We had bifold doors fitted 6 years ago by Ekco doors in Edinburgh who were introduced to us by Origin. All was well at first but very quickly we had condensation develop on the inside of the threshold and issues with the foam gaskets shrinking. This was reported to the fitters who replaced the gaskets and blamed that on the condensation. Since then I've had the gaskets changed annually as they keep shrinking and I've had numerous excuses for the condensation. They refitted the doors in February but it's made no difference, in fact if anything it's worse. Now the installer has refused to come back unless I pay £250 and have blanked every effort I have made to get a copy of the fitting warranty. I have foam gaskets that were supplied under warranty but the installer refuses to fit them unless I pay £250 which won't be happening. Origin for their part only want to pass the blame to the installer and take absolutely no responsibility for anything apart from manufacturing defects despite the fact they introduce you to the installer. I sent them a detailed email listing the problems I'm experiencing but it's been ignored. Do yourself a big favour and go elsewhere. Find a company that actually takes responsibility for their installers instead of ignoring things.