10+ Years of Experience
Comfort You Can Feel, Service You Can Trust.
Your trusted, licensed, and insured HVAC experts serving Maryland, Washington DC, and Virginia. Same-day and emergency services available.
Providing the DMV With Superior Heating & Cooling Solutions
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Our Services
At JLOH Heating and Cooling Services LLC, we offer a full range of heating, cooling, and indoor air quality solutions designed to keep your home or business comfortable, energy efficient, and safe all year round.
Cooling Solutions
Beat the summer heat with expert AC installation, fast repairs, and seasonal tune-ups. We work with top brands to deliver long-lasting, energy-efficient performance.
Heating Systems
Stay warm during winter with reliable furnace installations, heat pump repairs, and boiler maintenance all tailored to your property’s needs.
Air Quality Solutions
Breathe cleaner air with duct cleaning, HEPA filtration, UV light systems, and humidity control for a healthier indoor environment.
HVAC System Diagnostics
We provide detailed system evaluations, airflow balancing, thermostat calibration, and advanced troubleshooting to keep your system running at peak performance.
Energy Efficiency Upgrades
Lower your energy bills with smart thermostats, high efficiency HVAC units, and insulation consultations for maximum savings.
Preventive Maintenance Plans
Protect your investment with customized maintenance packages, priority service, and seasonal system readiness checks.
Why Choose Us
What Sets Us Apart
Perfection Anytime
We pride ourselves on delivering flawless workmanship, whether it’s a simple repair or a full system installation. Every job is completed with precision and attention to detail.
24/7 Communication
We’re here when you need us day or night. Our team is ready to answer your questions, schedule service, and provide updates every step of the way.
Fully Equipped Fleet
Our service vehicles are stocked with advanced tools and parts, allowing us to resolve most issues in a single visit and minimize downtime.
Emergency Help
Heating or cooling failure can’t wait. That’s why we offer rapid emergency response to restore comfort to your home or business.
Advanced Technology
From smart thermostats to high-efficiency systems, we use the latest HVAC innovations to ensure optimal performance and energy savings.
Licensed & Insured Professionals
Our certified technicians are trained to handle all HVAC brands and models, giving you peace of mind that your comfort is in expert hands.
Request Info
Looking for reliable heating, cooling, or air quality solutions in Maryland, DC, or Virginia? Our licensed HVAC specialists are ready to help with fast service, clear pricing, and expert results whether it’s an urgent repair, a new installation, or seasonal maintenance.
We believe every job starts with listening to your needs. Tell us more about your project or issue, and we’ll provide a prompt, no obligation quote. From AC installations to furnace repairs, duct cleaning to smart thermostat upgrades JLOH Heating and Cooling Services LLC delivers comfort and peace of mind.
- Fast response for urgent HVAC issues
- Licensed & insured technicians
- Transparent, upfront pricing
- Serving residential & commercial properties
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Jude Loh is an outstanding technician who quickly and thoroughly diagnosed a problem we were having with both heating and cooling with our AquaTherm system. He is very conscientious and articulate about explaining the recommended solution with quick follow through. When we asked him to replace our smart thermostat he quickly understood why and replaced it with a new one we had on hand. I highly recommend JLOH Heating and Cooling Service because you get prompt, effective, and caring results from them.
I'm so impressed with JLOH Heating & Cooling services LLC! Their team is professional, friendly, and did an amazing job with our heating system installation. They were on time, efficient, and explained everything clearly. Highly recommend them for all your HVAC needs! 🌟👍
No matter the times i called for my hvac problem they Always show up and fix the problem i recommend you this company for your HVAC problem.
I highly recommend JLoh HVAC Services. They offer the best HVAC services .
Thank you so much for the great service from the first day In my house to my company office your services are outstanding we really appreciate and will be using you for all our warehouse in the DMV area
Kudos guys for the amazing and comforting services you render
JLOH heating and cooling services has the magical wand for all your HVAC services. Just call and see them do your work with love, passion and dedication. JLOH heating and cooling services team are like nurses, ensuring you and your family breaths clean air. Just give them a shot and thank me later
Good job guys , i highly recommend your services