TL;DR: Condo water damage involves two separate insurance policies: your HO-6 (individual unit policy) and the building’s master policy held by the HOA or condo association. Which one pays depends on where the water originated, what your master deed defines as “common elements,” and whether negligence is involved. In most cases, your HO-6 covers damage inside your unit, the master policy covers shared building components, and the at-fault neighbor’s liability coverage may come into play if their negligence caused the loss. Read your master deed before assuming anything.
You woke up to water dripping through your ceiling, and the unit above you has a burst washing machine hose. Now you’re staring at soaked drywall, ruined flooring, and two insurance policies you’ve never had to use. This situation plays out constantly in high-rise and garden-style condos across Jersey City, Hoboken, Fort Lee, and Brooklyn, and the coverage question is almost never as simple as “call your insurer.” Here is how the responsibility typically divides, what each policy usually covers, and what you should do right now.
What is the difference between an HO-6 policy and a condo master policy?
An HO-6 is the individual condo unit owner’s insurance policy. The master policy is purchased by the homeowners association (HOA) or condo association and covers the building’s shared structure and common areas. These two policies are designed to work together, but the boundary between them is set by your master deed, not by a universal rule.
The HO-6 typically covers:
- Your personal property (furniture, electronics, clothing)
- Improvements and betterments you made to the unit (upgraded flooring, custom cabinetry)
- Personal liability if someone is injured inside your unit
- Loss of use if you have to temporarily relocate
- Water damage to your unit’s interior surfaces, depending on the policy language
The master policy typically covers:
- The building’s exterior (roof, exterior walls, foundation)
- Common areas (hallways, lobbies, elevators, shared mechanical rooms)
- Shared plumbing risers and supply lines that run through walls between units
- In some cases, the “bare walls” of individual units, meaning the drywall and structural components but not your finishes
The key phrase is “bare walls in” versus “all-in” (also called “all-inclusive”) coverage. A bare-walls master policy covers only the structure up to the unfinished interior surface. An all-in master policy covers interior fixtures, flooring, and sometimes appliances. Your master deed defines which type your building carries. This single document determines a lot about who pays for what, so locate it before you file anything.
Who is responsible when water leaks from an upstairs unit into yours?
Responsibility for condo water damage depends on three things: where the water came from, whether someone was negligent, and what your master deed says about the plumbing that failed.
Here is how it usually breaks down:
The water came from a shared riser or building pipe. If the pipe that failed is a common element (shared building plumbing), the association’s master policy is typically responsible for the resulting damage to the building structure. Your HO-6 covers your personal property and any unit-interior damage the master policy does not pick up.
The water came from inside your neighbor’s unit. If the source is a private appliance (their washing machine, dishwasher, a toilet supply line inside their unit), your neighbor’s HO-6 liability coverage is the first line of defense for damage to your unit. If they carry adequate liability limits, their insurer pays for your losses. If they are underinsured or uninsured, you file against your own HO-6 and let the insurers sort out subrogation.
Negligence matters. If your neighbor knew about a slow leak and ignored it, that is a stronger negligence case than a sudden pipe failure with no warning. Negligence affects which policy pays and whether the association can pursue the responsible party. This is a legal question, not a restoration question, so consult an attorney if the loss is significant.
New Jersey context. The New Jersey Department of Banking and Insurance regulates homeowners and condo policies in the state. NJ law does not override your master deed’s definitions, but it does set minimum standards for how policies must be written and how claims must be handled. If you believe your insurer is acting in bad faith, the DOBI is the right place to file a complaint.
For a broader look at how homeowners policies handle water damage generally, see our post on does homeowners insurance cover water damage.
What does the master deed actually say, and why does it matter so much?
The master deed (sometimes called the declaration of condominium) is the legal document that created your condo association. It defines what is a “unit” and what is a “common element.” Those definitions control which insurance policy responds to a given loss.
For example, one building’s master deed might say the unit begins at the “unfinished interior surface of the perimeter walls.” That means your flooring, paint, and kitchen cabinets are your responsibility, not the association’s. Another building’s deed might define the unit as everything from the “centerline of the perimeter walls inward,” which puts the drywall itself in the common-element category.
