It’s common for the water in pipes to freeze when outside temperatures fall and remain below freezing for a long period of time.
Frozen pipes need attention as they can stop your plumbing working properly. They can also cause cracks and lead to leaks.
Thawing pipes can be difficult. You need to make sure you warm them up slowly and evenly so you don’t crack or burst them. Although you could do it yourself with a hairdryer or warm water, many homeowners prefer to get a professional in to sort out the problem.