I got a decent quote from a local alarm company. 4 x 4mp and a 4 tb hard drive nvr. Supplied and fitted £1300. Dahua kit , never heard of them until good old Google helped , a really big noise in cctv.
The wife and I walked the dog around a very large section of the various estates near me and was surprised on the number of houses which have alarm boxes outside, the company that had the largest number of boxes by a country mile is the guy that gave me qoute .
Another local guy quoted nearly £2k for much the same thing. I contacted another company and twice he let me down with a demo . Do it now ! Your a long time dead !!

Finally ordered the cctv with a slight amendment.. 3x4mp cameras for the front and side of the house and 1 6mp for the rear . A 4tb nvr with a 3yr warranty for £1365 supplied and fitted. Do it now ! Your a long time dead !!