UPDATED: 4:38 p.m.
All four companies will be reopened by 8 a.m. Saturday.
The engine companies include Engine 1 at Broad and Fitzwater streets in South Philly, Engine 14 at Foulkrod and Darrah streets in Frankford, Engine 39 at Ridge Avenue and Cinnaminson Street in Roxborough, and Engine 8 at Fourth and Arch street in Old City.
Engine 8 was the first to officially return Friday afternoon, and many were at the ceremony to show their support, including Tabatha Adams, who lost her father in a Northeast house fire in February.
"I do think it's very important we have them in all communities, within seconds. Within seconds. Cause those seconds can save someone's life. Fire spreads very rapidly," she said.
The public is invited in welcoming back the companies.
The fire department continues to work toward restoring the remaining three companies: Engine 6 in Port Richmond, Ladder 1 in Francisville and Ladder 11 in South Philadelphia.