Distinguish PVC from aluminium slats
Plastic and aluminium blinds can share a similar horizontal arrangement, but their slat materials differ. Check how PVC or another polymer is identified in the information supplied with a sample. A white colour and smooth finish do not establish the material on their own. Compare slat width, edge finishing and the thickness of the raised stack. For adjacent windows, assess the slats together with the headrail. A wood-effect plastic finish should also be considered separately from natural timber blinds.
Slat tilt and everyday operation
Tilt the slats through different angles and observe the changes in daylight distribution and the view through the window. Then raise the blind to assess the space occupied by the stack at the top. The position of a desk, kitchen worktop or screen helps determine a convenient control side. Reduced light, privacy and a fully uncovered window are different uses, so compare each with your daily routine. Access to the controls and window handle matters as much as the appearance.
Mounting and window sash movement
Decide whether the blind will fit inside the opening, above it or on an individual sash. The handle projection, frame depth and room for the headrail all affect the dimensions. Open the sash fully and check possible contact with neighbouring surfaces. The raised slat stack should also leave the window convenient to operate. Agree on the selected model's dimensions together with its fixings and control side. An overall window photograph and a close view of the handle help with preliminary planning.
Cleaning access and surface care
Base the cleaning method on the instructions for the particular slats and mechanism. Remove surface dust gently first, then test any permitted damp cleaning on a small inconspicuous area. Give the headrail, cords and controls appropriate attention as well. Do not assume that every model can be immersed, brushed firmly or treated with strong cleaning products. For a location near a heat source, check the operating conditions. Plan access to both sides of the slats when choosing the mounting position.