Safety check
An inspector looks at strapping, the relief valve, the vent and the gas connection. Those are the parts that matter most if something goes wrong in an earthquake or a gas leak.
Homeowner guide
Fountain Valley plumbing permits, explained
In Fountain Valley, plumbing and gas work regulated by the code needs a permit from the Building Division at City Hall. Only a short list of minor repairs is exempt. Here is what needs one, how it works and what the inspector looks at.
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Written and fact-checked by John, editor, MBA in marketing
Updated against City, utility and state sources
Quick answer
The City of Fountain Valley requires a permit to install, alter, repair or replace plumbing and gas systems regulated by the code, including water heaters. The City's Work Exempt from Permits handout exempts only minor items, such as stopping leaks, clearing stoppages and removing and resetting a toilet without replacing pipes, valves or fixtures. Permits go through the Building Division at 10200 Slater Ave, 714-593-4429.
- Building Division
- 714-593-4429
- Counter hours
- Mon to Thu, 7 a.m. to 6 p.m.
- Fridays
- Closed
- Location
- City Hall, 10200 Slater Ave
Where plumbing permits are issued in Fountain Valley
Plumbing and gas permits in Fountain Valley are issued by the City's Building Division at City Hall, 10200 Slater Ave.
The Building Division handles permits, plan check and inspections for work inside the city limits. The permit counter keeps a four-day week, so plan around Fridays.
- Address
- Fountain Valley City Hall, 10200 Slater Avenue, Fountain Valley, CA 92708
- Building Division phone
- 714-593-4429
- Counter hours
- Monday to Thursday, 7:00 a.m. to 6:00 p.m.
- Fridays
- Closed
- Building Official hours
- 7:00 to 11:00 a.m.
- Online
- Online Permit Center for applications, plans and inspection requests
- Fire Prevention
- 714-593-4436
- Public Works
- 714-593-4433
Which plumbing jobs need a permit in Fountain Valley
A permit is needed to install, alter, repair or replace plumbing or gas systems regulated by the code, unless the work is on the City's short exempt list.
The Building Division page says a permit is required before an owner, contractor or agent constructs, enlarges, alters, repairs, moves, demolishes or changes the occupancy of a building, and also to do electrical, gas, mechanical or plumbing work regulated by the code. In plain terms, if the job adds, replaces or changes pipe, valves, fixtures, a water heater or gas piping, assume a permit applies.
The City's Work Exempt from Permits handout lists what does not need one. For plumbing, it exempts stopping leaks in drains, water, soil, waste or vent pipe, and clearing stoppages or repairing leaks in pipes, valves or fixtures. It also exempts removing and reinstalling a toilet. The catch is that these exemptions only hold when the repair does not require replacing or rearranging valves, pipes or fixtures. For gas, it exempts portable heating appliances and replacing a minor part that does not change the equipment's approval or make it unsafe.
There is one more important line in that handout. If a concealed trap, drain or pipe turns out to be defective and has to be replaced with new material, that counts as new work and needs a permit and inspection. So a leak repair that starts out exempt can become permitted work once the wall is open.
| Work | Permit? | Why |
|---|---|---|
| Clearing a clogged drain or main line | Exempt | Clearing stoppages is on the exempt list |
| Stopping a leak at a drain or water pipe, no new pipe | Exempt | Stopping leaks is on the exempt list |
| Pulling and resetting a toilet on its flange | Exempt | Removal and reinstallation of water closets is listed |
| Replacing a concealed pipe, trap or drain | Permit | The handout treats it as new work |
| Water heater replacement, tank or tankless | Permit | Replaces plumbing, gas and venting connections |
| New fixture or relocated fixture | Permit | Installs or rearranges pipe and fixtures |
| Whole-house repipe or slab leak reroute | Permit | Replaces and alters supply piping |
| Sewer lateral replacement | Permit | Replaces drain piping; work in the street may need more approvals |
| New gas line or gas piping repair | Permit | Gas systems are regulated by the code |
| Portable gas heater | Exempt | Listed in the gas exemptions |
The City's plumbing and gas handouts
The Building Division publishes free handouts on its Permits and Handouts page, and several apply directly to plumbing and gas work.
Handouts are available online and at the City Hall permit counter. The ones most homeowners and plumbers use are:
- Water Heater Handout. The City's local guide for water heater installs. Read it before you replace a tank or switch to tankless.
- Gas Piping in Slab. Covers the City's requirements when gas piping runs in or under a concrete slab, a common question in Fountain Valley's slab-on-grade homes.
- Burial Depths For Yard Piping and Electrical Lines. For water, gas and electrical lines run underground across a yard, for example to a backyard kitchen, a pool heater or a detached structure.
- Work Exempt from Permits. The short list of repairs that do not need a permit, described above.
- Bathroom Remodel 2019 and Kitchen Remodel 2019. Useful when plumbing work is part of a larger remodel.
- Owner-Builder Form. Required when a homeowner pulls a permit for work on their own property.
- MEP Fees form (2025). The mechanical, electrical and plumbing fee sheet that goes with the permit application.
