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How to Grout Tiles: A 7 Step Guide
The tiles might be the stars of the show, but grout is what ties the whole thing together.
It fills the gaps, locks the layout in place and gives your floor or wall that finished, polished look. That is why learning how to grout tiles properly is one of the most important jobs of any DIY bathroom do-over. Whether you are working on bathroom wall tiles, a kitchen splashback or outdoor paving, getting the grout right makes a big difference.
Done well, it protects your tiles and keeps moisture out. Done poorly, it can crack, stain or start looking tired before you have even stepped back to admire your handiwork.
So if you are ready to roll up your sleeves, this Cheapestiles guide will show you exactly how to grout tiles the right way, without blowing the budget or making a mess of your masterpiece.
Why Grouting Matters More Than You Think
Grout is not just filler. It matters because it:
• Seals the gaps between tiles
• Helps stop water seeping underneath
• Adds strength and stability to the surface
• Shapes the overall look of your space
In bathrooms, that means protecting the waterproofing and keeping mould at bay. In kitchens, it handles spills and splashes.
Outdoors, it helps your tiles withstand heat, rain, and general wear and tear. The right grout also changes the vibe. Matching grout gives you a seamless, calm finish. While contrast grout highlights shapes and patterns, especially with subway tiles or mosaic tiles.
Even marble-look, terrazzo, or concrete-look tiles can shift in style depending on your grout colour choice.
Cheapestiles tip: before you start, make sure you are using the right grout for the job. Wet areas, high-traffic floors and outdoor tiles all have different needs. If you are unsure, the team at Cheapestiles can help you avoid a grout regret later.
Step 1: Let the Tile Adhesive Fully Cure
First rule of grout club. Don’t rush it.
If your adhesive has not properly set, grouting too early can shift tiles and throw off your lines. Check that tiles feel firm and stable before moving on. A little patience here means fewer cracks and no tiles sliding out of line.
Most adhesives need at least 24 hours to cure, sometimes longer depending on the product and conditions.
Step 2: Clean the Tile Surface and Joints
Before mixing any grout, remove spacers and clean out the joints. Dust, debris and leftover adhesive can stop grout from bonding properly.
Then, give the surface a quick tidy up:
• Vacuum or brush out the joints
• Wipe tiles with a damp sponge
• Check corners and edges for buildup
This is especially important for textured tiles, Moroccan tiles, or terrazzo-style finishes, where dust can hide in small grooves. Clean joints equal clean lines.
Step 3: Mix the Grout Properly
Grout waits for no one. Once it starts to set, it means business.
That is why it’s important to follow the instructions on the packaging. Add water gradually and mix until you get a smooth, thick consistency.
Think peanut butter, not soup. Too runny and it will slump out of the joints. Too thick, and you will be fighting it the whole way.
Once mixed:
• Let it sit for a few minutes
• Give it one more stir
• Only mix what you can use in the working time
Step 4: Apply the Grout with a Float
Using a rubber grout float, spread the grout diagonally across the tiles.
Press firmly to push it into the joints. Work in small sections so you stay in control. Make sure every joint is packed properly. Gaps or air pockets can lead to cracking down the track.
Cheapestiles tip: bathroom floor tiles or slip-resistant tiles, take your time. Floors cope with more pressure than walls, so those joints need to be solid.
Step 5: Remove Excess Grout
After about 10 to 20 minutes, the grout will start to firm up. This is your cue to clean off the excess! This is where the finish starts to shine, so do not rush it. Keep those lines neat.
Use a damp sponge and wipe diagonally across the tiles. Rinse the sponge regularly and avoid overusing it. You want to smooth the joints, not wash them out.
Step 6: Buff Off the Haze
As the grout continues to dry, you might notice a light haze on the surface…
Don’t stress, that’s normal!
Once it has set a bit more, use a clean dry cloth to buff it off. Gloss tiles and marble-look tiles tend to show haze more, so give them a careful once-over.
Cheapestiles tip: Be careful not to leave the haze on too long, as it can become harder to remove. A quick buff now saves a bigger clean later.
Step 7: Seal if Required
Some grout types, especially cement-based grout, benefit from sealing once fully cured. This adds extra protection against stains and moisture.
Sealing is a smart move in:
• Showers and wet zones
• Kitchen splashbacks
• Outdoor entertaining areas
Cheapestiles tip: If you are using porcelain tiles, concrete-look tiles, or terrazzo styles, sealing the grout can help keep everything looking sharp for longer. It is one small step that pays off big time.
Common Grouting Mistakes to Avoid
Grout is not glamorous, but it deserves respect. Treat it well, and it will hold your tiles together for years.
Here are a few things not to do:
• Adding too much water when mixing
• Grouting before the adhesive has cured
• Using too much water when cleaning
• Choosing grout colour at the last minute
• Rushing the whole process
Choosing the Right Grout for Your Tiles.
Different tiles need slightly different approaches. Mosaic tiles often require finer grout for narrow joints.
Large-format tiles need precision because thinner joints leave less room for error. If you are working with marble-look tiles, Moroccan patterns, or textured finishes, take the time to test your grout colour choice. It can completely change the feel of the space.
In bathrooms, moisture resistance is key. In kitchens, stain resistance matters more. For outdoor tiles, durability is a must.
Grout colour is also a design decision. It can:
• Blend tiles for a seamless look
• Highlight patterns and shapes
• Soften bold tiles
• Add contrast to simple layouts
Cheapestiles stocks a wide range of grout options to suit bathrooms, kitchens and outdoor areas. That means you can match performance and style without stretching the budget.
How Long Before You Can Use the Area
After grouting, give it adequate time to cure before using the area. Light foot traffic can be fine after 24 hours, but always check the product instructions.
Showers and wet areas need longer to dry before being exposed to water. Jumping in too early can undo all your careful work.
Let it set properly, and your tiles will stay locked in for the long run.
Grouting Is the Final Touch That Makes It All Come Together
Knowing how to grout tiles properly turns a good tiling job into a great one. With the right tools, a bit of patience and quality grout, you can achieve a clean, professional finish without paying someone else to do it. If you need help choosing grout for your next bathroom, kitchen or outdoor project, the team at Cheapestiles is ready to help.
We stock affordable grout solutions and tiles to suit every style and budget, from marble look to concrete and textured finishes.
Call 02 9790 4273 or email info@cheapestiles.com.au to chat to a Cheapestiles expert today!
TL;DR
How to Grout Tiles in 7 Steps:
- Cure: Wait 24+ hours for tile adhesive to set.
- Clean: Remove spacers and debris from joints.
- Mix: Combine grout and water to a peanut butter consistency.
- Apply: Press grout into joints using a rubber float at a diagonal angle.
- Wipe: Remove excess grout with a damp sponge after 10–20 minutes.
- Buff: Use a dry cloth to clean the “haze” once the surface is dry.
- Seal: Apply sealer to cement-based grout to prevent stains and moisture.
Still not sure how many tiles you need?
Use our free tile calculator to get an instant estimate in square metres and then add a 10% buffer for offcuts, layout changes or sneaky mistakes. Got an oddly shaped room or complex layout? Give us a call. We’re happy to walk you through it. Call 02 9790 4273 or email info@cheapestiles.com.au and let’s get your tile project squared away.