Residents with frozen pipes are urged to be patient.
Sarnia Public Works has received some 65 calls for frozen pipes over the last week and a half.
Operations Manager Bryan Prouse says they're doing their best to keep up, but it takes time for crews to thaw the service by pumping hot water into it.
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In the meantime, Lambton Public Health has issued its seventh cold weather alert of the season.
The temperature is expected to drop to -16°C Wednesday night and below -20°C on Thursday.
Environmental Health Specialist Paul Buttery says Thursday will be another day for children at local daycares and schools to stay inside.
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The current alert will remain in effect for the remainder of the week.
