Grout color sealing is a pigmented epoxy coating that bonds to existing sanded or unsanded grout, recoloring every line to a uniform shade and locking it against staining, moisture, and mold. Done correctly on intact grout, it lasts 10 to 15 years and is backed by our 15-Year Warranty. For most Arizona bathrooms and floors, it costs a fraction of retiling and is completed in a single day.
What is grout color sealing, exactly?
Color sealing is a two-in-one treatment: pigment plus a high-bond sealer in the same product, applied line by line after a deep professional cleaning. The result is a waterproof, uniform color across every joint, no matter how stained or mismatched the grout was before. It is not paint, and it is not a topical clear coat. The product chemically bonds into the grout pores.
How long does grout color sealing last?
Professional grout color sealing lasts 10 to 15 years in a typical Arizona residential setting, and Lazona Tile Care backs it with a 15-Year Warranty on the seal itself. Shower floors and heavy-traffic kitchens land at the lower end of that range. Bedroom and guest bath floors, where wear is light, often look new past year 15.
How much does grout color sealing cost in Arizona?
Most Arizona projects fall between $1.50 and $3.50 per linear foot of grout, or roughly $1.00 to $2.00 per square foot of tiled area. A standard Gilbert or Chandler master bath runs $450 to $950. A 1,200 square foot tile floor in a Mesa home typically runs $1,400 to $2,400. Pricing depends on grout-line width, tile size, and the level of cleaning needed before sealing.
Is color sealing better than replacing grout?
For intact grout that is simply stained, discolored, or mismatched, color sealing is dramatically better. It costs 80 to 95 percent less than a tear-out, finishes in one day instead of one to two weeks, and avoids dust, demolition, and tile breakage. It is not the right call when grout is structurally failing, missing, or hiding moving tiles. In those cases we repair or regrout first, then color seal.
Color Sealing vs Full Retiling: the real numbers
| Approach | Typical Cost | Timeline | Lifespan |
|---|---|---|---|
| Grout color sealing (Lazona) | $450 to $950 | 1 day | 10 to 15 years, 15-Year Warranty |
| Regrout + color seal | $900 to $2,200 | 2 to 3 days | 10 to 15 years, 15-Year Warranty on seal |
| Full tear-out and retile | $15,000 to $30,000 | 1 to 2 weeks | 15 to 25 years |
On a standard Arizona master bath, color sealing saves $15,000 to $30,000 compared to tearing out the tile, and you get to use the room the next morning.
Does grout color sealing work on shower walls and floors?
Yes. Color sealing is especially effective in showers because it waterproofs the grout lines and stops the dark mildew shadow that comes back no matter how often you scrub. Walls take the color seal cleanly. Shower floors need extra prep because soap film and hard water scale must be removed first, but the result is the same: uniform color, sealed surface, no more dingy lines.
How is color seal different from a clear sealer?
A clear penetrating sealer is invisible. It slows liquids from soaking in, but it does nothing to fix discoloration, mismatched grout, or shadows from old stains. Color seal is a pigmented epoxy that recolors the grout and waterproofs it in the same coat. If your grout looks dirty even after a deep clean, only color sealing fixes it cosmetically.
What about the prep? Why does it matter so much?
Color seal only bonds to clean grout. We start with a high-heat professional clean to lift years of embedded oil, hard water, and soap residue, then we let the grout fully dry. Skipping or rushing prep is the single biggest reason DIY color seal kits peel within months. Done right, the seal becomes part of the grout.
Ready to color seal your grout?
We provide free in-home assessments across Chandler, Gilbert, Mesa, Queen Creek, and Paradise Valley. Call (480) 352-0392 or book a consultation through our contact page. Members of The Zone receive priority scheduling and additional benefits on color sealing and related services.