Energy Efficiency

Energy Saving Windows and Doors

Windows and doors are the single biggest source of home energy loss. According to a recent study 70% of the heat you are paying for, and 46% of your air conditioning is going right outside through your windows and doors, that is only if they are really in good condition.

Your original windows were probably not designed and built with energy savings in mind. They may be wasting energy three ways:
Conduction: In the winter, cold air literally pulls the heat from your home. Heat is absorbed through the window by the cold air outside. Conduction wastes three times as much energy as infiltration.
Radiance: Air you heat during the winter is radiated to the glass, then outside. 25% of total heat loss is caused by radiation through window panes. In the summer, the sun radiates into your house. Radiation causes your furnaces and air conditioners to work overtime!
Infiltration: In all seasons, air moves in and out of your home through tiny cracks and crevices around your windows and doors. A 1/16" gap around a window amounts to a hole the size of a brick!

Your old windows and doors cost you money. They are your #1 source of energy loss. Your furnace and air conditioner systems are forced to overwork just to replace the air that escapes. It`s like trying to fill a bucket with a hole in it!
Don’t let energy and money slip out of old, drafty windows!

What Makes a Window or Door Energy Efficient?

Window Efficiency: Quality Frame Materials; Multiple Panes; Low-E Glass; Gas Fills; Warm Edge Spacers
Door Efficiency: Multiple Glass Panes; Improved Core Materials; Tighter Fit and Improved Weather Stripping


One of the top reasons people decide to replace their existing windows is to increase the energy efficiency of their home. In simple terms, Energy Star rated windows utilize the sun`s FREE solar power to help heat your home. Excellent insulation qualities ensure that ‘heat loss’ through your windows is kept to a minimum. Both of these functions result in your heating bills and energy consumption being dramatically reduced.
Energy Star windows and doors not only Save the Environment but can also Save YOU money!

The easiest way to know which window is right for you are by looking for the Energy Star label. It is your assurance that you are purchasing a window that will be energy efficient all year long.
With rising energy costs, energy efficient - Energy Star windows from WELDA actually pay for themselves.