br br At Cynergy Mechanical Ltd., we provide all of your properties with a preventative maintenance program that guarantees that your system isn’t just running, but that it’s running at optimal levels. Our ability to work with a wide variety of organizations makes us your comprehensive resource for all HVAC, plumbing, backflow prevention, and refrigeration services. br br Preventive energy management and premium HVAC, plumbing, and refrigeration services at decreased costs start with us.