New masonry buildings are rarely built in the same way as they were before. We should also preserve and maintain older masonry structures. The old saying "They don't build them as they used to" is very true when it comes to masonry.
Because of the high cost and labor involved in laying large stones, you rarely see large buildings made of all-natural stone. There are several steps that you can take for heritage repairing in Sydney. It is rare to find old masonry structures made from antique brick and real stone anymore. They must be preserved.
You should first clean the surface thoroughly with a soft acid washer and a pressure washer. To avoid damaging bricks or stones, you must not add too much acid to the solution. To remove any dirt, scrub the area with a stiff-bristle scrub brush. This could also be done if you have the skills to use a pressure washer. However, it is important not to damage the surface by using high-pressure water.
Next, you will need to do a thorough tuckpointing job all over the surface. The whole structure should be tucked. You will see a change in the color of the patches if you only grind out the problem areas. The whole surface should be done. You will likely have to tuckpoint other areas later on.
You should also replace any missing or broken masonry units while you are tuckpointing. You should do the mortar color replacement as you go to ensure that the mortar color matches the mortar joints.