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Santa Clarita Valley

Tile Work in Castaic

Tile outlasts almost everything in a bathroom except the wall behind it. That matters in Castaic, where Census counts for the Castaic CDP place nearly four in ten housing units in the 1980s, so a shower from that decade has been taking water for close to forty years. We open the wall, read what the old assembly did, and rebuild it with a true waterproof layer before any tile goes up. The scope and a fixed price are in writing before the first old tile comes down.

Or see every service we handle in Castaic

Marble star and cross mosaic being set on a shower floor around a square drain, with a level laid across the surface to check the fall
Timeline
A few days to a couple of weeks
Permits
Not required for finish work
Serving
Castaic
Written quotes
Every project

Our work

Recent work

Shower alcove tiled in white subway tile around a window, with a navy patterned floor tile outside the curb
Subway tile punishes a wall that is out of true, so the layout is set before the first piece goes on.
Finished hexagon marble mosaic shower floor with a square center drain, marble look wall tile, and a plank tile cap on the curb
Small tile bends across a floor that slopes four ways. A large tile bridges the slope and holds water at the corners.

Opening a shower from the 1980s

Showers built in that decade, across California, were commonly tile over a mortar bed on wire lath, tile over green board, or a fiberglass unit. The mortar bed is heavy and sound more often than people expect. Green board was sold as moisture resistant, and a moisture resistant board sitting behind grout lines that have soaked for decades is where soft studs come from. Grout was never waterproof.

So demolition doubles as an inspection. We look at the bottom plate, the studs at the valve wall and the subfloor at the curb before pricing the rebuild, and you see what we see. The new wall gets cement board or foam board under a continuous membrane, lapped at the seams and corners and turned down into the pan, and the pan is flood tested before tile covers it.

What the County permits, and what tile alone does not trigger

Castaic is unincorporated, so building permits come from Los Angeles County Public Works. The County building code puts tiling on its list of finish work that needs no building permit where disabled access rules do not apply. That covers plenty of tile work: a backsplash, a hallway floor, a wainscot. It does not cover the plumbing and electrical that often come along, which keep their own permits unless separately exempted.

A shower rebuild that moves the drain, swaps the valve, or adds a heated floor on its own circuit brings a trade permit and inspections, filed through the County's EPIC-LA portal. The written scope splits the tile that needs nothing from the work that does, so you can see what gets inspected and why. When the tile is one piece of a full Castaic bathroom remodel, the permit covers the whole room under one plan.

Outdoor tile on a slope, and a rule that is not about your house

Tile outside meets full sun, heat and water that has to go somewhere. On a sloped Castaic lot the patio has to shed water away from the house without dumping it down a bank. Where that water meets a graded slope, the Castaic CSD's hillside standards come into play: terraced drains in cut and fill slopes are to be paved with colored concrete that blends with the soil, or hidden with berms.

People also ask whether the community standards push houses toward Spanish tile. They do not. The district's call for Spanish, Southwestern or Mediterranean architecture with a tile roof is written for commercial buildings. On your own home, the tile, the color and the pattern are yours to pick.

What this service includes

  • Tile work installation across kitchens, baths, entries, and floors
  • Shower tile installation over waterproofing membrane and backer board
  • Floor tile installation, small format through large format porcelain
  • Backsplash tile installation, cut cleanly around outlets and end pieces
  • Natural stone tile installation, sealed and detailed for the material
  • Substrate prep, waterproofing, and layout planning before the first sheet of thinset
  • Grout, sealing, and edge trim to finish the install cleanly

Talk to us about tile work in Castaic

We come out to your Castaic property, walk the job, and put the scope and the number in writing before anything starts. The visit costs nothing and you are under no obligation after it.

FAQ

Common questions

The questions we hear most often, answered plainly. If your question is not here, call us and we will answer it the same way.

Does the Castaic CSD's Spanish style rule mean my house needs Mediterranean tile?

