Where can asbestos be found in a home?

Where does asbestos most commonly show up?

In a home or premises built before 2002, the places it appears most often are these:

• Roofs and corrugated fibre-cement sheets on roofs and outbuildings.
• Fibre-cement drainpipes and downpipes.
• Fibre-cement water tanks or cisterns.
• Old ducts and gutters.
• Old insulation and lagging on boilers and heating pipes, when accessible.
• In some cases, old vinyl flooring or other decorative elements in very old buildings.

Why does the building's construction year matter so much?

Because asbestos was banned in Spain in 2002. Fibre-cement materials (such as the well-known "uralita") installed before that date could contain asbestos; those installed afterwards generally don't. The older the building, the more likely it is to have asbestos in one of its elements.

Can a visual inspection detect all the asbestos in a home?

It can identify most common cases: roofs, downpipes, tanks and other visible, accessible elements. What it can't do is guarantee with 100% certainty the absence of asbestos in materials hidden behind partitions, false ceilings or cladding, nor replace laboratory analysis, which is an optional extra step and not what the law requires.

What signs can I look for myself before requesting the certificate?

You can check whether the roof or outbuildings have grey or whitish corrugated sheets, whether downpipes or tanks have that same rough appearance, or whether the building still has very old, unrenovated installations. Even so, the final assessment and the certificate must be done by a competent professional — it's not a diagnosis that can be settled with a photo alone.

Is asbestos in good condition dangerous?

The risk depends mainly on its condition. A well-preserved fibre-cement material, without cracks or wear, that isn't disturbed, usually represents a low risk. The problem arises when the material is degraded, broken, or handled without proper precautions, because that's when it can release fibres into the air.

What happens if the certificate finds asbestos in my home?

It doesn't block the sale or rental. The report describes where it is, its condition and the risk it poses. If it's in good condition and won't be disturbed, it can usually stay in place; removal by an authorised company should only be planned if it's degraded.

Do commercial premises need checking too, or just homes?

Premises too. Law 8/2026 requires the certificate for both homes and commercial premises sold or rented in Catalonia, and the usual points to check are similar: roofs, ducts, tanks and old installations.

How does the inspection visit work?

I visit the property and visually check the elements where asbestos usually appears: roof, downpipes, tanks, ducts and accessible old installations. From that I write the technical report and the signed certificate, ready for the notary or the rental contract within a few days.