Scrape off any loose paint, clean off dirt of grease, caulk holes or gaps and mask.
We cover furniture with plastic and drop cloths on the floor
Yes, you can
5-10 years with a through proper job
If you see any curling shingles, damage to the facia or missing shingles
You may not have to completely replace it , try and trace the leak to find the culprit
20-40 years based on material preference
If you have a couple minor problems, then most likely it can be repaired. However, if the problem has been there a long time (over a year) of if you have a lot of needed fixes, the replacement might be the better option
Siding can hold up well over 20 years
It does not hurt to give it an occasional wash. It may require a fresh coat of paint of sealant
New siding is a great investment for your house. It increases your property value and can give you a fresh contemporary look