For most home PCs, a light dust-out every three to six months keeps temps and noise in check. Pets, carpets and poor ventilation mean more often.
Rising fan noise, hotter GPU or CPU numbers in games, or fur on the intake filters are signs, not emergencies. Still worth acting before the machine always runs hot.
A proper clean is more than ten seconds of compressed air. Filters, heatsinks, fan blades, and a quick look that paste and coolers still look healthy. We can collect across a lot of the Midlands for jobs like this.
Not sure what you need?
Pick a path, run Find my PC, or message with your games and budget. We will keep it practical.