The team at Pure Energy Window Company takes tremendous pride in their work and strives to ensure a high quality installation process!All of their installers are experienced professionals who take great care while they're working on your home's windows replacement project (no corners cut!). First, you must use an adhesive caulk along all four sides of the frames before inserting them into place. There are so many considerations when selecting the right materials for your project. Also inspect the window frames for cracks or warping-this could signify an issue with the install job itself and need further addressing!Finally, use caulk around window frames every year to help keep them weather tight and looking nice. But don't fret!With some research and preparation, you can feel confident about making the important decision to replace your windows (with aluminum).