The third season premiered in the UK between December 24th, 1999 to April 1st, 2000 on BBC. In the US, the third season premiered between July 4th to September 26th, 2001 on Nick Jr. and was also later re-shown on Noggin, PBS and PBS Kids Sprout.
| || Episode|
US title (bottom)
|Bob gets some new boots. Spud, meanwhile, challenges Bird to a race and eats right out of Bob's lunchbox.
|Bob tries to wash down Scoop and Muck who are both covered in mud, but Muck doesn't want to get washed because he (She US Dub) loves being mucky. Travis also gets stuck in the mud and Bob, Muck and Dizzy have to rescue him.
|"Bob's Day Off"|
|Bob takes a day off so he can photograph the rare Blue-Crested Warbler. But when the computer breaks down, Wendy needs him back for some urgent jobs.
|Wendy is turning an old railway line into a bicycle path and Bob is turning an old rubbish dump into a park. But while Lofty is removing the rails using a magnet, he has to retrieve Mr. Bentley's pen in the process.
|While building a bus stop, Roley almost runs over a tortoise, he names Timmy. Dizzy reveals it belongs to Mrs. Potts, but while Bob takes some cabbages from Travis's trailer, Timmy sneaks onboard.
|"Special Delivery Spud"|
|Bob and Wendy have ordered new saws. However, Mr. Dixon's van breaks down so Spud tries to take over. But Spud can't read and gets all the parcels mixed up, sending them to the wrong houses.
|Bob's gang are building Mr. Beasley's new conservatory, but they forgot to feed Pilchard her breakfast, forcing her to fend for herself and find someone to feed her.
|"Scoop's In Charge"|
|Bob and Wendy are attending lunch at the town hall, so they leave Scoop in charge of building the Mayor's garage.
|"Scoop Has Some Fun"|
|Spud tries to persuade Scoop to help him play some tricks, but Spud frightens Lofty so much that he falls onto his side. Scoop thinks this was another one of Spud's tricks, but Bob decides to make sure.
|"Dizzy's Crazy Paving"|
|While the machines are building a new path for Mrs. Potts, she won't let Roley work on it because she thinks he will crush all the flowerbeds. Roley decides to supervise Wendy with the hand-roller.
|"Spud and Squawk"|
|Bob, Wendy and the machines are building a new carpark. Spud is trying to shake off a persistent crow that is following him everywhere. He tries using Travis to blow it off, but while swerving to avoid Muck, he spills his load.
|Bob's gang is working on a tunnel overnight. Muck stays at the farm with Travis, but he gets scared of the dark and the scary noises Spud is making and goes missing. When investigating the sound of an owl, Pilchard also goes missing.
|Travis is delivering a load of gravel, while Scoop helps. However, Spud unhooks the trailer to give Travis a rest and it rolls away.|
- Farmer Pickles
- Mrs. Potts
- Mrs. Broadbent
- Mrs. Percival
- Bunty Ferguson (mentioned)
- Mr. Beasley (mentioned)
- Mr. Fothergill (Bob's Day Off) (not named)
- Mr. Bernard Bentley (Magnetic Lofty)
- Tommy (Roley's Tortoise)
- Mr. Dixon (Special Delivery Spud)
- Squawk (Spud and Squawk) (not named)
- This season will be the first time Bob wears the red screwdriver (Wendy wears the red screwdriver between Seasons 2-16).
- This season marks the first appearances of Mr. Bernard Bentley, Mr. Fothergill, Tommy, Mr. Dixon and Squawk
|Project: Build It|