This client had contacted us for help renovating their Flagstone hallway floor as nothing they did was helping to keep them clean. The problem with the tiles was due to the pores of the flagstone being ingrained with dirt and once this happens they are really difficult to clean effectively. This is why we always recommend stones floors are sealed after cleaning.
After a successful survey that included measuring background moisture levels and testing different products for stain removal I was able to work out the best process for cleaning the floor and a day to clean and seal the tiles was scheduled.
Deep Cleaning Flagstone Hallway Tiles
I’d established during my earlier testing that I would need a very strong cleaning product to get the floor clean and deal with the stubborn staining that was present and with that in mind I applied Tile Doctor NanoTech HBU. HBU stands for Heavy Build-Up and is a problem solving tile cleaner and stain remover that adds nano-sized abrasive particles to the mix. This was left to dwell on the floor for a few hours and additionally was covered with a plastic sheet to prevent it from drying out. I then gave the floor a scrub using a black scrubbing pad fitted to a rotary floor machine and a strong dilution of Tile Doctor Pro-Clean for good measure.
Once happy with the result the soiled cleaning solution was extracted using a wet vacuum and the floor given a thorough rinse with water to remove any trace of cleaning products. Again the wet vacuum was used to remove the fluids and extract as much moisture from the stone as possible. The floor was then left to dry out fully overnight assisted with a floor dryer to help accelerate the process.
Sealing a Flagstone Tiled Kitchen Floor
We came back the next day and tested the floor with a damp meter in a few different locations to make sure no dampness remained in the stone. The air mover had done its job and the Flagstones were dry so we proceeded to seal the floor with a couple of coats of Tile Doctor Colour Grow which penetrates into the pores of the stone protecting it from within and enhancing the natural colours of the stone.
It’s difficult to appreciate from the photographs but the customer was amazed at how much of a difference our process had made and at how much dirt we were able to remove. The flagstones were probably more then 100 years old and more aggressive machinery and cleaning products were the only things that would shift the old dirt. The fresh sealer will also ensure the floor is much easier to clean in future.