Cleaning Limestone Archives - North West London Tile Doctor

Weathered Limestone Patio and Steps Restored in Wembley

Here we have a Limestone garden patio and set of steps at a property in Wembley which had become heavily affected by lichen, mould and general outdoor soiling. The stone was in good physical condition but had spent the winter in a shaded position where it slowly turned green. The patio had lost its original appearance and the owner was keen to make use of it again and so I was asked to make it presentable again.

External Limestone Patio and Steps Before Cleaning Wembley

It was clear that the Limestone needed a thorough deep clean and then sealing to protect it going forward so I worked out a detailed quote for its renovation which would take two of our technicians two days to compete. Fortunately, we were in the middle of a heat wave at the time so I wasn’t worried about rain interrupting the work.

Cleaning Limestone Patio and Steps

The first stage was to treat the Limestone with Tile Doctor Nanotech HBU remover which would tackle the mould and lichen. HBU stands for Heavy Build-Up and left to dwell on the surface for approximately 15 minutes to break down the organic growth before being scrubbed in. This was mostly done by hand due to the location of the capping stone and steps. The area was then rinsed with fresh water and the resulting slurry and soiling removed using a wet vacuum.

Next, a dilution of Tile Doctor Pro-Clean was applied and worked into the Limestone using a slow-speed orbital machine fitted with fine burnishing pads. This provided a deeper clean, removing the ingrained dirt and organic staining without being overly aggressive on the limestone.

After cleaning, the stone was thoroughly wet vacuumed and rinsed with fresh water before being left to dry in preparation for sealing.

Sealing Garden Limestone

Once the Limestone had been allowed to dry overnight, it was sealed with two applications of Tile Doctor Ultra-Seal. This helped protect the porous stone from future staining and makes the patio and steps easier to maintain. This product is an invisible impregnator that soaks into the stone, occupying the pores and ensuring dirt remains on the surface where it can be easily cleaned away.

External Limestone Patio and Steps After Renovation Wembley

Apologies for the photographs only some of these had to be taken from within the property itself to get the best angle.

Limestone Patio Aftercare

To help maintain the appearance of the restored limestone, the customer was left with a bottle of Tile Doctor Neutral Tile Cleaner, together with cleaning and maintenance guidelines.

The combination of the correct cleaning method, tried and tested Tile Doctor products and professional equipment has restored the appearance of this shaded limestone patio and its steps, giving the customer a much cleaner and better-protected outdoor space.

Professional Restoration of a Limestone Terraced Patio and Steps in Northwest London

Black Limestone Kitchen Floor Renovation Northolt

Altering and Renovating a Black Limestone Kitchen Floor in Northolt

The photographs below are from a 1900’s cottage in Northolt which had a black limestone floor installed in the kitchen. The owners had recently had a new kitchen installed which had a slightly different layout to the original thereby leaving previously covered areas exposed. The client wanted the tiles to be cleaned, and re-sealed and two new tiles installed to cover the newly exposed floor.

Black Limestone Kitchen Floor Before Renovation Northolt

As usual I went over to the property to survey the existing floor and understand the scope of the work required. From this I was able to work out a quote which was accepted and a date agreed for our return.

Cleaning a Black Limestone Tiled Kitchen Floor

Before starting work all the new kitchen fronts were wrapped in a plastic sheet to protect them from splashing and the plinths (kickboards) under the kitchen removed.

Work then started by addressing the tiling changes which basically involved laying two new pieces of matching black Limestone tile we had procured earlier. The Limestone was then cut to shape and fitted into the newly exposed area of floor with a rapid set adhesive. The floor was then left to set before being grouted in using a matching grout.

Black Limestone Kitchen Floor During Repair Northolt

Black Limestone Kitchen Floor During Cleaning Northolt

Once the grout had set, focus moved onto cleaning the tiles and stripping off any old sealer that was present using a strong dilution of Tile Doctor Pro-Clean. The kitchen floor was too small to introduce a large buffing machine for this work so after leaving the product to soak in for ten minutes the limestone tile and grout were scrubbed by hand.

Once done, the floor was rinsed with water and the dirty cleaning solution extracted with a wet vacuum. The floor was then inspected and any stubborn areas spot cleaned using the same process. When I was satisfied the floor was as clean as it could be a heat gun was applied to dry the tiles.

Sealing a Black Limestone Tiled Kitchen

Once I was happy the floor was dry it was sealed using a light application of Tile Doctor Stone Oil to enhance the rich dark colour of the limestone. After further drying the floor was sealed with two applications of Tile Doctor Colour Grow to seal in the stone oil and give extra protection and a uniform appearance.

Black Limestone Kitchen Floor During Sealing Northolt

The work completely transformed the kitchen much to the delight of the owner who left the following feedback:

“Great, professional, friendly, efficient service. Cleaned and re-sealed our black limestone kitchen floor tiles, plus fitting a spare. Great job. Would definitely recommend.”

Black Limestone Kitchen Floor After Renovation Northolt

Before leaving we discussed aftercare cleaning for which I recommended Tile Doctor Neutral Tile Cleaner which is designed for cleaning sealed surfaces.

Black Limestone Kitchen Floor After Renovation Northolt

Professional Restoration of a Black Slate Tiled Kitchen in Northwest London

Altering and Renovating a Black Limestone Kitchen Floor in Northolt Read More »