Supply lines are another common gray area. A pipe that serves only your unit and runs entirely within your unit boundaries is usually your responsibility. A riser that serves multiple floors is almost always a common element. But the exact boundary varies by building.
Practical steps before your next leak:
- Request a copy of the master deed from your association manager if you do not already have one.
- Read the definitions section carefully, specifically the definitions of “unit,” “common elements,” and “limited common elements.”
- Compare those definitions against your HO-6 policy’s coverage language.
- Ask your insurance agent whether your HO-6 is written to pick up whatever the master policy leaves behind.
Do not assume your agent or the association manager has read both documents side by side. Many gaps in condo coverage exist precisely because nobody checked.
What should you do in the first hour after a water loss in your condo?
Stop the water first, then document everything, then call for help. The order matters because most policies require you to take reasonable steps to prevent further damage, and delays can complicate your claim.
Step 1: Locate the source and stop it if you can. If the water is coming from inside your unit, shut off the supply valve. If it is coming from above, knock on your neighbor’s door and alert building management immediately. The building’s super or property manager can shut off the riser if needed.
Step 2: Document before you touch anything. Take photos and video of every affected surface: ceilings, walls, floors, personal property. Capture the waterline, the source if visible, and any visible damage to building components. This documentation is what your adjuster will use to set the claim value.
Step 3: Notify the right parties. Call your own insurer first to open a claim and get a claim number. Then notify the association in writing (email is fine, it creates a record). If the water came from your neighbor’s unit, notify them as well. Keep records of every conversation.
Step 4: Start mitigation. Most policies require you to mitigate promptly. That means extracting standing water, setting up drying equipment, and preventing mold from taking hold. The IICRC S500 standard sets the industry benchmark for water damage mitigation, and a certified restoration company will follow it. Mold can begin growing within 24 to 48 hours on wet drywall and wood framing, so this step is time-sensitive. Our post on how quickly mold grows after water damage covers that timeline in detail.
Step 5: Get a written scope before any demolition. A reputable restoration company will provide a written scope of work before removing drywall or flooring. That scope becomes part of your claim documentation and protects you if there is a dispute about what was damaged and what was replaced.
The Restoration Group’s water damage restoration team responds 24/7 across the New Jersey and New York metro area and handles the documentation that both your adjuster and the association’s adjuster will need.
What about the condo water damage deductible?
Condo associations often carry a master policy deductible that is much higher than you might expect, sometimes $10,000, $25,000, or more. When a loss falls under the master policy, many associations have the right to pass that deductible back to the unit owner who caused the damage, or sometimes to the owner whose unit was the site of the loss, depending on how the bylaws are written.
Your HO-6 policy can include a “loss assessment” coverage endorsement specifically designed to cover your share of a master policy deductible or any special assessment the association levies after a loss. If your HO-6 does not currently include this endorsement, ask your agent about adding it. It is typically inexpensive and can save you thousands in a shared-building loss.
Also check whether your HO-6 includes “building property” coverage (sometimes called Coverage A on an HO-6). This pays for damage to the interior of your unit when the master policy’s bare-walls coverage leaves a gap. Without it, you could be responsible for replacing flooring, cabinets, and fixtures out of pocket even when the water came from someone else’s unit.
What to do next
If you are dealing with active water damage right now, the priority is stopping the water and starting mitigation. Every hour of delay increases the drying time, the scope of demolition, and the risk of mold. Call The Restoration Group at (855) 650-7422 for 24/7 emergency response.
If you are in the planning stage, pull your master deed, review your HO-6 with your agent, and confirm you have loss assessment coverage. For multi-unit buildings and commercial properties, our commercial restoration team handles association-level losses, unit-by-unit moisture documentation, and the coordination that property managers and adjusters need to close a complex claim.
About The Restoration Group
The Restoration Group is an IICRC Certified Firm (#210213) serving New Jersey and the New York metro area since 2021, operating as an NJ Licensed Home Improvement Contractor. Their crews handle water damage restoration, flood damage restoration, mold remediation, fire and smoke damage restoration, sewage cleanup, storm damage restoration, and commercial restoration across the region. Every loss is documented to the standard adjusters and association managers require, with a written scope provided before work begins.