Who Pays for a Leak from an Upstairs Flat?
Usually whoever was negligent upstairs, through their policy's liability coverage, but your own HO-6 covers your unit's damage first.
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Where fault matters
If the upstairs owner left a hose running or ignored a known leak, their policy's liability coverage should pay for damage to your unit. If a pipe burst with no negligence involved, there may be no one to collect from. Your own HO-6 coverage handles it instead.
Your HO-6 pays first
Regardless of fault, your HO-6 is usually what actually pays out fast, covering your walls, floors, and belongings. If the upstairs owner was responsible, your insurer may then seek reimbursement from their policy through subrogation. You are not left waiting on someone else's claim to get repairs started.
What the master policy covers
The building's master policy generally covers shared structure like the roof, hallways, and pipes within walls that serve multiple units. It usually stops at your unit's interior surfaces. Your declarations page and the HOA's policy documents together show exactly where that line falls for your building.
Checking your dwelling limit
Your HO-6 needs enough walls-in coverage to rebuild your unit's interior, from drywall to cabinets to flooring, since the master policy likely won't cover any of that. Underinsuring here means paying out of pocket for the gap between your limit and the real repair cost.
A burst pipe upstairs can mean torn-out drywall, ruined flooring, and weeks of repairs before anyone sorts out who was at fault. Without enough walls-in coverage on your HO-6, that gap lands on you while insurers argue over subrogation. Comparing policies now means checking that your dwelling limit actually matches what rebuilding your unit would cost, not just what you're currently paying.
What if the HOA sends a special assessment after the leak
A leak from an upstairs unit can damage more than two homes. If it travels through a shared wall or soaks insulation that serves the floor below, the building's master policy may need to pay for repairs beyond anyone's individual unit. The HOA sometimes assesses all owners for the part the master policy doesn't cover. That's usually the deductible on the building's own policy, which on a large building can run into tens of thousands of dollars.
Loss assessment coverage on your HO-6 is built for exactly this. It reimburses you for your share of a special assessment tied to a covered loss, like that water damage, up to the limit on your policy. Many HO-6 policies include a modest amount of this coverage by default, often a few thousand dollars. That may not be enough if the building's deductible is high or the damage is extensive. Check your declarations page for the limit and raise it if the HOA's master policy deductible is larger than what you're carrying.
Loss assessment coverage only responds to assessments connected to a loss that would otherwise be covered, like fire or water damage. It does not cover assessments for a new roof the HOA decided to install, a lawsuit settlement unrelated to property damage, or routine capital improvements. Reading the HOA's own master policy, including its deductible and what it excludes, shows how exposed owners are if the building suffers a major loss. Most associations will provide this document on request. It's worth reviewing before a leak happens rather than after.
Townhome insurance works a little differently depending on how the property is structured. Some townhome communities have a master policy similar to a condo association, covering the exterior walls and roof, while the owner insures everything else with an HO-6. Others have no master policy at all, and each owner carries a standard homeowners policy covering the entire structure, inside and out, much like a detached single-family home. Knowing which arrangement applies to your townhome changes how much dwelling coverage you need and whether loss assessment coverage is relevant at all. The HOA or property manager can confirm which setup applies, and it's worth checking before assuming your coverage matches your neighbor's.
Does it matter if the upstairs unit was a renter
A tenant's mistake upstairs is treated the same way an owner's would be. If the person renting left a washing machine hose unattended or ignored a slow leak, the renter's own liability coverage from their renters insurance policy should respond. Most renters carry some form of liability coverage, often without realizing how it works until something like this happens. If they carry no insurance at all, the owner of that unit is still the one legally responsible, and a claim can be made against the owner's landlord policy or personal assets instead.
Either way, this does not change how fast your own claim moves. Your HO-6 still pays for your unit's damage first, regardless of who caused it or whether they had insurance. Your insurer handles the question of collecting from whoever is responsible after the fact. You are not required to track down a tenant, confirm their coverage, or wait on their landlord's insurer to make a decision before your own repairs begin.
Identifying who actually lives upstairs can still matter for the claim file. An insurance adjuster will usually ask whether the unit is owner-occupied or a rental, since that affects which policy they pursue for reimbursement. If you know the unit is rented, telling your insurer that detail early can speed up the subrogation process on their end, though it has no bearing on what you're owed. The HOA may also have separate rules requiring landlords to carry a certain amount of liability coverage, which is worth asking about if leaks from that unit become a recurring issue.
None of this is something you need to resolve yourself. Your policy and the building's master policy exist precisely so that fault gets sorted out behind the scenes while repairs move forward. What matters for you is confirming your own HO-6 has enough walls-in coverage and liability protection to handle a loss like this cleanly, whoever turns out to be at fault.
One thing to check now
Pull up your declarations page and compare your walls-in coverage and loss assessment limit against what rebuilding your unit would actually cost. That gap is the part no one else's policy will cover.
