Deep Cleaning and Sealing Mouldy Shower Grout

Available in a variety of styles and designs Porcelain tiles are harder than normal Ceramic tiles and are known for their durability and water resistance, making them ideal for use in shower cubicles and bathrooms.

However, as I’m sure most people already know, shower tiles are not the easiest to keep clean and fresh. These tiles are exposed daily to a multitude of acidic soaps and shampoo dyes, and if proper precaution is not taken to rinse away the excess after using the shower, mould will grow very quickly on the grout.

This shower cubicle, constructed from Porcelain tiles, is a typical example of this. As you can see from the photo below, the mould problem was very apparent. I was asked by the property owner, who lives in Didcot, a railway town in South Oxfordshire, to refresh it after what must have been years of neglect. Here’s how I did it.

Porcelain Shower Before Renovation in Didcot

Cleaning a Porcelain Tiled Shower Cubicle

The first process in restoring this shower cubicle was to spray the walls with Tile Doctor Duo Clean, which is both a grout cleaner and a mould remover. I left it to dwell for 45 minutes, before proceeding to scrubbing into the grout with a stiff brush. I worked in sections, spraying more Duo Clean onto the tiles as I moved along the length of the walls.

Following this, I rinsed the entire cubicle with fresh water to remove any traces of chemicals and used my wet-vac machine to dry it quickly. The next process was to remove the old, mouldy silicone and replace it with fresh silicone.

Sealing a Porcelain Tiled Shower Cubicle

With the shower cubicle now fresh and clean, it was now time for me to seal the grout and tiles.

I did this using Tile Doctor Wall Grout Sealer Spray, which is a water-based grout sealer that prevents oil, water and acid-based contaminants – including soaps and shampoos – from spoiling the appearance and colour of grout. It does this while allowing for moisture vapour transmission.

Check out the photo below – you can see that after a short day’s work, the appearance of the cubicle has been completely transformed. The customer was very pleased with the result and the addition of the sealer will ensure it stays this way for some time to come.

Porcelain Shower After Renovation in Didcot

 
 
Source: Shower Tile Renovation Service in Oxfordshire

Sealing Bathroom Tiles to Prevent Staining and Mould

Having mould in your bathroom is never a desirable situation, especially in a family home with young children. Additionally, severe mould can cause a range of health issues, including respiratory problems, nasal congestion, and throat irritation, so it’s important to remove it as soon as possible.

I mention this as I was recently called out to a family home in Bedford recently because the parents were getting worried about the mould developing in the Ceramic tiled bathroom, especially on the lower tiles and silicon around the bath. Naturally, they wanted it to be removed as they didn’t want to expose their children to it, so a quote was issued and the work to restore the tiles was booked in for the following week.

Ceramic Tiled Bathroom Before Cleaning Bedford Town Centre Ceramic Tiled Bathroom Before Cleaning Bedford Town Centre

Cleaning and Sealing a Mouldy Ceramic Tiled Bathroom

Before starting the work, I covered the bathtub with dust sheets and towels to prevent any chemical spillages. Then, to begin, I applied Tile Doctor Mould Away which is specially formulated to removing mould and black spots from grout and silicone. This is quite a potent product, so it is advisable to wear protective gloves and goggles.
I sprayed the Mould Away on the entire area around the bath and shower unit, as well as the pedestal wash hand basin, before scrubbing it in by hand using a stiff brush. I left this to dwell while I started to cut out the old silicon from around the bath, and once this had been done, I rinsed the product off the tiles.

Next, I diluted a solution of Tile Doctor Grout Clean Up with water, this product contains concentrated phosphoric acid and is designed to remove grout haze, mineral deposits, and other smears. This solution was sprayed onto the worst-affected areas of the grout to remove any remaining soil deposits. I also gave the tiles a second rinse and, while the grout was drying, I finished cutting out and removing the old silicon.

Following this, I lightly dried all areas with a heat gun and sealed the grout with Tile Doctor Ultra-Seal, which is a natural-look, penetrating sealer deigned to provide maximum stain protection. Finally, I installed a fresh mould-resistant silicone sealant between the tile and bath to replace the old, mouldy silicone.

Ceramic Tiled Bathroom After Cleaning Bedford Town Centre Ceramic Tiled Bathroom After Cleaning Bedford Town Centre

Within a short day of work, I had managed to completely transform the appearance of this Ceramic tiled bathroom. The customer was extremely pleased with the result.

Mould problems are extremely common in small bathrooms with inadequate ventilation. Whilst the regular application of Tile Doctor Mould Away will keep the problem in check you can also improve the ventilation by leaving the bathroom door and a window open for a while after use.
 
 
Source: Tile, Stone and Grout Cleaning and Restoration in Bedford

Restoring the Appearance of a Mouldy Shower Room in Cumbria

One of the first issues people have with shower rooms is the Silicone needs to be replaced, even a good quality Silicone like Mapei Ultra-seal which is fully waterproof and stain and mould resistant can still succumb to persistent damp issues. In fact it can get so humid in these areas the warm atmosphere is akin to a tropical rain forest.

To avoid the build-up of mould I recommend you rinse the wall tile and silicone down with plain water from the shower head after every shower and then leave the tiles to dry. Open the window and door to let out the warm condensation and after 5 to 10 minutes partly close the window (to the security setting) and then partly close the door, this then normalizes the room temperature thus inhibiting mould spores from blooming, as mould wont start to Spore on a cold room.

Shower Room Before Restoration Kendal

The pictures were taken from a shower room at a house a few miles up the road in Kendal where mould had caused a lot of staining to the silicone sealant and to the tile and grout both inside the shower cubicle and in the bathroom itself. There were also a couple of loose tiles around the base of the shower cubicle which needed to be re-fixed.

Shower Cubicle Before Restoration Kendal

Cleaning Ceramic Tile and Grout

We started by spraying the tile and grout down with Tile Doctor Pro-Clean which is a strong alkaline cleaner, spraying it on mixes it air which helps it to stick to Vertical surfaces allowing it to get to work on the dirt. We left it to dwell for ten minutes before scrubbing it in by hand using a stiff grout brush; this process certainly improved the grout but unfortunately it had become too badly stained to be satisfactory so we decided to recolour the grout using a white grout colourant.

Once the shower tile was dry the loose tiles were removed and the damp plaster board behind chopped out and replaced. The tiles were then cleaned up, fixed back into position, then grouted and the silicone sealant around the base of the shower cubicle was stripped out and replaced with new.

Shower Cubicle During Restoration Kendal Shower Cubicle During Restoration Kendal

Colouring Grout

One to two coats of white colourant were applied to the grout throughout the shower cubicle and shower room in order to get a uniform appearance and this final touch completed the transformation.

Shower Cubicle After Restoration Kendal

The other advantage of these particular colourant products is that they are epoxy based and form a barrier of the grout preventing future staining and making it very easy to clean going forward.

Shower Cubicle After Restoration Kendal

I think you will agree bathroom now looks like it was recently installed.
 
 
Source: Tile and Grout Cleaning and Restoration in Cumbria