Grout Repair Cost LA: Spot, Bathroom, or Whole-House

Spot regrouting: $120–$200

Spot regrouting is the most common LA call — a few feet of cracked, missing, or stained grout in a shower corner, around a tub, or along a kitchen backsplash. For 4–10 linear feet of joint work where the existing grout is otherwise sound, the typical LA price is $120–$160. For a longer run (10–20 linear feet) or a section that needs deeper removal because the old grout has gone powdery, expect $160–$200.

What's actually included at this price: scoring out the failing grout to a uniform depth (2–3mm minimum, more if the joint has degraded deeper), vacuuming out dust and loose material, masking adjacent surfaces, mixing fresh grout to match the existing color, packing the joints, tooling them flush, and wiping down the surface. Most LA pros use Mapei Keracolor U or Custom Building Products Polyblend Plus for unsanded joints under 1/8-inch and the sanded version for wider joints.

What's not included unless you specify: full color sealing of surrounding aged grout to match the new work, mold remediation if the joints have visible black mold growth deeper than the surface, or replacing tiles that are loose or cracked along the same run.

Single shower wall regrout: $280–$480

When one full shower wall needs regrouting — typically the wettest wall, the one that takes direct spray from the showerhead — pricing moves to $280–$480. For a standard 4x6 foot shower wall with sound tile and joints that just need refreshing, expect the lower end. For a wall where the corners need rebuilding, the joints are mineral-stained from years of LADWP hard water, or the bottom row near the pan needs extra attention because of moisture wicking, expect the upper end.

The grout removal step is what drives time on this job. Pros use either a Dremel rotary tool with a grout-removal bit (best for thin joints and tight spaces) or an oscillating multi-tool with a carbide grout blade (faster for longer straight runs). Either way, removing 30–60 linear feet of grout takes 60–90 minutes if done carefully — meaning without chipping the tile edges, which is the most common amateur mistake on this job.

After removal, the joints get vacuumed thoroughly, the wall gets damp-wiped to remove dust that would weaken the new grout bond, and fresh grout is packed in with a rubber float. Cure time before water exposure is typically 48–72 hours, so plan to use the other bathroom or the gym for two to three days after the work.

Full bathroom regrout: $580–$980

A full bathroom regrout — all shower walls, the shower floor, the tub surround, and the bathroom floor — runs $580–$980 in Los Angeles. For a small standard 5x8 foot bathroom with simple tile layouts, expect the lower end. For a master bath with a separate tub and shower, intricate tile patterns, or a layout that includes a niche or bench, expect the upper end.

What's actually included: removing all failing grout throughout the bathroom (typically 100–200 linear feet of joint), patching any tile that's chipped or loose during removal, regrouting all joints with color-matched grout, sealing the new grout once it cures, and replacing the silicone caulk at all change-of-plane joints (corners, where wall meets floor, around the tub or pan). The silicone work is critical — see the caulking guide for why these joints get silicone and not grout.

Most LA pros do a full bathroom regrout over 1–2 days of active work plus a 48-hour cure. The tile-only labor is $400–$700 of the total; the rest is materials (premium grout for an entire bathroom is $80–$150 in product cost), masking and prep, and final sealer application.

Color sealing: $180–$380

Color sealing is the unsung middle option between spot regrout and full regrout. Instead of removing and replacing grout, a color sealer (Aqua Mix Grout Colorant or Miracle Sealants 511 H2O Plus tinted to match) is applied to the existing grout joints, transforming stained or uneven grout to a clean uniform color and adding a hydrophobic seal that resists future staining.

For a single shower or kitchen backsplash, color sealing runs $180–$280. For a full bathroom, $280–$380. The work is fast — usually a single 2–3 hour visit — and the result holds for 5–8 years before needing a refresh. The catch is that color sealer only works on grout that's structurally sound: if joints are missing, cracked, or crumbling, you need actual regrout work first, and then the color seal goes on top once it cures.

Color sealing is most popular in LA bathrooms where the homeowner is happy with the layout but the grout color reads dingy from years of hard water and soap scum. It's a way to get a regrouted look at half the price of a real regrout, and it's especially common in DTLA, West Hollywood, and Koreatown condo bathrooms where the tile is modern porcelain and the only real issue is grout color.

Why LADWP hard water destroys grout

Los Angeles tap water from LADWP runs 100–180 ppm hardness depending on neighborhood, and the east side of the city — Highland Park, Eagle Rock, Pasadena, Mt. Washington — sits at the harder end of that range. Hard water is the single biggest reason LA grout fails faster than the manufacturer's stated lifespan.

• Mineral staining: calcium and magnesium in hard water deposit on grout joints every shower, building up a white-gray mineral film that stains the joint deeper over months. By year 5, joints that started as light gray often read as mottled gray-white.
• Soap scum bonding: hard water reacts with soap to form scum that bonds to grout and is much harder to clean off than soap residue from soft water. Aggressive scrubbing wears the grout surface down faster.
• pH degradation: cleaning products people reach for to fight mineral and soap buildup (CLR, Lime-A-Way, vinegar) are acidic, and acid on cement-based grout slowly etches the surface and weakens the joint. After a few years of weekly acid cleaning, the grout becomes powdery and has to be replaced.
• Pasadena and east-side specifically: water hardness in foothill neighborhoods consistently tests 20–40 percent harder than west-side LA. Showers in Pasadena, La Cañada, and Altadena typically need their first regrout 2–4 years sooner than the same construction in Santa Monica or Mar Vista.

What to know before booking grout work

A few things that change the quote or the outcome:

First, take photos in good light and send them when you book. Grout color matching is much more accurate from photos than from a verbal description. A pro can identify whether you have sanded or unsanded grout, what color family it's in, and whether the joints are 1/16, 1/8, or 1/4-inch — all of which affect what grout product they bring.

Second, decide ahead of time whether you want a sealer applied. Most LA pros include a basic penetrating sealer (Miracle Sealants 511 Impregnator is the standard) on full regrouts but charge separately for spot work. A sealer adds $40–$80 to a spot job and is worth it for showers and kitchen backsplashes where the grout will see daily moisture or food spatter.