2. Customers praise Cardinal Plumbing for their knowledgeable and professional plumbers who provide great service. The plumbers are efficient at finding and fixing leaks, clogs, and other plumbing issues, as well as providing helpful explanations and preventive maintenance tips, all with a friendly demeanor. 6. Unique facts about Cardinal Plumbing Heating & Air Inc include their team of local experts in Alexandria, VA, who understand common residential issues faced by residents in the area. They are committed to providing high-quality service and educating homeowners on preventive methods to avoid future major problems. 7. Cardinal Plumbing Heating & Air Inc specializes in providing high-quality HVAC and air-quality control, as well as plumbing services to ensure their customers' year-round comfort. Their certified team of experts is committed to solving problems quickly, efficiently, and correctly, with tailored solutions for common problems faced by residents in Alexandria, VA.