Cleaning and Grouting Sandstone Patio Paving in Kettering

At the start of the year we usually get asked to restore the appearance of patios and other outside areas which have suffered from the staining of autumn leaves and the ravages of winter cold snaps. Most patios are quite straight forward to maintain however when you’re dealing natural stone then it’s best to call in your local Tile Doctor to ensure nothing is applied to the stone that could damage it.

Such was the case with this four-year-old Sandstone Patio at a house in the town of Kettering. Unfortunately, it was not sealed when it was first installed and the combination of weather and UV sunlight had faded the tiles, this together with general soiling had greatly affected the appearance of this beautiful stone and could almost have been mistaken for concrete slabs.

Sandstone Patio Before Cleaned Re-grouted and Sealed Kettering

Maintaining Sandstone Patio Paving

My first course of action was to lightly spray the area with a dilution of Tile Doctor Pro-Clean which is a powerful tile cleaning product that is safe to use on Stone. The solution was allowed to soak in for a while before being agitated with a brush to bring out the dirt. This was followed by pressure washing with a spinning tool at a medium pressure so as to not damage the stone.

Once dry I re-grouted the entire area and then sealed with Tile Doctor Colour Grow Sealant which is a impregnating breathable product (essential for damp environments) that also enhances the natural colours of the stone.

Sandstone Patio After Cleaned Re-grouted and Sealed Kettering

Within hours of finishing the customer came home and called me straight away to say he couldn’t believe the transformation that was achieved and they looked better than when they were first laid.
 
 

Sandstone Patio Maintenance in Northamptonshire

Stained and Damaged Sandstone Patio Restoration in Rushden

Lichen, moss and other plant-based staining is a common sight on patios exposed to the UK climate. For many property owners, it’s a very difficult task to keep patios looking great in the face of the natural effects of the environment. However always happy to help Tile Doctor is available to provide the professional cleaning and sealing needed on a regular basis.

This Sandstone tiled patio in Rushden was certainly a prime candidate for restoration. Not only was it completely covered in lichen and moss, but it was also cracked in parts and missing grout. The patio would therefore need not only cleaning and sealing, but also re-grouting.

Sandstone patio slabs before cleaning Rushden Sandstone patio slabs before cleaning Rushden

Cleaning a Stained and Damaged Sandstone Patio

To begin the restoration, I opted to power jet wash the entire area to remove as much of the initial layers of moss. Then, I mixed a strong dilution of Tile Doctor Pro Clean, which is a powerful and reliable alkaline cleaner suitable for use on both internal and external natural stone tiles. This was applied liberally to the patio and scrubbed into the stone to cut through the particularly stubborn stains. The two photos below show the fantastic result.

Sandstone patio slabs after cleaning Rushden Sandstone patio slabs after cleaning Rushden

Re-grouting and Sealing a Sandstone Patio

After completing the cleaning phase, I allowed the patio to dry completely overnight before returning to re-grout the entire area with mortar. To finish off I applied a fresh sealer in the form of Tile Doctor Seal and Go Extra, which an acrylic-based, fully breathable sealer appropriate for outside use.

The below pictures show the final result. As you can see, it was a complete transformation – and my very happy customer will agree! With the right products and methods, it’s possible to bring new life back to weathered patios.

Sandstone patio slabs after cleaning Rushden Sandstone patio slabs after cleaning Rushden

 
 

Professional Sandstone Patio Restoration Northamptonshire

Slate Patio Tiles Treated for Grout Haze and Sealed in Brackley

Along with internal tiled floors at residential and commercial properties, we also specialise in the cleaning, restoration and sealing of all types of external tiled floors, including patios.

This customer, who lives in the small town of Brackley in Northamptonshire, had made the unfortunate mistake of sealing a brand new Slate tiled patio without removing the layer of grout haze smeared across the surface of the tile first. With the grout trapped between the tile and the new sealant the sealer was unable to fulfil its potential and the entire floor appeared really dull and patchy. The customer contacted me about setting the situation right.

Patio Slate Tiles with Grout Haze Before Cleaning Brackley

Treating a Slate Tiled Patio for Grout Haze

My initial course of action was to remove the new sealer using Tile Doctor Remove & Go, which is specially designed to strip away sealant, as well as adhesives and paints in cases where building and decorating works have left the tiles stained. The product was applied liberally across the surface area of the patio and agitated using a rotary machine fitted with a special stripping pad. Of course, this was necessary because the grout haze could not be treated without removing the sealant first. The soiled cleaning solution was promptly soaked up using a wet-vac machine.

Once the tiles were exposed I applied Tile Doctor Acid Gel, which is a blend of phosphoric and hydrochloric acids in more manageable gel form, all over the patio and allowed it to dwell for ten minutes to begin neutralising the grout haze. I then added a little water and worked the product into the patio with a stiff scrubbing brush and a rotary machine to ensure all grout haze was removed from the surface of the tiles. The remaining slurry was then removed using the wet vacuum, and I rinsed the area twice with plain water to ensure all cleaning products had been removed. It was them left to dry completely.

Patio Slate Tiles with Grout Haze Being Cleaned in Brackley

Sealing a Slate Tiled Patio

I returned to the property several days later to give the patio a fresh seal now that it was free from grout haze. First, I gave the patio a vacuum and light mop to remove any dust and debris. The customer wanted the tiles as dark as possible, therefore I suggested we use Tile Doctor Stone Oil before sealing, as this would darken the Slate significantly.

Once this was agreed, I applied one coat of Stone Oil, allowed an hour for the product to dry, and then followed this applying two coats of Tile Doctor Colour Grow sealer. This is our impregnating, colour enhancing sealant which provides maximum protection against ingrained dirt and stains, as well as a durable no-sheen finish.

Patio Slate Tiles with Grout Haze Removed and Sealed in Brackley

As you can see from the photographs, the Slate tiles experienced an impressive transformation. The fresh sealant, combined with the Stone Oil, really took the appearance of the tiles to a new level and, what’s more, it will be easier for the happy customer to keep it clean in the future.
 
 

Restoring the Appearance of a Natural Slate Patio in Northamptonshire