Slate Tile Cleaning

Welcome to my Work History archive where you will find detailed examples of the cleaning and renovation of Slate flooring carried out in Central London

Cleaning and Renovating Slate Floors

Slate is a very popular floor and wall tile due to its low porosity; there are many varieties and textures of Slate available as such Tile Doctor has spent many years researching the best cleaning and sealing methods and products. The semi-riven tile is particularly easier to maintain compared to the rough textured Slate commonly available due to its cheaper quarrying cost.

Porosity however small, is the main issue when maintaining Stone floors as dirt can easily become trapped in the pores and once that happens it becomes very difficult to clean. The solution is to prevent the ingress of dirt in the stone by applying a sealer such as Tile Doctor Seal and Go which works very well on Slate. However sealers do wear down with use and the application of unsuitable cleaning products, and so unless regularly maintained the floor will need to be stripped, deep cleaned and then resealed again every three to five years.

Below you will find detailed examples of work we have carried out in the past, it should give you some idea of what’s involved and what can be achieved with the right techniques and products.


Limsescale Stained Slate Shower Renovation Bayswater W2

Limescale Stained Slate Tiled Shower renovated in Bayswater W2

My client had rented their property in Bayswater out while they were working abroad for a year or so; on their return they discovered the tenants had not looked after it properly and had allowed lots of limescale to build up on the Slate shower tiles. The staining was so bad It was putting them off using the shower and they were very disappointed that the tenants had not taken more care.

Limescale Stained Slate Shower Before Renovation Bayswater W2

London is a hard water area which basically means the water contains a high level of calcium and magnesium which is results in limescale deposits. Thankfully Tile Doctor has several solutions for this problem including the use of acidic cleaning products. You do have to be careful with these however as some types of stone can be etched by these making the problem worse.

Limescale Stained Slate Shower Before Renovation Bayswater W2

I made an initial visit to work out the best approach to resolve the Limescale and provided a written quote to do the work. The quote was accepted and a date arranged to carry out the work.

Removing Limescale from Slate Shower Tiles

The first step in the renovation was to decant a strong dilution of Tile Doctor Remove and Go into a spray bottle and spray it onto the shower wall. Combining the product with air makes it stick better to vertical surfaces where it can dwell and break down old sealers and general dirt. This was worked into the tile using a stiff brush and then rinsed off.

Next Tile Doctor Acid Gel was applied to the tiles and worked in with a stiff brush to remove the ingrained limescale. Gel products are ideal for cleaning wall tiles as they stick to the tiles easily. Once done the slurry was rinsed off again.

At this point the stone was looking clean and free of limescale and old sealers but was still looking very unappealing. To bring back the appearance of the slate it needed resurfacing with a set of coarse diamond pads. To do this I started with the application of a very coarse 6-inch 100-grit pad fitted to a handheld buffer and lubricated with water. After rinsing away the slurry that had been generated, I changed pads to the 200-grit and repeated the process, finally moving onto a 400-grit pad. One last rinse and the tiles were left to dry out.

Sealing Slate Shower Tiles

Once the tiles were all dried out, I applied a single coat of Tile Doctor X-Tra Seal. This is a breathable impregnating sealer that soaks into the stone and being oil based adds colour and improves appearance. It’s a good idea to seal Slate used in a shower as it adds water repellency and stain protection. One coat revived the colour of the tiles, in this instance a second coat was not needed, but if applied it would have added a subtle sheen finish.

Limescale Stained Slate Shower After Renovation Bayswater W2

There was a lot of work to do, however, I managed to complete the whole area in a single but very long day. Once completed however the slate tiles looked transformed so it was well worth the effort. Certainly, my client was very happy with the work we had completed and now felt happy to use the shower again!

For aftercare cleaning it’s important not to use strong chemical cleaning products on sealed stone as they will strip off the sealer. So, I recommended the use of Tile Doctor Aqua-Pro for cleaning. This tile cleaning product is pH neutral so mild enough to use every day which will help keep the limescale and grime at bay. It has a pleasant fragrance and with a trigger spray it is easy to use for both all the family and indeed the new tenants if they go down this route again.

