• A Silver ACK4 mounted to a green timber roof lantern with a partially open window
    Replacing an ACK4 (ACK42/ACK44) Window Opener

    The ACK4 window openers are one of the most reliable openers on the market and have been for well over 30 years.  With an expected lifespan of at least 10,000 cycles, you should expect the window actuator to last well beyond its warranty period.  Read on to discover the best way to get a replacement ACK42 or ACK44 chain opener if yours has stopped working.

    Published On: 8 February 2024
  • Wiring an electric window opener control
    Planning and Installing Electric window openers
    Published On: 14 February 2023