I am switching from sky+ to sky Q will the engineer use the same sky wire
@dtgbswacm09 Depends on the current condition of the existing cables
@dtgbswacm09 If it's any help, when I had Sky Q installed, the engineer was happy to use the existing cables which had been in place for at least 10 years and were still perfectly serviceable, but offered me the choice of new cables.
In addition to the above I will cc in one of the other Superusers who has compiled a help guide for those transitioning from Plus to Q which may provide something you hadn't considered.
cc @nigea99
hi @dtgbswacm09
As @Daniel0210 mentions, you may, also, wish to read some notes I have made for people considering switching from SKY +/HD to SKY Q