broken patio door frame

I'm new to the forum and completely new to home remodeling. Nonetheless, I'm interested in doing some remodeling to my home. One of the first projects I was interested in doing was replacing the sliding glass door in the back of my house with some patio doors. I've heard installing doors can be pretty tricky?? I'd like to do it myself if I can, but I also don't want to bite off more than I can chew. So, I'm a little apprehensive. Where to start? How to properly take measurements? What is involved in putting in patio doors? What to watch out for? Trouble areas that will arise? Perhaps there is a good resource on tackling this type of project? What are the pitfalls? Is this something a professional should do or is it a reasonaable project that a first-timer could do and begin their learning process? Thanks for any help and suggestions! Regards, -D-

I'm currently remodeling my kitchen and I want to replace the double casement window above my sink. The existing Anderson casement is 25 years old and has some leaks. How easy is it to replace the window myself? Any good tips? Also, I'm assuming the casement comes with new construction framing. If not, the current exterior framing is wood and I want to wrap it in aluminum or vinyl to make it maintenance free. I can easily access the outside from a small step ladder. Is this a relatively easy job? Thanks!