 

Professional Restoration of Limescale Stained Slate Shower Tiles in London

Limescale Stained Slate Tiled Shower renovated in Bayswater W2 Read More »

Slate Wall Tiled Bathroom Restoration Maida Vale

Slate Shower Wall Refurbished in Maida Vale W9 London

The photographs below are from a bathroom in Maida Vale W9 which had a lovely Slate tiled wall over a bath with shower. Unfortunately, the Slate tiles had been ruined by the use of harsh cleaning chemicals in an attempt to remove the limescale caused by hard water. The slate had now lost all its natural colour and looked completely washed out. The property had recently changed hands and the new owner was keen to have it renovated.

Slate Shower Before Refurb Maida Vale London

I went over to take a look and work out a solution, this in itself is a lot trickier these days with all the COVID precautions we need to take when working in someone’s house. It was clear that a strong acidic limescale remover had been used on the slate and this had etched the stone, leached all the natural oils away and generally ruined its appearance.

Fortunately, we have a solution for this (see below) and after conducting a small test I was able to confirm the problem could be resolved and gave them a quote which included a day’s labour, abrasive pads, stone oil and sealer. Our quote was gratefully accepted, and we booked a time in to carry out the work.

Cleaning a Slate Tiled Bathroom

I returned to the property and I set about burnishing the slate wall tiles using a very coarse 200-grit six-inch burnishing pad fitted to a handheld buffing machine. This process resurfaces the stone slightly to remove the etching caused by the limescale remover. I used a medium dilution of Tile Doctor Grout Clean-up to lubricate the process and to remove the remaining limescale. Once done the slurry that is generated is rinsed off with more water. In a bathroom, it is easy the slurry can just be drained away. In other areas we would use a wet vacuum.

After the 200-grit pad the surface of the Slate was further refined using a 400-grit pad and then an 800-grit pad, this time only using water and giving the stone a thorough rinse after each pad to remove the soil.

The slate was then left to dry off over lunch and given more encouragement with a heat gun afterwards so I could move onto the next step. This involved applying a coat of Tile Doctor Stone Oil which puts back the natural oils back into the stone improving its appearance.

Sealing a Slate Tiled Bathroom

Once the Stone Oil had fully dried, I moved onto sealing for which I applied two coats of Tile Doctor Ultra-Seal; this is penetrating sealer that soaks into the stone to provide maximum stain protection without changing the colour of the stone. It is also an excellent grout sealer which is a bonus.

Slate Shower After Refurb Maida Vale London

Before leaving I talked the client about how best to maintain the Slate and left them a complimentary bottle of Tile Doctor Aqua Pro tile cleaner which will help keep the limescale at bay. It is gentle enough to use every day but will help prevent the previous build-up and unlike the previous products used will not damage the newly applied sealer.

 

Professional Restoration of a Slate Tiled Bathroom in Central London

Slate Shower Wall Refurbished in Maida Vale W9 London Read More »

Semi Riven Slate Floor before and after

Slate Tiled Wet Room floor in Ealing

This was a slate floor in a wet room in a house in Ealing W5. The black semi-riven slate had originally been sealed by the tiler on installation but had never looked how the customer wanted it to.

Cleaning Semi-Riven Slate Tiles

To strip off what was left of the old sealer we used Tile Doctor Remove and Go leaving it to soak into the floor for a while before working it in with a rotary machine fitted with a black buffing pad. The solution was then removed using a wet and dry Vacuum and the floor washed down with clean water. This work removed any remaining sealer but we still needed to give the floor a deep clean and so the whole process was repeated this time using Tile Doctor Pro-Clean which is an effective heavy duty alkaline cleaning product ideal for cleaning up natural stone floors and grout. After we gave the floor a thorough rinse to remove any cleaning products and neutralise the floor ready for sealing, last step was to remove the water from the floor using the wet vacuum again and leave it to dry out overnight.

Semi Riven Slate Floor Before

Sealing Semi-Riven Slate Tiles

The next way came back and sealed the floor using two coats of Tile Doctor Colour Grow as you can see from the photographs did an excellent job lifting the colour out of the tile.

Semi Riven Slate Floor After
The customer was very pleased to have a well-sealed black slate with a slight sheen instead of the dull-looking grey floor she had had before.

Semi Riven Slate Tiled Bathroom floor Cleaned and Sealed in London

Slate Tiled Wet Room floor in Ealing Read More »

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