Screen Repair is the most common problem in Hong Kong including Samsung screen repair and Iphone screen repair. Some other models that are not as popular than Iphone and Samsung might cost more such as LG repairs, HTC repairs e.t.c. The best prevention is to protect your phone, say using the tempered glass screen protector, which can save your phone from being destroyed or scratched. Phone cases made of silicon can also reduce the chances of hitting the corners thus cracking the screen.