When you start getting window quotes, you may hear two terms: pocket replacement and full-frame replacement. What is the difference? And why might two companies quote the same house so differently?
It comes down to how much of the old window comes out, and the age of your Raleigh home plays a big part.
What Is Pocket Replacement?
Pocket replacement is also called insert replacement. We remove the old sashes and leave the existing frame in place. The new window slides into the “pocket” left behind.
Your inside trim and outside siding usually stay right where they are.
What Is Full-Frame Replacement?
With full-frame replacement, the whole window comes out, frame and all, down to the rough opening in the wall. The new window is installed and sealed into that opening, and new trim goes on.
Side-by-Side Comparison
| Pocket (Insert) | Full-Frame | |
|---|---|---|
| Old frame | Stays in place | Removed |
| Cost | Lower | Higher |
| Time per window | Faster | Slower |
| Trim and siding | Usually untouched | Some removal and new trim |
| Glass area | Slightly smaller | Full size |
| Fixes rot in the frame | No | Yes |
| Lets you change size or style | No | Yes |
When Pocket Replacement Makes Sense
- The existing frame is solid, dry, and square
- You are keeping the same size and shape of window
- You want to keep your current interior trim
- You want the lowest cost and least mess
Many homes built in the 1990s and 2000s are good candidates, as long as the frames have stayed dry.
When You Need Full-Frame Replacement
- Rot or water damage. If the frame or sill is soft, an insert just hides the problem.
- Out-of-square openings. Common in older homes in neighborhoods like Oakwood and Five Points.
- Changing size or style. Turning a flat window into a bay or bow window, for example.
- Old aluminum or steel frames that pull heat through and cannot be insulated.
- Leaks around the window that need new flashing in the wall.
How It Affects Your Price
Full-frame work costs more because it takes more labor and more materials. It is still often the right call. Saving money on an insert does not help if rot keeps spreading behind it.
See how install type fits into the bigger picture in our Raleigh window replacement cost guide.
Do You Need a Permit?
It depends on your town and the scope. Cary, for example, says a permit is not required to replace windows in existing openings, but it is required for new or modified openings. We check the rules for your town during your estimate.
How We Decide
We do not pick the install type before we see your home. During your free estimate, we check every frame and sill for rot, measure each opening, and look for signs of leaks.
Some homes get pocket replacement on every window. Others need full-frame on a few problem spots. We will show you what we find and explain why.
What We Usually Find in Raleigh Homes
Every neighborhood is a little different, but some patterns hold:
- Oakwood, Mordecai, and Hayes Barton: Older wood windows often have rotted sills or out-of-square openings. Full-frame is common here.
- North Hills and MacGregor Downs: Homes from the 1960s through the 1990s vary. Many frames are solid enough for pocket replacement, with a few full-frame spots.
- Brier Creek, Wakefield, and Wake Forest: Newer builder windows usually sit in sound frames, so pocket replacement often works well.
Frequently Asked Questions
Is full-frame replacement better than pocket replacement?
Not always. If the frame is in good shape, a pocket install performs well and costs less. Full-frame is better when there is rot, damage, or a change in size.
Do pocket replacement windows have less glass?
Slightly. The new window sits inside the old frame, so the glass area is a bit smaller. Slim-frame windows like our Ascent series help make up for it.
How long does window replacement take?
Most homes take one to two days once the windows arrive. Full-frame work can take a little longer per window.
Not sure which your home needs? Call (919) 851-0060 or request a free estimate. Learn more about our window replacement and installation service.
About the Author
Harland Johnson is the owner of Harland Windows & Siding. He has run the company for over 40 years and has personally overseen window, siding, and sunroom projects throughout Wake County and the Triangle. Harland Windows & Siding is an A+ rated, BBB accredited business.