Slate Tile Cleaning

A client from the village of Burwell near Cambridge had recently moved into a property with a Slate tiled floor and was unhappy with its condition as it never looked clean. After discussing the problem over the phone, it was clear to me that the sealed has worn off and dirt was now lodged deeply in the pores of the stone making it difficult to clean.

The tiles were installed throughout much of the ground floor so there were several areas including the kitchen and living room that needed attention. Apart from the ingrained dirt the Slate floor was in good shape and just needed a deep clean and fresh sealer applied to renovate it.

I created a quote for a restorative clean and seal which was accepted, and a date agreed for the work to begin which should take two days, one to clean and then one to seal.

Deep Cleaning the Slate Tiled Floor

The first step to restore the stone was to remove what was left of the existing sealer. This is necessary to achieve a consistent finish as the wear on a sealer is always uneven due as the busiest areas wearing down first. To do this I sprayed each area of flooring with a dilution of Tile Doctor Remove and Go which is a coatings remover that is ideal for removing sealers, it’s also a powerful cleaning agent.

The Remove and Go was left to soak into the Slate tile for ten minutes before being worked in with a rotary machine fitted with a black scrubbing pad. The grout lines were also scrubbed at this point, this needs to be done manually with a stiff grout brush as the pads struggle to reach into the recesses of the grout lines. The resultant slurry was then rinsed away and extracted with a wet vacuum.

Last step before finishing for the day was to give the floor an acid wash using Tile Doctor Grout Clean-up. This cleans up the tiles by removing old grout smears that happen during installation and further cleans the stone.

After a final rinse and extraction with the wet vacuum the floor was left overnight to dry off.

Sealing Slate Floor Tiles

The next day I returned to apply a protective sealer checking first that the stone was dry using a moisture meter. We don’t recommend applying a sealer to a damp floor as this can lead to a patchy result.

Once satisfied the Slate was dry, multiple coats of Tile Doctor Seal and Go were applied. This is a water-based sealer (so no smell) that adds good stain protection and adds a nice subtle sheen to the tile which really enhanced the colours in the slate.

The Slate floor was completely transformed by the work and my client was so impressed with the result they asked me to return and work my magic on their Travertine tiled bathroom.

For aftercare cleaning of sealed Slate floors, I recommend the use of Tile Doctor Neutral Tile Cleaner which is a mild but effective tile cleaner. You need to be careful when choosing a cleaning product for sealed floors as many products are simply to strong and will erode the sealer prematurely.

Professional Renovation of a Slate Tiled floor in Cambridgeshire