Birmingham Glass Services Ltd in Birmingham

PLEASE DO NOT USE THIS COMPANY!
Birmingham Glass rendered our entire property several years ago.
The render started to crack within 2 weeks!
They removed the render from the one wall and replaced with new.
Then another wall cracked and started to fall off.
At this point Birmingham Glass decided to walk away from us.
They refuse to answer calls or reply to letters. In fact the owner puts the phone down on us when we call. The company correcting the work have stated the mix wasn't right and they missed a critical step in the rendering process. To the point that the render was dangerous. We were told that we were lucky that it hadn't fallen on someone or a car.
PLEASE DO NOT USE THIS COMPANY!!!