I've had Comfort First Heating & Cooling come for the last year and a half to do my annual air conditioning and heating check. They provide prompt service every time. I have an annual contract with them, which is a set price. They call ahead to schedule the annual air conditioning and heating check. They're courteous; they're not trying to pressure you into any sales. They come in and do the job the way it's supposed to be done. They're very polite, and their prices are pretty good.