Tracy Elmore
Tracy Elmore thanked Maurice Korvo's answer
I am heading towards the renovation of my pre-war apartment. What kind of air conditioners are most suited for such architectures? And what factors should I consider while choosing the air conditioning installation contractors?

Make sure you have sufficient electricity output available. If the contractor says he has to rewire something, be sure he gets a permit and that the wiring is inspected and approved.

Tracy Elmore
Tracy Elmore thanked Ancient One's answer
I am heading towards the renovation of my pre-war apartment. What kind of air conditioners are most suited for such architectures? And what factors should I consider while choosing the air conditioning installation contractors?

Not knowing which city or country your apartment is in, or what floor your apartment may be on limits some possible answers. In general if you wish to maintain the "architecture" you should chose the least obtrusive system. As far a contractors it will be, should be, a slow and careful process. Seek recommendations, view … Read more

Tracy Elmore
Tracy Elmore thanked Frederick Fisk's answer
I am heading towards the renovation of my pre-war apartment. What kind of air conditioners are most suited for such architectures? And what factors should I consider while choosing the air conditioning installation contractors?

Sorry for not being able to give specific answers, but I have an advice. Always look at reviews about products. 95% of the time they will be correct about the product.

Edit: Sorry, forgot - could you show me what a pre-war apartment means? :) Thanks.