What our customers say

Remediation of a single-family house in Wuppertal with the ISTANA Vacuum Inside Method

How did you become involved with the issue of radon and how did you find out that your house was contaminated by radon?
My husband read an article in a newspaper about home offices in the basement, which drew attention to the unknown danger. We then bought a meter and were shocked to find out what enormously high radon levels we had.
Which rooms were affected, only unused basement rooms or, for example, living rooms as well?
Our basement room, used as a study and guest room was the worst. But also the room above, our living and dining room had too high values.
Did the measured radon values or the radon exposure make you feel uncomfortable?
Yes very much!
Were you satisfied with the course of the renovation? Please give us a school grade between 1 and 6 (1=very good to 6 = unsatisfactory).

1

Could anything have "gone" better? Could we have improved anything?

No.

How has your (living) feeling changed since the renovation measure was completed?

We now only check the values from time to time and feel safe and comfortable again with our children.

Remediaton of a single-family house in Saffig with the ISTANA Vacuum Inside Method

How did you become involved with the issue of radon and how did you find out that your house was contaminated by radon?
I found out through local media (voluntary participation in test procedures from a federal office). Then we participated in a test procedure and I ordered measuring devices through the KIT in Karlsruhe. Our measured values were above the limits. Then it became difficult to find someone who could “solve the problem”; finally I came across the company ISTANA at that time and the problem was solved successfully and quickly. Previously, I had another company on site who had recommended having the floor sealed. This cost would have been higher than ISTANA’s remediation and there would have been question marks about the success.
Which rooms were affected, only unused basement rooms or living rooms as well, for example?
Essentially all rooms (unused and used, more or less contaminated) in the basement, less so in the living rooms. However, since we use the basement as a study and guest room, and the children also have play utensils stored there, we had to address the problem.
Did the measured radon levels or radon exposure make you uncomfortable?
Yes definitely. That’s probably why many people don’t measure it. As well as the quick availability of measuring devices. But that’s not an option for me, because that would mean having to say later, “if I had known, then….” I prefer to know the problem and then solve it. Anyway, there is also the possibility to get a good feeling by the measurement, if all measured values are ok. Maybe it’s a personal attitude… It’s like driving through a red light with your eyes closed, just because your eyes were closed, doesn’t mean everything is ok.
Were you satisfied with the way the refurbishment went? Please give us a school grade between 1 and 6 (1=very good to 6 = unsatisfactory).
“1”, for sure. Mr. Wabra is a very nice person, who makes you feel being in the right hands. We are also on the same wavelength personally, which made it even easier.
Could anything have "worked" better? Could we have improved anything?
Not really.
How has your (living) feeling changed since the renovation project was completed?
Yes, it’s a very good feeling to know that we’ve got the complex problem under control, and we definitely would do it again.

Remediaton of a single-family house in Staudernheim with the ISTANA Vacuum Inside Method

How did you become involved with the issue of radon and how did you find out that your house was contaminated by radon?
How did you become involved with the issue of radon and how did you find out that your house was contaminated by radon? Professionally, I came into contact with the radon contamination map for Rhineland-Palatinate. Since the statements here were not clear, we ordered dosimeters from the Geological Survey of Rhineland-Palatinate and had them evaluated. Thereby the radon load was determined.
Which rooms were affected, only unused basement rooms or living rooms as well, for example?
All rooms from the basement to the roof were affected.
Did the measured radon levels or radon exposure make you uncomfortable?
Since the values were clearly above 300 Bq/m³, we felt very uncomfortable.
Were you satisfied with the way the refurbishment went? Please give us a school grade between 1 and 6 (1=very good to 6 = unsatisfactory).
We were very satisfied with the course of the refurbishment and award the grade 1.
Could anything have "worked" better? Could we have improved anything?
You could make yourself better known, so that future customers do not have the same long way to go to become aware of you.
How has your (living) feeling changed since the renovation project was completed?
Our living feeling has increased, especially in the winter months, because we don’t always have to think about keeping an eye on the values in terms of targeted ventilation measures.

Remediaton of a single-family house in Gersbach with the ISTANA Vacuum Inside Method

How did you become involved with the issue of radon and how did you find out that your house was contaminated by radon?
Our neighbors told us after we bought our house. The seller had probably not measured. We then ordered 3 exposimeters and measured for 3 months over the winter. Unfortunately, there was a radon concentration everywhere in the house that required action. At that time, we obtained information on the Internet and then ordered the exposimeters at our own expense. At that time, the information provided by the state of Baden-Württemberg was still very poor. Fortunately, one slowly notices a development.
Which rooms were affected, only unused basement rooms or living rooms as well, for example?
We do not have an exact evaluation, but in the basement, for example, 1,200Bq/m³ were measured. Due to our open staircase and the resulting chimney effect, the radon gas was able to move up to the children’s rooms under the roof.
Did the measured radon levels or radon exposure make you uncomfortable?
Yes, it made us feel uncomfortable, very uncomfortable. Of course, one then doubts whether the purchase of this house was a good idea, especially since our small children were also significantly affected.
Were you satisfied with the way the refurbishment went? Please give us a school grade between 1 and 6 (1=very good to 6 = unsatisfactory).
I give you a 1.
Could anything have "worked" better? Could we have improved anything?
The final grid is still missing, but otherwise nothing.
How has your (living) feeling changed since the renovation project was completed?
For me everything has changed for the better and I can feel comfortable in our house again, my husband would like to measure one more winter to be sure.