When you replace a window, there are two fundamentally different approaches. Knowing the difference helps you read a quote and understand why one project costs more than another.
Insert (pocket) replacement
An insert replacement fits a new window into the existing frame. The old sashes come out, the new unit goes into the sound existing frame, and the exterior and interior trim stay largely intact.
Best when: the existing frame is solid and rot-free, and you mainly want better energy performance and operation. It is less labor, less disruption, and lower cost.
Full-frame replacement
A full-frame replacement removes the entire window down to the rough opening — frame, trim, and all — so the new unit and the surrounding structure can be inspected, repaired, and properly flashed and sealed.
Best when: there is water damage or rot, the existing frame is failing, you are changing the window size or style, or you simply want the most thorough, longest-lasting result.
How to choose
- Solid frame, want efficiency → insert is often the smart, economical choice
- Soft frames, stains, or visible rot → full-frame, so the damage is actually addressed
- Changing size or style → full-frame is required
- Planning to stay long-term → full-frame buys the most durable result
Beware the quote that prices an insert when the frame is clearly rotting. Covering damage instead of fixing it is how a window project becomes a structural repair a few years later.
Our process
During the free measure, we inspect each frame and tell you which approach each opening actually needs — sometimes a mix across the house. Schedule an assessment and we will lay it out opening by opening.