February 4, 2021, 3:20 am | Read time: 2 minutes

Basement doors typically separate the heated living area from the unheated section, serving as an important barrier, explains the Association of Private Builders (VPB). Closing and insulating the basement door saves a lot of energy–and thus real money. Many basements are simply not included in the insulated part of the house. This is often not communicated during the handover of a house, and in some new constructions, the important door is even missing entirely, according to the association. In such cases, cold air can flow unhindered into the living area.

Leaky Basement Door–How Can It Be Sealed or Insulated?

If cold air from the basement rises through a leaky door, homeowners can retrofit. Lip seals on the sides and top edge are recommended, and a brush seal can help at the bottom. This can be worthwhile, especially since the effort is relatively low. If this is not possible–or if there is simply no basement door–a new one should be installed. It is important that it seals all around from the start. Additionally, ensure the door meets hygrothermal requirements–meaning it does not warp with moisture.

Related: 4 Insulation Materials for the Home Compared

More on the topic

Causes, Measures, and Prevention What You Can Do About a Damp Basement

Old vs. New What to Consider When Replacing Windows

Preventing Mold Regularly Ventilate the Basement Even in Winter

Securing the Basement Door Against Burglary

If you’re considering replacing the existing basement door or installing a new one, you can also improve burglary protection at the same time. The basement is often an entry point for unwanted guests who gain access through a basement window. With an additionally secured door, burglars may get into the basement but not into the living area. Moreover, this option is more cost-effective than securing all basement windows.