When you compare an Apeer door to a PVC Door or Timber Core Door an Apeer A++ Door is proven to save you money over the life cycle of the door. With home heating energy prices skyrocketing, Apeer is a door for the times we’re living through. No matter how we heat our homes – gas, electricity or oil – it’s costing us all a lot more. At Apeer we can’t do anything to bring that cost of energy down, but we can stop precious heat escaping through the biggest opening in your home.