Adrian from DeMarco Mechanical Services installed a new gas line and gas oven, we were so impressed with his work we asked him to install a new air conditioning unit for our house. Adrian is extremely knowledgeable, professional, experienced and considerate. He communicates promptly and is honest. Adrian purchased our AC unit and arrived as planned the next day for a seamless installation with no damage to drywall or our home. He works with expertise and I found the whole process completely stress free. I wouldnt hesitate to recommend Adrian for any HVAC needs, his prices are good/competitive, he is very clean, organized and respectful of your home, but most importantly- he has the knowledge and experience to do the work correctly.