Persistent window condensation is one of the most common winter issues in UK homes. Here’s why it happens, what it means for your windows, and how to get rid of it ...

High indoor humidity is the main contributor to summer window condensation. Damaged, unsealed, or poorly insulated windows can cause summer window condensation. Poor airflow and blocked vents also ...

Here's the thing, though: cleaning matters more than the spray itself. I picked a Saturday and went through the whole house with Windex first—some of those windows hadn't been touched in a while.