Openreach has seen the number of network faults reported by members of the public double as a result of the recent severe weather.
BT's infrastructure division has been working round the clock to repair damaged networks, in order to restore broadband and home phone services in many areas.
But as consumers continue to report network faults, the company faces a significant backlog of engineering work.
As reported by Recombu, an Openreach spokesperson said the company is, out of necessity, prioritising network repairs.
"The issues being raised often represent a safety risk to members of the public and our engineers," the representative noted.
“Overall contact performance and especially provision contacts, has been extremely challenging over the last few weeks."
This situation is unlikely to change over the coming weeks, the spokesperson added, meaning Openreach faces a difficult start to the year.
Severe storms in the autumn caused similar problems for the BT infrastructure specialist - more than 200,000 UK homes and businesses suffered outages during the previous wave of bad weather.