Unfortunately, there is not much you can do to avoid or fix a frozen pipe.
To avoid frozen pipes, we recommend that you keep the whole property warm at all times. Although this does not always stop pipes freezing. If you have a frozen pipe, then increase the heat within the room that the pipe is servicing.
The only way to thaw the pipes is to slowly heat them. Please do not heat any pipework directly as this will cause the pipe to crack. It is generally a case of waiting for the temperature to increase.