[I've revised my overall score up one letter grade, to a C. The fact is, at the end of the proverbial day, Hammond's crew was persistent and got the job done. Brandon also followed up personally to address lingering concerns. I would have liked better communication between visits and when the crew was there about what was happening, and three visits to make things right vs. two. But those concerns are secondary to having a working satisfactory system. I was a little harsh with my D grade, and I acknowledge that.] Cliff?s Notes version: If you?re looking for an HVAC contractor that will get you a decent solution for a decent price and you don?t have extremely high expectations or standards, Hammond Air Conditioning may be worth a look. If you expect professional, proactive communication from the people actually doing the work?before, during and after the job?or on-time performance for big jobs, these aren?t your guys. Unabridged version: I had Brandon and his team replace a heat pump at my former home in Mandarin in 2010, and things overall went pretty smoothly. My wife and I had them service the heat pump in our new home in Ortega Forest earlier this year, and likewise, the job was well done and at a fair price. That gave us confidence to call them in once more for a much larger and more expensive project, to replace the antiquated, furnace-based metal duct system that came with our new home. We scheduled the job with Brandon for two full days in early March 2014. It was obvious from the get-go that the crew for this job didn't understand or at least stoically accept some of the challenges of dealing with an older property, which were clearly indicated on the work estimate Brandon gave us. We heard our share of griping about having to cut new registers into our plaster ceiling, as if they didn't understand that was necessary due to our existing wall-based registers that were not designed for heating and cooling. The estimate also indicated a willingness to cut return ducts ?at agreed upon areas with homeowner.? The crew never consulted with my wife or me about where anything would be cut until it was too late. We understand the limitations of our attic and narrowly placed beams, but the crew didn?t explain any of these limitations or implications for where returns could be placed. Then there are the little things they missed. Several return grilles were not cut square with the ceiling joints. And only today, nearly a month after work started, did the crew seal up the opening where the old return duct went into the air handler. That exposed our garage (and our inquisitive and, eventually, muddy cats) to the crawl space under the house, for which we used a piece of plywood as a makeshift seal. It goes without saying that this was not a customer service-oriented crew. They?d take off for lunch, breaks or even leave for the day without so much as a heads-up to either me or my wife. Most days they seemed eager just to get through with their work and get out. We would have hoped for at least a walk-through at the end of each visit to share with us all that they?d done and to make sure we were satisfied with air flow. It took two more visits over nearly a month?over and above the original two-day job that ballooned into three full days?to address air flow concerns to our satisfaction. That includes one visit where the tech was a full two hours late and never gave me a heads-up call until he was at my door and I was ready to give up and go back to work. Brandon is a good communicator and customer service-oriented, and I appreciate his coming out this most recent third visit to observe the areas of concern voiced by my wife. It seems that the people he employs may not share that customer service orientation, or practice proactive communication with customers. And that?s a shame, because those are the folks who create your experience. I don?t know if we?ll have another experience with Hammond Air, certainly not for a job of this magnitude.