As many of you seem to own prehistoric relics or even recent constructions there are many many
"aides", be it for renovating buildings or heating systems or even tax :"déduction sur travaux"
The list seems unexhaustive !!
The easiest place to start is the local ANAH ( agence Nationale de l'Habitat ) who, if you're lucky
will tell you all the helps you can have ( comission locale, FART ( Fond d'aide a la Renovation
Thermique) to name but two !)
Remember this is France, prepare for a rough ride and many contradictions
My dossier took 2 years from start to finish ...