Ventilation houses as we do in the Nordic countries is not obvious in Spain.
It is not only to prevent moisture and mold damage that may form in a closed humid house, ventilation is required, it is also intended to replace the air for indoor air quality.
We use Swedish products to fully ventilate the your house or apartment. Regardless of the season and how often you visit your property in Spain, you need a good ventilation. For these installations, we have fixed prices.