What to Do if Water Leaks from Upstairs to Downstairs
Shut off the water first, then call your insurer. Which policy pays depends on where the leak started.
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If the leak started in the unit above yours, their HO-6 liability coverage is usually the first place a claim goes, especially for something like an overflowing tub. If it traces back to plumbing inside the building's walls, the HOA's master policy may take it instead. Either way, your own HO-6 covers your belongings and your unit's interior finishes no matter whose fault it was. Filing with your own insurer first is often the fastest way to get paid while fault gets sorted out separately.
A worn HO-6 policy without enough coverage for your unit's interior or belongings leaves you paying the gap yourself while the fault question drags on between insurers. Loss assessment coverage matters here too, since a building-wide water loss can bring a special assessment from the HOA. Comparing policies now shows whether your limits and loss assessment coverage match what a leak like this would actually cost.
Who actually pays for the damage
Once the water's shut off and both insurers are called, the next question is which one cuts the check. The honest answer is that it depends on policy language that varies by insurer, and on what the HOA's governing documents say about plumbing responsibility. Some master policies treat all plumbing within the building, even inside walls, as the HOA's responsibility. Others stop at the studs and leave anything inside a unit, including the pipes feeding it, to the unit owner's HO-6. There's no single rule, which is why the declarations page and the HOA's bylaws both matter more than a guess.
Walls-in coverage is the part of an HO-6 that pays to repair the inside of a unit, the drywall, flooring, cabinets, and any upgrades made since the building was built. A master policy typically covers the structure itself, the roof, exterior walls, and common areas. When a leak from upstairs ruins a ceiling and the carpet below it, the HO-6's walls-in coverage is usually what pays for putting that unit back together, regardless of whether the HOA or a neighbor's insurer eventually reimburses anything. That's why the amount of walls-in coverage on a policy needs to reflect the real cost of rebuilding the unit's interior, not a guess from when the policy was first bought.
Loss assessment coverage answers a different question. It covers what happens when the HOA can't cover a shared loss on its own. If the leak damaged common plumbing or affected multiple units, and the master policy's deductible or limits fall short, the HOA can bill each owner a special assessment to cover the gap. Loss assessment coverage on an HO-6 reimburses the owner for that bill, up to the policy's limit. Many standard HO-6 policies include a modest amount of this coverage by default, often a few thousand dollars, which may not be enough if the building's master deductible is high or the damage is extensive. Checking the limit against the HOA's deductible is the only way to know if there's a gap.
Townhome owners sometimes assume their policy works the same way, but it depends on how the property is structured. A townhome with no shared building, no master policy, and no HOA covering the exterior walls or roof needs a more complete HO-3 policy, similar to a detached house, rather than an HO-6. A townhome inside an HOA with a master policy covering the structure looks more like a condo for insurance purposes. The deed and the HOA's insurance documents settle which situation applies, and that answer should come before deciding how much coverage to carry.
What happens when the water damage spreads to multiple units
A single leak from an upstairs unit rarely stays contained to one ceiling. Water travels along joists and through shared walls, so a bathtub overflow two floors up can show up as a stain in a unit three doors down. When that happens, more than one HO-6 policy and possibly the master policy are all looking at the same event from different angles. Each insurer is only responsible for the part of the damage its own policy actually covers.
The order of payment matters more than the dollar amount here. Each affected owner's HO-6 typically pays for that owner's own interior and belongings first, since that coverage sits closest to the loss. The master policy steps in for anything structural, like damaged framing or a ceiling that counts as part of the building rather than a single unit's finishes. If the HOA later decides the loss exceeded what its master policy covers, a special assessment can follow. At that point it's loss assessment coverage on each owner's HO-6, not walls-in coverage, that responds.
None of this requires the unit owners to sort out fault among themselves. The insurers handle subrogation, which is the process where one insurance company seeks reimbursement from another after paying a claim, often the neighbor's insurer if their unit was the source. An owner whose ceiling was ruined doesn't need to wait for that process to finish before getting their own claim paid. Filing with their own HO-6 right away is what gets repairs moving. The question of who ultimately bears the cost gets settled later, insurer to insurer.
The one thing worth checking before any of this happens is whether the HOA's master policy carries a high deductible. Some buildings carry deductibles in the tens of thousands of dollars for water damage specifically. A high master deductible means more of a shared loss falls to a special assessment rather than the HOA's insurer. That makes loss assessment coverage on an individual HO-6 more valuable, not less. The HOA's board or management company can usually provide the master policy's deductible amount on request, and that number is the one to compare against the loss assessment limit on a unit owner's own policy.
Before the next leak
Pull your HO-6 declarations page and find two numbers. The walls-in coverage limit, and the loss assessment limit. Compare the second one against the HOA's master policy deductible, which the board can provide on request.
