Employees (above) from TTS Group Ltd, Kirkby, helped to improve an overgrown area of the grounds at Berry Hill Primary School, Mansfield.
It was the third time the educational resource company had worked at the school, this time creating an outdoor learning space for nursery children.
TTS undertake team challenges in schools in the community.
The schools said it would have cost £9,000 for a grounds maintenance company to have completed the work.
Mansfield District Council took away some of the waste vegetation.
Nursery teacher Sarah Woods said: “I am grateful to TTS for allowing their staff to take time out of their working week to come and help us.
“I want to thank the team of five people who worked extremely hard clearing weeds, cutting undergrowth back and helping clear our outdoor area.
“I cannot believe what they achieved in one day.”
Matt Gull, European account manager for TTS Group Ltd, said: “The whole team thoroughly enjoyed the experience.”