We are so pleased with One Call, the owner Dave came out the same day. He provided us with a lot of useful information about our vents and what types of filters would provide us with more efficiency. We knew our system had to be replaced, we had another company look at it as well but One Call was able to do it quicker and less expensively, using a quality system with a 10 year guarantee. It is very hard to find business like One Call, and I feel fortunate that the operate in my area and I was able to take advantage of their great service. read more