These are numbers from Palo Alto Glass
1. Replace the four (4) large fixed windows across the back with 1" overall thickness tempered insulated low-e insulated glass in openings prepared by your contractor. $7,668.00
2. Replace the two fixed windows around the fireplace with same. $1,668.00
Replace them with doors instead: Fleetwood brand Series 3400 swinging aluminum doors, same spec's. $8,254.00
3. Replace the two sliding doors at the front and back with Fleetwood brand Series 1000 (narrow stiles and rails) sliding glass doors. Clear anodized aluminum finish, low-e insulated glass, locks, handles, screens. $7,643.00
My own extrapolation of replacements for the "old" box, i.e.,
4. 3 sliding doors (shorter than those in LR) ~ $11,000
5. 3 fixed/casement windows in kitchen, bathroom, bedroom towards driveway ~ $4000
i.e., a total of $32K
These numbers are shocking! The only problem is that Milgard may notmake picture windows any wider than 60" - and they don't do tall sliders.
See also a much newer post (1/3/09) on Milgard windows.
