How to verify an installer (official registers)

Links to public registers — we do not copy them into listings.

Updated 2026-10 · Spain

Steps

Electrical/boiler: ask for company name and NIF, then check Registro Mercantil via registradores.org.

Thermal (RITE): MITECO authorised installer search (linked from /en/about/).

Gas: only authorised gas installers for sealed appliances — ask for carnet and insurance.

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