Had a new aerial fitted in July and due to bird mess on my roof I wanted bird spikes fitted to deter the roosting pigeons. Within a week of fitting the aerial the electrical tape they had used to secure the bird spikes to the aerial was unravelling and flapping in the wind. Asked the company to come back and secure the bird spikes more securely before they fall off but I was told if I wanted them to get on roof to work on the aerial they would only remove the bird spikes because they "could not guarantee they would stay on". A pity this was not made clear when they quoted for and carried out the installation (which was "guaranteed" ??). I have researched the use of these bird spikes and how they should be properly secured to the aerial (using a PU adhesive and zip ties) so I was not happy with the unhelpful attitude and poor excuses given not to do the remedial work. They clearly did not want to do anything and I will not be using again. The "warranty" is worthless so beware.