Frequently Asked Questions

  • How can I find the grille I want?

    You need to know three things:

    a) The size of the opening
    b) Whether the grille has a lever to open or close
    c) Is it in the wall, ceiling or floor?

  • How do I determine which size to order?

    Our grilles, registers, and diffusers are listed by the opening size. To calculate the size you need, measure the opening or ductwork. Measuring is a simple procedure. Grilles, diffusers and registers are designed to fit standard duct openings. When fitting within floor, measure both the length and width of the duct opening. If the opening is 25.4 cm x 10.2cm (10 x 4), then the same size register is required.

  • What if I can't find my size?

    Please give us a call on 01725 511290. We might have what you need. If not, we have access to more sizes and styles.

  • What is a supply?

    A register or diffuser which delivers warm air for heating or cold air for cooling.

  • What is a return air grille?

    This is an air transfer grille which allows air to be passed from one room to another. They do not have levers to open and close.