Hi Nick,
In Bradford on Avon we're with Your Co-op (formerly the Phone Co-op). It's actually a residential contract rather than business, which I moved from my home when arriving in Bradford on Avon as Warden in 2012. Since 2021, we're on the 'Unlimited Superfast Plus' broadband supply and paid a bit of extra for the best router rather than the standard one. The wifi router sits in my flat, just above our main meeting room, and offers good coverage almost throughout the entire building. The only exception is our small meeting room. For this we use a plug-in wifi range extender that cost about 20 pounds.
All pretty good and reliable. Most importantly, you actually get to speak to a real person here in the UK when you do need help.
Best wishes,
Klaus Huber
Resident Warden, Bradford on Avon