How to professionally clean Indian sandstone
We Carryout a professional Indian sandstone patio cleaning service in 3 stages guaranteeing the best possible finish and also guaranteeing that no damage is inflicted to the stones surface or other delicate areas such as the pointing.
Stage-1 the surface clean
We first provide a patio steam cleaning service cleaning the surface at 150C with very minimal pressure using one of our Doff or Therma-Tech steam cleaning systems, we never recommend high pressure jet washing as a cleaning method for Indian sandstone patio cleaning as the high pressure can easily inflict damage to the stone or the patios pointing. We steam clean the surface removing all surface dirt and the Majority of blacks spots, depending on how bad of a build up and how formed the spots are on the surface determines how easily they are to lift when carrying out the surface clean, in some cases all spots are removed instantly, in other cases with heavier build ups the Sodium hypochlorite we use in stage-2 of the cleaning process restoring the natural colour back to the stone also brakes down the spots that didn’t move in stage-1 which are then removed in stage-3 the final rinse & clean.
No matter how bad the build-up of black spots are or how minimal we always carry out a 3-stage cleaning process, Stage-1 professional surface cleaning, Stage-2 lifting and restoring the natural colour back the stone using Sodium hypochlorite and Stage-3 the final rinse and clean.
Once we have completed stage-1 (the surface clean) We give the surface a thorough rinse over Making sure all dirty water is rinsed away but leave the surface remaining wet with freshwater in preparation for stage-2.
Surface cleaning using our Therma-Tech
Stage-2 lifting & restoring the natural
In stage-2 we use a mixture of water and sodium hypochlorite to clean and lift the natural colour back to the natural stone, please be warned I would highly recommend any cleaning where chemicals are needed to be carried out by professionals but if this is something that are planning to do yourself please make sure all the correct protective clothing is worn including rubber gloves, safety goggles and Preferably a rubber or plastic suit. Sodium hypochlorite is highly corrosive and can cause severe burns to the skin and will eat away at clothing also please remember when mixing sodium hypochlorite with water to always pour the Sodium hypochlorite into the water and never the other way round to help prevent splash back of sodium hypochlorite. Once all the correct safety measures are in place we apply the mixture onto the surface with a stiff brush coving all areas of the patio evenly, sodium hypochlorite is a pure form of liquid bleach breaking down any leftover bacteria’s on the surface that may have been left during the surface clean (stubborn black spots) but also cleaning and lifting the natural colour back to the beautiful stone fully restoring it back to its former glory. Once the sodium hypochlorite is applied we leave the solution down for around 30 minutes letting it do its work before moving on to the final stage of the cleaning process.
Stage-3 the final rinse and clean.
In stage-3 final rinse and clean it is literally just a rinse and clean! We thoroughly rinse down the surface removing all of the mixture we applied in stage-2 this is normally rinsed down to the nearest drain hole, we use copious amounts of water in the rinse to dilute the mixture down as it is deposed of and keep on rinsing the surface thoroughly until there is no solution left on the surface just clean fresh water, we then pinpoint any marks left on the surface (if any) guaranteeing a complete spotless finish and colour restoration! We guarantee spotless finishes for all Indian sandstone patios services and that is why we are one of the leading professional patio cleaning companies in the south-east, just seeing the satisfaction on our customers faces at the end of the day makes it that little bit special, there is nothing better than doing the job you love and making people happy at the same time what can be better then that.