No. The Castaic Area Community Standards District does call for Spanish, Southwestern or Mediterranean architecture with a tile roof, but that section is written for commercial buildings, and it leaves out those in an industrial park. It says nothing about the tile in your shower or on your patio. Source: LA County Code Title 22, Section 22.312.070.B.2.a, Castaic Area CSD commercial architecture standard, Ord. 2019-0004, Municode Supplement 146 Update 2

Why do so many Castaic showers need a rebuild, not just fresh grout?

Age, mostly. Census counts for the Castaic CDP put nearly four in ten housing units in the 1980s, the biggest single decade, and fewer than one in ten before 1980. A shower from the 1980s has close to forty years of water behind it. Regrouting fixes how the surface looks. It does nothing for a board that has gone soft or a pan that has started to seep, and fresh grout over a wet wall only hides the problem for another season or two. When the grout keeps cracking in the same corner, the caulk at the tub keeps failing, or paint on the other side of the wall is bubbling, the fix lives behind the tile. We tell you honestly which case you have. Source: US Census Bureau, American Community Survey 2024 5-year estimates, Table B25034 Year Structure Built, Castaic CDP

Does tile work in Castaic need a County building permit?

Tile by itself does not. The County building code lists tiling among finish work exempt from a building permit where disabled access rules do not apply. The same section keeps separate plumbing, electrical and mechanical permits in place unless they are exempt on their own, so a new shower valve, a moved drain or a heated floor circuit still gets permitted and inspected. Source: LA County Code Title 26 section 106.3 item 20 and closing paragraph, work exempt from permit, Ord. 2025-0047, effective 1 Jan 2026

Why does the tile near the bottom of our old shower sound hollow?

The tile has let go of what is behind it. Tap along the bottom rows and listen. Hollow tile near the tub or pan usually means water has been reaching the board for a long time and the board has lost its grip. It is a reason to open the wall, not to glue the loose pieces back.

What gets inspected when a Castaic shower is rebuilt under a County permit?

The plumbing, before anything covers it. The valve and supply lines are checked with the wall open, and the shower pan is water tested with the drain plugged so the inspector can see it hold. Only then do board and tile go over it. We request the inspections through EPIC-LA and plan the tile setter around them.

Can large porcelain tile go over a Castaic slab in a mapped liquefaction zone?

Yes, with the cracks dealt with first. Parts of Castaic sit in state liquefaction zones. Whether yours does is a quick check by address. That mapping describes how the ground can behave in a strong earthquake, and it mostly shapes the design of new foundations, not a floor finish. What large tile cares about is movement already in the slab. Big pieces cannot flex, so a crack that opens and closes with the seasons will split them along a clean line. We map every crack once the old floor is up, grind any lip flat, and lay a crack isolation membrane over the ones that show movement. Where a crack has shifted up or sideways, you hear about it, because that is a question for someone other than a tile setter.

Can you tile a bathroom in a manufactured home in Castaic?

Often, with weight and flex kept in mind. Castaic's Census counts include mobile homes. The permit requirements for your home get confirmed first, and the floor comes second. Manufactured home floors are generally lighter and flex more than a site built floor, and tile cracks when the floor under it moves. That points toward thinner, lighter porcelain, an added layer of plywood where the structure allows it, and an uncoupling membrane. On the walls, a lightweight foam board saves real weight over cement board. A thick mortar bed shower belongs in a different house.

Where should a tiled patio drain on a sloped Castaic lot?

Away from the house and into a controlled path, never straight over the edge of a slope. Water that sheets off a patio onto a bank cuts channels and can undermine the ground below. In Hillcrest, slopes and parkways have been maintained through a County landscape maintenance district, so before a patio drain points anywhere, we confirm where your lot ends and the district's area begins.

Want this one answered for your own project?

What outdoor tile holds up to a Castaic summer?

Porcelain made for exterior use, in a lighter color, with a textured surface. Dark tile in full sun gets hot enough to hurt bare feet, and smooth tile turns slick when a hose or a sprinkler hits it. The setting materials and grout need to be the exterior kind as well, and the field needs movement joints, because a sunny patio grows and shrinks every day.

