Graffiti removal from the heritage sandstone of the Sydney Harbour Bridge — using the safest available method for heritage stone. Graffiti Removal: Removal of graffiti from the sandstone elements of the bridge using the safest available technique. Heritage Protection: Surfaces cleaned without damaging the grout or the surrounding stonework. Result: Graffiti fully removed and the […]

One of our most challenging projects, completed in 2013 — internal and external cleaning of the station’s heritage sandstone surfaces. Sandstone Cleaning: Removal of built-up dirt, pollution and calcium salt deposits from the soft heritage sandstone. JOS RotoSoft System: A gentle, low-pressure rotating vortex cleaning method ideally suited to soft heritage sandstone, removing contaminants without […]