Replacing Your Windows? The Installation Decision That Could Save You Thousands
When homeowners start shopping for replacement windows, most of the attention goes to the window itself: vinyl or fiberglass, black or white, double-pane glass, frame style, brand, and price.
But there is another decision that can be just as important:
How will the new windows actually be installed?
Choosing between retrofit installation and new-construction installation can affect the appearance, waterproofing, cost, and amount of construction involved in your project. Understanding the difference before signing a contract can help prevent expensive surprises later.
What Is a Retrofit Window Installation?
With a retrofit installation, the existing window frame generally remains in place. The new window is installed into that existing opening and sealed around the perimeter.
The biggest advantage is simplicity. Because the surrounding stucco or exterior finish usually does not need to be extensively removed, retrofit installation can be faster, cleaner, and less expensive. However, there is a tradeoff.
Installing a new frame inside an existing frame can reduce the visible glass area and make the frame appear wider. Waterproofing is also primarily dependent on properly sealing the new window to the existing conditions rather than integrating a new window flashing system into the wall.
For many homes with existing windows that are properly integrated into the building and show no signs of water intrusion, retrofit can be an excellent solution.
When Is New Construction the Better Choice?
New-construction installation is much more invasive. The area surrounding the window is opened sufficiently to expose the building's weather-resistant components. The old window is removed, and the new window—with its nail fin—is installed and integrated with appropriate flashing and waterproofing materials.
This approach should be seriously considered when:
There are existing leaks or signs of water damage.
The surrounding stucco is already being replaced.
Window openings are being enlarged, reduced, or relocated.
The home is undergoing a major remodel.
The existing window installation or waterproofing is questionable.
New construction usually costs more because it involves additional trades and finish work. Stucco, drywall, waterproofing, painting, and other repairs may also be required.
But when the exterior of the home is already being opened during a remodel, it may be the perfect opportunity to install the windows using a new-construction method.
Don't Choose Based on Price Alone
A $1,000 window installed incorrectly can create a much bigger problem than a more expensive window installed properly.
Before comparing quotes, make sure you are comparing the same installation method and scope of work. Ask whether the existing frame remains, how the perimeter will be sealed or flashed, who is responsible for waterproofing, and who will repair the stucco and interior finishes.
These questions can reveal major differences between two proposals that initially appear similar.
The Bottom Line
There isn't one installation method that's right for every home.
A good window contractor should evaluate the existing conditions, understand your remodeling plans, and explain the advantages and limitations of each approach before you order the windows.
At Lion Windows & Doors, we believe the right window is only part of the equation. Understanding how that window will integrate with your home is equally important.
Planning a window or door replacement project in Los Angeles? Send us photos of the existing openings, approximate dimensions, and a brief description of your project. We can help you determine which products and installation approach make the most sense before you spend money on the wrong solution.
