The blower door draws in outside air through leakage points, determining the areas you need to address in order to achieve the best airtightness result possible for your home.

Even if you have decided to not have your home certified Passivhaus, you might still want to have it checked for air leakages/draughts. We are Air Tightness Testing and Measurement Association (ATTMA) certified and have the latest technology to be able to do this for you.