Posting more for advice than an AIBU I'll be straight sorry folks! (Traffic!)
I've lived in my home for 5 and a half years and my landlord used to be terrific. If we had a problem he'd be out, 2 years ago he decided to do it through an agency which is fine.
However the past 12 months we've had a lot of issues with the house.
- the strong storms at the beginning of the year knocked a lot of tiles loose, and the guttering was blocked. Meaning damp was slowly coming in also the tiles were dangerously on the edge where they could fall off in another wind and hit one of us.
We told agency back in January.
I then reminded them every 4 weeks about it, until July they finally agreed to send someone out as I discovered mould behind my sons wallpaper.
July comes and goes, nobody comes out. I chase them through august "yes someone will be out soon."
September I speak to the manager and he told me he thought someone had been out and done the work in July. (Clearly a lie as they'd of had to have quotes and a bill?)
Eventually someone comes out in September and the work is done.
- in February we had a leak behind the sink. It took two plumbers on two different days to work out it was behind the backboard. They rip it out and fix it. Fine.
I tell the agency the backboard needs replacing because it gets cold in that cupboard and it will eventually get damp and on that backboard is an electrical socket I need for my washing machine.
I remind them every month, NOTHING IS DONE.
Today my electric trips out. Takes us two hours to find out it's in the kitchen and surprise surprise it's the broken backboard socket tripping everything and has water all over the socket (from the damp.)
Now I have no socket and no washing machine.
I know it's going to be a nightmare getting them out to repair this I've been trying for nine months.
How the heck do I get them to take me seriously about these repairs? The house is becoming very damp and dangerous because they just won't do simple repairs in a decent time frame! 
I'm a good tenant. I've looked after the house and garden, I've always paid my rent on time (heck I'm a month ahead!) so I don't understand why they won't help look after the house?