



- Stock: In Stock
- Model: sheerlineHHDG
- SKU: sheerlineHHDG
- MPN: sheerlineHHDG
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Half Glazed Aluminium Door - Prestige Thermlock® A+ Energy Rating
Premium Half Glazed Entrance Door with Superior Thermal Performance
Create the perfect balance of light and privacy with our sophisticated half-glazed aluminium doors. Featuring innovative Thermlock® technology and flexible glazing options, these doors deliver exceptional thermal performance, security, and style for modern homes and commercial properties.
Design Flexibility:
- Half glazed configuration - upper glass panel with solid lower section option
- Mid rail design - choose full glazing or incorporate a bottom panel for privacy
- Dual styling options - 'Stepped' (traditional steel-inspired) or 'Contemporary' (minimalist)
- Frame styles - standard outer frame or flush option for seamless alignment
- Custom configurations - adaptable design suits various architectural requirements

Thermlock®
Thermlock® Thermal Performance:
- A+ Window Energy Rating achievable with superior insulation technology
- Multi-chamber thermal core - hidden insulating chambers act as thermal breaks
- Outstanding U-values - 1.4 W/(m²K) double glazed, 1.0 W/(m²K) triple glazed
- Reduced heating bills - exceptional thermal performance cuts energy costs
- Weather protection - innovative sealing keeps draughts and rain outside

1.4 U-value W/(m²K) Double glazed, 1.0 U-value Triple glazed
The lower the U-value, the lower your heating bills will be. With a triple-glazed option that has a U-value of 1.0, you will stay snug and warm while saving money on your heating bills. Triple-glazing will also reduce noise from passing traffic or in busy areas.

Security
Security Features:
- Secured by Design accredited - official UK Police security standard
- High-security multipoint locking - full-depth Eurogroove system
- Reinforced corner joints - maximises aluminium profile strength
- Hinge protectors - unique security features prevent forced entry
- Integrated lock design - fully enclosed cases maintain frame integrity
- Laminate glass upgrade available for enhanced security

Patented Construction
Patented Construction:
- Threaded screw assembly - eliminates misaligned corner issues
- Hand-tuned perfection - individually adjusted for optimal performance
- In-situ assembly available for larger or internal installations
- Superior build quality - patented methods ensure long-term reliability
Performance Benefits:
- Noise reduction - triple glazing option reduces traffic and environmental noise.
- Energy efficiency - low U-values significantly reduce heating costs
- Weather resistance - aluminium construction withstands harsh UK weather
- Minimal maintenance - durable materials require little upkeep
- Long-term value - premium construction ensures lasting performance

Styling Options
Perfect For: Modern homes, commercial entrances, office buildings, contemporary extensions, energy-efficient builds, security-conscious applications, architectural projects
Glazing Options: Double or triple-glazed configurations available, with laminate security glass upgrades for enhanced protection and performance.








