L.G.
I replaced 23 windows in an old 1950's home about 3 years ago. I did my homework and found Wellington Windows, out of Palatine if I remember correctly. They were very easy to work with - not pushy like the Sears salesman and not uninterested in helping me like the Home Depot or Menards guy. They did all the work basically in 1 day and then came to finish up the exterior caulking and clean up the following day. The customer service department called to verify a job well done. I would highly recommend them. If you want me to go through my files and find the number or sales rep. just send me an email and I'll send you details.
L.