Find Skilled Tile Installers Across California

The average cost to install tile flooring in California is $8–$20 per square foot (materials and labor combined). Labor alone runs $5–$10/sq ft, and tile materials range from $2–$10/sq ft for standard ceramic or porcelain. Premium natural stone or large-format porcelain can push total costs to $25–$45/sq ft. A typical 200-sq ft room costs $1,600–$4,000 installed.

Bay Area and coastal premium markets trend toward the higher end due to labor rates and CSLB licensing overhead. For a full bathroom remodel including shower tile, expect $10–$25/sq ft for floors and $15–$35/sq ft for walls. If you're also considering bathroom remodeling or kitchen backsplash installation, bundle quotes to save on mobilization.

Yes, you can install new tile directly over existing tile if the current surface is solid, crack-free, and firmly bonded to the substrate. Clean the existing tile, lightly roughen it (diamond-ground), and prime it with a bonding agent before applying new thinset. Key caveats:

• The added thickness (~⅛") can affect door clearances and transitions to adjacent flooring.
• In wet areas (showers, tub surrounds), tiling over tile is not recommended because it can trap moisture and void waterproofing warranties.
• If any existing tile is loose, hollow, or cracked, removal is required first.

A licensed installer can assess whether your specific situation is suitable for a tile-over-tile approach or whether tile removal and subfloor repair is the safer route.

A standard residential tile floor takes 2–5 days from start to finish:

• Day 1: Substrate prep, leveling, and waterproofing (if applicable)
• Day 2–3: Setting tile (a pro lays roughly 40–60 sq ft/hour for standard 12×12 tile)
• Day 4–5: Grouting, cleaning, and final inspection

A full bathroom (floor + walls + shower) typically takes 3–5 days of active work. Large-format or mosaic installations can extend the timeline by 1–2 days. Thinset requires 48–72 hours to cure before grouting, and grout needs 24 hours before the floor can be walked on.

Generally, no. Under California Building Code §105.2, installing tile on floors, countertops, or walls up to 48 inches high is considered a cosmetic surface change and is permit-exempt in most California jurisdictions.

A permit is required if the project involves:

• Moving or adding plumbing (shower, sink, toilet relocation)
• Structural changes to the subfloor
• Waterproofing system replacement in a shower or wet area
• Installing tile on an upper story where the structure may not support the added weight

If your project crosses into plumbing or structural territory, a plumbing or building permit will be needed, adding roughly 1–2 weeks to your timeline. A licensed tile contractor (C-54 classification) will handle permit coordination as part of the scope.

Ask these to separate a qualified professional from a general handyman:

1. "Are you CSLB-licensed (C-54) and insured?" – California requires a C-54 Ceramic and Mosaic Tile Contractor license for tile work exceeding $500 in labor and materials. Verify the license number on the CSLB website and request proof of general liability and workers' comp insurance.
2. "What is your substrate prep plan?" – A qualified installer will reference ANSI A108/A118 standards and explain how they'll check for flatness, moisture, and structural integrity before setting tile.
3. "How do you prevent lippage?" – Lippage (uneven tile edges) is the #1 complaint. The installer should describe how they'll manage mortar coverage (minimum 80% for floors, 95% for wet areas) and use level-setting techniques.
4. "What waterproofing system will you use in the shower?" – For wet areas, ask about the specific membrane system (sheet or liquid-applied) and whether it's a complete, manufacturer-backed system.
5. "Can I see a written, itemized estimate?" – A legitimate quote breaks out labor, materials, prep, and cleanup separately, with a start and completion date.

If you're comparing installers, also request 2–3 recent references and photos of completed work similar to your project. You can request a free, no-obligation quote to get a detailed written estimate.

A full re-grout of a standard bathroom runs $200–$500. If damage is widespread (multiple loose tiles, cracked grout across a large area), it may be more economical to remove and replace the affected section. For larger-scale issues, tile floor replacement may be the better long-term investment.

Epoxy grout adds $1–$3/sq ft over standard cement grout but offers superior stain and mildew resistance, which makes it a smart pick for kitchens and high-traffic areas.

Yes, a properly scoped tile installation includes all of the following:

• Removing old flooring and inspecting the subfloor
• Leveling with self-leveling compound or cement backer board (if needed)
• Installing a moisture barrier or cement board in wet areas
• Applying a waterproofing membrane in showers, tub surrounds, and other wet zones
• Setting, cutting, and grouting tile
• Final cleanup and sealing (for natural stone)

If you're hiring a flooring contractor who only handles the tile set and expects you to coordinate separate trades for prep and waterproofing, that's a red flag. A full-service tile installer should manage the entire process from substrate to finish. Call 877-753-1892 to schedule a site assessment and get a complete scope of work in writing.