There’s supposed to be moves by government to force networks to share infrastructure with each other. I think that’s a sensible approach – if gas, electric, telephone and train networks can all share an infrastructure between multiple private companies, why can’t mobile companies? Individually, none of them have great coverage, but between them surely coverage should be better!
The merger of Orange and T-Mobile into EE, and more recently the buy-out of O2 by Three, could see multiple companies merge networks anyway, which will hopefully see an improvement.
As for Three – they had historical problems in Wrexham where the mast was working, but it’s BT-managed broadband connection was faulty and Three had to wait for BT to repair it. Their explanation seemed fair enough, but the problem was how long it was taking to fix, but you’ll recall I was able to pressure them to bring the repair forward after starting this petition: https://www.change.org/p/fix-the-3g-network-in-wrexham
Since then, Three has seemed to work fairly well for me around town until last week when there was another mast fault which left me with no signal at all. But checking with Three, they let me know that was scheduled to be fixed by 16th August, so hopefully is all working again now, at least for people on Three network.
However, the ofcom map is still, at the very least, an optimistic view of coverage, especially in areas further out of town. I actually live in Rhosllanerchrugog, and most coverage maps do recognise that there is no indoor coverage here, but they all claim that there is acceptable outdoor coverage. But in practice, outdoor coverage is very patchy … from about halfway down the hill, it is fine, but on top of the hill there is next to no outdoor coverage on any network. I only get by because I got Three to give me a HomeSignal box which acts as a mini-mast just to cover my own home.