What Should You Do First When Water Comes From the Unit Above?
- Protect what you can. Move valuables out of the drip and put a bucket or towels under it.
- Get the water stopped upstairs. Knock, call or text the occupant above and ask them to stop running water until the source is found. Closing the shut-off to a wet-looking toilet or sink helps too.
- Notify in writing, not just by knocking. Send the HOA or property manager an email or portal message with the time you first saw water. Renters should copy their landlord too.
- Photograph everything with dates. Shoot the ceiling, walls and damaged items, plus a short video of the drip.
- Stay clear of wet fixtures. If water is near a light fixture or ceiling fan, keep people away and, as general safety practice, switch that circuit off at the breaker panel.
A timestamped message matters: two weeks later, nobody remembers whether the knock happened at 7 a.m. or noon.
Who Is Responsible for Finding the Leak: You, the Owner Above or the HOA?
It depends on your association's governing documents (often called the CC&Rs or the declaration) and on where the water turns out to start. A leak inside one owner's unit and a leak in a shared pipe can land with different parties.
The Nevada statute for common-interest communities, NRS 116.3107, sets the default: unless the declaration says otherwise, the association maintains, repairs and replaces the common elements, and each owner does the same for their own unit. The same section says owners must allow access through their unit when it is reasonably necessary for that work.
That is the starting point, not the answer for your building. This is not legal advice. Read your association's documents, ask your manager which rule applies, and ask your insurer what your policy covers. For managed buildings with several units involved, our page on Las Vegas property visits explains how access and shut-downs get planned.
- 1Meter box. Lift the lid to see the water meter.
- 2Flow-indicator triangle (red or white) on the meter face. With all water off inside and outside the home, a triangle that is still moving means there may be a leak.
- 3Meter dial and sweep hand, which record the water that passes through the meter.
- 4Service line from the meter to the house. If the triangle still moves with the house shut-off valve closed, the leak is likely underground on this line.
- 5House shut-off valve. Close it and check the triangle again: if it stops, the leak is elsewhere on the property.
Where Does Water From an Upstairs Condo Usually Come From?
The clue below often points to the source above, and the last column says which ones a leak detection visit can trace.
| Source above | Typical clue in your unit | Usually investigated by (check your governing documents) | Traced by a leak detection visit? |
|---|---|---|---|
| Supply line or shut-off valve | Constant drip, day and night | Unit owner or HOA, depending on location | Yes |
| Toilet supply, wax ring, tub or shower seal | Drips after the unit above uses that fixture | Usually the unit owner | Yes |
| Washer, dishwasher, ice maker or water heater | Sudden water, or water after an appliance cycle | Usually the unit owner | Yes |
| Shared riser or common pipe | More than one unit affected | Often the HOA | Yes |
| Roof or exterior wall | Shows up after rain | Often the HOA | No, we do not do roof leak detection |
| AC condensate line | Appears in cooling season | Unit owner or HOA | No, we do not do HVAC work |
A Las Vegas, NV ceiling stain in August that only grows while the air conditioning runs is a condensate question for an HVAC contractor, and a stain that appears after a storm is a roofing question.
Why the Stain on Your Ceiling Is Often Not Under the Leak
Water rarely falls straight down. It runs along joists, conduit, pipe sleeves and the top of drywall until it finds a seam, a fixture hole or a low point, and only then does it show. In stacked buildings it can travel farther before anyone sees it.
That is why we would not cut open your ceiling to look. A hole made on a guess is often in the wrong place and adds a repair. It can also muddy who caused what. Find the source first; open once, in the right spot.
How the Source Gets Located Without Opening Your Ceiling
Locating a unit-above leak is mostly elimination, and the owner below can help most.
- Map the moisture. A moisture meter reading taken outward from the stain shows how far the wet area runs and which direction it came from.
- Log the timing. A drain leak upstairs only shows when someone above runs that fixture, while a supply leak drips around the clock. Note whether it gets worse in the morning, right after a shower upstairs, or never stops. Hand that log to whoever traces it.
- Check the unit above, with access arranged. Through the owner, or the HOA if the owner is unreachable, the fixtures and visible lines above the wet area get inspected.
- Confirm without demolition. Fixture isolation (running one fixture at a time), moisture readings and thermal imaging narrow the source to a specific line or seal.
- Mark and explain it. The located source is marked and explained to everyone involved, so the owner above, the HOA and any insurer work from the same fact.
If your building sits in the Strip corridor, our leak detection paradise nv page covers that area in more detail.
When the drip timing points somewhere specific, talk to a leak detection specialist about tracing it.
What to Document for the HOA, the Owner Above and Your Insurer
The Insurance Information Institute suggests photographing or videotaping damage, taking reasonable steps to protect the property and saving receipts, keeping damaged items until the adjuster has visited, and keeping copies of your correspondence with the insurer. For a condo leak, keep a short file:
- Dated photos and video of ceiling, walls and items
- Who you notified, by name, and when
- Your drip timing log
- Receipts for towels, fans or moving costs
- The located source, and who found it
- Repair invoices once work is done
If a slab line under your own unit is involved rather than the unit above, the Leak Detection Las Vegas guide to homeowners insurance and slab leaks covers that claim conversation.
Condo Leaks in Paradise and the Strip Corridor
A 2026 Las Vegas ZIP code guide describes ZIPs 89109 and 89169 in Paradise, NV, the Strip corridor, as areas where "high-rise condominiums dominate." Paradise also has the oldest housing median among the areas we serve: the Census Bureau's 2019-2023 American Community Survey puts its median year built at 1987.
Stacked units change the problem. One failed valve can reach more than one home below, and each owner may have a different insurer. In larger buildings the manager or HOA usually controls access to units, risers and shut-offs, so that office is often the fastest route to the unit above.
When It Is an Emergency
Treat it as urgent when water is running near light fixtures or outlets, when the ceiling sags or bulges, or when water keeps coming and the unit above is empty and nobody can shut it off. Keep people out from under a sagging ceiling. In those cases, emergency leak detection las vegas is the route, alongside your HOA's after-hours contact.
Get the Source Located
Leak Detection Las Vegas locates water leaks in condos, apartments and homes across the Las Vegas Valley, including Paradise, NV, without opening ceilings to guess. We do not handle HOA disputes, drying or restoration; we find where the water starts. Talk to a leak detection specialist.
