We have been using Day & Night Mechanical Solutions Inc. for over two years, and their service is just amazing! Their workers are very friendly, and they show up promptly, and on time! Sharmain does a great job on customer service. They recently installed a new furnace for us, and a couple of the wires were crossed in it. They fixed it immediately, and then they even came back to double check it for us - to make sure everything was still working right. On a weekend, no less! That is just above and beyond in my opinion!