On the first day of the cold snap, we also suffered a frozen condensate pipe. The old lagging also fell apart with warm water poured on it... so I re-lagged it, thinking that we are renovating the kitchen and utility in the new year so will consider a better alternative for permanency...
It froze again the second night.
I tried to find a better "temp" solution. After a chat in the local plumbing merchant, I cut up one of those windscreen frost shield things i found in the garage, used a bit of tin foil underneath, on the jonts and bends and then re lagged over the top with some of B&Qs stuff. Not elegant but it has worked for the rest of the cold (so far).
P.S. there's a reason behind all the cable ties, it's designed to antagonise a mate with OCD.
Sent from my SM-G970F using Tapatalk