The Parks and Trees Division is responsible for removing all dead trees on town property as well as those that are a danger to the public. Additional responsibilities include trimming and cutting back brush along town roadways. This section's duties also include maintaining facilities for the Recreation Department such as baseball and soccer fields.
Other areas maintained are the Town Common, Billerica Public Library, Town Hall, Billerica Police Station, Kids Konnection, and 25 different squares located throughout the town. Other tasks include plowing snow, hanging banners, assisting other divisions, changing traffic light bulbs, and emptying trash receptacles.
In addition, this division has taken on the task of treating the town's catch basins with larvicide in an attempt to eradicate Culex Mosquitoes which are known to carry the West Nile Virus.