It is highly important to have a strong understanding of how to grout tiles before starting out on your tiling project. After all, the most expensive, pristine and unique tiles can be ruined when they are grouted in an improper fashion.

Here at UK Pro Tiling Training, we are experts when it comes to how to grout tiles. Have a look at the following advice about how to grout tiles for a professional finish.

The Basics

When it comes to understanding how to grout tiles, grouting tiles is the same no matter what type of tile you are using and whether you are deciphering how to tile a wall or a floor.

You can buy grout that arrives in powder form and mix it with water yourself or you may want to buy grout that is pre-mixed and immediately ready to use. Whatever type of grout you choose, be sure that you’ve got enough grout to complete the job.

Of course, you’ll need to use a waterproof grout in areas where it is possible for water to get onto the tiles, however, so long as you ensure the joints between the tiles are filled thoroughly, your grout will sufficiently hold the tiles in place, whether you are using ceramic, porcelain, natural stone tiles or another tile material.

What you’ll need for grouting tiles

A trowel

Grout (either ready-mix or one you mix with water yourself)

A sponge

A small bucket for water

A cloth

A grout shaper

You’ll also need grout cleaner and a grout rake if you’re replacing old grout

How to grout

When it comes to tiling a wall, firstly, apply a minimum amount of grout to the front surface of the tiles with a trowel and spread it with a grout spreader. The best technique to use is to adopt long strokes that have an upwards and diagonal direction, making sure it spreads completely in between the joints of your tiles.

It is important that you aim to grout all the tile joints as fast as possible, as the grout will start to harden on application.

Once you have grouted all the tiles, wipe the tiles with a damp sponge or cloth to remove any excess grout, being careful not to wipe over the grout in the joints. Hard grout will be difficult to remove.

Once you have removed the excess grout and all the tiles are grouted in place, you can finish off the joints between the tiles by using a grout shaper.

The best method to adopt when using a grout scraper is to pull the grout shaper over the joints in one long movement. If you notice any small gaps become apparent in the joints, simply press in a small amount of extra grout with the end of your finger. Again, any excess grout will need to be wiped off with a damp sponge. In addition, a damp, soft cloth with wipe off any marks from where your grout has dried for a perfect, and professional, finish.

How to replace old grout

Replacing old grout can instantly make tiles look as good as new, as grout can often become stained due to excess water and soaps in bathrooms, and food spillages etc. in the kitchen.

Minor stains and bacterial growth can be removed using a grout cleaner. However, tougher stains and seriously worn grout will probably need replacing.

You can replace old grout by scraping out your existing grout with a grout rake, first working vertically, followed by working horizontally. Be careful not to scratch your tiles.

Make sure you remove all the grout, and then replace it with new grout, following the steps on how to grout tiles above if you are unsure of how to use grout.