Does window film fix drafts or condensation?

No. Drafts come from seals and frames, and condensation comes mostly from indoor humidity or a failed sealed unit. Film fixes neither.

If you feel cold air around the window, look at caulking and weatherstripping. If you see fog between the two panes of a sealed unit, the seal has failed and the glass needs replacing. We'll tell you that straight during the assessment rather than install a film that won't solve the problem.