A ONE WINDOW SYSTEMS LTD has been working since 11/3/2015. The current status of the business is Active A ONE WINDOW SYSTEMS LTD located on 115 CECIL ROAD, GOWERTON, SWANSEA, WEST GLAMORGAN, SA4 3DN Collins Mark is known as a Secretary of the company. Director Collins Mark is known as a Director of the company. Due date of the next annual return is 3/8/2017 12:00:00 AM."Glazing" is a known activity of the company.