Below is the information on window placement companies I've received thus far: Window Nation Window World (they usually have coupons or specials in the Clipper magazine/on their website) Pella Windows DunRite - Sharpsburg (Dino is the contact person) Thermo Twin - Oakmont (positive and negative reviews) Steve (412) 537-7572 (30 + yrs experience; fully insured; free estimates) Specialty Window and Door (owner: Rick Fish) https://specialtywindowanddoor.com Advanced Window and Door (412) 751-1001 (Steve is the contact) Again, thank you to everyone who responded. This "budget mama" appreciates it. :)