Full Frame or Insert: the Decision Buried in Your Quote

This one line item explains more price differences between quotes than anything else, and most homeowners never see it because it is not spelled out.

Insert, also called a pocket or retrofit

The old sashes come out and a complete new window goes inside the existing frame, which stays in the wall. Faster, cheaper, less disruption, and no damage to your stucco or interior trim.

The catch is that you inherit whatever is behind that old frame. If the buck is rotted or the original flashing was bad, an insert covers the problem instead of fixing it. You also lose a little glass area, because the new frame sits inside the old one.

Full frame

Everything comes out down to the rough opening. The installer can see and correct the buck, install new flashing, and set the window properly. More expensive, takes longer, and it means stucco repair outside and trim and drywall work inside.

When full frame is the right answer

• Any sign of water intrusion, soft wood, or staining around the existing openings.
• Older aluminum frames in poor condition, or frames that were installed badly to begin with.
• You want the maximum glass area rather than a visibly smaller opening.
• You are changing the size or style of the opening.

When insert is perfectly reasonable

• The existing frames are sound, square and dry.
• The original installation was done properly and there is no leak history.
• Budget is real and the alternative is doing nothing.

The point

Neither is a scam. Both are legitimate and both are used every day. What is not legitimate is a quote that does not tell you which one you are buying, or a company that prices an insert against competitors who priced full frame and lets you believe you found a bargain. Ask the question out loud on every quote.