Newer than 1990 does not mean leak-proof
Aliso Viejo became a city on July 1, 2001. The city's housing element says more than two-thirds of its housing was built after 1990. Newer buildings mean fewer decades-old supply lines behind your walls, but appliances, water heaters and washer hoses fail at any age.
The same document says less than 28 percent of units may need maintenance or rehabilitation. So when water shows up in a newer unit, the cause is usually one failed part, such as a dishwasher line, an ice-maker tube or a water heater. A moisture scan finds that part's path and shows how far the water spread.
Condos, townhomes and detached homes leak in different ways
The housing element breaks the town into roughly 39 percent multifamily, 35 percent detached and 26 percent attached or townhouse. Each type sends water somewhere different, and each one changes who pays for what.
Apartments and condos
Water usually comes from the unit above or beside you. Ask the owner or manager to close the supply, then ask your association which pipes and walls it maintains.
Townhomes and attached homes
Shared walls and stacked floors let water drift into a neighbor's space. Tell your association early so both sides get dried.
Detached homes
A leak stays on your lot, so the scope and the rebuild are yours to manage. Check your policy before you approve any repair.
Read your CC&Rs before the walls come down
Aliso Viejo's housing element refers to homeowner associations, and attached homes usually sit under one. Your CC&Rs and the association's master policy decide which pipes, drywall and flooring are the association's and which are yours.
Ask your association before anyone cuts into a shared wall. Photograph the damage and keep every receipt.
What our dispatch covers in Aliso Viejo
Night and weekend dispatch
The emergency line answers at night and on weekends for Aliso Viejo, with same-day response when available.
Extraction and drying
Pumps and extraction units remove standing water. Air movers and LGR dehumidifiers dry walls, subfloors and carpet pad.
Moisture mapping
Moisture meters and thermal imaging trace water through shared walls so you know where wet material hides.
Scope and price first
The scope and price are explained before work starts, so you and your association can see what is being done and why.
Reputable crews follow the published ANSI/IICRC S500 standard for water damage restoration, and the S520 standard for mold. You can ask any company which standard guides its drying and containment decisions.
Leak in your Aliso Viejo unit right now?
Call (949) 670-0939 and tell the dispatcher whether the water came from above, beside or inside your home.
Water is moving through your Aliso Viejo ceiling or walls
If water is still spreading in Aliso Viejo
Move fast, but keep yourself safe. These five steps fit a condo, a townhome or a detached house, and none of them needs a tool you do not already own.
Close the nearest supply
Turn the angle stop under the sink, toilet or washer. If you cannot find the source, close the main shut-off for your unit or house.
Check the panel before the lights
Cut power to wet rooms only if the panel is dry and easy to reach. If water touches outlets or the panel, stay out and call 911 or your utility.
Clear the floor below the leak
Lift laptops, paper files and rugs off wet floors. Pull furniture away from walls so air can reach the baseboards.
Keep everyone out of sewage
Water from a toilet or floor drain is contaminated. Keep children and pets out of it and do not wade through it.
Call the 24/7 line, then your association
Call (949) 670-0939 first so drying can be scheduled, then tell your association or property manager the same day.
Which service fits your Aliso Viejo home
Standing water from an overflowed tub or a failed hose calls for emergency water removal. Once the surface water is out, structural drying and water mitigation removes moisture from walls and subfloors, which matters most in attached homes where wet drywall touches a neighbor's.
After drying, water damage repair rebuilds drywall, paint and flooring. EPA guidance says to dry water-damaged areas within 24 to 48 hours to prevent mold. If a damp area has already turned musty, ask about mold remediation before painting over it.
Nearby, see our pages for Laguna Hills and Mission Viejo.
Aliso Viejo facts that shape your repair
The 2020 Census counted 52,176 residents in Aliso Viejo, and the Census Bureau's 2020 to 2024 survey puts owner-occupied homes at 56.7 percent. That is a large renter share. If you rent, report the leak in writing to your landlord and keep copies.
Water and sewer service here is split between Moulton Niguel Water District and El Toro Water District. Parcel-level boundaries were not verified, so confirm your district by address before you call about a main line. ZIP 92656 is the town's own ZIP, though some addresses carry a Laguna Hills mailing label.
Aliso Viejo service area map
Dispatch starts in Laguna Niguel, which borders Aliso Viejo to the south.
Aliso Viejo water damage questions
Aliso Viejo has one ZIP of its own, 92656, and that is the ZIP this page covers. Some Aliso Viejo addresses carry a Laguna Hills mailing label, so go by your street address and call the line if you are unsure.
Yes. The 24/7 line takes calls at night and on weekends, and same-day response is offered when available. We do not promise an arrival time.
Ask the upstairs neighbor to close their supply, then put a bucket under the drip and move valuables. Call the restoration line to start drying, and notify your association in writing the same day. Photograph the damage so the claim records match.
Sudden and accidental water damage is often covered, while gradual leaks and neglect often are not. The association's policy and your own policy may split the building and your contents, so ask both. California regulations require insurers to acknowledge a claim within 15 calendar days and to accept or deny within 40 calendar days after proof of claim. Ask your insurer how this applies to your claim.
Moulton Niguel Water District and El Toro Water District both serve parts of the town. Parcel boundaries are not known to us, so check your water bill or call the district with your address.
No. Per EPA guidance, drying inside 24 to 48 hours is the window that keeps mold from starting, whatever the building's age.