Here is a classic example of how engineers cut corners when fitting TV Aerials.
As you can see from this video the bottom tv aerial is new and has been clamped to an existing old rusty mast, the weight and condition of the pole with a bit of bad weather has caused the pole to snap.
In this situation the engineer should have at least informed the customer of what condition it was in, but probably fitted and charged as a new installation.
Here is the completed job.https://tvaerials.biz/vid-20190220-wa0002-mp4/
If you require any help with your faulty aerials or require some upgrades get in touch.
Ask for Andy or Bob www.tvaerials.biz