On November 6, 2026, Andersen announced nationwide availability of its 100 Series double-hung windows and an expansion to include an insert-frame option. If you are comparing replacement quotes, ask each installer to identify the parts of the existing opening that would stay in place.
Compare the scope before comparing the price
An insert replacement generally fits a new unit inside an existing frame. A full-frame replacement generally removes the old frame and exposes more of the opening. Which approach is suitable depends on what the installer finds at the site. Ask how the proposal handles damage, moisture or an opening that is out of square.
Imagine two fictional quotes for the same room. One keeps the existing frame and lists interior touch-up separately. The other includes frame removal and new trim. A lower total can reflect a smaller scope. Ask both installers to show the retained parts and to price any likely repairs separately.
- Which frame, sill and trim pieces will stay?
- What measurements and frame condition support that choice?
- Who handles unexpected damage, and how will any added work be approved?
- What is the exact model and frame option, and what does the written quote include?
Andersen’s announcement identifies the new option. Ask for current installation documents for the exact configuration in your quote. A product update alone does not establish suitability for a particular opening.