Denver Door and Window Construction Companies
There are typically two types of Denver window and door companies:
1. Door and Window Installers
If you go directly to a door or window installer then they will most likely to go the suppliers themselves, buy the material, put their mark-up on them, and then install the doors for you. If you want to do it the "easy" way this is the way to go. Just make sure you have them show you what they are planning on installing before they purchase everything and then you are good to go. As I ALWAYS mention for remodel work - get a price up front rather than letting them install everything while wondering how long it will take or how much they will charge you.
2. Door and Window Suppliers
Door and window suppliers are helpful to know if you are up to tackling the install by yourself or if you want to make sure you get the best bang for your buck. You can select your door(s) and hardware from them, order them directly, and then either have the company drop them off at your house or you can go pick the material up. If you are only doing one or two doors you can go through a typical home improvement store for these but if you are doing a bigger project I would recommend going through a supplier who specializes in doors and windows to avoid headaches!