Bob Budowniczy to serial dla najmłodszych. Fabuła skupia się na Bobie, pracowniku budowlanym, który wraz z przyjaciółmi wykonuje różne zlecenia, przy których potykają go różne przygody.
Bob is given the job of building a tool shed for Mr. Beasley, but gets called to an urgent job so hapless Mr. Beasley takes matters into his own hands.
During a demolition project, Lofty discovers some rabbits. Bob and the team have to catch the rabbits and put them into a special pen so that they won't get hurt.
Bob is building a water feature in Mrs Potts's garden. Then Muck mistakenly takes the stones to be used for the feature to the dump, rather than the rubble from the wall Wendy is demolishing. However, Scoop has a brainwave - why not use the stones from the demolished wall instead?
It's Wendy's Birthday, but she does not want any fuss. Bob organizes a magic Birthday show for her instead. Then Roley accidentally breaks a magic cabinet.