South San Jose Hills, CA · Plumbing help
Plumber in South San Jose Hills, CA: What the County Says About Permits
South San Jose Hills is an unincorporated community, so permits come from Los Angeles County, not a city hall. The water comes from a private utility. This page explains who handles what, and which repairs the County says need a permit.

Replacing a water heater: the County says get a permit
Los Angeles County Public Works says a permit is required for a water heater installation or replacement. Its homeowner page lists replacing a residential water heater as work that does not need a plan check, so the permit is a counter-and-inspection matter, not a drawings review.
Since the community is unincorporated, the County's Building and Safety Division handles it. We did not find a published phone number for the office that serves South San Jose Hills, so use the County's service locator at pw.lacounty.gov to find the nearest office.
- Ask the plumber whether the permit is included, and who pulls it.
- Ask when the inspection will happen.
- Ask what bracing the installer will use, since state law requires it on new and replacement tanks.
Tank failed? Call with your street address and the unit's age if you know it.
Call (833) 571-0120Which repairs are exempt from a County permit?
The County's list of work exempt from a plumbing permit includes repairing leaks in drain, soil, waste or vent pipe, as long as no trap or pipe is replaced. It also lists clearing stoppages and repairing leaks in pipes, valves or fixtures when the repair does not involve replacing or rearranging them.
That makes the line clear for a typical call. Snaking a clog or tightening a leaking valve is exempt. Replacing a drain pipe, or all the supply pipes, is not. The County's plumbing application lists a fee item for replacing water pipe, which is the permit a repipe would use.
| Job | County permit |
|---|---|
| Clearing a clog | Exempt |
| Fixing a leak in a valve or fixture, no replacement | Exempt |
| Replacing a drain pipe or trap | Not exempt |
| Replacing a water heater | Permit, no plan check |
| Replacing supply piping | Permit fee item on the application |
The County's sewer permit rule did not appear on the pages we found, so ask before digging for a sewer repair. Our trenchless sewer repair page lists the other things to confirm.
A sewer backup: whose pipe is it?
Los Angeles County Public Works says the sewer laterals are entirely owned by the private property owner they serve, and that homeowners must maintain the lateral from the house to the main. The County maintains the public sewer mains through its sewer maintenance program.
So the line to the street is yours, and the main in the street is not. A camera inspection will show which one failed. Ask for the footage and the distance to the damage, then use it to decide the repair. The step-by-step order is on our main drain clearing page.
Which water company serves your street?
The County's service directory lists a Suburban Water Systems San Jose Hills district office, described as a privately owned water utility. We could not confirm that every South San Jose Hills address sits inside its service area. Your water bill names your provider.
The provider matters in three places: who to call if the water won't shut off, whose rules apply to a backflow device, and where to get a current hardness figure. Only a plumber can fix what is on your side of the meter.
Which ZIP is your address in?
The County's ZIP code list shows 91744 and 91792 both listing San Jose Hills. It also lists La Puente, Valinda, West Covina and the City of Industry under those ZIPs. That list is dated 2022. A mailing address that says West Covina or La Puente may still be an unincorporated parcel with County permits.
Before you pull a permit, find out whether your parcel is in a city or unincorporated. Give the street address when you call (833) 571-0120, and the plumber will confirm service for your block.
Calls from South San Jose Hills homes
- A stain spreading on a ceiling: finding where the water starts.
- Burst or split pipe: shutting off and documenting.
- A leaking tank: deciding to repair or replace.
- Drain backing up in two fixtures: scouring a clogged line.
South San Jose Hills: a simple plan for the first hour of a leak
When water is running where it should not, the first hour matters more than the repair that follows.
- Shut the main valve, then open a low faucet to drain the lines.
- Move belongings out of the wet area and take photos.
- Call a plumber and describe where the water was coming from.
Do not try to fix a gas, electrical or structural issue yourself. If you smell gas, leave the house and call the gas utility from outside. Everything else can wait for a plumber once the water is off.
South San Jose Hills on the map
Boundaries between cities, unincorporated pockets and water districts sit close together here, so give the full street address when you call.
South San Jose Hills plumbing questions, answered
Does a water heater replacement in South San Jose Hills need a County permit?
Los Angeles County Public Works says a permit is required for a water heater installation or replacement, and its homeowner page lists replacing a residential water heater as work with no plan check. Ask the installer whether the permit is on the quote and when the inspection happens.
Which plumbing repairs are exempt from a County permit?
The County's exempt list includes repairing leaks in drain, soil, waste or vent pipe if no trap or pipe is replaced, and clearing stoppages or repairing leaks in pipes, valves or fixtures that do not involve replacement. Replacing a drain pipe or water pipe is not on that list.
Who owns the sewer pipe between my house and the street?
Los Angeles County Public Works says sewer laterals are entirely owned by the private property owner they serve, and that homeowners must maintain the lateral from the house to the main. The County maintains the public sewer mains. A camera inspection shows which one failed.
Related help in South San Jose Hills
Water Heater Installation
Permit, bracing and sizing in one quote.
Repiping
When the County permit applies.
Sewer Line Repair
The lateral, the main and the camera.
Plumbing trouble in South San Jose Hills
Give the street address and describe what is happening. A plumber will confirm service for your block and explain the next step.
