At Bullen Conservation, we take great care in facade cleaning, understanding that each building’s surface requires a tailored approach to preserve its integrity and beauty. We only use the most appropriate, gentle cleaning methods and products that are specifically designed to protect delicate materials such as stone, brick, and historic masonry. Unfortunately, where overly harsh or abrasive techniques have been used by some companies in the past, irreversible damage to facades has occurred, which has stripped away protective layers, eroded materials and compromised the architectural detail that defines these structures.