The Winthrop Fire Department responded to multiple reports of frozen and burst pipes at four separate locations on Sunday afternoon.
The incidents all happened within 40 minutes of one another.
"This freezing cold is causing issues with pipes throughout the town today," Chief Paul Flanagan said. "We are working to address them as quickly as we can and thank residents for their patience."
The fire department received reports of a leak in the sprinkler system at the Winthrop Middle-High School around 3 p.m.
A sprinkler line froze and burst causing water to go into the cafeteria and band room on the first floor of the school.
The water was isolated to the first floor and went mostly onto concrete floors. Fire Department personnel and school officials were on scene working to clean up the water and repairs were being made to the pipes.
School is scheduled to be open Monday.
Around the same time, the Winthrop fire department received calls from three separate housing complexes that were reporting similar issues.
The calls came in from a 45-unit condominium complex at 550 Pleasant Street, a 16-unit condominium complex at 142 Pleasant Street, and at 90 units of assisted and independent living for the elderly and disabled at 46 Lincoln Street (15 units were affected).
All of the incidents were related to the sprinkler systems, which were shut off while repairs are being made.