Dealing With Stained Grout

Details below of a Grout colouring job I recently completed at a house in Morecambe. In this instance, the grout had become stained, and my client was no longer happy with it.

There are a number of reasons grout can lose its appearance including the build-up of mould in damp and unvented areas, staining from liquids accidentally spilt on the floor and surprisingly if you have a coloured grout it can lose its colour due to the bleach found in common types of household cleaning products. Grout contains lime which is acid-sensitive and will react to acidic cleaning products so for general cleaning do use a pH Neutral Cleaning product.

Grout Colouring Morecambe 1 Before Grout Colouring Morecambe 2 Before

To tackle the stained grout I first tried Tile Doctor Pro-Clean which can be used at different levels of concentration to increase its potency. In this case however when this grout dried it went back to being patchy so then the only answer was to restore its appearance using a Grout Colouring kit.

Grout Cleaning and Colouring

To form a better bond with the Grout Colourant I first treated the grout with a Tile Doctor Pre-Treat Cleaner, which is very slightly acidic and effectively etches the grout. If you have a particularly acid-sensitive stone tile (Limestone, for example), it is recommended to use Tile Doctor Oxy-Pro cleaner instead as this won’t upset the stone, yet still clean the Grout ready for colouring.

Once the Grout had dried (which is some cases can be several hours), I applied a thin coating of the Grout Colourant, as a thin coat dries quicker and provides a more even finish. A second coat was then added, before polishing off the excess from the edges of the tiles. After about half an hour the Grout Colourant was dry to the touch (at this stage you should be able to walk on the floor). Note that if you are Grout colouring a wall tile in a shower cubicle, it is best to leave the area for 24 hours before using the shower.

Grout Colouring Morecambe 2 After Grout Colouring Morecambe 2 After

As you can see from the photographs, the result was very effective, and needless to say my client was very happy with the rejuvenated appearance of her grout.
 
 
Source: Grout Stain Cleaning service in Lancashire

Grout Haze Removed from Sealed Sandstone Floor

It’s not that uncommon for newly installed tiled floors to suffer from grout haze. This occurs where builder or tiler fails to remove all the excess grout from the surface of the tile after installation. It’s not always immediately obvious as the grout has to dry before it shows up and if the tiles are sealed afterward the grout is trapped on the surface of the tile under the sealer which makes it even more difficult to remove. Not too long ago, I was called to address this exact problem experienced on my client’s Sandstone tiled floor at her house Wappenham, Northamptonshire.

This first picture shows how the builder had left the floor after sealing (note how all the tiles have a similar colour). Also shown in the picture is the equipment I use to remove grout haze should you wish to do this yourself.

Grout Haze Removal from Sandstone Wappenham

The second picture shows a close-up of the white grout haze deposits on the surface of the tile; the issue is probably difficult to appreciate if you haven’t come across this type of problem yourself however you will find ordinary household cleaning products will be largely ineffectual.

Grout Haze Removal from Sandstone Wappenham

Removing Sealer from Sandstone Floor Tiles

The third picture shows the first stage of the cleaning process which required stripping off the sealer so I could then treat the Grout Haze. To do this I applied Tile Doctor Remove & Go liberally across the floor, before agitating with a black stripping pad fitted to a rotary machine to break down the old surface sealer. I followed this by using a wet-vac machine to remove any soiled residue. As you can see in the next photograph, the colours are already starting to show.

Grout Haze Removal from Sandstone Wappenham

Treating Grout Haze on Sandstone

The next photo shows the second stage of the process, which involved the application of a new product in the Tile Doctor range called Acid Gel. The acid based formula is required to remove the cement/grout and being a gel you find the product remains in situ breaking down the grout haze instead of spreading around as you would expect with a liquid.

Grout Haze Removal from Sandstone Wappenham

I left the Acid Gel to dwell for approximately ten minutes, before mixing it with water and scrubbing it into the tiles with an industrial brush. This was followed by a second wet vacuum to ensure all the residue was removed. A turbo dryer was used on the treated area to speed up the drying process whilst I moved onto the next section.

Grout Haze Removal from Sandstone Wappenham Grout Haze Removal from Sandstone Wappenham

Sealing Sandstone Floor Tiles

Once the floor was fully dry I was able to seal it again with a couple of coats of Tile Doctor Colour Grow. Sealing will protect the floor from staining and make it easier to clean, additionally Colour Grow soaks into the pores of the stone protecting it from within and enhancing the natural colours of the stone in the process.

Grout Haze Removal from Sandstone Wappenham

The final photograph shows an area which has been fully sealed and the tiles restored to their natural beauty. I achieved this result across the entirety of the floor.
 
 
Source: Sandstone Floor Cleaning and Restoration service in Northamptonshire