The handouts page notes that the informational handouts are under review following adoption of the 2022 codes. Always download the current version from the City's site rather than relying on an old printout.
How to apply: the Online Permit Center
Fountain Valley takes permit applications, plans and inspection requests through its Online Permit Center, and permits can still be handled at the City Hall counter.
The City's electronic plan check and permit system lets you submit applications and plans for review and request inspections. You need a portal account set up with the email address tied to your permit. Plans that need review go in electronically through the Plan Check Center. The City also posts a Request an Inspection form and a Building Inspections page.
On most plumbing jobs, the licensed contractor applies for the permit, schedules the inspection and meets the inspector. If someone asks you to pull an owner-builder permit for work they plan to do, ask why. The Owner-Builder Form exists for homeowners doing their own work, and it puts responsibility for the work on the owner.
Scope the job
The plumber confirms what is being replaced or changed and whether it falls outside the exempt list.
Apply
The contractor applies through the Online Permit Center or at the counter, with the MEP fee sheet and any plans.
Do the work to code
Valves, strapping, venting, gas connections and relief lines go in to the current code and the City's handouts.
Request the inspection
The inspection is requested through the Permit Center. Someone needs to be home to give the inspector access.
Corrections and final
Any corrections are fixed and reinspected. The permit is finaled and becomes part of the property's record.
What the inspector checks on a water heater
On a water heater, the inspection centers on earthquake strapping, the relief valve, garage clearance and pressure control, plus the gas and vent connections.
The City's Water Heater Handout is the local checklist, so ask your plumber to walk through it with you. These items come from state law and the 2025 California Plumbing Code (CPC), and they are the ones that most often decide whether an install passes:
- Earthquake strapping. California Health and Safety Code 19211 says new, replacement and existing residential water heaters must be braced, anchored or strapped to resist falling or moving in an earthquake. CPC 507.2 places the straps within the upper third and lower third of the tank, with at least 4 inches kept above the controls.
- Garage installs. CPC 507.13 requires ignition sources and controls in a residential garage to sit at least 18 inches above the floor, unless the unit is listed as flammable vapor ignition resistant (FVIR).
- Protection from vehicles. CPC 507.13.1 requires appliances in garages to be guarded against damage with a barrier, or placed out of the normal path of vehicles.
- Temperature and pressure relief valve. CPC 608.3 requires a listed, properly sized combination temperature and pressure relief valve on storage water heaters.
- Expansion tank. CPC 608.3 requires a listed, properly sized expansion tank where a check valve, backflow preventer or other normally closed device keeps pressure from flowing back to the water main.
- Gas and venting. The gas connection and vent must be installed to code. Gas questions can also involve SoCalGas, whose leak emergency line is 1-800-427-2200.
Fountain Valley's 1960s and 1970s homes usually have the water heater in the garage. That makes the 18-inch rule and vehicle protection common topics on replacement jobs. A good quote includes any upgrades the old install needs, such as new straps or an expansion tank, so you are not surprised after the inspection. Our water heater replacement and tankless water heater pages go through the install itself.
Gas piping in slabs and underground yard lines
Gas piping in a slab and any new underground yard piping both need a permit, and the City has a handout for each.
Fountain Valley's tract homes are mostly slab-on-grade, so gas and water lines sometimes run in or under concrete. The City's Gas Piping in Slab handout covers that situation, and the Burial Depths For Yard Piping and Electrical Lines handout covers lines run across a yard. Read both before planning a backyard gas line, a pool heater or a detached structure with water service.
Any job that digs needs a call first. The Building Division page reminds residents that California law requires calling before you dig, and that failing to do so can bring fines up to $50,000 plus liability for damage to underground facilities. DigAlert handles those requests.
For the work itself, see our gas line plumber page. If you smell gas, leave the house first and call SoCalGas at 1-800-427-2200 or 911 from outside.
Permits for repipes, slab leaks and sewer laterals
Repipes, slab leak repairs and sewer lateral replacements all replace or reroute piping, so each needs a permit and an inspection.
Repipes and slab leak reroutes
When copper lines under a 1960s slab start leaking, the fix is often a reroute through the walls or attic, or a whole-house repipe. Either one replaces supply piping, so it needs a permit. Ask your plumber what the inspection will cover for your scope before walls are closed up. See whole-house repiping and leak detection and slab leaks.
Sewer lateral work
Replacing or relining a sewer lateral replaces drain piping. In Fountain Valley, the property owner is responsible for the lateral all the way to the public sewer main, which can include the section under the sidewalk and street. Work in the public right of way can involve City Public Works (714-593-4433) as well as the Building Division. Our sewer lateral guide explains who owns what, and sewer line repair covers the options.
Remodels and water-conserving fixtures
California Civil Code 1101.4 requires that, as a condition of final permit approval for alterations or improvements to a single-family home, noncompliant plumbing fixtures be replaced with water-conserving ones. So a remodel permit can bring older toilets and showerheads into the scope. The City's Bathroom Remodel and Kitchen Remodel handouts are the place to start.
