Individual keys for laptop keyboards can be purchased through local computer parts distributors and Internet retailers that specialize in laptop parts, such as the Laptop Key's website or Machina Electronics. Most vendors sell full key-replacement kits that include the key, hinge clip, and rubber cup or spring.
To get the correct replacement kit for the laptop, make sure to have the laptop's model and serial number available. Single replacement key kits typically range in price from $5 to $10 before taxes and shipping costs are applied. Most online vendors also provide video or written installation guides for each type of replacement kit. If the tabs that hold the hinge in place are broken off, the entire keyboard may need to be replaced.