This designates low emissivity glass which means the pane of glass has had a film applied that will block long wave infra red energy, but allow short wave to enter.

Is a gas that is forced in between the panes in a double paned window, it is an alternative to Argon, but is a bit more expensive.

The process of removing the old windows and fitting in the new ones.

It is a coated film suspended between the two panes of glass in an insulated unit. It is not the same as low-emissivity costing used widely in the industry today.

Is a device a sales man will use to demonstrate the ability of a window to stop heat transfer. A thermometer will be placed on one side of the window, and then the Heat Lamp will be applied to the other.

This involves filling the cavity in the frame of a vinyl replacement window with insulating foam. It is generally accepted in the industry that this is not necessary and will not increase the energy efficiency of the window. However there continues to be some debate on the increase in frame rigidity this may cause.

Is a material made of co-polymers (epoxy) and wood by-products and is manufactured by Andersen and sold through their Renewal by Andersen stores. It is not vinyl, wood or fiberglass.

For any type of home improvement work the company conducting it will need to have a form of license to perform the work. What type, varies from state to state. It is always a good idea to ask for a copy. Our CSLB License is #992647.

This is the agreement you will make with the company installing your new windows. It will define exactly what the company will do, price, service and warranty.