I feel sick 
The gas people wrote to me a couple of months ago saying the pipes need replacing. Fair enough. Last Wednesday from 8am there were 2 men in hi vis jackets prowling around. Eventually arrived at my door (open to allow carpet fitters access, they originally tried to just walk in but nice carpet man stopped him) mid morning, and high-handedly informed me they would be coming to replace my meter and they needed to look around - said as he walked towards me so i was forced to back off. Discovered that planned place doesn't work for my property. I said i would consider giving permission provided i was informed officially in writing.
Thursday they knocked at 8.30 am (having been prowling around since 8 again) to say they wouldn't be doing as much.
Monday they came back, trailed a nice trippy wire across the terrace and cranked up the generator. At 8am. They started drilling in the walls.
Continued yesterday, they are fitting a new gas pipe externally - it goes across each flat above the front door. It's hideous.
At no point have i (owner) or my mum (joint owner) been informed or consulted. I've seen no ID, nor ny plans, nor been notified of work. Just a slightly intimidating pair peering through my front window from early morning.
Confrontation ahoy, they're not here yet...