What they lack in size, ants make up for in numbers. It’s normal to see the odd wandering ant in your home during the summer months however you will soon know when you have a real problem. It’s always a good idea to keep your doors and windows closed when something like what you’ll see in the video happens.
You can try to treat the problem yourself before calling a pest control specialist. There are many remedies for ants but should you find the problem is not getting better you’re best to call a specialist before the problem gets out of hand.