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Fast, Reliable Bathroom Remodeling Across Bonita
Bathroom remodeling in Bonita typically runs $9,000 – $28,000, and the work usually takes two to four weeks once permits are issued. That price covers everything from a tub-to-shower conversion to a full gut with new vanities, tile, and plumbing. We’re Penhallow Remodeling San Diego, and we serve homeowners across Bonita from the Bonita Verde area down to the Sweetwater Road corridor. When you call (619) 604-9624, a real person answers and schedules your free written estimate, no callback window, no voicemail tag.
We know Bonita’s homes well. Most were built between 1960 and 1985, and they carry specific quirks that newer coastal construction doesn’t. Our Bathroom Remodeling team has opened more than a few walls here and found exactly what we expected: original galvanized pipe, tired framing, and waterproofing that gave up years ago. The good news is that every one of those discoveries gets priced and approved in writing before we touch it. That’s the Kingswell Way, and it’s been our operating standard since 2004.
Why Penhallow Remodeling San Diego Is Bonita’s Preferred Bathroom Remodeling Company

Homeowners in Bonita keep calling us for one reason: we put the price and the guarantee in writing before the first tile comes up. Trevor Nash, who leads our team, is old-fashioned about that. You get a written number you can hold us to, a defined arrival window, and a 365-Day Done Right Promise. If something fails inside that year, we come back and fix it at no charge. No re-inspection fee. No argument.
Our technicians arrive in uniform and they’re background-checked. You know exactly who’s walking into your home. When we say we’ll be there between 8 and 10, that’s when the truck pulls up. For Bonita residents, that matters because so many local homeowners have already been burned by a contractor who never showed or a price that ballooned after demo day. We serve Bonita with the same standard on every job, from a small vanity swap to a full master bath gut.
We also stock common parts for Bonita’s older homes locally, which shortens turnaround when a remodel uncovers something like a corroded shutoff valve or an odd-sized rough-in. That local inventory, plus a live person on the phone 24/7, keeps projects moving.
Styles & brands we work with







Tub to Shower Conversion in Bonita
A tub to shower conversion in Bonita typically runs $3,500 – $10,000, and it’s the single most common bathroom project we do in this area. Older Bonita ranches and Mediterranean-style homes were built with tub-shower combos that made sense for families in the 1970s. Now, homeowners want a walk-in shower with a low threshold, better waterproofing, and a frameless glass panel that doesn’t fight with a shower curtain rod. We handle the full conversion, from demo and drain relocation to new tile, glass, and fixtures.
The conversion opens up the room visually and removes a tripping hazard. For many Bonita homeowners, that’s the deciding factor. A tub with high sides gets harder to clear every year, and a curbless shower is an investment in staying in the home.
What the rough-in phase usually uncovers
When we open a Bonita bathroom wall for a tub-to-shower conversion, we’re looking at whatever the 1970s left us. In this housing stock, that’s often galvanized steel supply lines that have been quietly corroding for decades. We inspect before we cut, and if the threads crumble when we disconnect the old valve, we stop and write a change order. You approve it in writing before we do another hour of work. No surprises on the invoice.
Waterproofing the right way
We set the pan with a bonded waterproofing membrane, not just cement board and hope. That’s the layer that keeps water out of the framing. For Bonita’s seal-and-stucco homes, this matters because a slow drip behind the wall can rot a floor joist before you ever see a stain. We also address the drain, because setting a shower drain on an older slab means confirming the pitch before the new base goes in.
One Day Bath Remodel in Bonita

