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New Construction Windows vs Replacement Windows
Let's explore the difference between new construction vs replacement windows. In terms of the windows themselves, there is very little difference between the two. In terms of the actual installation, there is QUITE a bit of difference. We will break down both parts of this equation and let you know what you can expect to pay for each of these installation techniques.
Tom - HWRC Editor
Click to read our new construction vs replacement windows Q & A.
New Construction vs Replacement Windows
As far as the actual windows themselves, the only real difference between new construction vs replacement windows is that with new construction, there is a nailing fin or nailing flange attached. This fits around the top and sides of the frame and allows the window to be securely installed to the rough opening (wood frame). This nailing fin costs money, but it is nominal.
Replacement windows (also called insert or pocket windows) are not sold with the nailing flange because they are placed directly inside the existing opening of the old window (therefore they don't require the nailing fin). Some manufacturers sell replacement windows with an optional "new construction" configuration.
Replacement Window Installation
When it comes to installation, there are huge differences between new construction vs replacement windows. Let's start with the easiest of the two methods. With replacement windows (or pocket or insert installation), the old window is literally cut out of the wall and tossed out. The edges of the "hole in the wall" are smoothed to make a clean surface and then the replacement window is inserted.
The installer might shim the window to make sure it is square and plumb. They then secure the new insert using predrilled screw holes in the frame of the replacement window. Next, the installer seals and caulks the replacement window, both inside and out. Lastly, they do whatever finish work to make the new pocket window look nice and clean. Voila! Job done.
New Construction Installation
New construction involves some additional steps. While replacement windows are cut out of the opening, new construction windows
***********write in the steps here.
First off, new construction typically requires attaching the window via the nailing flange to the wall, along with sealing and caulking.
Housewrap or flashing is used to provide a moisutre barrier and a bottom sill pan should be used to create a way for the water to escape away from the house if it should get into the opening many years down the road. Any exterior and interior trim work also needs to be done to make the window look attractive.
New Construction vs Replacement Windows Cost
new construction is considerably more expensive than standard replacement.
New Cosntruction Costs: $250 - $450 per window
Standard Replacement Costs: $100 - $150 per window
Pocket Inserts: $50 - $75 per window
Retrofit Windows
Thank you so much for all of your help! Is a nail fin is better than retrofit? Thanks, you seem to be the only way to get good info for all of the sharks!
Bob - Homeowner - from 2017
Editor's Reply
Bob, there is no clear winner in the retro/new construction question. There are pros and cons to both. Retro is often cheaper, but you lose some glass area and there can be some moisture issues, depending on you walls etc. New construction is more expensive, saves some glass area, and possibly offers better protection against moisture in walls.
This is where a bunch of bids helps you out. The installers/companies basically provide free opinions on which they think you need, costs, process, etc. Keep getting them until you feel like you know the real answer for your project!
Tom - HWRC Editor - from 2017
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