Unpermitted plumbing work and selling a home
Unpermitted work can be legalized through the City's after-the-fact permit process, and California sale rules make water heater strapping and fixture compliance part of the paperwork.
It is common to find a water heater or a bathroom in an older Fountain Valley home with no permit on file. That does not always mean the work is bad. It means nobody inspected it.
The City has an After-the-Fact Permit Process for gaining acceptance of "as-built" work that was done without permits. The City's page says responsibility for compliance lies with the property owner, and that the City enforces the code requirements in effect at the time of the permit application. In other words, old work gets judged against today's code, which can mean upgrades.
Two state rules come up at sale:
- Water heater strapping. Health and Safety Code 19211 requires a seller to certify to the buyer in writing that the water heater is braced, anchored or strapped as required. That certification can go in the transfer disclosure statement or the sales contract.
- Water-conserving fixtures. Civil Code 1101.4 required noncompliant fixtures in single-family homes to be replaced by January 1, 2017, and requires the seller to disclose in writing those requirements and whether the home has noncompliant fixtures.
Buyers, inspectors and appraisers may also ask about permits for an added bathroom, a relocated water heater or a repipe. If you are selling, it is easier to sort it out before listing than in the middle of escrow.
Check what is on file
Ask the Building Division at 714-593-4429 how to look up permits for your address.
Look at the safety items
On a water heater: strapping, relief valve line, vent connection, gas shutoff and garage height.
Get a licensed plumber's opinion
A plumber can tell you what would need to change to pass an inspection under today's code.
Use the after-the-fact process
Follow the City's procedure to permit the as-built work, with corrections as needed.
Why a plumbing permit is worth it
A permit gets an independent safety check on gas, venting and pressure, leaves a clean record for the house, and tells you something about the contractor.
Clean records
Permit history follows the house. A finaled permit answers questions from buyers, home inspectors and insurers before they come up.
A contractor test
Licensed plumbers pull permits as routine. An offer to skip the permit to save money is a signal about how the rest of the job will go.
California limits unlicensed work too. Starting January 1, 2025, the CSLB minor work exemption rose from $500 to $1,000, and it does not apply to any job that requires a permit. Because a water heater replacement needs a permit in Fountain Valley, it needs a licensed contractor no matter the price. Our license check guide shows how to verify a C-36 plumbing license, and our plumbing costs guide lists published price ranges.
We pull City permits when the job requires one, give you a written price before work starts, and use independent CSLB-licensed C-36 contractors. Call (657) 669-4766 any time.
Water where it shouldn't be? Call now.
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Questions Fountain Valley homeowners ask
Do I need a permit to replace a water heater in Fountain Valley?
Yes. The City requires a permit to install, alter, repair or replace plumbing and gas systems, and a water heater swap replaces both. The inspector checks strapping, the relief valve, garage height, the vent and the gas connection.
What plumbing work is exempt from a permit in Fountain Valley?
The City's Work Exempt from Permits handout exempts stopping leaks, clearing stoppages, repairing leaks in pipes, valves or fixtures, and removing and resetting a toilet, as long as no valves, pipes or fixtures are replaced or rearranged.
Where is the Fountain Valley Building Division?
It is in City Hall at 10200 Slater Avenue, Fountain Valley, CA 92708. The phone is 714-593-4429. The counter is open Monday to Thursday, 7 a.m. to 6 p.m., and closed Fridays.
Can I apply for a plumbing permit online in Fountain Valley?
Yes. The City's Online Permit Center accepts permit applications and plans and handles inspection requests. You need a portal account using the email address tied to your permit.
Who pulls the plumbing permit, me or the plumber?
Usually the licensed contractor doing the work pulls the permit and meets the inspector. The City's Owner-Builder Form is for homeowners doing their own work, and it makes the owner responsible.
Do I need a permit to fix a leak under my sink?
Usually not, if you are only stopping the leak. The City exempts stopping leaks and repairing leaks in pipes, valves or fixtures. Replacing a concealed pipe, trap or drain counts as new work and needs a permit.
What happens if my house has unpermitted plumbing work?
The City has an after-the-fact permit process to accept as-built work. The owner is responsible, and the City applies the code in effect when you apply, so some upgrades may be needed.
Do I need a permit to replace my sewer line in Fountain Valley?
Yes, replacing a sewer lateral replaces drain piping. The owner is responsible for the lateral to the public main, including under the sidewalk and street, so ask the City about right of way work. See our sewer lateral guide.
Sources
Facts on this page come from these public sources, checked October 31, 2026.
- City of Fountain Valley Building Division
- City of Fountain Valley, Permits and Handouts
- City of Fountain Valley, Work Exempt from Permits
- City of Fountain Valley, After-the-Fact Permit Process
- City of Fountain Valley, A Property Owner's Guide to Private Sewer Laterals
- California Health and Safety Code section 19211
- California Civil Code section 1101.4
- California Plumbing Code 507.2, seismic provisions
- California Plumbing Code 507.13, installation in residential garages
- California Plumbing Code 608.3, expansion tanks and relief valves
- CSLB: AB 2622 implementation, minor work exemption
- SoCalGas, gas leaks