https://cultureforum.net/what-to-expect-during-your-window-installation/

dow installer. Most reliable advice is best received through word of mouth.
Review the work. Reviews can be found online and also ratings of local window installation companies on sites like Yelp as well as Angie’s List. Find out what clients have to say about the installers, and whether or not they are happy with their services.
Get multiple estimates. Find multiple estimates from different window installation companies to evaluate prices and the services. To make sure you’re taking apples and apples into consideration, ensure that you receive quotes for similar types of windows and installation methods.
Verify the credentials of any window installer. Make sure you verify the credentials of any window company you’re thinking of hiring. Check with the nearby Better Business Bureau to see whether there’s been complaints made against the installer.
Ask questions. You can ask questions. Of course, you should ask if they could go within the budget you have set for your project.
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