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How energy efficient are half glazed uPVC Back Doors?
Half-glazed doors are a mainstay in back entrances, but when it comes to energy efficiency, how do half glazed uPVC Back Doors measure up. To find out, we need to look at:
- Glazing: For more than natural light
- Rebates & weatherseals: Essential to blocking out draught
- Layers: And how they can keep homes warm
The glass within uPVC Doors
What they include: A selection of designs for style and double-glazing for heat loss reduction.
Description: Perfect for brightening rear hallways and kitchens with the light of the outdoors, and for combining modern appeal, doors such as our Anthracite Grey Half Glass Plastic Clear/Pattern uPVC Back Door, and the more decorative Anthracite Grey Box Lead Design Back Door and Plain Panel uPVC Diamond Lead Door, are good options. The glass within these doors is layered, which helps to break up the paths of escaping heat from indoors and cold from outdoors. The warm edge tech spacer bars provide superior insulation over standard aluminium spacers.
Our uPVC Door rebates & weatherseals
How they help: By sealing out draught across the doors’ openings.
Description: To ensure that gaps are closed off within our uPVC doors, they are double rebated. With L-shaped edges, rebated doors offer a superior airtight seal than flush doors, which offer little resistance to incoming draught. To further repel the cold, high-performance weatherseals are placed around the edges of our uPVC doors and their frames. They also provide the benefits of keeping out water and reducing external noise.
The layers of a uPVC Door
Why they matter: They minimise heat loss, a common issue in homes.
Description: Too often overlooked is heat loss from within the home. In order to minimise this, our uPVC Back Doors are multi-layered, with the central cores made of dense PU foam. These multiple layers create a more restrictive path for heat to escape than with a single-layered door. As mentioned, the glass within out doors is also multi-layered, providing the same benefit of minimising heat loss as with door panels.
In conclusion, half-glazed uPVC Back Doors are very energy efficient. They reduce internal heat loss with multi-layered panels and glass, which includes superior spacer bars to standard doors; and they keep out draught with their double rebated edges and draughtproof weatherseals, leaving no gaps for cold to enter.
Benefits of uPVC Back Doors

Stable
- Double rebated uPVC Door with high-performance weatherseals
- Toughened double glazing
- Warm edge spacer bars to deflect stary heat and draught
- Multi-layered uPVC panel with PU foam core for insulation
- Your Anthracite uPVC Back Door made to measure
Timeless half-glazed style with modern perks
Our uPVC Back Doors are built to conform to high standards of energy efficiency and security, using top-quality components.
Anthracite grey is one of our 8 low-maintenance finishes for Half Flat Panel uPVC Back Doors, and also available for our other styles.
Our Supply Only uPVC Doors are made to measure and pre-hung for the convenience of DIY and trade customers.
































