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Company details

  1. Construction Company

Written by the company

Radon-Stop er Danmarks førende ekspert indenfor radonsikring, radonmåling og rådgivning til både private, boligforeninger og erhverv. Vi analyserer konstruktionstegninger og udfører fysiske rådgivningsbesøg med avanceret udstyr for at målrette radonsikringen til det enkelte huse. Vi monterer markedets mest effektive radonsikring med prisgaranti i hele landet.


Contact info

4.8

Excellent

TrustScore 5 out of 5

259 reviews

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Replied to 100% of negative reviews

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Rated 5 out of 5 stars

We are very happy with the whole…

We are very happy with the whole process and with the results. We borrowed the reader and saw that we had up to 350 bq/m3 of radon. After the installation, it has gone down to 6-25 (depending on the area of the house). Both Thomas and Kasper were super nice and helpful. I would 100% recomend them.

23 March 2026
Unprompted review
Rated 5 out of 5 stars

Fremragende resultat og professionelt arbejde

We had two radon suction systems installed in August. I deliberately waited until winter to write this review, as I wanted to evaluate their performance under more closed indoor conditions.

The results have been excellent. Before November, the radon level varied between 0 and 50, depending on the weather. Since December, it has remained stable at around 25.

I am very satisfied with the outcome. Thomas and Kasper were highly professional throughout the process. Thank you.

Google translate:Vi fik installeret to radonsug i august. Jeg valgte bevidst at vente med at skrive denne anmeldelse til vinteren, da jeg ønskede at vurdere systemernes ydeevne under mere lukkede indendørs forhold.

Resultaterne har været fremragende. Før november varierede radonniveauet mellem 0 og 50 afhængigt af vejret. Siden december har niveauet været stabilt omkring 25.

Jeg er meget tilfreds med resultatet. Thomas og Kasper var yderst professionelle gennem hele processen. Tak.

5 August 2025
Unprompted review
Rated 5 out of 5 stars

Professional

Professional, friendly and rapid. Jonas did a great job installing the pumps. I highly recommend him.

Will update on the effectiveness of the solution.

30 October 2025
Unprompted review
Rated 4 out of 5 stars

installation was easy and smooth

installation was easy and smooth, company was happy to answer questions
unfortunately we installed 2 pumps as recommended and after testing one pump dose all the work and turning on the 2nd one had no effect.
The good news is that one Pump lowered our values from 180+ down to 7-5 :)

27 March 2025
Unprompted review
Rated 5 out of 5 stars

Top notch

Professional, friendly, rapid, and cost-efficient. Thomas responds quickly and goes to the point. The complete installation of 2 « radonsug » took less than half a day! Highly recommended.

6 February 2025
Rated 5 out of 5 stars

Great company

Worked really well for us! We had one room with readings of 300-400 Bq/m3, and after establishing the ventilators, it is less than 10 Bq/m3 most of the time. (Similar story for the rest of the house).

Also the service was great - both from the engineers and the person who came out to install the ventilators.

15 January 2022
Unprompted review
Rated 3 out of 5 stars

Nice and quick - waiting for results

Very friendly people that were quick in sending an offer and installing two radon suctions for a very reasonable price. We had approx. 250 bq/m3 in our living room before, which is now (3 weeks later) 150-200 bq/m3. We are waiting for the measurement to level out and hope we will drop below 100 bq/m3 soon.

This review will be updated when we hit the promised >100 bq/m3 with their help.

13 November 2019
Unprompted review
Show reviews in all languages. (259 reviews)

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