I am an Architect in Calgary and I will not recommend someone until I have worked with them several times and been commpletely satisfied with their work and attitude always. I have worked with Dave at Zebra on many jobs. Most recently he did the complete gas fitting for a custom house in Kelvin Grove in one long day - 9 outlets and appliances. His work was excellent (again). He is a pleasure to work with and a real problem solver. Super fair and honest! I highly recommend him.