How to Fill the Gap Between Tiles

When exploring tiles for any interior or exterior space, people rarely think about ‘how to fill the gap between tiles.’ Their attention primarily goes to the design, colours, size, etc. While these are all important aspects to consider, they won’t deliver the appearance you expected if there are visible gaps between tiles after installation.

Filling the gaps that occur between tiles is more important than one would think. To fill the gap between tiles, clean out old grout, then press grout into the joints with a rubber float at a 45° angle and wipe off the excess with a damp sponge. Consider using sanded grout for joints wider than 3 mm, unsanded for narrower ones, and epoxy grout for wet areas. Moreover, it would be helpful to use silicone caulk at corners and where tiles meet sinks or tubs. Choose the right grout colour to create a neat and good-looking finish that complements your tiles.

Besides affecting appearance, gaps between tiles can lead to long-term damage to their structural integrity. Over time, this can cause tiles to loosen, making surfaces harder to clean. Knowing how to fill the gaps in tiles can save you in such situations.

To make it easier for everyone, we’ve created this comprehensive guide on how to fill tile gaps. It covers everything from the resources you need to fill tiles to step-by-step process instructions, so read the full blog.

Also Read: Which Tiles are the Best for Floor: The Definitive Guide to Flooring Materials

Grout or Caulk: Choosing the Right Filler

This is the starting point of filling gaps between every type of tile, including vitrified tiles, ceramic tiles, and others. Since not all tile gaps are the same, you must choose the right filler for optimal results. You’ll ideally have to choose between the two:

• Grout

Grout is a common filler option, designed for regular joints between tiles laid on the same plane, such as walls and floors. It hardens and provides structural support to all the installed tiles.

• Caulk

Unlike grout, caulk remains flexible and is better suited for areas that experience movement. You can think of spaces, such as corners, edges, and places where tiles meet bathtubs, sinks, or countertops.

Types of Grout and When to Use Them

Choosing the right grout depends on joint width and tile material. There are usually three types of grouts –

• Sanded Grout

It works best for wider tile joints and offers better strength for floor tiles.

• Unsanded Grout

This type of grout is suitable for narrow gaps and delicate surfaces, such as glass or polished stone, where scratching is a concern.

• Epoxy Grout

It’s the most durable, water-resistant option. You can use it in wet or high-traffic areas.

Also Read: Ceramic Tiles vs. Vitrified Tiles: The Detailed Guide for You

Tools and Materials You’ll Need

Whether you’re wondering how to use white cement to fill gaps between tiles or use another filler, you’ll need a few must-have tools and materials. Hence, ensure you get the following:

• Gloves
• Bucket
• Grout float
• Margin trowel
• Sponge
• Clean water
• Your chosen grout or caulk

For caulk application, you’ll need the additional tools and materials listed below:

• Utility knife or grout rake
• Vacuum or brush
• Caulk gun
• Finishing tools
• Grout sealer

Preparation: Cleaning and Removing Old Material

If you have a space-related query, such as ‘how to fill gaps between tiles in a bathroom,’ or ‘how to fill gaps between floor tiles,’ we’d say start by cleaning and removing the old material from the existing gaps between floor tiles. Begin by removing cracked or loose grout using a grout rake or utility knife. Ensure you avoid damaging the tile edges at this step.

Old caulk must be fully removed to allow new material to bond correctly. Once cleared, vacuum the joints and clean them with a mild solution to remove any grease or residue. Let the surface dry completely before filling the gaps. Hurrying may cause moisture to remain in gaps, weakening adhesion and shortening the repair’s lifespan.

Filling Regular Tile Gaps with Grout: Step-by-Step Process

Once preparation is finished, follow the steps listed below to fill the tile gaps.

• Mix the Grout Correctly

Prepare the grout according to the manufacturer’s instructions. The mixture should be thick yet workable. Let it rest briefly (if required), then remix before application.

• Pack Grout Into the Gaps

Press the grout firmly into the joints at a diagonal angle using a grout float. It ensures complete filling so there are no air pockets in between the gaps.

• Remove Excess Grout

Hold the float at about 45 degrees and scrape diagonally across the tiles to remove surplus grout. Avoid pulling materials from the joint at this stage.

• Smooth and Clean the Surface

After the grout begins to set, wipe the tiles gently using a damp sponge. Rinse frequently and avoid excessive pressure to prevent hollow joints.

• Allow Curing and Seal (If Required)

Once fully cured, you can apply a grout sealer to protect it against moisture and staining.

Also Read: How to Use Glossy Tiles for an Instant Style Upgrade

How to Fill Tile Gaps with White Cement

White cement can be used to fill small gaps between tiles. It gives the tiled surfaces a cleaner, more uniform appearance. However, it is important to use it in suitable areas, as regular white cement may not offer the flexibility, stain resistance, or moisture protection of purpose-made tile grout. If you are planning on opting for this process, here is what you need to know.

Step-by-Step Process

1. Clean the gaps: Remove dust, loose cement, dirt, and debris from the joints using a small brush. Make sure the gaps are clean before applying white cement.
2. Prepare the mixture: Mix white cement with clean water according to the product instructions until you get a smooth, lump-free paste. Make sure that it is not too runny.
3. Apply the cement: Use a rubber grout float or a suitable filling tool to press the mixture into the gaps. Ensure the joints are filled evenly without leaving air pockets.
4. Remove excess material: Wipe the tile surface gently with a damp sponge before the cement hardens. Do not use too much water, as it can weaken the mixture.
5. Allow it to settle: Let the filled joints dry and cure according to the manufacturer’s recommendations.

An important point to remember for bathrooms, kitchens, and other moisture-prone areas is to choose a suitable tile grout instead of ordinary white cement for better performance.

Using Caulk for Corners and Flexible Joints

If you’re using caulk as filler, follow the steps listed below.

• Remove Old Caulk

Begin by removing any existing caulk with a utility knife, and then clean the joints thoroughly.

• Prepare Clean Edges

Apply painter’s tape along both sides of the joint for a neat finish.

• Apply and Smooth the Caulk

Run a steady bead with a caulk gun, then smooth immediately with a finishing tool or a damp finger.

• Let it Cure Properly

Don’t wait to remove the painter’s tape. It should be removed while the caulk is still wet. Allow full curing before exposing it to water.

• Drying, Sealing, and Final Checks

After following all the steps, ensure you give it enough drying time. Drying time will vary based on two factors: the product type and environmental conditions. Once curing is done, clean off any remaining haze and inspect joints for low spots. You may refill if necessary. Proper drying and sealing will ensure a durable and long-lasting finish.

Conclusion

Filling tile gaps is crucial for both structural and aesthetic reasons. Although many people are aware of it, they lack the right guidance to do the needful. We’ve created this complete guide to answer all your questions related to ‘how to fill the gap between tiles,’ so you can do it without any challenges.

If you’re planning to install new tiles in some spaces, you can get them from Orientbell Tiles. Our latest tile collection is diverse and vast, so you’re sure to find the right tile for your house, office, or any property.