I had used Carrano for an emergency repair of my HVAC several years ago and called upon them recently to repair a HVAC issue caused by a weather related power surge. I had not considered using any other contractor. Their team is extremely professional and customer focused. Following this repair, I asked them to quote on the replacement of the furnace flue pipe (~12 feet in length) which was out of code and had become corroded. Their price was beyond my view of a reasonable estimate and was approximately $1,900 for material and labor. I asked for a breakdown between the material required and labor but did not receive a response. I received a referral to a local contractor (with 40 years of experience) and based on describing the problem and after reviewing photos of the piping, they estimated the work at less than $500; the work was eventually completed at half that cost. While I expect to see price estimates that vary by contractor, the extreme disparity in Carrano's quote raised concerns about their credibility; they lost my future business and any referrals.