Does the fire zone on our Castaic parcel affect a tiled patio?

The tile and the slab under it will not burn, so they are not what the wildfire rules worry about. A wood patio cover or deck tied to the house is a different matter, and it gets checked against the parcel mapping as part of a Castaic patio or deck project.

Does retiling a shower change the Assessor's value?

A like for like retile does not. Turning a tub into a larger shower changes the layout, and the Assessor treats layout changes as possibly assessable.

Should the old fiberglass tub and surround be replaced with tile?

If the rest of the bathroom is being redone, it is usually worth it. One piece fiberglass units were common in homes of the 1980s and 1990s because they went in fast. They do not come out fast. Most are too big to leave through a door and get cut up in place. A tiled surround over a waterproof board lasts longer, can be repaired one tile at a time, and lets you add a niche, a bench or a glass wall. A new acrylic unit is still a fair choice on a tight budget, and we price both side by side.

Our 1980s kitchen has tile counters. Should they be retiled or replaced?

Replaced, as a rule. Tile counters from that decade often sit on a thick mortar base, and new tile laid over old grout lines rarely stays flat. Stone or quartz is the common swap, with tile moving up to the backsplash. When the counters go, it often makes sense to plan them with the rest of the Castaic kitchen.

Could old tile adhesive in a Castaic house contain asbestos?

Some can. Certain adhesives and floor tiles made into the 1980s contained asbestos, and black mastic is the one to watch. Tile set in mortar raises less concern than tile glued down. Before anyone grinds, a sample goes to a lab.

Can a heated mat go under the new bathroom tile?

Yes. The mat sits in thinset under the tile and needs its own circuit and a thermostat. A panel from the 1980s or early 1990s may be short on space, so we check it first. The circuit falls under the County's separate electrical permits, even though the tile itself needs no building permit.

Does a tile floor in a detached Castaic house need movement joints?

Yes, around the edges and across large rooms. A detached house has exterior walls on every side, and a floor that catches afternoon sun through a slider moves more than one in a shaded hall. Grout cannot absorb that. A flexible sealant joint at the perimeter and at set intervals in the field lets the tile move without tenting.

Are walls in a 1980s house straight enough for large format tile?

Not always. Studs from that era have had decades to twist or bow, and a big tile shows every dip as a lip at its edge. We check each wall with a long straightedge, then shim, plane or replace studs, or float the surface, before the first piece goes up.

Can a curbless shower work in an older Castaic house?

It can, and the floor structure decides the effort. The shower area has to drop below the bathroom floor so water runs to the drain. Over a slab, that means cutting and recessing concrete. Over a raised floor, it means reframing between the joists. The membrane then runs well past the shower area, since no curb holds the water back. We confirm the foundation on the walk before you commit to the look.

Do you set tile only, or handle the whole bathroom?

Either. Tile can be its own job, or part of a full bathroom rebuild with plumbing, electrical and the County permit handled under one scope.

We plan to stay in Castaic for years. Which tile choices age well?

Porcelain over ceramic for floors, since the color runs through the body and chips show less. Smaller tile or a textured finish on shower floors for grip. A mid tone grout that does not show every mark. Census counts show most occupied Castaic homes are owner occupied, and an owner who lives on a floor for decades should pick for wear, not for a listing photo.

Does the Castaic Town Council review tile or remodeling work?

No. The Town Council is an elected advisory body the County notifies on land use matters under the CSD. A tile job is not a land use matter.

How do we get a written tile price for a Castaic home?

Book a walk. We tap the old tile, look at the valve wall and the pan, check the slab or floor for cracks and flex, and separate the finish work that needs no permit from the plumbing and electrical that do. The quote itemizes demolition, board and membrane, and setting, with a fixed price in writing.

Request a tile work quote in Castaic

Book a free walkthrough and we will price your project in writing before any work begins.