We are newly dehumidifying another partially basement house in Prague.

SMS: Three years after the installation of the device for drying the masonry, we asked to measure the humidity in the walls. In some places in the house, we had doubts that the device was working. After a careful measurement, which was carried out by Mr. Michal Douša, we were convinced that everything was in order. He again willingly explained everything to us. Thank you very much. Spouses Jedlan, Břežany II.

We've had the device for about 20 years and it works perfectly.

I've had it for two years and it works 👍

We have had this device since last year, so exactly one year, we were told that the effect will be known after two to three years and I have to tell the truth that it helps, the mould has stopped forming on the walls and the humidity is decreasing. We have had the plaster stripped down to the brick so we can monitor this. So far, so good.

We are very satisfied with the DryPol® system. It has been drying our house in the historic part of the city without any problems for several years. For years without a single defect - the house is dry and in order. That's why we had it installed at our cottage as well. We can only recommend - fast, left and effective.

Mr. Douša, I would like to praise the 2 devices you installed for drying masonry on the principle of electroosmosis, after 4 years of operation we have dry walls, everything works without problems, the moisture has disappeared. I can only recommend this system. Best regards, M. Sakarova

The installation of the building drying device was carried out in a completely professional manner. Technician, Mr. Bc. Michal Douša arrived exactly on time, explained everything clearly and worked very carefully. I appreciate the friendly approach, the cleanliness after the work is completed and the willingness to answer any questions. The whole process seemed very reliable and without unnecessary delays. Definitely recommend.

(unabridged - in the original version)
Hello, since August 22, 2022 I have been using your device for drying wet masonry - DryPol 50 m - device number M 6381 - according to contract no. 2022/XXX (installed by technician Ivan Douša, Mgr.).
The equipment is used for a 28 m x 23 m building in Polní Chrčice. It is an ""L"" shaped village building with a barn. The front part is a house, 7 m wide x 18 m long and directly connected to the barn with the stable. It is 23 m wide x 10 m deep. The device is located in the barn, on the wall of the last living room. I think everything is optimal. With your equipment, the humidity of the masonry has been reduced and the plaster does not fall off, we are satisfied. Nevertheless, there are places where the humidity is still annoying. We would also like to ""prevent"" this and that is why I am writing to you. I am interested in purchasing another device and possibly moving the current device to another location. With the existing device, you guarantee a range of 50 m, I understand that sometimes calculations and practice can be a little different. Please let me know if this reasoning is correct. Thank you and have a nice day.