Chino Hills, CA · Plumbing help
Plumber in Chino Hills, CA: Water Pressure, Permits and Who Owns What
Chino Hills is in San Bernardino County, and its city runs both the water and the sewer service. That changes who you call, which permit office applies and what the city expects of your pipes. This page covers those differences before the repair itself.

High water pressure: is the regulator yours to fix?
The City of Chino Hills requires a pressure regulator on new residential plumbing wherever the pressure in the city main can exceed 80 pounds per square inch. The city also says regulators are installed and maintained by the property owner.
So when a faucet hammers, a toilet keeps refilling or a hose bib sprays, the regulator is a first suspect, and it is on your side of the meter. Ask the plumber to put a gauge on a hose bib and report the number. If the pressure is above 80, ask whether a regulator exists, whether it is working and what replacing it involves.
- Note the symptom: banging pipes, fast-refilling tanks, sprays at fixtures.
- Ask for a gauge reading at a hose bib, before and after any adjustment.
- Ask where the regulator is and when it was last replaced.

Pipes banging or fixtures spraying? Call and give the street address.
Call (833) 571-0120Water, sewer and billing all go through the city
The City of Chino Hills says it provides water and sewer service to its households. That is different from most of the neighboring towns, where a district or a private utility supplies the water. For questions about water service or billing, the city's Utility Billing Office is at (909) 364-2660. City Hall is open Monday to Thursday, 7:30 a.m. to 5:30 p.m.
The Inland Empire Utilities Agency treats the wastewater, according to the city's rates page. That is useful to know, but it does not change who owns the pipe under your yard.
The city's pages we found do not say who owns the sewer lateral in Chino Hills. Ask the city before assuming. For a backup, a camera inspection still shows where the problem is, and it gives the city a clear picture if the damage is in the main. The general order is on our sewer repair decision page.
Which plumbing jobs does Chino Hills require a permit for?
The city's Building and Safety Division can be reached at (909) 364-2780. Its permit rules say a permit is required to install, alter, repair, remove, convert or replace a plumbing system, and the exempt-work list does not name plumbing. The city's fee schedule lists fees for each water heater and for installing or repairing a sewer line.
The city page that explains when a permit is required did not load for us, so treat the details as something to confirm. The Community Development Department can be reached at (909) 364-2740.
| Job | What the city's documents show |
|---|---|
| Water heater | Fee schedule lists a water heater permit item |
| Sewer line repair | Fee schedule lists an install or repair item |
| Other plumbing alterations | Permit required to alter or replace a plumbing system |
The next-day inspection cutoff on the Building and Safety page is 2 p.m. for requests, which matters if you are trying to get an install signed off quickly.
Hillside lots and slope leaks
Much of Chino Hills sits on slopes, and a leaking line on a slope is a different problem from one on flat ground. We did not find a city page setting rules for slope irrigation or seepage in Chino Hills. If you see soil movement, cracking or a wet slope face, call the city before you dig.
A leak that you cannot see can still be found without digging. meter test steps comes first, and slab leak signs apply only if the house sits on a concrete slab.
Hard water in Chino Hills: ask for the current report
Scale on fixtures is a practical question, and the right softener size depends on a current hardness figure. Ask the Utility Billing Office for the city's latest water quality report before you size a softener, and read our hard water treatment page for how to use the number.
- Do not buy a softener until you have the city's current hardness figure.
- Ask whether your installer sizes from the report or from guesses.
- Ask whether a pressure regulator and a softener need to be placed together.
Common calls from Chino Hills homes
- A tank that leaks or has no hot water: replacing a tank water heater covers sizing, bracing and the permit question.
- Water coming through a wall: burst pipe steps start with the shutoff.
- Clogs in more than one drain: main line clearing explains the camera step.
- Pipes that keep failing: whole-house pipe replacement.
Chino 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.
Chino Hills plumbing questions, answered plainly
Who maintains the pressure regulator on my Chino Hills home?
The City of Chino Hills says regulators are installed and maintained by the property owner, and that new residential plumbing needs one where main pressure can exceed 80 pounds per square inch. Ask the plumber for a gauge reading at a hose bib and for the regulator's location.
Does plumbing work in Chino Hills need a permit?
The city's permit rules say a permit is required to install, alter, repair, remove, convert or replace a plumbing system, and its exempt list names no plumbing work. Its fee schedule lists water heater and sewer line items. Building and Safety is at (909) 364-2780.
Who do I call about water service in Chino Hills?
The City of Chino Hills says it provides water and sewer service, and its Utility Billing Office is at (909) 364-2660. City Hall is open Monday to Thursday, 7:30 a.m. to 5:30 p.m. For a repair on your side of the meter, call a plumber.
Where to go from here in Chino Hills
Leak Detection
Meter test and tracing for hidden leaks.
Water Softeners
Getting a hardness number before sizing.
Repiping
When repairs keep repeating.
Plumbing trouble in Chino Hills
Give the street address and describe the symptom. A plumber will confirm service for your block and explain the next step.
