If you choose windows with blinds, make sure they are motorized, as this will extend the life of the window and improve comfort and insulation.
No construction work is required to change windows, so no permits are necessary, but as it is an exterior element, it is a good idea to notify the neighborhood community to avoid misunderstandings.
The best season for home renovations is spring, among other things because there is more light and the good weather means that materials dry faster. Consult a specialist because, depending on where you live, you will need different materials; living on the coast is not the same as living in the mountains.
Request a thermographic study: thermographic technology will allow you to identify temperature leaks in your old windows, and repeating the study once the new ones are installed will show that the windows you have had installed are performing as promised in the quote.
Don’t be guided solely by price; this is a very important decision that you will notice month after month in your energy bill.