Kevin and his crew, from Gennaro, did an amazing job for us in fitting our extension with a new 'floor to gable high' structural aluminium frame and double glazed window units together with a full height side window panel. The units fitted perfectly and were installed most efficiently and with good cheer; despite the temperature being sub-zero (we kept them in hot coffee, tea and biscuits). The finish on the installation was superb and the guys tided everything away perfectly as well as removing the previous installation. The room looks amazing from inside and out and is very much warmer and quieter than before. Kevin was very helpful and thorough in helping with the design, in deciding on the specification and in measuring up. We can thoroughly recommend Gennaro - very pleased indeed.