Renovating a Black Limestone Patio in Surrey

This customer from Farnham called me with three requests. First, can you clean and seal our Black Limestone patio? Secondly can you remove some scratches? and finally, can you make it less slippery as my children have slipped a couple of times in the wet.

After discussing the problems over the phone, we agreed a convenient date and I went along to the property to have a look. I could certainly do the first and second but not the third. There are products on the market but most Anti-slip products I’ve come across contain acids which etch and roughen the surface. Her patio was made of dark limestone which is acid sensitive and applying an acidic product would ruin the look of the stone leaving it looking washed out. I discussed with her the options and the process and we agreed a price, booking the work in for later in the month.

Limestone Patio Before Cleaning Farnham

Cleaning a Black Limestone Tiled Patio Floor

First, I cleaned the grout lines with Tile Doctor Pro Clean which was left to soak in for about ten minutes before being scrubbed with a nylon brush and being careful not to further scratch the stone.

The next step was to clean the stone with a series of burnishing pads starting with a coarse 400-grit lubricated with water then moving onto increasingly finer pads of 800 and 1500 grit. It’s important to rinse and extract the slurry after applying each pad. This process removes the existing sealer and slightly mills the tiles firstly opening the pores then slowly closing them as the process continues. I avoided the dark area in the picture where the table was situated as it had been protected from the weather, sun and small children. My aim was to get the same consistent colour across the whole patio.

Once I had used the three pads, I completed a final rinse and extraction with a wet vacuum. I then checked surveyed the floor looking for any areas that needed more work and to verify that the scratched had been removed as part of the process. The work went well, and I was happy to see that the scratches had been lifted and the appearance of the stone looked much better and more even.

Sealing a Black Limestone Tiled Patio Floor

It was a warm day, so it wasn’t long before the stone had dried and were dry enough to be sealed. I talked through the customers options for sealing and recommended the application of Tile Doctor Colour Grow as it contains a colour enhancer which would return the dark colour to the stone and match the original colour under the table. Colour Grow is also rated for external use.

Limestone Patio After Cleaning Farnham

Two coats of Colour Grow were applied, and this made a big improvement to the appearance of the stone resulting in a stunning transformation. The customer was over the moon and with the patio now ready for the summer she could not wait to get the patio furniture in place and enjoy the space.

 

Source: Black Limestone Patio Cleaning and Renovating Service in Farnham, Surrey

Limestone Patio Maintenance

Earlier in the year I was contacted by a client down in Broadstone (a town supposedly named after a local legend) to revamp 100 square metres of black Limestone patio, which hadn’t looked right ever since it was first laid. The main problem was water ingress where water had been allowed to seep into the stone due to a poor sealing job. This had caused natural salts to form, and the resulting rough surface had collected grout haze at installation. I decided to run a test on a small patch of the patio to determine the best methods for cleaning and removing the grout haze.

Cleaning Limestone patio with water ingress and grout haze

I decided to conduct my test on just one square metre of the Limestone patio. First of all, I used Tile Doctor Grout Clean Up on the grout, a cleaner which helped to remove the grout haze by penetrating beneath the surface and lifting the muck out.

After cleaning the grout I moved onto cleaning the tile itself, using a solution of Tile Doctor Pro-Clean and clean water in combination with a black buffing pad. After achieving some great results with this cleaning method, I left the test area to dry completely before the seal, as any excess moisture left on the surface could potentially affect the performance of the sealer.

Sealing the Limestone patio

My choice of sealer was Tile Doctor Colour Grow. Colour Grow is a multi-use product which works well on both internal and external unpolished surfaces. One of the great things about Colour Grow is that it is a colour intensifying sealer, meaning it really helped to bring out the black colour in the Limestone which had previously been affected by dirt and water ingress. The sealer will also provide durable protection against these types of problems in the future.

black limestone patio test clean patch in Broadstone

As you can see from the photos, the result of my test was very good – the stone became almost completely black once again, and the defects in the grout were successfully removed. Nonetheless, I decided to leave the test patch for a month to see how well it withstood the effects of the weather. The test patch proved very durable – proving that the sealing had been done properly this time – and my client subsequently hired me to restore the remaining 99 square metres of patio!
 
 
Source: Professional Tile, Stone and Grout cleaning services in Dorset

Restoring the Look of a Limestone Patio

This was a job I did earlier in May this year where I was asked to clean this lovely Limestone patio installed at the rear of a house in Haddenham near Thame on the Oxfordshore borders which had succumbed to the ravages of the English winter weather and was far from looking its best.

As a Tile Doctor and carpet technician I have invested a lot in powerful high pressure machinery that can make light work of interior and exterior installations so taking on this patio was not a problem and it was nice to work outside for a change.

Limestone Patio Before Cleaning Haddenham

Power washing a Limestone Patio

On arrival I set-up the high pressure equipment and then proceeded to pressure wash the patio in order to get the worst of the dirt out of the tile. Then I soaked the tiles in a strong dilution of Tile Doctor Pro-Clean which was left to dwell for thirty minutes. The next process was to use a deck brush to scrub the cleaner into the stubborn areas and then rinse the patio with clean water which was then removed using a wet vacuum. After letting it dry I then had to re clean the worst areas again following the same process until I was satisfied with the condition of the tile.

Limestone Patio After Cleaning Haddenham

Sealing a Limestone patio

The patio soon dried in the warm sun and later that day I was able to seal it using a couple of coats of Tile Doctor Colour Grow which is a colour enhancing impregnating sealer that can be used internally and externally, it works really on Limestone and did well to bring out the natural colours in the stone.
 
 
Source: Professional Tile, Stone and Grout Cleaning service in Oxfordshire

Removing Glue from a Portland Limestone Patio

This Portland Limestone patio on Round Island in Poole Harbour had, together with a sun room indoors, been covered in a thick layer of carpet glue which had set hard in the warm sun over the years and the owner had found it impossible to remove themselves. There’s no bridge so the island is serviced via a boat from the mainland, which as you can imagine made it a bit of a task getting all my equipment over there.

Cleaning Portland Limestone Flagstones

I began by using 17″ Starke Silicone carbide discs which at 24 grit are much coarser that the burnishing pads we usually use. To get the right level of traction I used the disks on a Numatic buffing machine that had been weighted down and the combination worked well to cut through the glue and turn as much as possible of it to dust.

Portland limestone patio round island begin

To remove the remaining glue I soaked the Limestone in a dilution of Tile Doctor Remove and Go and left on the glue overnight under sheets of plastic and dust sheets so it wouldn’t dry out it. It also ensures the product remains in contact with the glue and kept it away from any wildlife which might use the patio when I wasn’t there.

The next day the remaining glue had softened and I removed as much as I could using a black buffing pad attached to the buffing machine together with a strong dilution of Tile Doctor Pro-Clean before applying more Remove and Go again and steaming each tile in turn whilst brushing with a brass coated Spid wire brush.

Portland limestone patio round island during

This was quite a lot of work and as the stone was not dense and had wide pores the glue had sunk in deep when it was applied and I had to repeat this process several times before the stone was clean. Finally I used a pressure washer to thoroughly rinse and clean the stone before re-pointing where necessary.

Portland limestone patio round island finished

 
 
Source: Professional Tile, Stone and Grout maintenance service in Dorset