Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Bathroom Remodeling Across Costa Mesa
Bathroom remodeling in Costa Mesa typically runs between $9,000 and $28,000, and the final number depends heavily on what we find behind the walls of your 1950s-to-1980s home. Most jobs here take two to four weeks once we start, and we coordinate the permit, the crews, and the inspections so you’re not chasing anyone. Costa Mesa’s older tract homes hide things you can’t see until demo day, which is why we write allowances into every contract before we open a wall. Call (424) 541-1701 for a written estimate on your Costa Mesa remodel.
Why Penhallow Remodeling Orange County Is Costa Mesa’s Preferred Bathroom Remodeling Company
Costa Mesa homeowners have seen their share of handshake deals that evaporated once the tile came up. That frustration is the reason we put the price and the 365-Day Done Right Promise in writing before a single fixture is pulled. Every job gets a written price up front, a real arrival window, and a guarantee that says if something fails inside a year, we come back and fix it at no charge. That’s the Kingswell standard, and it’s been the operating rule since 2004.
Trevor Nash leads our Orange County team, and the details he cares about are the ones that matter when your bathroom is torn down to studs: background-checked, uniformed technicians who show up when the schedule says they will, and a live person answering the phone 24/7. We’re part of the Kingswell family of companies, and this location is independently owned and operated. Our crews serve Costa Mesa neighborhoods like the Eastside, Halecrest, and Mesa Verde, and dispatch and scheduling run through our Los Angeles office.
We know what a 1963 ranch in the Eastside looks like when the drywall comes off. We know which inspectors you’ll see and what they’ll flag. That local knowledge keeps your job moving instead of stalling on a surprise code issue. Our Bathroom Remodeling team has handled enough Costa Mesa remodels to know what’s coming.
Styles & brands we work with
Shower Remodel in Costa Mesa
A Shower Remodel in Costa Mesa means more than swapping tile in a 1960s tract home. We open the wall, look at what’s there, and build a waterproof shower that handles the area’s hard water and passes a Costa Mesa building inspection the first time. Expect to spend $3,000 to $8,500 for a Shower Replacement, and up to $12,000 if you’re converting a tub alcove into a larger walk-in shower with custom tile and a frameless glass enclosure.
Walk-In Shower Installations
Older Costa Mesa bathrooms are tight. A Walk-In Shower Installation at $4,500 to $12,000 opens the room without moving a wall. We replace the alcove opening with a curbless entry and line the walls with cement board substrate, which is the moisture-resistant layer behind your tile, before any waterproofing goes on.
Frameless Glass and Tile Work
Frameless glass shower enclosures are a standard request in Costa Mesa, especially after a tile redo. We measure for the exact opening after the tile is set, never before, and we install Kohler and Moen fixtures where our clients want them. The result is a shower that drains properly and closes right.
Tub to Shower Conversion in Costa Mesa
A Tub to Shower Conversion in Costa Mesa runs $3,500 to $10,000, and it’s one of the most common jobs we do in ranch-style and Spanish-influenced homes built between 1950 and 1980. We remove the old tub, re-route the drain for a shower pan, and rebuild the alcove with new waterproofing and code-required ventilation. For a Costa Mesa home on a slab foundation, this usually does not require major jackhammering because the existing tub drain is already in the slab.
What a Conversion Uncovers
The deeper part of the work is what’s behind the tub skirt. In many Costa Mesa houses, that means original drywall with no waterproofing and sometimes water-damaged framing from decades of slow tub leaks. We write a framing allowance into the contract so if the studs are shot, the repair is priced, approved in writing, and done without pausing the job.
Drain and Vent Upgrades
Shower drains need a 2-inch line by code. Many of these older tubs run on 1.5-inch. When we convert to a shower, we replace the trap and route the larger line through the floor or the wall, and we pull the permit so the work is inspected and signed off.
Trusted Brands We Service in Costa Mesa
We install materials from manufacturers whose warranties stand alongside ours. Kohler and Moen fixtures are our defaults because their brass and ceramic-disc cartridges hold up to Costa Mesa’s hard water. For countertops, we offer Silestone and Caesarstone quartz, which each carry their own lifetime surface warranty. We don’t stock parts here in Costa Mesa for the sake of it. What we do stock is the local knowledge of which products hold up in these homes, and a fast turnaround on warranty parts through our supplier network. Your vanity, your tile, your shower valve: every piece should be something we’d put in our own house.
