Installing a new window is usually a straightforward process. Nevertheless, there are specific manufacturer instructions that you need to follow to ensure the installation is done correctly. This is why it’s worth hiring qualified window installers to work on your window replacement.

Here are some window installation mistakes that a good window installer won’t make.
Wrong Measurements
Window openings are measured accurately by professionals so that they’ll be able to select the correct window size for your home. Although standard-sized windows are easier to find, they might not be a perfect fit for the existing opening in your home. This could result in gaps and other window problems that would decrease the window’s energy efficiency and durability. If you’re getting custom-sized windows, a good contractor will ensure the measurements are correct.
Failure to Add a Back Slope
Window back slopes are sloped or inclined surfaces that are designed to channel rainwater away from the house. A good window installer will recommend adding a small incline to serve as a back slope to keep rainwater from infiltrating your home.
Improper Use of Spray Foam
Spray foam sealing and polymer foam require precise application, proper amounts and clean hands for the best results. A good window contractor will avoid the misuse of spray foam, which could result in shaky and vibrating panes, inadequate insulation and faulty window operation.
Inadequate Flashing Adherence
Window flashing requires the appropriate temperature and a clean surface to adhere properly. A good window installer pays attention to the proper application of this component, ensuring that the windows are installed perfectly.
Incorrect Installation Procedures
Many window installation projects fail because the manufacturer instructions were ignored. In some cases, cutting corners and the lack of tools lead to poor installation quality. If you hire a reliable installer for your window replacement, you won’t have to worry about substandard window quality.
You can always count on Renewal by Andersen® of Greater Philadelphia for top-notch window replacement services. Call us at (610) 563-2190, or fill out our contact form to request a quote.