I have just completed my HGV C training and test with Sirens. These guys are very professional all ex military and/or police with extensive experience of HGV driving, they know what they are talking about and teaching. Training is disciplined but friendly and informal at the same time. I would like to thank Steve (the boss), Steve, Wayne and massive big thanks to Craig my main instructor and mentor who gave praise when due and also a friendly bollocking when necessary. I cannot recommend these guys highly enough, a real professional outfit. If I decide to do more training in the future it will be only with Sirens.