Spain makes radon gas certificates mandatory, with quarterly testing and fines

The new radon gas certificate: mandatory, quarterly and backed by fines

Spain is adding a new mandatory requirement for homeowners: the radon gas certificate. The rules require measurements over three consecutive months using a specific device, and the document must be renewed periodically. Those without one face fines.

The measure has drawn mixed reactions. On one side is the health argument: radon gas is the second leading cause of lung cancer after tobacco, and it concentrates in areas with granite soil such as Galicia, Extremadura or the Madrid mountains. On the other is the perception that this is yet another bureaucratic scheme: a new obligation added to workplace risk certificates, data protection, verifactu and other burdens on the self-employed and homeowners' associations.

Three months of testing, or three months of waiting?

The process is not quick. The detectors must remain in the home for a full quarter to obtain a reliable reading. That makes the service more expensive, because the technician must make at least two visits: one to install the equipment and another to remove it. In addition, the certificate must be renewed, opening the door to recurring costs.

Critics of the measure point out that the real risk is lower than others, such as smoking — which affects a third of the Spanish population — or swimming pool accidents, which cause around 50 deaths a year. However, European regulations and the WHO recommend maximum radon levels, and Spain has transposed the directive.

What if radon is found in a home that has already been certified?

One recurring question is liability. If a buyer discovers high radon levels in a house purchased with all the proper permits, can they claim against the local council? Experts point out that liability falls on the seller or the owner, not on the authority that issued the permit. But the feeling of legal uncertainty weighs heavily.

The debate remains open. Implementation of the rules is moving slowly, and the business sector sees a new business opportunity for certifiers. Meanwhile, owners of homes in risk areas watch warily: the obligation will come, and with it, the expense.

Given this background, we are likely to see a booming radon certification market, with prices varying by area and urgency. What is clear is that the paperwork keeps growing, and that radon, like so many other things, will find its niche in Spanish bureaucracy.