Let Building Science Lead the Way - Window Condensation

Window Condensation Problem

March 2020 - I purchased new windows being that my existing windows had condensation issues. The salesman told me these windows would fix that. The installation was started and afterwards I noticed was that the windows that were installed were still showing condensation similar to my old windows. I emailed them and attached photos, which I can share. I never got an email response, however after the holidays I got a phone call asking for payment (email too). I mentioned that the job was not done, so they had the installation manager call me. I sent another email with more photos expressing the condensation concern. I called again and I brought up the condensation concern and for the first time I was told this could be a humidity issue. This was the first I was hearing of humidity. The salesman never mentioned anything. I have a temp stat that notes humidity. It’s always around 40 percent, which after some research is right around the recommended level. I took a stance and asked that no work proceed until this condensation issue is addressed. Still no response. I finally got a call and we discussed our options. I obviously felt I was sold a window that was to take care of my condensation issue, but apparently the window company is telling me that there is nothing wrong with their windows. They are trying to make this a humidity issue. If humidity is a concern that should have been measured and documented prior to them selling me their windows that once again were to take care of this issue. The VP of operations called yesterday and he noted that they have had other similar issues and that the salesman do not understand the condensation issues completely. Apparently this isn't the first case. Sorry for rambling, but we are upset and our condensation issue is still not solved.