Grout is a critical element in any tiled surface, but over time, it can deteriorate. It can become stained, cracked, or even completely fall out. If your grout lines look worse for wear, you may wonder if it’s possible to regrout over the old grout. You can, and most homeowners can tackle this task themselves with patience and the right tools.
In this guide, we’ll walk you through the steps of regrouting over existing grout, explain how to prepare for the job, and give you helpful tips to ensure a smooth and durable finish. Whether you are regrouting a bathroom floor or kitchen tiles, this simple process can breathe new life into your tiled surfaces.
Let’s get straight to the point.
Regrouting is a simple DIY project that can restore the look and functionality of your tiled surfaces. Here’s a quick overview of the process:
- Prepare the Area: Clean the tiles and remove old grout using a grout saw or removal tool. Vacuum up any dust.
- Mix New Grout: Follow the instructions on the grout package to mix the new grout to the right consistency.
- Apply Grout: Use a grout float to fill the joints between tiles with new grout. Smooth and scrape off any excess.
- Clean Tiles: Wipe away excess grout with a damp sponge, careful not to disturb the grout lines.
- Cure the Grout: Allow the grout to set and cure for at least 24 hours, ideally a full week, before using the area.
For best results, consider the right grout type (cement, epoxy, or urethane), depending on your needs, and be patient throughout the process. Hiring a professional can ensure a perfect finish if you’re unsure or need assistance.
Why Is Regrouting Necessary?
Before diving into the how-to, it’s important to understand why regrouting is necessary. Grout, while durable, is not impervious to damage. Over time, moisture, dirt, and even natural wear and tear can cause grout to crack, stain, or degrade. When grout starts to deteriorate, it can compromise the integrity of the tiles, allowing water to seep behind them, potentially leading to mould growth or tile displacement.
Regrouting allows you to restore the appearance and function of your tiled surfaces without needing a full tile replacement. It’s a cost-effective way to refresh your bathroom, kitchen, or other tiled area.
Tools And Materials You’ll Need
Before you start the regrouting process, make sure you have the following tools and materials:
- Grout saw or grout removal tool
- Grout float
- New grout (cement-based, epoxy, or urethane, depending on your preference)
- Mask and safety glasses
- Sponge
- Bucket of water
- Damp cloth
- Vacuum cleaner
- Tile cleaning solution
- Gloves
Step 1: Preparing The Area
Cleaning The Tiles And Old Grout
The first step in regrouting is to clean the surface thoroughly. This involves removing dirt, dust, or grime from the tiles and grout. Use a tile cleaning solution to scrub the tiles and a grout cleaner for the grout lines. A clean surface is essential to ensuring that the new grout bonds properly.
Once the tiles are clean, use a grout saw or a specialised grout removal tool to remove the old grout. You don’t need to remove all the grout; it’s just enough to allow the new grout to adhere. Be careful not to damage the tiles during this process. Work slowly and steadily, focusing on the grout lines between the tiles.
Safety Tip: During this stage, wear a mask and safety glasses to protect yourself from dust and debris.
Removing Loose Grout
Once the grout has been sufficiently chipped away, use a vacuum cleaner to remove the loose dust and particles from the area. This will ensure no debris is left behind, which could affect the new grout’s adhesion.
Step 2: Mixing The New Grout
The next step is to mix the new grout. Most grout products come with specific instructions on how to mix them. Follow these instructions carefully to ensure that the grout reaches the correct consistency. It’s important not to add too much water, which can weaken the grout. Mix the grout thoroughly until it forms a smooth, spreadable paste.
If you’re using cement-based grout, it’s relatively straightforward to mix. However, if you’re working with epoxy or urethane grout, be aware that these materials often come in two parts (the grout and the hardener) that must be mixed.
Tip: Mix only the grout you need for a single section of the project to prevent it from drying out before you can use it.
Step 3: Applying The Grout
Now, it’s time to apply the new grout. Use a grout float to spread the grout evenly into the joints between the tiles. Hold the float at a 45-degree angle and push the grout into the gaps, filling them. Work in small sections, as grout can set quickly.
Once the grout is in place, use the edge of the grout float to scrape off any excess grout. Make sure the grout is applied smoothly and evenly.
