Mahdi Poursiami

Potomac HVAC was founded by Mahdi Poursiami, an experienced HVAC professional dedicated to providing reliable, high-quality heating and cooling solutions for residential and commercial customers. Since 2014, he has built the company on a foundation of honesty, technical expertise, and attention to detail, earning the trust of homeowners, business owners, and property managers throughout the region.

Mahdi holds Master HVAC/R licenses in both Maryland and Virginia, along with a Master Electrician license, providing the expertise to manage complex HVAC and electrical systems safely and professionally. His credentials reflect years of hands-on experience and a commitment to meeting the highest professional standards.

He is also factory certified for Bryant Evolution and Carrier Infinity communicating systems, with advanced training in:

• Evolution & Infinity Communicating Controls
• Heat Pump Systems
• Air Conditioning Condensing Units
• High-Efficiency HVAC Systems
• Air Handlers and Fan Coil Units
• Modern Airflow Design
• HVAC Zoning Systems
• System Diagnostics and Performance Optimization

Every installation and repair is completed using proven industry best practices, including accurate diagnostics, proper airflow design, professional commissioning, and comprehensive system testing. Mahdi believes that quality workmanship is about more than installing equipment—it’s about delivering dependable comfort, maximizing energy efficiency, and building long-term relationships with every customer.

At Potomac HVAC, our goal is simple: provide honest recommendations, exceptional craftsmanship, and HVAC solutions that our customers can rely on for years to come.