A one day bath remodel in Bonita typically runs $9,000 – $28,000 for a full replacement, and it works best when the existing footprint stays the same. We’re not tearing out and rebuilding your bathroom in eight hours, nobody is. What we do is swap the tub, surround, valve, and fixtures in a single day using a system that fits over sound framing. For a Bonita homeowner with one bathroom and no guest bath, that’s the difference between a remodel and a hotel stay.
This approach is particularly useful in Bonita’s older homes where you want a fresh, clean bathroom without opening walls and triggering a larger permit scope. We’ll tell you straight: if the subfloor is rotted or the drain is misaligned, a one day bath isn’t the right call. We’ll say so before you give us a dollar.
What gets replaced in a day
We replace the tub or shower base, the wall surround, the valve, the drain trim, and the showerhead. The work uses a heavy-gauge acrylic or composite wall system that bonds directly over the old substrate once it’s cleaned and primed. No grout, no tile setting time, no waiting for mortar to cure.
When a full remodel makes more sense
If you want new tile, a curbless shower pan, or a different footprint, a one day bath is the wrong tool. We’ll price the full remodel honestly, usually in the $9,000 – $28,000 range for Bonita’s housing stock, and we’ll walk you through exactly what the permit will require. Sometimes the best answer is not the fastest one, and we’d rather tell you that up front.
Trusted Brands We Service in Bonita
We stock and install fixtures and surfaces from recognized trade brands, because the products behind our guarantee need to be as solid as the promise. For Bonita bathrooms, that often means Kohler and Moen valves and fixtures, Cambria or Silestone quartz for a vanity top, and Wellborn or KraftMaid cabinetry when you’re replacing a tired 1980s vanity. If you have an existing PGT window in the bathroom, we can work around it during a remodel and we’ll match the trim cleanly. When a brand carries its own warranty, like Cambria’s lifetime guarantee, that’s a second layer on top of our 365-Day Done Right Promise, and we’ll put both in writing before we start.
Common Bathroom Remodeling Problems We See in Bonita Homes
- Failed waterproofing behind original 1960s tile. The tile looked fine from the front, but the mortar bed underneath was shot and the subfloor had been soaking for years. We only find it once the pan comes out, and that’s when the real scope of work gets priced and approved.
- Galvanized supply lines that crumble at the threads. This is the big one for Bonita, where most homes still carry their original steel pipe. A simple vanity swap turns into a repipe when the shutoff valve won’t hold, and we write that change order before any more work happens.
- Slab foundation movement from expansive clay soil. Bonita sits on clay that swells with winter rain and shrinks in summer heat. When a bathroom sits over a cracked section of slab, the toilet flange and shower drain lose their alignment, and a new fixture alone won’t fix the slow leak.
- Load-bearing walls cut without an engineer’s stamp. We’ve taken over projects where a previous contractor opened a wall for a wider shower and the inspector issued a stop-work order. We bring the engineer in, revise the scope of work, and get it permitted properly.
See the difference
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AfterPricing for Bathroom Remodeling in Bonita, CA
A bathroom remodel in Bonita runs $9,000 – $28,000. The spread comes down to square footage, fixture grade, whether you’re moving plumbing, and what we find inside the walls. Here’s the line-item look at what Bonita homeowners typically pay:
| Project | Bonita 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 |
Every estimate is written, not verbal. We walk the bathroom with you, open the access panel if there is one, and give you a number that won’t change unless we both sign a change order. Call (619) 604-9624 for a free written estimate.
We Also Serve Cities Near Bonita
Our crews work throughout the South Bay and East County. If you’re in Chula Vista, La Mesa, Imperial Beach, or San Diego, we bring the same written pricing, the same guarantee, and the same crew standard. The phone number is the same too: (619) 604-9624.
Serving Bonita, CA - Our Local Coverage Area
We’re based in the Bonita 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 Bonita
Budget for replacing galvanized supply lines. Bonita homes from the 1960s and 1970s often still have their original steel pipe, which corrodes from the inside and fails at the threaded joints once we break into the wall. That repipe gets priced as a written change order before any further demo. Call (619) 604-9624 and we’ll inspect your exposed plumbing during the free estimate.
Not always, but we flag it when we see evidence of slab movement. Bonita’s expansive clay soil shifts with seasonal moisture, and when a bathroom drain or toilet flange sits over a cracked slab section, we recommend a structural engineer’s review before setting new fixtures. It’s cheaper to check than to tile over a misaligned drain. We’ll tell you at the estimate whether it’s warranted.
We use a bonded sheet membrane across the shower pan and up the walls, with the seams taped and sealed, not a fiberglass pan that relies on caulk. On Bonita homes with original framing, we inspect the wood for rot before the membrane goes in. The goal is a shower that never leaks behind the tile, and that’s covered under our 365-Day Done Right Promise.
We stop work in that area and bring in a licensed abatement contractor before continuing. Older Bonita homes sometimes have vinyl flooring with asbestos backing or lead paint on the walls, and neither is something we disturb. The abatement cost is written into the change order, and we hold the schedule while the specialist does their work. You’re never asked to handle it yourself.
Usually, yes, as long as the framing is sound and the original tub or shower lines up with the new unit’s dimensions. We check the studs, subfloor, and drain alignment before we confirm a one day bath is viable. If there’s rot or slab movement, we’ll recommend a full remodel instead and give you a written price for that path. The estimate is free either way.
Call Penhallow Remodeling San Diego in Bonita

If you’re ready to price your bathroom remodel, call (619) 604-9624. We’ll walk you through what the project involves, what the permit will trigger, and what it’ll cost in writing. No verbal ballparks, no pressure, and no number that changes at the door. That’s how we’ve operated since 2004, and it’s the only way Trevor runs a job in Bonita.
Written by Trevor Nash, Owner at Penhallow Remodeling San Diego, serving Bonita homeowners with written pricing and a written guarantee on every bathroom remodel.











