When an issue is detected in our indoor environment especially one that can affect our health, remediation should be carried out accordingly in order to reverse the negative impact caused and maintain a healthy environment for workers and occupants. In fact, remediation should be carried out periodically at least once a year. Moreover, attentions should be given to buildings where people who are susceptible to diseases such as children, elders and patients occupy. Besides consultancies, we customize comprehensive remediation services for indoor environment of buildings to solve the specific issues identified during inspection.