Can You Change the Color of Existing Grout?

Yes — you can change the color of your existing grout without removing it. The process is called grout color sealing, and it's one of the most cost-effective ways to transform the look of a tile floor without the expense and mess of regrouting or tile replacement.

How Changing Grout Color Works

Grout color sealing applies a pigmented, acrylic-based sealer over your existing grout lines. The sealer bonds to the surface of the grout and creates a fresh, uniform color. Because it's a surface treatment, it doesn't require removing the old grout — it simply covers it.

Here's what the process involves:

1. Deep cleaning — The grout is professionally cleaned to remove all embedded soil. Nothing should be sealed under the color sealer.
2. Grout repair — Any cracked or missing grout is repaired. Color sealer is a surface treatment and won't fill structural gaps.
3. Drying — The grout must be completely dry before color sealer is applied.
4. Color selection — We bring physical color samples to your home so you can see and approve the exact shade next to your tile.
5. Application — The color sealer is carefully applied to each grout line, with excess wiped from the tile surface.
6. Curing — The floor needs curing time before heavy traffic resumes.

What Colors Are Available?

Color sealers come in a range of shades, including:

• Bright white and off-white — Classic and bright, but shows soil more easily in high-traffic areas
• Light gray — A practical choice that stays cleaner-looking than white
• Medium gray — The most popular choice for high-traffic areas; hides soil well
• Dark gray and charcoal — Dramatic contrast with light tile; very practical for hiding soil
• Custom matches — Match your tile color for a seamless look, or choose any shade in between

For help choosing, see our guide to the best grout colors for white and modern tile.

When You Can Change Grout Color

Color sealing works on most residential grout, but there are a few requirements:

• Cement-based grout (sanded or unsanded) — This is what most homes have, and color sealer bonds well to it.
• Structurally sound grout — If grout is crumbling or missing, it needs repair or regrouting first.
• Clean, dry grout — The grout must be professionally cleaned and fully dry before color sealer is applied.

When You Can't Change Grout Color

Color sealing won't work in a few situations:

• Epoxy grout — Epoxy grout is non-porous and the color sealer won't adhere to it.
• Severely damaged grout — If grout is extensively cracked, crumbling, or missing, regrouting is necessary before any color treatment.
• Freshly installed grout — New grout needs time to cure before any sealer is applied.

We'll identify your grout type and assess its condition during the free inspection.

Color Sealing vs. Regrouting

If your grout is stained but structurally sound, you have two options: color sealing or regrouting. Here's how they compare:

• Cost: Color sealing is significantly less expensive than regrouting.
• Time: Color sealing is typically completed in one visit. Regrouting takes longer and creates more dust and debris.
• Mess: Color sealing is a clean process. Regrouting involves grinding out old grout, which is dusty and messy.
• Result: Color sealing creates a uniform surface color. Regrouting replaces the grout entirely, which is better for structurally damaged grout.

For most homeowners with stained but sound grout, color sealing is the more practical choice.

How Much Does It Cost to Change Grout Color?

Color sealing is $2.00 per square foot, plus the required deep cleaning at $0.60 per square foot — so a combined project is $2.60 per square foot. A $150 minimum professional service applies. Your exact quote depends on tile size, grout line width, and the condition of your grout. See our detailed grout color sealing cost guide for more information.

Ready to change your grout color? Request a free estimate or call (813) 607-1182. We serve Wesley Chapel, New Tampa, Land O' Lakes, Lutz, Trinity, Odessa, and surrounding Tampa Bay communities.