4 Reasons Why Window Fitters and Joiners Use Glazing Packers

Why Window Fitters and Joiners Never Skip Glazing Packers

Whether you're fitting one window or a full development, glazing packers are essential. These small components play a critical role in every installation.

1. Accurate Spacing Keeps Everything Aligned

Without glazing packers, even precise units can become misaligned during fitting. Uneven gaps lead to sloping sashes, poor closing action, and stress on hardware. Using the right size and type ensures the glass sits evenly in the frame.

2. Prevents Frame Distortion and Cracks

Glazing units are heavy. Without packers to support the weight at key points, the frame can bow or twist under pressure, causing cracks in PVCu or aluminium, damaged glazing beads, and expensive repairs. Packers keep weight distributed properly.

3. Packers Help Spread the Load

Every unit needs support at specific points. Using a combination of flat, bridge, and horseshoe packers allows you to match load points to frame material and adjust for uneven sills or lintels.

Bonus: Thermal Efficiency Starts with a Proper Fit

A level, distortion-free frame allows seals to compress fully, reducing air gaps and extending seal lifespan. This results in fewer cold spots and consistent indoor temperature.

The company stocks multiple sizes in trade packs with next-day UK delivery, including 24mm, 28mm, and 32mm widths in flat, bridge, horseshoe, and U-shaped styles.