Spiders are mainly attracted to the insects in your home, which are their primary food source. ... Warmth is very attractive to spiders – during cold months spiders seek shelter; Water – some spiders don't even require water. But if there are any which do, they'd prefer to drink water from sink taps or bathtubs.
Why do I suddenly have lots of spiders in my house?
It's completely normal. The combination of warm and wet weather this summer means there have been more insects for spiders to eat. ... Keeping your windows and doors closed will also make sure spiders can't get in as much - but nothing will get rid of them altogether. They will always find a way to get inside.