Is $36,000 to replace six casement windows with Pella Impervia fiberglass units a fair price?

This quote is for replacing all windows and doors in the house with Pella Inpervia fiberglass products.

This quote is for the replacement of 6 windows with new Pella vinyl windows, including full frame installation and disposal of old windows. The total cost is $9,314, with a $5,000 down payment and the remaining $4,314 to be financed. The quote includes a lifetime labor warranty and a lifetime manufacturer warranty, though the homeowner notes limitations. - Number of Windows: 6 - Window Types: 4 single hung vinyl windows, 2 double hung windows - Grids: 3 single hung windows will have grids, both double hung windows will have grids - Manufacturer: Pella company - Features: Silver coated, foam insulation inside frames, double pane, non-tempered - Installation Type: Full frame installation - Additional Work: Add frame/covering around windows where outside and inside walls meet to prevent rain/water leaks, clean up and dispose of old windows - Window Sizes: 3 windows are 35.5x70.5, 2 windows are 43x35.5, 1 window is 35.5x34.5 - Warranty: Lifetime labor warranty, lifetime manufacturer warranty (transferable, but homeowner notes limitations regarding ownership transfer)

This quote is for the replacement of multiple windows and a sliding glass door using ProVia Aspect products. The scope of work includes: - 27 double hung 2 over 2 windows - 1 6' picture window - 1 new sliding glass door - Brand: ProVia Aspect