Best current price£613.00from Homebase
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Homebase£613.00Visit shop Crystal Half Glass Lh Open Black And White Clear Triple Glazed Door 840 X 2090Mm
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B&Q£759.00Visit shop B&Q - Triple Glazed Door Half Glass Left Hand Open In Black/white Clear Glazed 840 X 2090mm 10 Year Guarantee With Free Delivery
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The Crystal Half Glass Triple Glazed Door is designed for homeowners and contractors seeking a balance of high thermal efficiency and robust security. It is ideal for external entrances where energy conservation is a priority, offering an impressive U-value of 1.1 W/m2K through advanced argon-filled glazing. While it provides excellent insulation and security features, users should note that all handings are determined from the exterior view, which requires careful planning prior to installation.
| Colour | Multicolor |
|---|---|
| Brand | Crystal |
All product handings for this door are viewed from the outside. Stand outside your home facing the door; if the hinges are on the left, it is a left-hand door.
The package includes the door, handle, PVC cill, hinges, locks, and glazing packers.
Yes, it features high-security hook locks designed to provide increased protection against forced entry.
While technically possible for experienced DIYers, professional installation is recommended to ensure the door is correctly aligned and the security features function as intended.
The U-value measures heat transfer; a lower number indicates better insulation. 1.1 W/m2K is an excellent rating for a residential door, indicating minimal heat loss.
It is recommended to lubricate the moving parts of the lock annually with a silicone-based spray to prevent stiffness.
Check that the door is correctly aligned in the frame and that the frame is level. Adjust the hinges if the door has dropped.
Inspect the rubber seals for damage or compression issues and ensure the door is properly adjusted to compress against the frame seals.
Verify that the trickle vents are open and functioning, and ensure adequate ventilation in the room to lower internal humidity levels.
Installation should be performed by a competent professional to ensure the frame is plumb and square, which is critical for the long-term functionality of the hook locks. Use the provided glazing packers during installation to ensure the door is properly shimmed within the frame. Compatibility should be checked regarding wall opening dimensions versus the door unit size. For ongoing care, clean the frame with a mild, non-abrasive detergent and warm water. Periodically check the hinges and locking mechanism for debris, and apply a light silicone-based lubricant to the moving parts of the lock to ensure smooth operation.
