To determine the most effective method for removing the staining, I conducted a test cleaning on a small section of the tiled floor. Since the floor lacked a damp-proof membrane (DPM), I opted to use low-moisture gel cleaning products. This approach was intended to prevent exacerbating any existing dampness in the floor, which could potentially lead to efflorescence and salt-related issues down the line. The test came out well and I was given the go ahead to clean and seal the Victorian floor tiles.

Several weeks later, I returned to begin restoring the entire floor. I started by applying Tile Doctor Oxy-Gel, an alkaline gel cleaner with low moisture content, as noted earlier.

The gel-based cleaning product was applied to the tiles in sections using a brush. It was left to soak for approximately fifteen minutes, allowing the formula time to break down ingrained dirt, carpet glue, paint, and cement residue. Next, the gel was scrubbed into each tile using a coarse 200-grit pad attached to a rotary floor buffer. Once the cleaning process was complete, the now-soiled gel solution was removed with a wet vacuum. Finally, the tiles were rinsed with water and dried using the wet vacuum.

To clean the tiles, the next step was to apply Tile Doctor Acid Gel directly with a brush. The acid gel served multiple purposes – it neutralized the pH of the tiles and dissolved any efflorescent salts present. After scrubbing the gel into the tiles using a black pad, the soiled gel was extracted with a wet vacuum. Finally, the tiles were rinsed with water and dried again using the wet vacuum.

After cleaning, the floor was left for a couple of days to allow it to fully dry. This also gave any potential efflorescence (salts) trapped in the tiles time to surface.

After returning, I used a damp meter to confirm the floor was dry, and inspected the tiles for efflorescence salts. Finding everything in order, I was able to proceed to the final stage of the renovation – applying a sealer to the tiles. This will enhance their appearance and protect them from staining.

Tile Doctor Colour Grow, a hard-wearing impregnating sealer, was chosen to seal the tiles. By soaking into the tile’s pores, Colour Grow prevents dirt from becoming ingrained, ensuring it remains on the surface for easy cleaning. Additionally, Colour Grow contains a color enhancer that lifts and accentuates the beautiful colors of the Victorian tiles, making them stand out.

The first coat of sealer was applied and left for 5 minutes before any excess sealer was removed using a dry, clean white cotton cloth. After 30 minutes, the second coat was applied and then removed with a cloth 5 minutes later. The tiles were allowed to dry for 2 hours before a water test was conducted to determine if an additional coat was needed.

After the work was complete we had a discussion about proper aftercare and cleaning. When cleaning a sealed tile floor, it’s critical to use the right product, as anything bleach-based will strip the sealer, leaving the floor vulnerable to embedded dirt. In this situation, I recommended and left a sample bottle of Tile Doctor Neutral Tile Cleaner, a mild yet effective cleaner specifically formulated for sealed floors.