I can confidently recommend the guys from Excellent Plumbing. More information here - [url=
https://www.excellentplumbingus.com/ser ... zen-pipes/]Frozen Pipe Repair Services[/url]. I faced this problem, called the masters from this company, they turned out to be very sensible. My reason for freezing was not effective insulation. As the guys explained to me, so that pipes do not freeze in winter, they need to be insulated, and those places of pipes that pass through the foundation or brick walls need double insulation, since these materials are cooled faster than the ground.