At Middle Creek Insurance, one of the most common surprises prospective homeowners face is discovering that water backing up through sewers or drains is often not covered the way they expected. “Back up of Sewer & Drains” is not a flood policy. And not all homeowners are the same when it comes to these situations.

Many people assume all water damage is included in their homeowners policy—but sewer and drain backup is treated very differently.
Understanding the difference between an HO-3 policy, an HE-7 form, and HE-7 policies with HE-20 or HE-21 endorsements can help prevent costly surprises later.
Let’s break it down.
What Is “Back Up of Sewer & Drains” Coverage?
This coverage helps protect your home when water backs up through:
- Sewer lines
- Drain lines
- Toilets
- Sump pumps
- Sump wells
- Floor drains
- Overflow from plumbing systems
These claims can quickly become expensive due to:
- Flooring damage
- Drywall replacement
- Cabinet repairs
- Appliance damage
- Mold remediation
- Cleanup and sanitation costs
Without the proper endorsement, many homeowners policies provide little to no protection.
Standard HO-3 Homeowners Policy
A standard HO-3 homeowners policy typically does not automatically include backup of sewer and drains coverage.
Coverage:
Excluded unless specifically added by endorsement
Most insurance carriers require a separate Water Backup endorsement to provide protection.
Typical Limit:
Usually $5,000 to $10,000 if added
Without this endorsement, a sewer backup loss may not be covered at all.
Best For:
Homeowners who want standard protection but need to make sure this important endorsement is added separately.
HE-7 Homeowners Enhancement Form
While HE-7 improves many areas of homeowners coverage, it does not include backup of water and sewer coverage.
Coverage:
Not covered
Even with the HE-7 form, homeowners still do not have protection for sewer and drain backup losses.
Best For:
Homeowners seeking stronger overall policy enhancements—but still needing separate protection for water backup concerns.
HE-7 with HE-20
Adding the HE-20 endorsement still does not provide backup of water and sewer coverage.
Coverage:
Not covered
Although HE-20 enhances several policy features, sewer and drain backup remains excluded.
Best For:
Homeowners wanting broader enhancements, but who still need to understand this important gap remains.
HE-7 with HE-21 (Maximum Protection)
This is where coverage changes significantly.
The HE-21 endorsement provides strong protection for backup of water and sewer losses.
Coverage:
Included
Limit:
$50,000 in coverage
This can be a major financial safeguard for homes with finished basements, high-end flooring, custom cabinetry, and expensive contents vulnerable to water damage.
Best For:
Homeowners who want the strongest available protection and peace of mind against major water backup losses.
Quick Comparison
| Policy Type | Backup of Sewer & Drains Coverage |
|---|---|
| HO-3 | Excluded unless separate endorsement added |
| HE-7 | Not covered- unless separate endorsement added |
| HE-7 + HE-20 | Not covered – unless separate endorsement added |
| HE-7 + HE-21 | Included — $50,000 coverage |
Why This Matters
A single sewer backup can easily lead to:
- $10,000+ in flooring repairs
- Major drywall replacement
- Furniture and appliance damage
- Mold treatment
- Professional sanitation and cleanup
Many homeowners discover this gap only after a claim happens.
The right policy type or the correct endorsement can mean the difference between a covered claim and paying entirely out of pocket.
Final Thoughts
If your home has:
- a finished basement
- a sump pump
- older plumbing
- expensive flooring
- custom cabinetry
- heavy tree roots near sewer lines
…it’s worth reviewing your homeowners policy now.
Not after the damage happens.
At Middle Creek Insurance, we help homeowners understand what their policy actually covers—not just what they assume it covers.
Because peace of mind starts before the claim.
Need a Coverage Review?
Let us help you compare your current homeowners policy and identify whether your sewer and drain backup protection is truly there.
📞 919-524-2149
📍 9704 Fayetteville Rd, Raleigh, NC 27603
Protecting your home starts with knowing what’s included—and what isn’t.






