Removing Mould from Limestone Shower Tiling

I was asked to look at renovating a shower cubicle at a property in in Manchester city centre that had been clad in White Limestone tiles. I understood the bathroom had been installed 12 years prior, but now the tiles were looking grubby, mouldy and dirty.

Limestone Tiled Shower Cubicle Before Mould Removal Manchester City Centre Limestone Tiled Shower Cubicle Before Mould Removal Manchester City Centre

The client had lived at the property for the last two years and in an attempt to resolve the problems had used a few different household products such as flash and bleach, they had tried everything, and nothing had helped. I suspected that these strong acidic cleaners had actually made the problem worse by stripping off what was left of the sealer that was protecting the Limestone, allowing dirt to become ingrained in the stone.

I visited the property and ran a few cleaning tests in the shower cubicle with Tile Doctor products. This allows me to see which product will have the best results and gives the customer confidence that we can resolve their issues. The results were immediate, they could see the difference and they were happy to accept my quote and agree a date for my return to complete the work.

Removing Mould from a White Limestone Tiled Shower Cubicle

I arrived several weeks later and made a start. The tiles were scrubbed by hand with a strong dilution of Tile Doctor Remove and Go with excellent results. This product is designed to remove coatings and sealers, and in this case, it did a great job of drawing out the ingrained stains and dirt build-up. This removed what was left of the sealer and took off most of the dirt and mould. The Limestone tiles and grout were then rinsed with water to remove the soil.

Next I needed to restore the smooth surface of the limestone which had been etched by the use of strong acidic cleaning products. To do this I used a set of six-inch diamond burnishing pads attached to a hand buffer to hone and restore the stone.

I then dried the shower tiles and grout with a heat gun checking the moisture levels with damp meter until I was satisfied it was completely dry.

Sealing a Limestone Tiled Shower Cubicle

The last step was to re-seal the Limestone and Grout using a couple of coats of Tile Doctor Colour Grow. This is natural coloured intensifying sealer which provides durable protection to the surface allowing it to breathe and enhancing the colours.

The Customer was amazed with the difference and left the following feedback!

“Kamila was friendly, professional and kept me informed about what to expect before she took on the job and during the tile cleaning. The tiles look absolutely amazing after her work – I feel as though I have a brand new bathroom! Kamila also gave me helpful tips on looking after limestone tiles. I can’t recommend her highly enough.”

Limestone Tiled Shower Cubicle After Mould Removal Manchester City Centre Limestone Tiled Shower Cubicle After Mould Removal Manchester City Centre

For future cleaning I recommended the use of Tile Doctor Aqua-Pro which is a pH neutral shower tile cleaner designed for use on sealed surfaces. Most cleaning products you find in supermarkets are overly strong and will erode the sealer prematurely, so when choosing a cleaning product always read the label and make sure it’s safe to use on Sealed Stone tiles.

 

Source: Limestone Tile Cleaning and Renovation Service in Manchester

Renovating Moleanos Limestone Kitchen Tiles in Leeds

Moleanos Limestone is a very difficult stone to work with due to its’ porous chalky nature and needs to be sealed to prevent dirt accumulating in the stone. Without a sealer in place dirt builds up in the pores leaving it looking dirty and this is exacerbated in the case of White Moleanos Limestone which really shows up the dirt. I mention this as I was asked to visit a property in Leeds which had White Moleanos Limestone installed in the Kitchen and was now suffering this exact problem with the client unable to get it clean. The grout was also quite badly discoloured.

White Moleanos Limestone Kitchen Floor Leeds Before Cleaning White Moleanos Limestone Kitchen Floor Leeds Before Cleaning

I visited the property to survey the floor and quote for renovating the stone. I ran some tests and could see that as suspected the original sealer had broken down leaving the stone vulnerable. Sealers typically last around three to five years depending on use, but this can be significantly reduced if a strong household cleaning product is used to clean the floor.

Without a seal in place dirt was able to get into the porous stone and once ingrained it can be very difficult to remove without the right products and equipment. I completed a demonstration clean on a small area to show how the floor should look and the result was immediate. Confident I was able to get the floor clean my client booked me in and we agreed a date to complete the work.

Cleaning White Moleanos Limestone Kitchen Tiles

To restore the appearance of the stone I used a set of Tile Doctors Burnishing Pads which are encrusted with industrial diamonds and are used to hone the stone, remove dirt and restore its appearance. This is a slow steady process and involves working through the different grades of burnishing pads from coarse to very fine. The pads are applied with a small amount of water to lubricate and the soil generated by the process is extracted with a wet vacuum afterwards, to keep the mess to a minimum.

All the grout was cleaned by hand using a strong dilution of Tile Doctor Pro-Clean which is scrubbed into the grout lines by hand with a stiff brush. For best results I leave it to dwell for ten minutes before scrubbing, this allows it more time to break down and lift the dirt from the cementitious grout lines.

After cleaning I left the floor to dry off fully overnight.

Sealing a Moleanos Limestone Tiled Kitchen Floor

The following morning, I returned to the property and checked the floor was dry using a moisture meter. This is always worth checking as applying a sealer to a damp floor can result in a patchy appearance.

I had discussed the effects of the different sealers suitable for use on Limestone and the client specified they were after a natural look that wasn’t over shiny. With this in mind I selected Tile Doctor Ultra Seal which is a penetrating sealer formulated to provide maximum stain protection and is especially recommended for use in kitchen areas. Ultra-seal doesn’t change the look of the stone which made it a nice match for the client’s needs, it’s also a good grout sealer and will ensure the grout looks cleaner for longer.

Three coats of Ultra-Seal where applied allowing each one to dry before applying the next. With the new sealer in place the stone is protected from ingrained dirt and would prove to be much easier to keep clean in future.

White Moleanos Limestone Kitchen Floor Leeds After Cleaning White Moleanos Limestone Kitchen Floor Leeds After Cleaning

The client was very pleased with the finished result and before leaving I recommended, they maintain the floor using Tile Doctor Stone Soap which is designed for the cleaning of polished stone.

 

Source: Moleanos Limestone Cleaning and Sealing Service in Leeds, North Yorkshire