Bathroom Remodel Permits in Cerritos: What You Need
If your Cerritos bathroom remodel replaces a vanity, toilet, sink, tub or shower, or touches the plumbing, electrical or wallboard, you need a building permit before work starts. Cosmetic updates like paint, a new mirror or towel bars usually do not. The details below cover what the City asks for, what it costs, who pulls the permit, and what happens at inspection.
One timing note: the City is moving to a new online system. Permitting and approval services are paused this week, and the portal launches on Monday, October 26, 2026. More on that below.
TL;DR
- Most bathroom remodels in Cerritos need a permit, especially when you replace fixtures or change plumbing, electrical or wallboard. Paint, mirrors and towel bars generally do not.
- Get the permit before demolition. Starting without one can force you to open finished walls for inspection.
- If a contractor does the work, they apply for the permit and you sign the application. Ask for the final signed permit when the job closes.
- Single trade permits start at $45 according to the City, plus other fees. Confirm your exact total with the Building & Safety Division.
- The City’s new online permitting portal goes live October 26, 2026.
Table of Contents
- When a Cerritos bathroom remodel needs a permit
- What the permit costs
- The permit process, step by step
- Who pulls the permit: contractor or owner-builder
- What happens if you skip the permit
- Code issues that cause failed inspections
- Our perspective: permits are part of the remodel, not a delay
- Bringing it together: a realistic bathroom timeline
- Remodeling a bathroom with us
- FAQ
- Sources
When a Cerritos bathroom remodel needs a permit
The City of Cerritos says a building permit is required for most bathroom remodel projects, particularly when you remove or replace vanity cabinets, toilets, sinks, tubs or showers, or alter electrical, plumbing or wallboard. Simple maintenance that involves no structural or system changes, such as replacing towel bars, mirrors, paint or floor coverings, does not typically need one.
Here is how that sorts out in practice.
| Project | Permit likely? | Why |
|---|---|---|
| Painting walls and ceiling | No | Cosmetic, no system change |
| New mirror, towel bars, accessories | No | Cosmetic |
| New floor covering, no repair to subfloor | Typically no | Listed by the City as simple maintenance |
| Replacing a toilet, sink or vanity | Yes | Fixture replacement is listed by the City |
| Replacing a tub or shower | Yes | Fixture replacement, plus waterproofing and drain work |
| Retiling a shower with wall repair | Yes, in most cases | Wallboard work is listed by the City |
| Moving or adding outlets, lights or a fan | Yes | Electrical alteration |
| Moving drains or supply lines | Yes | Plumbing alteration |
| Converting a closet or adding a new bathroom | Yes, and plan review | Adds fixtures and square footage |
The retiling question comes up often. If you are only replacing tile over sound surfaces, that is closer to a floor-covering update. If the tile job means tearing out and replacing wallboard or backer in a shower, the City’s wallboard language applies. When in doubt, call before you demolish. The Department of Community Development takes questions at (562) 916-1201, and the Building and Safety Division handles permit status and inspection scheduling at (562) 916-1209.
Adding a fixture counts as a bigger change
Putting a fixture where none existed, like a second sink, a new shower or a bathroom carved out of a closet, adds to the plumbing system. Los Angeles County’s public works FAQ on converting a closet into a bathroom explains that a project like this goes through plan review and inspections. Cerritos follows a similar path.
Second-story windows and the Residential Design Manual
If your remodel changes a window on an upper floor, check the City’s Residential Design Manual. Cerritos has specific expectations for second-story windows, including privacy glass and sill heights or fixed configurations for safety. These details need to appear on the plans you submit.
What the permit costs
The City’s published figures are modest compared with the cost of the remodel itself. Per the City of Cerritos, single building or trade permits start at $45 and linked permits at $102. Additional county fees and a general plan maintenance fee of 17.5% may apply. The fees follow the City’s Master Fee Schedule, so check the current version for your scope.
A bathroom remodel with plumbing and electrical changes often involves more than one trade permit, so your total will be higher than the starting figure. Ask the Building & Safety counter for a written estimate based on your scope, or ask your contractor to include permit fees as a separate line in the quote so you can see them.
The permit process, step by step
- Define the scope. Write down every change: fixtures, layout, electrical, ventilation, windows, wall repair.
- Confirm requirements with the City. Staff are available to help you understand what is required before you start. Calling early prevents the most expensive delays.
- Prepare the application and plans. Permit forms go in with building plans for review. Larger changes need more detailed drawings.
- Plan review. For simple projects, review may take as little as 15 to 30 minutes at the counter, per the county guidance. Bigger scopes take longer.
- Permit issued. Construction can begin only after this.
- Inspections during the work. Inspections happen at set stages, and you schedule them through the Building and Safety Division.
- Final sign-off. The final signed permit is your proof the work met code. Keep it with your house records.
The new online portal
The City has announced that Cerritos Permits and Approvals are going digital. Community Development and Public Works permitting and approval processes are unavailable from October 19 to October 23, 8 a.m. to 5 p.m., while staff prepare for launch. The new portal opens Monday, October 26, 2026, at cerritos.gov/permits, with an instructional video available at launch.
What this means for you: if your remodel is ready to go this week, expect to wait until the portal opens to submit. The counter hours and walk-in routine you may have read about elsewhere (Monday through Friday, 8 a.m. to 4:30 p.m.) may change under the new system, so confirm current hours and submission rules before you drive over.
Who pulls the permit: contractor or owner-builder
If you hire a contractor, the City says the contractor is responsible for applying for the permit, but you must sign the application. The contractor is then legally responsible for certifying that the work complies with state law and city ordinances. Ask for the final signed permit when inspections finish.
