A DODGY BUILDER TO AVOID- AT ALL COSTS.

I don't mind slagging off big multi national companies, it can't do them any harm to tell them where they're going wrong can it? I mean, sometimes their size can mean that the left big toe doesn't know what the right thumb is doing. But smaller companies are different, it's harder to 'not know' what is going on with the business or how their employees conduct themselves and how they work.
I'm bringing up this lot of builders, mainly because of the awful 'work' (industrial vandalism is a better term) they did in the house of someone I know, and because of their behaviour afterwards. The resident of the lower flat of the house that they worked on (and that I was gardening for) had the home utterly ruined by the worst bodge job I have honestly ever seen, no exaggeration, and it wasn't even on the same floor.
The damage has extended right down to the basement flat and into the actual foundations, despite the builders working only on the two top floors!
The situation could quite possibly end up with the whole back portion of the house soon needing removing, as well as the foundations needing serious work done to them. Disrupting the resident as well the surrounding residents for months, and costing a small fortune.
When I contacted the company about their work standards and the much needed repairs on damage they had caused, they just hung up the phone on me, despite my self restraint and the use of my best 'polite phone voice'. They took or accepted no accountability for their actions at all, and told a whopper of a lie, denying ever working on the property at all during one phone call.
None of their workers spoke a single word of English which is ludicrous, when working in a dangerous situation in a built up area like ours just one English speaker on the job can be enough for safety reasons, when you have people working with gas or water and electricity, the ability to communicate can be essential if something goes wrong, your average 'Peter and Jane' don't usually tend to speak much Polish, and the time it would take to go through the frantic sign language can be long enough to cause big trouble, for them if one was injured, or the residents around them if serious problems like fire or big gas leaks arise.
What has made my decision to name this particular company is the fact that I have been seeing their logo on vans round here quite a lot lately (they are situated round here somewhere I've just been told), and God forbid they should end up working on any properties near my home, like much of the areas buildings, it's over a hundred years old, and could stand very happily for another hundred if treated correctly, but with that lot in charge? it could collapse in ten years.
I know I'm not the BBC and don't have tens of thousands of locals reading this, but if one person needing work done reads this and doesn't use them despite their enticingly cheap prices, it's at least something.
The name of these cowboys is MNM, and based purely on my previous experiences with them, I advise everyone to avoid them like the plague. They're not one of the cheapest companies around for no reason, their undercutting every other price just to get the job is not a healthy reason to employ them to my mind, a cheap company can only do cheap work with the cheapest of materials, which can end up with a person having to get a different company in to repair the repairs (which is what happened in 'my' experience, costing the person I know lots of cash which was the result of work done on the flat above, not fair I say). I would not let that company fit a toilet roll onto it's holder, let alone totally refurbish a whole house or flat. And not in this area as well, most of this part of London sits on a giant clay bed which moves the houses side to side or front to back every season depending on rainfall, or lack of, potentially pulling their shoddy work to pieces.
Like I said, the worst builders I've ever encountered.
Their name is MNM, don't forget.
One more time, MNM.