How to evaluate the reliability and quality of a window manufacturer before purchasing? What factors, such as brand reputation, warranties and certifications, should be considered when choosing a supplier?

In general, I have always been interested in the question, which windows are better to choose for a house - vinyl or wooden?

I don't know much about windows, but if I were you, I would choose vinyl windows, as they are more durable and have good thermal insulation. And as for exterior doors, I recommend looking through the catalog at https://thwindowsdoors.com/exterior-doors/ . There is everything for every design and budget. I personally like the options with steel doors, as it seems to me that they are more secure.