Check a roofing contractor
Before you pay or sign, confirm who the company is. Tick the red flags you saw and the checks you have done. See what is left to confirm and use the official IMPIC lookups.

Contractor check
We store nothing you tick. The rules come from our guide to choosing a roofing contractor, which cites the law for each point.
Why check
Anyone who carries out building works in Portugal needs an IMPIC licence: an alvará or a certificate, under Lei n.º 41/2015. For works that need no permit, like most roof repairs, it is the owner who must confirm that licence on the IMPIC site.
The red flags come from the warnings of the GNR, the PSP and Leiria council after Storm Kristin, and from the rules in our guide on contracts, payments and withdrawal.
What this tool does not do
It does not say whether a company is good or a scam, and it does not query IMPIC for you: the lookups open on the official site. It is not legal advice. We have not read amendments to Lei n.º 41/2015 after 2018, and we do not know whether a minimal job, like replacing two tiles, counts as works for the licence.
Also read
Frequently asked questions
On the IMPIC site, in the lookups of private-works licences and certificates. Search by number or NIF, confirm the name and the class, and also check the list of those cancelled in the last year.
Not from 3,000 euros: the Lei Geral Tributária bans paying or receiving 3,000 euros or more in cash, adding up all payments for the same service. Pay by bank transfer.
As a rule you have 30 days to withdraw from a contract made at your home, but there are exceptions, such as repairs at your home made at your request. See our guide to choosing a contractor.
Do not pay or sign. Confirm the company at IMPIC, ask for everything in writing and, if you think it is a scam, speak to the GNR or the PSP.
Want quotes from checked companies?
Describe the roof. We are not contractors: we send your request to someone who can give a quote, and you should still confirm their licence.