Find the 2 Best Air Conditioning Companies in Upper Marlboro, MD

Horizon Mechanical provides comprehensive HVAC and mechanical solutions for commercial clients. Specializing in installation, maintenance, and retrofitting of heating, cooling, and energy management systems, we serve businesses and institutions requiring uninterrupted climate control. Our factory-certified technicians deliver energy-efficient, code-compliant services tailored to mission-critical environments.

J & P Heating & Air Conditioning provides expert HVAC services in the Washington, DC Metro area since 1969. We specialize in heating, cooling, and air quality solutions with 24/7 emergency repairs and maintenance contracts. Our family-owned business prioritizes honest service, competitive pricing, and energy-efficient results for homeowners and real estate clients.