Tip: Avoid leaving too much excess grout on the tiles to achieve a neat finish. This will make cleaning up easier later.
Step 4: Cleaning Up Excess Grout
After you’ve applied the grout, it’s time to clean up the tiles. Use a damp sponge to gently wipe away the excess grout from the surface of the tiles. Be sure not to disturb the grout in the joints as you wipe.
Wipe the tiles in a circular motion, rinsing the sponge frequently in clean water. This will help prevent the grout from setting on the surface and leaving a haze.
Tip: Once the grout is set, use a clean, dry cloth to remove any remaining grout haze on the tiles.
Step 5: Smoothing The Grout Joints
As The Grout Begins To Set, Use A Damp Sponge To Smooth The Grout joints. This will help create a clean, uniform look and ensure the grout lines are even.
If necessary, use a grout tool to shape the grout lines and make them consistent in size. This step is important for achieving a professional-looking finish.
Step 6: Curing The Grout
After the grout has been applied and cleaned, it’s important to allow it to cure properly. Grout typically takes around 24 hours to dry, but for best results, wait a full week before exposing it to water or heavy use.
During this curing period, avoid getting the grout wet or disturbing the newly set grout lines. This will ensure that the grout hardens correctly and lasts longer.
Tip: If you’re working in a damp area like a bathroom, ensure good ventilation during drying to help the grout cure faster.
How To Regrout With Epoxy Grout?
If you choose to use epoxy grout for your regrouting project, remember that it’s more challenging than regular cement-based grout. Epoxy grout is more durable and resistant to stains, making it a good choice for high-moisture areas like bathrooms and kitchens.
Follow the above steps to regrout with epoxy grout, but mix the grout and hardener correctly. Epoxy grout can form a haze that’s difficult to remove, so be extra cautious when cleaning up excess grout.
Advantages Of Epoxy Grout
- Durability: Epoxy grout is highly resistant to cracking and staining.
- Water Resistance: It’s ideal for areas exposed to moisture, such as bathrooms and kitchens.
- Low Maintenance: Once applied, it requires less upkeep than cement-based grout.
Regrouting Tips
To ensure your regrouting project is a success, here are a few additional tips:
- Be patient: Take your time during the grout removal and application process. Rushing can lead to mistakes and poor results.
- Use the right grout: Different types of grout are suited to different applications. Cement grout is the most common, but epoxy or urethane grout may be better for high-moisture areas.
- Practice before starting: If you’ve never regrouted before, try practising on a small area first to get a feel for the process.
- Consider hiring a professional: If you’re unsure about the regrouting process or don’t have the time, consider hiring a professional to do the job. They’ll ensure the grout is applied properly and has a long-lasting finish.
Conclusion
Regrouting is a relatively straightforward DIY project that can greatly improve the appearance and longevity of your tiled surfaces. By following these steps and using the right materials, you can achieve a smooth, durable grout finish that will make your tiles look as good as new.
Whether you tackle the job yourself or hire a professional, regrouting is a cost-effective way to enhance the look and feel of your home. With patience, preparation, and the right tools, you’ll have beautifully grouted tiles that will last for years.
FAQs About Regrouting Tiles
Can I Regrout Without Removing Old Grout?
While it’s not always necessary to remove all of the old grout, you must remove enough to allow the new grout to adhere properly. You can use a grout saw or removal tool to clean out some old grout, creating a clean surface for the new grout to bond to.
How Long Does It Take For Grout To Dry Completely?
Grout typically takes 24 hours to set, but it’s best to wait up to one week for it to fully cure before exposing it to water or heavy use. Make sure the area is dry and well-ventilated to aid the curing process.
Can I Use Epoxy Grout Over Cement Grout?
Yes, you can apply epoxy grout over existing cement grout, as epoxy is strong enough to adhere directly to the old grout. However, you will need the proper grout removal tools to clean and prepare the surface.
What Grout Type Is Best For Regrouting?
The best grout type depends on your specific needs:
- Cement-based grout is the most common and is suitable for most residential tiling jobs.
- Epoxy grout is stronger and more resistant to stains, making it ideal for high-moisture areas like bathrooms and kitchens.
- Urethane grout is pre-mixed and easier to apply but requires longer curing times.
