We had Bay Area Air Conditioning come to our home on a Sunday. (We had used them a couple of years ago for an unrelated issue) Our heat went out in the morning and their representative Matt came out. He arrived earlier than promised and diagnosed the issue quickly. He had the system working within an hour and explained everything he needed to do. Even though it was a Sunday the cost for the service call and repair was much less than we feared it might be. Would highly recommend Bay Area and they will have all of our business in the future.