Before appointing a renovation contractor, check on the IMPIC portal that the company has an appropriate and active qualification. In October 2026, that check deserves extra attention: IMPIC reported a sharp rise in applications related to construction activity and acknowledged response times longer than those seen before July. For a homeowner, the practical consequence is straightforward: a polished quote is not enough; confirm the company’s identity, searchable qualification and the match between contract, invoice and work.
Contents
- What changed in 2026, and why it matters before a renovation
- What to check on the IMPIC portal
- Licence, certificate and quote: what needs to match
- Does the July tax change apply to your renovation?
- Warning signs that justify stopping before paying a deposit
- A short plan for appointing with fewer avoidable surprises
What changed in 2026, and why it matters before a renovation
On 7 October 2026, IMPIC reported that average daily applications to carry out construction activity rose from 65.8 up to June to 202 during July, August and September. It also stated that response times had become longer than those previously experienced.
This does not mean that a company with a valid quote is automatically non-compliant. It means a business obtaining, changing or regularising its qualification may face administrative delay. In a Lisbon apartment renovation, that uncertainty becomes a practical risk when the start date depends on crews, subcontractors, material orders and lift bookings.
Make the check a pre-deposit task. It takes only a few minutes and avoids choosing on the basis of a trading name, social-media page or mobile-phone contact alone.
What to check on the IMPIC portal
The IMPIC search service allows users to look up licences and certificates for private-works contractors, as well as companies whose qualifications were cancelled less than a year ago. Ask for the full legal company name and tax number; this is safer than searching by brand alone.
- Confirm that the legal name and tax number on the quote match the entity found.
- Check that the result relates to private works and that the qualification can be identified.
- Save a PDF or screenshot of the result with the date, alongside the accepted proposal.
- Confirm who will issue the invoice: it should be the contracted entity unless the contract clearly explains another company’s role.
Do not treat the search as a complete guarantee. A qualification does not replace a proper contract, a defined scope, technical coordination or checks on insurance and specialist requirements where these apply. It removes a basic uncertainty before you commit money and programme dates.
Licence, certificate and quote: what needs to match
The commercial documents should make clear who is responsible for the contract. Compare four points: legal name, tax number, address or contact details, and work description. If the quote comes from one company and the payment request is in another name, pause and request a written explanation before transferring money.
It is also useful to distinguish between the contractor taking responsibility for the project and suppliers or specialists brought in for defined tasks, such as metalwork, stone, windows, electrical work or air conditioning. A subcontractor list does not need to be final on day one, but the contract should say who coordinates the work, who handles defects and how changes are approved.
To set up this paperwork, review what should be included in a renovation contract in Lisbon. A quote containing isolated prices does not, by itself, settle timing, exclusions, payment stages, alternative materials or responsibilities.
Does the July tax change apply to your renovation?
The IMPIC clarification published in July 2026 concerns changes introduced by Decree-Law No. 97/2026 of 20 May, regarding VAT reverse charge in certain construction services. The treatment depends on the type of transaction and the purchaser’s tax status.
For an individual renovating their own home, the rule should not be assumed from a sentence on a quote. Ask for the total, VAT rate and invoicing method to be clear before appointment. If the property is connected to a business, a company, a specific rental arrangement or another professional use, confirm the treatment with the contractor and an accountant before the first invoice is issued.
The useful point for every client is simpler: invoicing that clearly connects the contract, the qualified company and the work creates a better document trail if a disagreement arises over payments, warranty, variations or handover.
Warning signs that justify stopping before paying a deposit
Some signs do not prove wrongdoing, but they justify a short pause and direct questions:
- refusal to provide a tax number, legal name or qualification details;
- a quote issued by one entity and an IBAN supplied by another with no explanation;
- a request for full payment or a large deposit without a work programme;
- a vague description such as “full renovation”, with no demolition, services, finishes or exclusions;
- a promise to start immediately without a technical visit, measurements or condominium-rule checks;
- repeated changes to the company that will invoice.
Do not solve these gaps through scattered messages alone. Ask for a revised quote or a short written addendum. If the work includes demolition, layout changes, façade work, common parts or technical equipment, also check whether design work, approvals or coordination are needed. The contractor-selection process should reflect the real complexity of the project, not simply its stated total.
A short plan for appointing with fewer avoidable surprises
Start by fixing the scope: what stays, what is removed, which materials are included and what is excluded. Then check the IMPIC qualification, compare proposals against the same work list and only then set payment stages linked to verifiable progress. For an apartment-building renovation, add delivery dates, protection for common areas, noise hours and the responsible site contact.
Keep the accepted quote, IMPIC search result, contract, drawings, materials schedule, variation records and invoices in one folder. This straightforward discipline reduces arguments about what was ordered. If you are comparing firms, see how to compare renovation quotes without simply choosing the cheapest.
In a market where administrative processes are under greater pressure, rushing to appoint without checking documents can appear to save time. In practice, confirming the basics before signing helps protect the start date, programme and your ability to request answers from the right entity.
Key takeaways
- Search by the company’s tax number, not only by its brand or contact name.
- Run the IMPIC check before paying a deposit and keep a dated copy with the contract.
- Make sure the quote, contract, invoice and payment all identify the same responsible entity.
- Clarify VAT treatment and who performs the work in writing before appointment.
For a renovation in Lisbon, Obra Lisboa can help structure the scope, programme and contract documentation for a building project. The practical next step is to gather drawings, photographs and a list of decisions already made before requesting a proposal.
Sources and further reading
AI-generated editorial image; it does not depict an Obra Lisboa project.
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