Nerd On Call is a provider of maintainance and repair services for computers. This Diamond Bar-based business has been active since 2007, providing service to commercial and residential clients in Diamond Bar, San Dimas, Chino, Walnut and Pomona. Services are for both Mac and PC. Standard services offered include PC tuneups, removal of adware and spyware, start-up programs and hardware installation. For all other offered services, an estimate is given beforehand and the client and technician take it from there. Free estimates are available. Nerd On Call also offers installation services for TVs and home theater systems. Visit Nerd On Call's website for information on upcoming and current specials.