If your drains suddenly backed up or your sewer line collapsed, would your policy protect you, or leave you with a surprise bill?

Most Texas homeowners assume they are covered for these situations. The reality is very different, and often only discovered after a claim is denied.
In this guide, you will learn why sewer line damage is usually not covered, the difference between backup and service line issues, why North Texas homes are especially at risk, and how to fix these gaps before they cost you thousands.
Why Sewer Line Damage Is Usually Not Covered
Imagine this scenario.
Your drains start backing up. A plumber inspects the issue and finds that the sewer line from your home to the street has collapsed. Repairing it requires digging up your yard.
The cost comes in around $7,500.
You call your insurance company, expecting help, and they tell you it is not covered.
This situation is far more common than most homeowners realize.
Standard Texas homeowners policies, specifically HO-3 policies, exclude damage to underground pipes and service lines. This is not hidden language. It is a clearly defined exclusion that applies to most policies.
The Two Problems Homeowners Confuse
Many homeowners think sewer issues are all the same. They are not.
There are two completely different types of claims, and both are typically excluded.
Sewer and Drain Backup
This occurs when water from a municipal sewer system flows back into your home through drains, toilets, or sinks.
- Can cause $10,000 to $30,000 in interior damage
- Affects flooring, walls, and personal belongings
Service Line Damage
This involves the physical failure of the underground pipe connecting your home to the street.
- Requires excavation and pipe replacement
- Often costs $3,000 to $10,000 or more
These are separate risks, and each requires its own coverage endorsement.
Why North Texas Homes Face Higher Risk
If you live in North Texas, your risk is even higher.
The primary reason is the soil.
North Texas has heavy clay soil that expands when wet and contracts when dry. This constant movement places stress on underground pipes over time.
Add in older neighborhoods in areas like Arlington, Roanoke, Fort Worth, and Denton, where many homes still have original cast iron or clay sewer lines, and the risk increases significantly.
For many homeowners in North Texas, sewer line failure is not a matter of if, but when.
The Two Coverages That Protect You
The good news is that these risks are preventable with the right endorsements.
Sewer and Drain Backup Coverage
This coverage protects your home from damage caused by sewer backups.
- Typically costs $40 to $100 per year
- Covers cleanup, repairs, and damaged contents
- Claims often range from $15,000 to $25,000
Service Line Coverage
This coverage applies to the underground pipes outside your home.
- Typically costs $30 to $60 per year
- Covers excavation, pipe replacement, and yard restoration
- Claims usually range from $3,000 to $10,000
For roughly $70 to $160 per year, you can cover two of the most common and expensive homeowner risks in North Texas.
How to Check If You Have This Coverage
You can verify your coverage in just a few minutes.
Open your homeowners insurance policy and review the endorsements section. Look for:
- Water backup and sump overflow
- Sewer and drain backup
- Service line coverage
- Underground service line
If you do not see these listed, you likely do not have coverage.
If your annual premium is under $2,000, there is a strong chance these protections were excluded to keep the price lower.
Frequently Asked Questions
Does homeowners insurance cover sewer line damage in Texas?
No, standard homeowners policies typically exclude sewer line damage and underground service line failures unless additional coverage is added.
What is the difference between sewer backup and service line coverage?
Sewer backup covers water entering your home through drains, while service line coverage protects the underground pipes connecting your home to the street.
How much does sewer backup coverage cost?
It usually costs between $40 and $100 per year, depending on the carrier and coverage limits.
Is service line coverage worth it?
Yes, especially in North Texas where soil movement and aging pipes increase the likelihood of failure.
Avoid a Costly Surprise
Sewer line damage and backups are two of the most common and expensive issues Texas homeowners face, yet they are almost always excluded from standard policies.
The real risk is not the cost of coverage, it is the cost of going without it.
At Neill Insurance, we help homeowners identify coverage gaps and build policies that actually protect them when it matters most. If you want help adding the right coverage, request a quote and get expert guidance tailored to your home.

