windows /doors contractor installer

[Rene Bee]

Hi Everyone,

I have a 2 family gut reno to do.  I have about 25 windows to replace.  I am going to hire a general contractor. 

Should I expect them to install the windows (add to my sow)

Should I get quotes from window installers?  If so Any reco's for window installers in NJ?  

I called up Lowes and Home Depot and the cost is almost $30k for the windows and installation.

Thx