About
Your Trusted HVAC Partner in the DMV Area
At JLOH Heating and Cooling Services LLC, we specialize in delivering precision engineered HVAC solutions with a strong focus on comfort, reliability, and energy efficiency.
Our team of certified professionals brings years of hands on experience and technical expertise to every project, whether it’s a small repair, a system upgrade, or a full installation. We believe in a customer-first approach, ensuring every service is tailored to your unique needs.
Founded in 2024 and headquartered in Severn, Maryland (21144), we proudly serve residential, commercial, and industrial clients throughout Maryland, Washington DC, and Northern Virginia. Our goal is to provide honest, professional service with unmatched attention to detail.
Our Mission
To be the DMV’s most trusted HVAC service provider by combining advanced technical skill, transparent pricing, and exceptional customer care.
What We Offer
Cooling Services – Central AC installation, AC repairs, preventive maintenance, and smart thermostat setups.
Heating Services – Furnaces, boilers, heat pumps, and emergency heating repairs.
HVAC Diagnostics – System evaluations, airflow balancing, and thermostat calibration.
Air Quality Solutions – Duct cleaning, filtration systems, UV lights, and humidity control.
Energy Efficiency – SEER-rated recommendations, smart automation, and insulation consultations.
Maintenance Plans – Custom seasonal service packages for long-term comfort and savings.