Burst Pipe, Mold, and a Surcharging City Main
Priya's homeowners policy (HO-3 form) shows $480,000 Coverage A, Coverage B at 10%, Coverage C at 50%, a $2,000 all-perils deductible, and replacement cost on both dwelling and contents. Endorsements add water backup and sump overflow with a $10,000 limit, a $10,000 mold remediation sublimit, and 10% ordinance or law. In February a supply line to the upstairs laundry burst while the family was away for a long weekend. Damage: $52,000 to drywall, flooring, and cabinets; $31,000 of mold remediation in the wall cavities; $8,500 to replace furniture and a rug; $3,400 for debris removal. Two days later, while mitigation was underway, the city main surcharged and sewage backed into the finished basement, causing $6,800 of damage. The dwelling's confirmed replacement cost is $512,000.
1. Determine whether the Coverage A limit is adequate before paying anything, showing the calculation.
Read the worked answer
Check the replacement-cost threshold, not the limit itself.
Many homeowners forms settle dwelling losses at replacement cost only if the Coverage A limit is at least 80% of the dwelling's full replacement cost. Here:
- 80% × $512,000 = $409,600 required
- Limit carried = $480,000
- Ratio to requirement = 480,000 ÷ 409,600 = 117%
The limit clears the threshold, so no reduced or actual-cash-value settlement applies to the building. This is the step adjusters skip and then argue about later; run it first so the settlement figures downstream are not reversible.
Note the limit is also below full RCV ($480,000 vs. $512,000), but that is not a penalty situation - it only matters if the loss approaches the limit, which it does not here.
2. Compute the payable amount, treating the two water events correctly and applying sublimits and deductibles.
Read the worked answer
Event 1 - burst supply line (one occurrence):
| Item | Incurred | Payable |
|---|---|---|
| Building repair | $52,000 | $52,000 |
| Mold remediation | $31,000 | $10,000 (sublimit) |
| Contents (replacement cost) | $8,500 | $8,500 |
| Debris removal | $3,400 | $3,400 |
| Subtotal | $73,900 | |
| Less deductible | ($2,000) | |
| Event 1 total | $71,900 |
Event 2 - sewer backup: The water-damage exclusion would bar this, but the backup endorsement buys it back, capped at $10,000. Loss is $6,800, under the cap.
$6,800 − $2,000 deductible = $4,800.
Why a second deductible: the backup occurred two days later from a separate cause (municipal surcharge), not from the burst line. Two occurrences, two deductibles. The insured will argue one continuous event; the carrier's position is stronger because the causes are independent, but if the surcharge can be tied to the same water event, expect a negotiated single deductible.
Total payable: roughly $76,700.
3. What conditions and pitfalls should the adjuster build into the settlement letter?
Read the worked answer
Ordering of sublimits and deductible. Apply the mold cap to the mold portion and the deductible once to the occurrence total; state the method in the letter so the insured cannot later recompute and demand $2,000 more.
Replacement cost is not payable up front. Dwelling RC is paid on a repair-or-replace basis; contents RC generally requires replacement within a stated window (commonly 180 days). Issue actual cash value first and hold the recoverable depreciation as a claimable amount.
Debris removal is an additional coverage with its own cap (often 5% of the limit above the Coverage A limit) - confirm the form language before paying, but $3,400 is comfortably inside it.
Unaddressed exposures worth checking: whether the home was habitable (ALE is a separate coverage with its own limit and time cap), whether the $31,000 mold figure reflects reasonable mitigation or an inflated contractor estimate, and whether ordinance or law coverage is triggered by any required code upgrade on the rebuild - the 10% endorsement is there and the insured will not raise it unprompted.