Regrouting Bathroom Tiles: A Step-by-Step Guide for Beginners

Regrouting Bathroom Tiles: A Step-by-Step Guide for Beginners

Whether you are renovating an outdated bathroom or simply refreshing the tile grout, regrouting is a great DIY project to tackle. Regrouting isn't as difficult as it may seem, and it can make a huge difference in how your bathroom looks. This blog post will discuss step-by-step instructions on the best way to go about regrouting bathroom tiles yourself, so even if you're new to DIY projects it should be easy to follow. By following these steps and taking a few tips from me along the way, you'll be able to get your bathroom looking brand new in no time.

How to identify when it’s time to regrout

When it comes to regrouting bathroom tiles, there are a few tell-tale signs you should be on the lookout for. You’ll want to regrout your tiles if you notice the grout is beginning to deteriorate and lose its original colour. You might also see visible cracks in the grout, or crumbling away at every touch. Another indication that regrouting might be necessary is if water starts staying in certain areas after you finished cleaning - this means the seal around the tiles has been disrupted and needs regrouting. Be sure to take care of regrouting as soon as possible; if neglected, the damage may become worse over time.

How to choose the right type of tile grout

Identifying the right type of grout for regrouting bathroom tiles can be challenging: there are a variety of options with differing results depending on the desired outcome. Start by assessing the existing tiles to see what type and colour of grout appear to be currently used. Both cement-based and epoxy grouts are suitable for regrouting, but epoxy generally has greater longevity and is better for applications in wet areas such as bathrooms. Additionally, when regrouting with a different colour than originally installed, be sure to choose a colour that compliments the look of your tile. Ultimately, selecting and installing the appropriate tile grout will help ensure that regrouting your bathroom tiles produces the desired outcome while lasting longer over time.

Preparing your work area and taking safety precautions

regrouting tiles wearing white gloves

Regrouting bathroom tiles can be a simple way to give your bathroom a makeover, but it's important to properly prepare your work area and take safety precautions. Before regrouting, make sure to gather the proper supplies: grout, sealant, a grout saw or scraper and safety glasses. When regrouting the tiles, use caution so as not to damage existing tiles or any pipes in the wall. If you're regrouting with fresh grout, wear protective gloves and a face covering to avoid inhaling any particulates that may get stirred up.
Additionally, ensure you have adequate ventilation in your work area by opening windows for adequate airflow throughout the regrouting process. Having proper precautions in place will help ensure your regrouting project is successful and safe for everyone.

Removing old grout and cleaning the tiles

removing old tile grout with a tool

Regrouting your bathroom tiles is an excellent way to renovate a tiled surface, whether it's on floors or walls. The process starts with the tedious task of removing old grout from between the tiles. This can be accomplished with a combination of a multi-tool, hammer and chisel, hand scraper, grout saw and even good old-fashioned elbow grease! Once all the old grout is removed, you'll need to make sure that any remaining dirt and debris is cleaned off the tiles. A stiff brush will suffice and warm, soapy water should do the trick. After that, all that's left to do is regrout the tiles with fresh grout – giving your bathroom wall/floor its new life.

Applying new grout between tile joints

Now that the old grout has been removed and the tiles are cleaned, you're ready to begin the regrouting process. Begin by selecting a suitable type of grout for your surface; cement-based or epoxy grouts can both be used for bathroom surfaces. You'll also need to determine how much grout is required - this will depend on how much grout you are removing and how large the tiles next to each other are. Once you have determined how much grout is needed, mix it with water according to the manufacturer's instructions until it reaches a workable consistency - as if you were making a cake!

Once mixed, scoop out some of the new grout onto a grout float and begin applying it in between the tile joints. Make sure to check how deep the joints are and how wide you need to apply the grout so that it doesn't overflow. Use a damp sponge to wipe away any excess grout, then let the surface dry for about 15 minutes before applying more grout. Once all the grout is applied, leave it to dry for an hour or two before using a damp cloth to rub off any remaining residue and finish.

Sealing the grouted area for maximum durability

applying sealant with a brush to waterproof tile grout

The last step in the regrouting process is to seal the grouted area. This will help to keep your tile grout looking fresh and prevent water from seeping through cracks and causing damage. For maximum durability, it's recommended that you use a waterproof sealant formulated for bathroom floors and walls, such as an acrylic or silicone sealant. Before applying the sealant, make sure the grouted area is completely dry and free of dust by vacuuming up any loose particles with a soft brush attachment. You can then apply the sealant using a paintbrush or roller, taking care not to leave any excess behind so as not to leave streaks on your tiles. Once applied, leave the sealant to dry for at least 12 hours before using your newly regrouted bathroom tiles. 

Common problems when regrouting bathroom tiles

Regrouting a bathroom tile can be a tricky task, and if done incorrectly it can lead to some problems in your home. To avoid any major issues, make sure you have understood the regrouting process from start to finish before proceeding. Additionally, when applying fresh grout keep in mind how long it needs to set before wiping it down with a damp sponge. Too soon and it will be too wet, while leaving it to dry for too long can cause it to become crumbly and harder to remove. Finally, make sure you clean up any excess grout residue as quickly as possible so that it doesn’t leave any long-term damage on the tile surfaces

How to maintain your regrouted tiles

Proper maintenance of regrouted tiles is essential for lasting results. Good grout should help prevent water stagnation, which can cause mould, mildew and other damage to your tile and walls. To maintain regrouted tiles, be sure to clean them regularly with soap or grout cleaning solutions, fill in any crevices that have opened over time with more grout, and regularly reseal the grout if necessary.


Can you re-grout over the old grout?

Although regrouting over old grout is possible, it is important to do your research before proceeding with this project. Old grout may have been damaged or discoloured due to moisture, mould, or other factors. This means it is often best to replace the old grout with fresh grout to ensure a secure, long-lasting finish. 

How much grout do I need to remove before regrouting?

It is recommended that you remove at least 2-3mm of the old grout before applying fresh grout. To do this, you will need to use a grout rake or blade to scrape away the excess. Keep in mind how large your tiles are next to each other and how much space may be needed for new grout. 

Which colour grout should I use?

The colour of the grout you choose can make a huge difference in how your bathroom looks. Grout comes in a variety of colours, so it's important to decide which one will work best for your space and tile selection. If you're using white or pale coloured tiles, then light grey or beige grout is usually the best option as it won't create too stark of a contrast. Darker tiles, however, lend themselves better to darker grouts such as charcoal black or navy blue. Ultimately, it’s important to consider the feel that you are trying to create when regrouting your tiles.

How long should I wait after I’ve regrouted a shower?

Many homeowners who regrout their bathroom tiles are unsure of how long they should wait before they can actually use the regrouted shower. Generally, after regrouting, you should wait at least 24 hours before using it to ensure that the grout has been cured properly. However, for smaller regrouting projects that only involve a few tiles or a small area of the shower, waiting up to 12 hours after regrouting is recommended in order to allow adequate time for the grout to set. 


It is easy to see how grouting can be both tricky and time-consuming, but learning the process is incredibly rewarding. Once you have chosen the best grout for your kitchen or bathroom project, you will find yourself better prepared to get it done quickly and efficiently. As long as you diligently measure out the right consistency of water and grouts, use appropriate cloths when doing edges on any angle cuts, and set aside time to ensure everything dries properly before introducing moisture from showers or steam sources into your project area - you can achieve stunning results that last long after the initial hard work has been put in.

Find out more about maintaining and caring for tiles at our ‘How to Tile’ knowledge centre.

Back to the blog