Overheating is the #1 laptop killer! We Fix Laptops that overheat! Overheating can be dangerous to the machine, and can cause hardware to fail and possibly damage itself. Don't wait until it becomes a bigger problem, let JTG Systems make your laptops and notebooks run like new again! Laptop Over heating repair in Niagara / Welland / St.Catharines. Fan repair for Laptop Over heating repair in Niagara / Welland / St.Catharines. laptop overheating has been linked to house fires and other bad things like battery bulging or exploding in your laptop or on your bed.