Mermaid Cleaning Services staff are trained in the art of window cleaning and we are able, with our staffing structure, to complete any internal or ground floor glass cleans usually on the same day. With all external “above ground” window cleans we have two proven specialist contractors who have worked with us for the past 12 years. They have the expertise, and specialist equipment to complete these tasks to the required standard whilst complying to the strict occupational health and safety legislative requirements.