







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Orange County
A full bathroom remodel in Orange County typically runs $9,000 – $28,000, with small bathroom remodels landing between $5,000 and $12,000. The number that matters is the one written on your quote before demo day. We serve homeowners from Irvine to Fullerton to Newport Beach with a simple promise: you get a written price before any work starts, and that number does not change unless you change the scope. Call (424) 541-1701 to schedule your free estimate.
Orange County’s remodeling landscape is different from anywhere else in Southern California. Every city runs its own permit process, every tract has its own architectural committee, and every house built between 1955 and 1995 has its own quirks behind the drywall. Our Bathroom Remodeling team knows what the inspectors in Mission Viejo, Irvine, and Orange look for before they sign off. That local knowledge is the difference between a permit that clears on the first visit and a job that stalls for three weeks.
Key Takeaways
- Bathroom remodels in Orange County cost $9,000 – $28,000; small bathrooms run $5,000 – $12,000.
- Master-planned tracts built after 1980 often require both a city permit and HOA architectural approval, especially for tub-to-shower conversions.
- Older Orange County homes (1950s – 1970s) frequently have original copper supply lines and, in some tracts, aluminum branch wiring that insurers require remediated before final permit sign-off.
- Every Penhallow job gets a written price up front and a written 365-Day Done Right Promise.
- A live person answers our phone 24/7. Call (424) 541-1701.
Styles & brands we work with







Why Penhallow Remodeling Orange County Is Orange County’s Preferred Bathroom Remodeling Company
Trevor Nash leads our Orange County operation, and he has spent enough time in enough attics in this county to know which houses were framed with full-dimension lumber and which ones were framed with whatever the 1960s tract builder had left over. He writes the price down before the first tile comes up and he puts the guarantee in writing on the same page.
Homeowners across Orange County keep calling us because we do what we say. Background-checked, uniformed technicians show up in the window we gave you. The job site gets covered and cleaned every day. And if something fails inside the first year, our 365-Day Done Right Promise means we come back and fix it at no charge. No re-inspection fee, no service call, no argument.
We carry the Kingswell Guarantee, established in 2004: say the price before the work, show up in the window we promised, leave the place cleaner than we found it. That is the whole thing. It works in every city we serve, from the beachside bungalows of Newport Beach to the 1980s tracts of Mission Viejo.
Dispatch and scheduling for Orange County are coordinated from our Los Angeles office, but the crews working on your bathroom live and work here in the county. They know the inspectors by first name and they know which HOA in which tract is going to want a specific louver cover on the new exhaust vent.
Bathroom Renovation in Orange County

A bathroom renovation in Orange County is a complete rework of the space: new waterproofing, new shower pan or tub, new tile, new fixtures, new lighting, often new plumbing rough-in and a ventilation upgrade to meet current code. This is the right scope when the layout works but everything in the room is worn out, dated, or failing. Expect $9,000 – $28,000 depending on the size of the room, the quality of fixtures, and whether you are moving plumbing or keeping the existing rough-in.
Working With Your Existing Layout
Keeping the toilet, sink, and shower in their current positions is the single biggest cost control in any Orange County renovation. Once you move a drain line or a vent stack, you are cutting into joists, patching subfloor, and pulling a revised permit. We will tell you plainly when moving the plumbing is worth it and when it is not.
Builder-Grade Replacements
In the master-planned homes built after 1985, most primary baths have builder-grade cultured marble vanities, fiberglass tub surrounds, and plastic drain assemblies that were never meant to last 30 years. A renovation here usually means straightening walls that were never straight, correcting shower pans that were never leveled, and bringing the waterproofing up to what the original builder skipped.
Small Bathroom Remodel in Orange County
A small bathroom remodel in Orange County runs $5,000 – $12,000 and covers powder rooms, guest baths, and hall baths under about 50 square feet. These jobs move fast because the footprint is small, but they still require the same permits, the same waterproofing standard, and in many tracts, the same HOA review as a full primary bath.
The HOA Trap in Small Baths
Here is the thing most Orange County homeowners learn the hard way: a small hall bath remodel can hit the same architectural committee snag as a primary bath. If you are adding any exhaust ventilation or changing a window, the HOA’s architectural guidelines may require an approved exterior louver cover or a specific finish on visible hardware. We check this before we quote, not after the inspector flags it.
What Gets Replaced First
In older Orange County homes, small bathrooms are usually the last rooms to get attention, which means the original 1960s copper supply lines are often still there. Copper from that era is frequently still sound, but the shutoff valves and angle stops underneath are almost always seized. Budget for new valves whenever we open a wall in a pre-1975 bathroom.
Trusted Brands We Service in Orange County
We install fixtures and materials from manufacturers that back their products the way we back our work: Kohler and Moen faucets and shower valves, Cambria and Caesarstone countertops, KraftMaid cabinetry, and Toto toilets. We also work with Owens Corning insulation, Atlas and Tamko underlayment products, and IKO when a roof penetration or replacement is part of the remodel scope. Because we stock and source these lines locally for Orange County jobs, lead times on most fixtures run days, not weeks. You are not waiting on a special-order valve from a supplier three states away.
See the difference
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After
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After
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AfterCommon Bathroom Remodeling Problems We See in Orange County Homes
- HOA architectural review surprises. In tracts built after 1980 across Mission Viejo, Irvine, and Rancho Santa Margarita, a tub-to-shower conversion often requires the city permit and the HOA’s written approval before rough-in can be inspected. Skip that second step and you are looking at a stop-work order and a re-filed permit.
- Aluminum branch wiring in 1960s builds. Homes in older Anaheim and Garden Grove tracts frequently still have aluminum branch circuits. Many Orange County insurance carriers now require replacement or Copalum crimp remediation before the city will issue a final permit on any bathroom with new lighting, a heated floor, or a ventilation fan on a new circuit.
- Failed shower pan water tests. We see it on jobs where another contractor hurried the rough-in: the pan gets installed, the tile goes up, and nobody ever filled the pan and watched it hold water for 24 hours. The first sign is a water stain on the ceiling below. By then the tile has to come back out.
- Original copper with notched studs. Orange County houses from the 50s through the 80s are full of copper supply lines that are still fine, but previous remodels often notched load-bearing studs to reroute drains. In a 1989 Mission Viejo tract, our crew opened a primary bathroom for a shower replacement and found exactly that: sound copper, notched into a stud. We stopped, documented the rough-in, pulled a revised permit, and rebuilt the stud with a properly sized header before the tile underlayment went back. The inspector signed off the next morning.
Pricing for Bathroom Remodeling in Orange County, CA