See the difference
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After
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After
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AfterCommon Bathroom Remodeling Problems We See in Costa Mesa Homes
- Cracked orangeburg clay sewer lines. In Costa Mesa’s Eastside, many 1960s homes still run on the original orangeburg that cracks with soil movement. A bathroom remodel often turns into a full lateral sewer replacement before the shower can even drain properly.
- Ungrounded cloth-sheathed wiring. Opening walls on 1950s-to-1970s tract homes frequently reveals aluminum or cloth wiring with no ground. Electrical inspectors in Costa Mesa will flag it, which means a panel or circuit upgrade gets added to a project that was supposed to be just a new shower.
- Slab foundation moisture problems. Older Costa Mesa bathrooms sit on slabs built before modern moisture barriers were standard. Water wicks up through cracks, which is why we evaluate the subfloor and often use self-leveling underlayment and waterproofing before tile goes down.
- Failed waterproofing from previous remodels. We’ve torn out showers built by other crews that were tiled right over green drywall. The grout looked fine for a year, then the baseboards swelled. Proper waterproofing is a membrane system, not a coat of RedGard slapped on drywall.
Pricing for Bathroom Remodeling in Costa Mesa, CA
A full bathroom remodel in Costa Mesa runs $9,000 to $28,000 depending on the size of the room, the condition of the hidden infrastructure, and the materials you pick. Small bathroom remodels land between $5,000 and $12,000. Here’s the line-item breakdown:
| Scope | Costa Mesa Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Shower Replacement | $3,000 – $8,500 |
| Bathroom Vanity Installation | $800 – $3,000 |
What moves the number is what’s behind the walls, not the tile you pick. A shower on a 1963 slab with original wiring and a cracked orangeburg lateral will cost more than the same shower in a newer infill home. We write those allowances into the contract so you see the full picture before we start, and any change order is approved in writing before we touch it. Call (424) 541-1701 to schedule a free estimate.
We Also Serve Cities Near Costa Mesa
Our crews work throughout central Orange County. If you’re in Newport Beach, Tustin, Orange, or Stanton, we bring the same written-price standard and 365-Day Done Right Promise to your remodel. See how we handle Bathroom Remodeling in Costa Mesa and the surrounding area.
Serving Costa Mesa, CA - Our Local Coverage Area
We’re based in the Costa Mesa 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 Costa Mesa
If the wall we open exposes ungrounded cloth or aluminum wiring, a Costa Mesa electrical inspector can require a panel or circuit upgrade before the remodel passes inspection. We write an electrical allowance into the contract so that cost is priced and approved before the surprise hits. Call (424) 541-1701 for an exact quote on your remodel.
We stop finish work, scope the line with a camera, and write a separate change order for the lateral replacement before any rough-in continues. In the Eastside neighborhood, many 1960s homes still run on original orangeburg that cracks with soil movement, so this is a regular part of our Costa Mesa remodels. Call us for a written estimate and we’ll walk you through the allowance structure.
Usually yes, because the tub’s existing drain point is already in the slab and we can adapt it for a 2-inch shower drain without new trenching. We evaluate the subfloor for moisture-wicking cracks and use self-leveling underlayment plus waterproofing before tile. Call (424) 541-1701 and we’ll tell you what your specific layout allows.
We work on a milestone draw schedule tied to completed work, not calendar dates, and any added scope from a surprise framing or waterproofing condition becomes a written change order with its own drawn line item. You approve it before any of that work begins. Call for a free estimate and we’ll show you a sample contract with the allowances built in.
For any remodel that touches plumbing, electrical, or waterproofing, you need a general contractor who can pull the permit and schedule the inspections in the right order. A handyman cannot legally pull a Costa Mesa building permit for multiple trades. Call (424) 541-1701 for a free estimate.
Written by Trevor Nash, Owner at Penhallow Remodeling Orange County, serving Costa Mesa.
