The thirteenth season premiered in the UK between July 6 to July 26, 2006 on Cbeebies. In the US, the thirteenth season premiered between November 4 to December 2, 2006 on PBS and debuted on Sprout in 2007.
| || Episode|
US title (bottom)
|"Spud Rushes It"|
|Bob and the machines make a watering system for Farmer Pickles' new orchard.
|"Scrambler's Seaweed Delivery"|
|When Bob builds a seaweed farm for Annie Pickles, Scrambler volunteers to help collect the seaweed from the beach and bring it to the garden.
|The team starts work on Annie Pickles' new seafront house, but Muck does not concentrate on the task in hand.
|"Roley's Apple Press"|
|Roley wants to help with the apple harvest, but is not much use, so Bob finds something he can do much better.
|"Travis's Giddy Day"|
|The machines build a goat run for Farmer Pickles' newest arrival.
|"Muck's Drying Tunnel"|
|Bob builds a drying tunnel for Annie's seaweed and a rotary washing line for Mr. Beasley.
|"Benny's Jungle Trouble"|
|Benny gets the wrong idea about a conversation he overheard and heads off into marshland, looking for jungle animals.
|"Dizzy the Walking Bus"|
|Dizzy tries to help the children get to school, but new road signs confuse them.
|"Packer's First Day"|
|Packer arrives in Sunflower Valley, but he finds it very difficult to concentrate on the task at hand.
|"The Bob House"|
|Bob designs a house with the help of his father, while Mr. and Mrs. Bentley conduct a survey.|
- Farmer Pickles
- Mr. Bernard Bentley
- Mrs. Barbara Bentley
- Angelo Sabatini
- Mr. Beasley
|Project: Build It|
|Ready, Steady, Build!|