Here are the numbers we quote in Orange County, and what drives them up or down.
| Service | Orange County Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Shower Replacement | $3,000 – $8,500 |
What moves the number: whether you keep the existing plumbing rough-in or move it, whether the HOA requires additional waterproofing underlay or a specific vent cover, and whether we have to remediate aluminum wiring before the city will pass final. A standard 5×8 hall bath with a new tub, tile surround, and vanity usually lands around $9,000 – $14,000. A full primary bath with a walk-in shower, frameless glass, heated floor, and custom cabinetry runs toward the top of the range. Every quote includes the written price before we start and the written 365-Day Done Right Promise. Call (424) 541-1701 to schedule your free estimate.
We Also Serve Cities Near Orange County
Our Bathroom Remodeling in Orange County coverage extends to Irvine, Fullerton, Newport Beach, and Orange. If you are in a master-planned tract in any of these cities, the same written-price guarantee, the same 365-day promise, and the same background-checked crews apply. Call (424) 541-1701 and a live person answers.
Serving Orange County, CA - Our Local Coverage Area
We’re based in the Orange County area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Bathroom Remodeling in Orange County

In most Orange County master-planned tracts built after 1980, yes, you need HOA architectural committee approval before a tub-to-shower conversion that changes plumbing, ventilation, or any exterior penetration. The HOA’s review usually runs parallel to the city permit, not instead of it. We pull both, and the City of Mission Viejo Building Division page is a good reference for what the local permit process involves. Call (424) 541-1701 and we will tell you exactly what your tract requires before you spend a dollar.
Insurance carriers in Orange County have flagged aluminum branch wiring, common in 1960s tracts in Anaheim and Garden Grove, as a fire risk, and many now require remediation, either a full rewire or Copalum crimp connectors, before issuing or renewing coverage. The city permit office will often withhold final sign-off on a remodel that adds circuits, heated floors, or new lighting until that remediation is complete. We factor this into the written estimate up front so it is not a surprise at final inspection.
Often you can. Copper from that era is frequently in good condition, especially in Orange County’s dry climate where corrosion is slower than in coastal fog zones. What almost always needs replacing is the hardware attached to that copper: shutoff valves, angle stops, and supply tubes. We inspect every accessible line when we open the wall and we will show you what we found before we recommend replacement.
Santa Ana events push wind against exterior walls at 60+ mph, and a bathroom exhaust fan that vents through a side wall needs a proper backdraft damper and an approved exterior louver cover to prevent wind-driven rain and embers from entering. In wildland-urban interface zones, many Orange County municipalities and HOAs require specific fire-resistant vent covers on new bathroom exhaust penetrations. We install to the stricter local standard, not the generic code minimum.
A small bathroom remodel, $5,000 – $12,000 in Orange County, updates a powder room or hall bath under about 50 square feet, typically keeping the existing footprint and plumbing. A full bathroom renovation, $9,000 – $28,000, is a gut-and-rebuild of the primary or main bath with new waterproofing, new shower construction, new fixtures, and often electrical and ventilation upgrades. In master-planned tracts, both can trigger HOA review, so we treat the paperwork as part of the job, not an add-on. Call (424) 541-1701 for an exact quote. Estimates are free and the written number is the number you pay.
Written by Trevor Nash, Owner at Penhallow Remodeling Orange County, serving Orange County as part of the Kingswell family of companies since 2004.











