Full-frame vs insert replacement

There are two honest ways to put a new window in an old opening. The right one depends on the frame that is already there, not on a sales package.

Insert, or pocket, replacement

The old sash comes out. The existing frame stays. A new window is built to sit inside that frame.

Choose this when:

• The frame is solid, square, and dry
• Exterior trim and siding are worth keeping
• You want less disruption inside the rooms

Watch-outs: you give up a little glass area, and any rot hiding in that old frame stays hidden. If we see soft wood or a racked opening, we will not force an insert.

Full-frame replacement

The entire old window comes out to the rough opening. We flash the opening, set a new unit, and close the interior and exterior finishes back up.

Choose this when:

• The frame is rotten, out of square, or aluminum that has had it
• You want to change the look of the exterior casing
• Water has already been in the wall

It is more work. It is also the only way to start over at the opening — which is what a wet Washington wall often needs.

How we decide on site

We do not pick a method from a photo of the glass. We look at:

• The sill and stool with a probe, not just an eye
• Whether the sash still closes square
• How the exterior cladding meets the old casing
• Whether you want the same sightlines or a different window style

Then the estimate lists the method per opening, not one price that hides a worse job.

What this means for cost and time

Inserts are usually faster and cost less per opening. Full-frame takes more crew time and more finish work. A mixed house is normal. Read what a Washington project costs for ranges, then get a measure so the number is about your openings.