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Quikrete Bathroom Remodeling: The Los Angeles Owner’s Guide
Quikrete bathroom remodeling in Los Angeles typically runs $10,620 to $33,040 for a full remodel where Quikrete products, like their fast-setting underlayment or water-resistant cement board, are used as substrate. We stock Quikrete-compatible materials for shower pans, tub surrounds, and wet-area backer board, and we can usually start within a week of the estimate. Most Los Angeles homeowners find out their Quikrete substrate has failed when they see cracked grout lines or a soft spot in the shower floor that flexes underfoot.
What’s happening, more often than not, is moisture getting behind the tile. Quikrete’s cement board does its job when installed with the right gap spacing and correctly taped seams. When the original installer skipped the alkali-resistant mesh tape or butted boards too tight, water wicks through and the whole assembly starts moving. That movement is what cracks tile and lets even more water in.
Which Quikrete Models This Applies To

This covers residential bathrooms built or repaired with Quikrete cement board, Quikrete floor mud or deck mud, Quikrete mortar mix, and their fast-setting underlayment products. Most Los Angeles homes we work on use Quikrete WonderBoard or HardieBacker-style 1/2-inch backer units behind shower walls, and Quikrete Floor Mud or deck mud for shower pan bases. If you’re not sure what’s behind your tile, we can identify it once we open up a small section, or sometimes by checking the edges inside the shower valve access panel.
Compatibility is where things get tricky. Quikrete backer board takes specific fasteners, usually corrosion-resistant screws or roofing nails with a minimum penetration through framing. The thinset mortar used to bond tile to Quikrete board has to be polymer-modified; plain dry-set mortar can fail to adhere. Another gotcha: Quikrete’s fast-setting underlayment has a 20-to-30-minute working window in Los Angeles summer heat, which is tighter than homeowners expect. We’ve seen DIY pours go wrong when the mix kicked off mid-spread. For shower pans, the deck mud wants a 4:1 or 5:1 sand-to-cement ratio; Quikrete’s premixed deck mud solves the guesswork, but the slope still has to be packed by hand, usually 1/4-inch per foot toward the drain.
We use Quikrete products as an OEM-equivalent for remodels where the warranty matters; aftermarket substitutes exist, but the performance difference between Quikrete’s moisture-resistant core and no-name cement board in a steam shower is measurable. For this reason, we stick with Quikrete or equal-tier brands, including complementing products from KraftMaid, Cambria, and Silestone when the project involves cabinetry or counters.
Styles & brands we work with







Signs Your Quikrete Bathroom Remodeling Is Failing
- Grout cracking along the lower shower walls. The backer board behind the tile is flexing, usually because it wasn’t spaced 1/8-inch at seams or the framing behind it is unsupported. Water gets in, which accelerates the problem.
- A shower floor that feels spongy or flexes. The Quikrete deck mud beneath the tile has broken down, often because it was mixed too wet or too dry during the original install. Once it crumbles, the tile has nothing solid beneath it.
- Musty odor that persists after cleaning. Moisture is trapped between the Quikrete board and the vapor barrier, or in the mud bed itself. In Los Angeles’s dry climate, this smell lingers longer because bathrooms don’t naturally air out like they do in humid regions.
- Efflorescence or white crust at the shower base. Water is passing through the grout and dissolving minerals from the mortar. It’s not a cosmetic issue; that white powder tells you water is migrating through the assembly.
- Loose tile that sounds hollow when tapped. The bond between thinset and Quikrete board has failed, usually from improper troweling or working past the mortar’s open time. Once one tile goes, its neighbors follow.
See the difference
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AfterReplacement Cost & What’s Included

A Quikrete bathroom remodel in Los Angeles runs $10,620 to $33,040, depending on whether we’re repairing a failed shower pan or doing a full gut and rebuild with new Quikrete substrate, tile, plumbing fixtures, and waterproofing. A small bathroom remodel sits at the lower end, $5,900 to $14,160, while a full primary bath with a walk-in shower runs higher. Here’s how the range breaks down:
- Shower pan replacement with Quikrete deck mud: $3,540 to $10,030
- Tub-to-shower conversion with Quikrete backer board: $4,130 to $11,800
- Full bathroom remodel including Quikrete substrate, waterproofing, tile, and fixtures: $10,620 to $33,040
- Localized repair to failed Quikrete board or mud bed: $945 to $3,540, depending on whether we can salvage surrounding tile
Every price we quote is written before any work starts. That number includes demolition, substrate rebuild, waterproofing, tile work, and the written guarantee. If something fails inside 365 days, we come back and fix it at no charge. That’s the Penhallow standard, backed in writing on every project.
DIY or Call Us?
You can safely check a few things yourself: look at the gap between boards inside the shower valve access panel, check whether the shower floor flexes, and look for cracked grout or efflorescence at the base. What you shouldn’t do is tear out tile without knowing what’s behind it, because Quikrete board that’s been water-damaged may be holding tile that’s still partially bonded; pulling it wrong can take framing with it, and if a shower pan has failed, the water damage usually extends further than visible at first. That said, the real reason we tell Los Angeles homeowners to call us is the guarantee. If we set the mud bed and slope the pan, and it fails, we fix it. If you do it and it fails, you’re redoing it with no backstop. Trevor Nash grew up in the Crenshaw district and will tell you plainly what a job costs before he ever picks up a hammer. That’s the Penhallow approach: we give you a number first, then pick up the tools. Call (213) 277-6578 for a free estimate.
FAQs

A properly installed Quikrete cement board or deck mud shower assembly should last 25 to 30 years in Los Angeles before the first signs of wear, and often longer. The failure we see in older local homes is almost always water intrusion from improper seam taping or slope, not the Quikrete product breaking down. When the slope is right and the waterproofing is intact, the assembly outlasts the tile. Call (213) 277-6578 and we’ll assess what’s behind your tile.
If the failure is limited to a small area and the surrounding deck mud is still solid, a targeted repair can work, usually $945 to $3,540 in Los Angeles. The problem is that water damage behind a compromised pan is often wider than what’s visible on the surface, so we only recommend repair if we’ve opened the area and verified the substrate. If it’s crumbling, we replace it and warranty the work.
A shower pan replacement or tub-to-shower conversion with Quikrete substrate typically takes three to five working days from demo to grout; a full bathroom remodel runs three to six weeks depending on scope. The Quikrete underlayment cures fast, which reduces downtime compared to traditional mortar beds, but tile setting over wed boards still needs proper cure time. We’ll give you a written timeline with the written price.
We keep Quikrete floor mud, fast-setting underlayment, and backer board on hand for most small repair jobs, and we source larger quantities directly from our Los Angeles suppliers for full remodels. If you’re mid-project and a failed substrate is holding you up, call (213) 277-6578; we can usually match your existing Quikrete product the same week.
Get a written price before any work starts. If your Quikrete bathroom substrate is failing, or you’re planning a remodel and want it done with materials we’ll stand behind, call Penhallow Remodeling Los Angeles at (213) 277-6578. We answer the phone with a live person, we show up in the window we give you, and we put the price and the 365-day guarantee in writing before we pick up a single tool.
Written by Trevor Nash, Owner, Penhallow Remodeling Los Angeles at Penhallow Remodeling Los Angeles, serving Los Angeles and nearby areas.


