Based in Laguna Niguel, answering plumbing emergencies across Orange County 24/7.

Emergency: call us(949) 519-2300
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South Orange County

Emergency Plumber for Aliso Viejo, 24 Hours a Day

Half of Aliso Viejo's homes were built in the 1990s, and roughly one home in three is part of a building with five or more units. We are based in Laguna Niguel, the neighboring city to the southeast, and come to any address in ZIP 92656, with a person on the phone whenever you call.

Call (949) 519-2300Get a free estimate
ZIP codes served
1
92656
Calls answered
Day and night
Weekends and holidays too
Contractor license
CSLB #1131308
C-36 Plumbing

Plumbing services for Aliso Viejo addresses

Most Aliso Viejo calls turn out to be one of the jobs listed here. Whichever it is, the plumber travels to you from Laguna Niguel, and you approve a written price before a single fitting is loosened.

Less often, Aliso Viejo also needs: sump pumps, toilets, tankless and commercial.

What we know about Aliso Viejo

Aliso Viejo stands on the last 6,600 acres of the 22,000-acre Moulton Ranch, a piece the Mission Viejo Company bought in 1976. The County approved a master plan for it three years later, and March 1982 brought the first homes to market. Cityhood came much later: 93.3 percent of voters said yes, and on July 1, 2001 Aliso Viejo became the newest of Orange County's 34 cities. The Aliso Viejo Community Association, the first community-wide property owners' association of its kind in California, still maintains most of the slopes, medians and parks.

The Census counts about 20,500 homes here. The median one was built in 1995, half went up during the 1990s, and only 6 percent are older than 1980. Detached houses make up 36 percent, attached single-family homes about a quarter, and buildings of five or more units 34 percent. Owners live in 57 percent of the occupied homes, so more than four in ten are rented. If you rent, keep the owner's or manager's number at hand when you call: the written price has to be approved before any work begins.

Two districts supply Aliso Viejo. Moulton Niguel Water District covers most of the city and El Toro Water District a small part, and neither has a local source: the water is imported and treated either at Metropolitan's Diemer plant in the hills above Yorba Linda or at the Baker plant in Lake Forest. Diemer water averaged 236 mg/L of hardness in 2025 (13.8 grains per gallon) and Baker water 293 mg/L (17.1). At that hardness, minerals settle wherever water is heated or squeezed through a small opening, which in a 1990s home means the water heater, the faucet cartridges and the toilet fill valves.

A plumbing permit in Aliso Viejo is the business of the City's Building & Safety, found at City Hall, 12 Journey, Suite 100, with applications taken through the City's online self-service portal. Plumbing is inspected as its own permit type. A final inspection may also wait on sign-off from Moulton Niguel Water District, the Orange County Fire Authority or the County health department, so on a permitted job we keep track of each of those approvals until the City marks the permit final.

Close to Aliso Viejo are Laguna Woods, Laguna Hills, Laguna Niguel along with Laguna Beach. A call from any of them rings the same line as yours, with a person on it day and night, and the plumber for each sets out from Laguna Niguel. Whatever the address, the cause of the trouble is tracked down first, and the repair waits until you have seen its price on paper.

Aliso Viejo ZIP codes on our map

  • 92656

Why Aliso Viejo calls a plumber

  • 01Leaking or cold tank water heaters, swapped out under an Aliso Viejo plumbing permit: strapped in two places for earthquakes, relief valve drained to a safe spot.
  • 02Scale in tankless heat exchangers, faucet cartridges and fill valves, the residue of imported water whose 2025 averages ran from 13.8 to 17.1 grains per gallon.
  • 03Backups in buildings of five or more units, followed down the line until it is clear whose pipe is blocked.
  • 04Leaks in rented condos and apartments at night, with the written price sent to the owner or manager to approve.

Census snapshot

When Aliso Viejo was built, and what was built

  • 1995Median year of construction
  • 6%Homes built before 1980
  • 36%Detached single-family homes
  • 20,507Housing units in all

Just 6 percent of Aliso Viejo homes were standing before 1980, against 57 percent for Orange County as a whole. Housing from these later decades was mostly piped in copper or PEX with plastic drains, and the pipe itself is rarely the first thing to give out. What wears is the equipment that hard south county water runs through every day: tank and tankless water heaters, pressure regulators, recirculation pumps, angle stops and toilet fill valves.

Detached houses are the smaller part of Aliso Viejo: 36 percent of homes, where Orange County as a whole has 49 percent. Condominiums, townhomes, cooperatives and apartments make up the rest, and in those buildings neighbors often share a drain stack or a lateral. A backup there may start in pipe the association owns, so we trace it before any estimate is written and the right party receives it.

Source for these figures: US Census Bureau, ACS 2020-2024 5-year estimates.

What happens next

From first ring to clean floor

  1. 1

    Call or send the form

    Phone us or fill in the request. Whatever the hour, the voice on the line belongs to a person.

  2. 2

    Set a time

    We book the visit around your day. Water that is still coming through jumps the line as an emergency.

  3. 3

    Find the cause

    The plumber traces the fault and writes out the price. Nothing begins until you say yes.

  4. 4

    Test and tidy

    You see the repair tested, then the work area is cleared and wiped before we go.

Common questions

What Aliso Viejo homeowners ask us

Which water district serves my Aliso Viejo home?
Most of the city is on Moulton Niguel Water District and a small part is on El Toro Water District; your water bill names yours. It matters when the sewer backs up. In El Toro's area the owner keeps the whole building lateral, inside and outside. Under Moulton Niguel's standards the lateral is generally the customer's as well, as far as the wye where it joins the main.
I rent my place. Can I call you in the middle of the night?
Yes. Renters get 24-hour emergency response like everyone else in Aliso Viejo, and the call is taken by a person whatever the hour. Close the valve at the fixture or the unit if you can, then find the owner's or manager's number: the price is put in writing and approved before work starts, and in a rental that approval is usually theirs.
Does the Aliso Viejo Community Association look after my pipes?
AVCA's job, as the City describes it, is most of the city's slopes, medians and parks. Pipes inside a house or unit are usually the owner's, or a condo or townhome association's where its own rules say so. If you cannot tell whose pipe is leaking, we find the source first and tell you where it is.

County coverage

Aliso Viejo within the county we serve

Aliso Viejo is one outline on this map of Orange County, which counts 34 cities plus 5 unincorporated communities. All of them are served from Laguna Niguel, the single point marked on it. Seven places are shaded darker: those are the ones with a page on this site.

Bypass the map and read the places as text
Orange County, drawn city by city, with the places we coverThe county is cut into its cities and unincorporated communities, one outline each. A dark outline is a link to that place's page. A pale one has no page, yet we go there all the same, and the list beneath the map names all of them.Dispatched from Laguna NiguelAliso Viejo

Any shape you hover on, touch or land on with the Tab key gets named in this line.

Links to its own pageWhere we are basedWe serve it, no pageThe place you are reading about

All mapped places, as a plain list

Cities

Unincorporated communities

  • Coto de Caza
  • Ladera Ranch
  • North Tustin
  • Rancho Mission Viejo
  • Rossmoor

Nearby places with pages of their own

The full Orange County list: 34 cities, 5 communities

Plumbing emergency

Ring us at any hour.

If water is spreading, close the house shutoff or the valve at the meter first, then call. We go through the next steps with you on the phone while a plumber makes for your address from Laguna Niguel.

Answered 24/7

(949) 519-2300
Request serviceAll plumbing services

CSLB license #1131308 · $25,000 bond · C-36 Plumbing