You can trust in us for all of your Plumbing and HVAC requirements. We specialize in water heaters, sewer lines, leaking pipes, faucets, toilets, water lines and more! Whether you are looking to get a new furnace or need service to fix an existing unit, CMC is the one to phone. COOLING.When you are looking to get a jump on your ac repairs the best option is to turn to CMC Plumbing, Heating and Cooling. FROM OUR CUSTOMERS. ABOUT CMC.Our assignment has established the industry standard for excellence in client service and satisfaction.