Advice · Grants and energy

Energy renovation scams: how to recognise them and protect yourself

8 October 2026 · 4 min read · By the Aldeak team

Craftsman seen from behind in front of a stone wall being restored, with scaffolding
Restoration of a stone wall, Gironde. An Aldeak project.

Renovation grants have attracted unscrupulous companies: botched work, inflated quotes, fake public bodies. The law has been tightened, but a few simple reflexes remain the best protection.

What the law says

Cold calling has been banned in the field of energy renovation since the law of 24 July 2020, unless you already have a contract in progress with the company. The law of 30 June 2025 against all forms of fraud involving public grants strengthened checks on companies and advisers, and went further on unsolicited canvassing:

“€1” insulation offers, funded by energy-saving bonuses, came to an end in 2021 after widespread abuse. A company still offering them is using a misleading argument.

Warning signs

A typical scenario

By way of illustration, here is how these scams often unfold. A message announces a “State grant” to replace your heating free of charge. A salesperson calls round the next day, talks about bonuses they “handle themselves”, has you sign an order form and a credit agreement on a tablet, then asks for access to your online grants account. The work is done in a single day, without any serious assessment; the promised bonuses never arrive, but the loan repayments do. Every step should have raised the alarm: the unsolicited contact, the urgency, the promise of something free, the credit signed on the spot, the request for login details.

If you have already signed

14 daysto withdraw after a contract signed at home
7 daysafter signing at home, during which no payment can be demanded
€375,000maximum fine for a company canvassing illegally

The right reflexes

  1. Check the company's RGE qualification in the official directory on france-renov.gouv.fr.
  2. Ask for several detailed quotes and take the time to compare them.
  3. Talk to a France Rénov' adviser, free and independent, before signing: the national number is 0 808 800 700.
  4. Never give out your login details for tax purposes or for your grants account.
  5. Use the fourteen-day withdrawal period for a contract signed at home.
  6. Report abuse on SignalConso.

Recognising a genuine Accompagnateur Rénov'

For a grant-funded major renovation, an Accompagnateur Rénov' is compulsory, and some fraudsters pass themselves off as one. A genuine adviser is approved by the State and listed in the directory on france-renov.gouv.fr; it is the France Rénov' adviser who gives you the list for your area, after a free first appointment. They help you analyse quotes, but do not impose a company on you. The law of 30 June 2025 strengthened checks and penalties for breaches of the approval rules.

How we work

“We do not cold call.”

We come to see the house, draw up a detailed, item-by-item quote and give you time to decide. You keep a single point of contact from the first meeting to the handover of the work.

Sources : Loi n° 2020-901 du 24 juillet 2020 (interdiction du démarchage téléphonique pour la rénovation énergétique) · Loi n° 2025-594 du 30 juin 2025 contre toutes les fraudes aux aides publiques, article 13 (démarchage par SMS, courriel et réseaux sociaux ; consentement préalable au 11 août 2026) · Code de la consommation, article L. 221-18 (délai de rétractation de quatorze jours) · Code de la consommation, article L. 221-10 (aucun paiement pendant sept jours après un contrat conclu hors établissement) · Code de la consommation, article L. 312-55 (crédit affecté résolu ou annulé avec le contrat principal) · anil.org, analyse de la loi du 30 juin 2025 · signal.conso.gouv.fr · france-renov.gouv.fr

Frequently asked questions

Is cold calling for insulation allowed?

No, it is banned in the field of energy renovation, unless you already have a contract in progress with the company.

Does €1 insulation still exist?

No, these offers came to an end in 2021. A company offering them today should raise a red flag.

How can I check that a company is RGE-qualified?

In the official directory of RGE professionals, accessible from france-renov.gouv.fr.

Can a company contact me by text message about insulation work?

No, unless you already have a contract in progress with it: since the law of 30 June 2025, the ban also covers text messages, e-mails and social media.

What should I do if I signed a quote after being canvassed?

You have fourteen days to withdraw, and no payment can be demanded for seven days. A contract resulting from banned canvassing is void: keep the evidence and report it on SignalConso.

Can France Rénov' or the Anah call me to offer work?

No. The public service never carries out commercial canvassing: a call of this kind should be treated as an attempted scam.

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