Double glazing refers to the use of two panes of glass in a window, often filled with a gas such as argon between the panes to add as an insulator. The reason so many people choose double glazed windows is that it can make such a big difference to their home in terms of reducing heat loss and energy bills.
New front or back door will keep your home warmer in winter and cooler in summer. A poorly insulated door will cost you money on your heating bills. Inefficient front doors can lose the heat you generate in your home through gaps between the door and the frame, through single glazed panels or poor insulation all contributing to higher energy bills. Investing in an energy efficient front door will not only improve the comfort of your home but also help to reduce your energy bills.