Painting grout | Duravit

Most bathrooms thrive on clean lines, harmonious colors, and high-quality finishes. Tile grout is often essential to achieving this—yet it’s frequently overlooked. However, painting grout is becoming increasingly popular and is an effective way to add pops of color to the bathroom. Furthermore, even the most beautiful tiles lose their appeal if the grout looks gray or stained. Find out everything you need to know here.

Key points at a glance:

Using grout as a design element: Colored or high-contrast grout can effectively alter the look of tiles and the style of the bathroom.
Choose the right materials: For mortar and silicone joints, use special joint sealants and appropriate tools.
Prepare the joints carefully: Cleaning, drying, and checking for damage or mold are crucial for achieving an even and long-lasting result.

A modern, colorful bathroom featuring bathroom furniture and fixtures from the Duravit D-Neo series

Joints as a design element

Grout is much more than just a functional detail. Its color can significantly influence how calm, spacious, or textured a bathroom appears. That is why, especially in modern bathroom designs, it is increasingly becoming a focal point of the design.

tone-on-tone

Wall-mounted toilet from the Duravit D-Code series

Contrast joints

Using contrasting colors to grout bathroom tiles deliberately highlights the tile size. Dark grout paired with light-colored tiles creates graphic patterns and adds depth and character to the bathroom. This creates a modern, architectural look, especially with large-format tiles or geometric laying patterns.

It is important to have a cohesive overall design: too much contrast can quickly make a room feel cluttered.

Single-handle basin mixer from the Duravit Wave series in brushed bronze

Basic color selection

If you don’t want to go for a tone-on-tone look or overly stark contrasts, you should pay attention to the color temperature to find the right design for you. Warm grout colors like sand, greige, or cream enhance a cozy atmosphere and pair well with wood, natural stone, or matte finishes.

Cooler shades of gray or charcoal, on the other hand, have a more understated look and are a perfect match for minimalist bathrooms with a concrete or stone finish.

Materials for grouting

Make sure you have the right materials on hand for painting over the joints.

Front view of a sink from the Duravit D-Code series with chrome faucet

Colors

Tools

You should also have the right tools on hand. This includes everything you need to clean grout and tiles so you can clean the treated areas both before applying the paint and in case of any spills. There are special grout pens available for painting, though these are better suited for smaller rooms. For larger areas, we recommend using small brushes or special grout rollers and masking off the adjacent tiles.

How to paint grout

Once you have all the necessary materials, you can start painting the grout in the bathroom. Here’s the best way to proceed:

Sink area featuring a Duravit Starck 3 vanity on an L-Cube vanity base in front of a mirror, with a tall cabinet next to it

1. Check the joints

Before painting the joints, you should check them for damage and mold. If you find any, do not paint the joints; they must be replaced first. A handy tip: For mortar joints, you can mix the paint directly into the mortar; for silicone joints, colored materials are sometimes available at specialty stores.

Tip: Check out our magazine to learn how to replace silicone caulking and what to do if you find mold in your bathroom.

2. Clean the grout

Duravit Sustano shower system on a tiled wall

3. Masking

Duravit D-Code series sink with chrome faucet

4. Painting