorsements fill those gaps, and Colorado’s Division of Insurance describes both: service line coverage for the buried pipe, and water backup coverage for damage inside the home. Policies vary, so the answer for your home is in your own policy and with your insurer or agent. This page is general information, not legal advice.

What is usually excluded

The Texas Department of Insurance publishes a table of “common risks that most policies do and don’t cover,” adding that “coverages vary by company.” Among the risks most policies don’t cover:

wear and tear;
earthquakes or earth movement;
a continuous water leak;
flooding.

On the other side of the same table, TDI lists “sudden and accidental release of water or smoke” among the damages most policies do cover.

If your sewer line failed from age, settling or roots, ask your insurer how these exclusions would apply to it. Tree roots in the sewer line explains how root damage develops.

Backups are excluded on their own terms. Wisconsin’s guide (revised July 2026) says losses from the backing up of a sewer or sump pump “are not covered under your homeowners insurance policy and are probably not covered by your flood insurance policy.” Minnesota’s Department of Commerce says “neither flood insurance nor a typical homeowner’s insurance policy will cover damage caused by sewer back-ups.”

Service line coverage and water backup coverage

These are two different add-ons, and you may want both. Colorado’s Division of Insurance describes them this way:

Endorsement	What Colorado’s Division of Insurance says it covers
Service line coverage	“The cost of repairing or replacing damaged utility lines on your property, such as sewer pipes or power lines, which aren’t typically covered under standard policies.”
Water backup coverage	Also called sewer or sump pump backup coverage; it “covers damages caused by the backup of sewers or drains, or overflows from a sump pump.”

What other regulators add about water backup coverage:

New York: “Some homeowners insurance companies offer” a water backup endorsement, and “the wording of the endorsement will vary between insurers, but generally it will apply to several types of water backup including municipal sewer lines, toilets and sump pumps.” For an additional premium it removes the exclusion “up to the dollar limit you select.”
Florida: the endorsement covers water that backs up into the home from a sewer, sump or drain, “such as a toilet overflow,” and “will not provide coverage for damage caused by floods.”
Wisconsin: sewer backup coverage is “available through most insurance companies but may not be offered to you when purchasing homeowners insurance coverage if you do not ask for it.”
Minnesota: the endorsement “varies from company to company.” Some companies cover a sewer backup even during a flood, and some exclude it if it happens at the same time as a flood. It “should not be viewed as a purchase of flood insurance.”
Texas: “Backup of sewers or drains” is on the state’s list of common endorsements.

The Insurance Information Institute says sewer backup coverage “is available from most providers for a nominal cost.”

City protection plans and warranties are separate from your homeowners policy

Some cities and utilities offer, or partner with, service line warranty plans. New York City’s DEP, for example, offers a voluntary sewer line protection plan through a private warranty company, billed with the water bill at up to $143.04 a year under the NYC Water Board’s rate schedule effective July 1, 2026; no customer is required to buy it, and the DEP notes there are “circumstances or existing conditions” it won’t cover.

Indiana’s Office of Utility Consumer Counselor says these line protection plans are voluntary, and suggests checking first whether your homeowners insurance already covers line replacement: “The only way to know is to read your policy, talk with your insurance agent, or both.” It also suggests asking how a plan defines pre-existing conditions, and whether it has a deductible or a maximum it will pay.

Who owns which part of the sewer line

Insurance only matters for the part of the pipe that is yours, and that depends on the city. In Seattle, “if you own your home or building, you own your side sewer to the public sewer main,” even under the street. In San Francisco, the owner owns the whole lateral but repairs the section from the building to the curb, while the SFPUC, after inspecting it, does needed repairs to the section from the curb to the main “under most circumstances” at no extra cost. Our sewer line repair cost guide compares five cities.

If the city’s sewer caused a backup, the claim may go to the city, not your insurer. Seattle Public Utilities says that if a backup “was caused by a SPU sewer issue you can file a claim with the City for reimbursement of your costs.” In New York City, the DEP says to contact the City Comptroller’s Office within 90 days if you believe the City was at fault.

Documenting damage for a claim

If sewage is coming into the house, keep people away from it and away from water near outlets or appliances, and call a licensed plumber. Then, drawing on the Minnesota Department of Commerce, the Insurance Information Institute and Seattle Public Utilities:

Call your insurer as soon as you can (Minnesota), or contact your insurance professional “as soon as possible” (Triple-I).
Photograph the damage. Triple-I suggests “after” photos and an itemized list of losses, and taking “before” photos of areas at risk ahead of time.
Keep every receipt and invoice for cleanup and repairs (Triple-I, Seattle).
Get written estimates to show proof of your claim (Minnesota).
Ask about “loss of use” coverage if you need temporary housing (Minnesota).
Keep a copy of the sewer camera video. Seattle says it can be useful “if you ever wish to file a claim with the City.” See sewer camera inspection cost.
Take reasonable steps to prevent more damage “without endangering yourself” (Minnesota).

Questions to ask your insurer

Does my policy exclude sewer or drain backup? If I have a water backup endorsement, what is its dollar limit and deductible?
Would backup coverage apply if a flood happens at the same time?
Do you offer service line coverage? Which lines does it include, does it cover any part of the line under the sidewalk or street, and what is the limit?
Which exclusions would apply to a sewer line that failed from age, roots or settling?
Does my policy include loss of use if a backup makes the house unlivable?
What do you need from me to file a claim: photos, plumber’s report, camera video, estimates?

For the same questions about a leak under the slab, see Is a Slab Leak Covered by Insurance?

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Sources

Checked 2026-10-31