Limestone bathroom tiles in The Angel Islington

Here we have a luxury bathroom tiled in Limestone at an apartment in The Angel in Islington. I was contacted by the letting agent who discovered the damage when the tenant moved out, although they were unsure of the cause I immediately recognised it as acid damage from the use of acidic limescale removers. These products are simply too strong for use on limestone which is acid sensitive and results in etching as shown in the photos.

The agent had new tenant’s looking to move in, but they wanted to sort the acid damage out beforehand. The etching can be difficult to remove so to make sure a good result could be achieved I did a test clean on one tile of the bath panels. The result was great, so I gave a quote which was accepted.

Given the fast nature of the London rental market there was very limited time between the old tenants moving out and the new in. However, I was able to collect the keys from the agent allowing me to squeeze the job in around my other projects.

Removing Acid Etching from Limestone Tiling

To remove the etching I had to burnish and literally resurface the limestone tiles using a set of diamond encrusted burnishing pads. Naturally I can’t use large floor pads on wall tiling however Tile Doctor also do these pads in 6-inch which fit a handheld polishing machine.

Work started with the application of a coarse 400-grit pad using water for lubrication, the soiling is then wiped away and the process repeated with an 800 and 1500 grit pads using the same process. These pads remove the etching and build up the polish on the Limestone.

Some of the staining was very deep and so to get a good result I had to use coarser 120 and 200 grit diamond blocks first. These are small hand-held blocks available in different grits that can get into awkward spaces. Once all of this was done, I rinsed the tiles down and dried them.

The last step in the burnishing process was to apply a final polish with an extra fine 3000-grit pad which adds a nice subtle polish to the stone.

Sealing Limestone Bathroom Tiling

To finish, the Limestone was sealed using Tile Doctor X-Tra Seal which is a modern oil-based impregnating sealer that enhances the colour of dark limestone and will make cleaning easier going forward.

For aftercare cleaning I recommended supplying any future tenant with Tile Doctor Aqua-Pro which is a day-to-day spray cleaner which can be used in the shower to prevent the build-up of limescale.

 

Professional Restoration of a Limestone Tiled Bathroom in North London