Tony didn't do the installation himself, but the two guys who did the work were friendly, polite and fast working. They managed to install my hi-tech cat flap (Pet Porte Smart Flap) despite not having seen one before, with just a small amount of trial and error. They also replaced a broken kitchen window with no problems at all. Great to be able to pay by card.
Tony was always responsive to my text messages / calls, despite his clearly busy schedule. The only minor thing that could have been improved was the communication from his side - it took three appointments before he came to do the quote and measurements, and I had to contact him twice after that to find out when they would be coming to install the new glass, despite being promised a call back. Still, the work was completed fast and with no problems, so I would recommend using Tony!