You can look up Alside Windows on the BBB. They have a great rating on there. There are multiple sites with reviews, seeing as Alside Windows is a small business they don't have as many reviews as some larger companies.

There are a large variety of different products which are available from Alside. These products include, but are not strictly limited to, building materials and exterior products.

Alside Windows is a company that replace windows. They offer a collection of windows that are designed to provide beauty along with performance. They sell patio doors, specialty windows, and decorative options.

Alside windows have been around for 60 years, so typically companies that have been around for that long are of decent quality. There are several online forums, such as the one at GardenWeb, where past customers discuss their experiences with Alside windows.

The best place to lodge the complaint is with the manufacturers. Explain to them the problem you are facing and how it is causing an inconvenience and reques them to address the issue