If you EVER inquire ANYWHERE about windows or siding get ready, you'll be receiving non-stop phone calls from that loser industry. Even if you tell them to drop dead, they don't get the message. They are the lowest of low life scum.
i called Anderson to get an idea on prices, when we changed our minds about them coming out to our home, I have been getting at least four calls daily, I babysit my grandson and have had to unplug our phone because they have woken him up to the point where I almost want to get nasty and say very unpleasant things to them about their harassing phone calls.
If that is a local company calling you, asking them not to call might work. If your initial call requesting prices went to a call center of some sort, you best bet is to not answer and not call back. You may want to call your phone company and ask if they can help you with call blocking.
Typically, these companies keep calling so long as they know a phone number will reach real live person or a sometimes a voicemail.
Anderson Renewal Windows was told not to ever call again after they became obnoxious. They switched to this "anonymous" number and have been calling 4-6 times a day. Time to charge them with harassment.