An owner-builder permit puts your name on the record as the person responsible for all code compliance. The City also notes that if you do the work yourself, state law may prohibit you from offering the property for sale within 12 months after construction. If you plan to sell soon, that matters.
A simple check when you collect bids: ask each contractor who applies for the permit, which inspections they expect, and whether permit fees are in the price. A bid that says nothing about permits is a warning sign.
What happens if you skip the permit
The City warns that permits must be obtained before any demolition. If work begins without one, the City may require you to uncover finished work, such as walls or plumbing, so it can be inspected. That means paying to open up new tile and drywall, then paying again to close it.
There are other practical costs. Unpermitted work can surface when you sell or refinance, and it can complicate an insurance claim if a hidden supply line fails behind a wall. We are not attorneys or insurers, so for the specifics of your policy or a sale, talk to your agent or insurer directly.
Code issues that cause failed inspections
Cerritos adopts Los Angeles County building codes, and projects must follow the current California code cycle. Industry commentary points to a few repeat trouble spots on bathrooms: electrical (GFCI and tamper-resistant outlets), ventilation (humidity-controlled exhaust fans) and energy efficiency. These are the items most often cited when permits are denied or inspections fail.
Practical takeaways:
- Outlets and lighting. Bathroom receptacles need GFCI protection. Our guide to GFCI locations California homes must protect covers where the 2026 code expects it. New lighting also falls under energy rules, which we explain in our Title 24 lighting inspection guide.
- Exhaust fan. Plan a fan that vents properly and responds to humidity. Do not leave it as an afterthought on the electrical rough-in.
- Water heater changes. If the remodel involves moving or replacing a water heater, that carries its own permit. See California water heater permits.
- Gas. A gas line for a heater or other appliance has its own inspections, covered in our gas line permit guide.
For a general walkthrough of how to prepare for each visit and avoid re-inspection fees, this permit inspection checklist is a helpful reference. The key habit is simple: before each inspection, walk the job with the approved plans in hand and confirm that everything the inspector will check is visible and accessible.
Our perspective: permits are part of the remodel, not a delay
We are a veteran and woman-owned company based in Cerritos, and we handle plumbing, electrical and handyman work in-house. That matters on a bathroom, because one project usually crosses all three trades. The shower valve and drain are plumbing, the fan and GFCI outlets are electrical, and the backer board, tile and drywall finish are handyman work.
When those trades come from three different companies, permits and inspections are where things fall apart. Someone moves a drain after the plumber has left. The electrician is not on site when the inspector arrives. The tile crew closes a wall before anyone signs off. Keeping the work under one licensed team means one scope, one schedule and one person you can call.
Our advice to homeowners is consistent:
- Ask for the permit to be named in your agreement, with fees shown clearly.
- Do not let demolition start until the permit is issued.
- Expect inspections to stop work for a day or two, and plan the schedule around them.
- Keep the final signed permit with your home records.
We believe in upfront pricing and no upsell pressure. A good bathroom quote tells you what is being done, what the permit covers and what happens if the inspector asks for a correction.
— Van Castaneda
Bringing it together: a realistic bathroom timeline
A typical remodel that swaps fixtures and updates tile and lighting follows this order:
- Scope and quote, with permit responsibilities written down.
- Permit application and approval (this is the step the City’s portal change affects right now).
- Demolition and rough-in of plumbing and electrical.
- Rough inspections before walls close.
- Wallboard, waterproofing, tile and finishes.
- Fixtures, fan and lighting installed.
- Final inspection and signed permit.
If you are in Cerritos, Long Beach or nearby, you can see our approach on the bathroom remodeling page, and recent projects in the gallery.
Remodeling a bathroom with us
System Wide Services handles bathroom remodeling alongside the plumbing and electrical work behind it, for homeowners across Cerritos and the surrounding Los Angeles and Orange County areas. If you want a licensed in-house team to coordinate the permit, the trades and the finishes, start with our handyman and remodeling services, or call to talk through your scope. If your project also needs new circuits or a panel upgrade, our electrical team can handle that in the same job.
FAQ
Do I need a permit to retile a shower in Cerritos?
It depends on the scope. Replacing tile over sound surfaces is closer to a floor or finish update, while tearing out and replacing wallboard or changing the plumbing falls under what the City says needs a permit. Call the Department of Community Development at (562) 916-1201 before you start so you get an answer for your exact project.
What happens if I remodel a bathroom without a permit?
The City may require you to uncover finished work, such as walls or plumbing, so it can be inspected. That adds cost and delay. Unpermitted work can also raise questions when you sell the home, so it is better to get the permit first.
Does my contractor handle the permit?
Yes, in most cases. The City says a hired contractor applies for the permit, you sign the application, and the contractor is responsible for certifying the work meets state law and city ordinances. Ask for the final signed permit at the end.
How much is a bathroom permit in Cerritos?
The City lists single building or trade permits starting at $45 and linked permits at $102, plus potential county fees and a 17.5% general plan maintenance fee. Your total depends on which trades your project involves. Ask the City or your contractor for a written fee estimate.
Sources
- Home Improvement Resources, City of Cerritos
- Apply for a Residential Permit/Planning Approval, City of Cerritos
- Cerritos to Launch New Online Permitting System October 26, City of Cerritos
- City of Cerritos
- Residential Design Manual, City of Cerritos
- Closet-to-bathroom conversion FAQ, Los Angeles County Public Works
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System Wide Services handles plumbing, electrical, and handyman work across Long Beach and LA & Orange County.