
ACCURATE HVAC LLC
The Kind Of Business You Tell Your Neighbour About
Specializing in precise duct leak detection and sealing using advanced infrared thermography and pressure testing techniques. Founded by veteran technician James O’Malley in 2010 after he discovered that most HVAC issues stemmed from undetected air leaks in ductwork—often overlooked because they’re invisible to the naked eye. With a focus on identifying and fixing these hidden inefficiencies, ACCURATE HVAC LLC ensures your system runs at peak performance while reducing energy waste.
Our story
Founded by veteran technician James O’Malley in 2010 after he discovered that most HVAC issues stemmed from undetected air leaks in ductwork—often overlooked because they’re invisible to the naked eye. With a focus on identifying and fixing these hidden inefficiencies, ACCURATE HVAC LLC ensures your system runs at peak performance while reducing energy waste.
Behind the scenes






Why ACCURATE HVAC LLC
Specialized in High-Rise HVAC Systems
As a solo operator with over 16 years of experience in the Chicago area, I’ve focused exclusively on high-rise and skyscraper HVAC systems. These complex environments require precision engineering, specialized troubleshooting, and a deep understanding of vertical airflow dynamics — something most general contractors simply don’t offer. Whether it's managing pressure differentials between floors or integrating building automation with legacy systems, I handle every challenge from start to finish with the technical depth that only comes from years working in vertical commercial spaces.
24/7 Emergency Response for Critical Building Failures
While my regular business hours are Monday through Friday from 7am to 5pm, I provide a dedicated 24/7 emergency line specifically for urgent no-heat/no-cool calls. In high-rise buildings where a system failure affects dozens or even hundreds of occupants, timing is everything — and I’ve been there, done that, with countless emergency responses in Chicago's tallest office towers. No call gets left unanswered when your building’s climate control fails, because that kind of urgency demands immediate attention.
Independent Expertise You Can Rely On
I'm not part of a franchise or multi-location chain — I’m James O’Malley, the sole owner and operator of ACCURATE HVAC LLC. This means I make all decisions myself, know every job personally, and maintain full accountability for results. For high-rise installations and maintenance, especially where systems are old, unique, or difficult to source parts for, having one person who truly understands your building’s needs is more valuable than any big-name brand promise. My focus on this niche has made me the go-to expert for many Chicago skyscrapers.
Frequently asked
I specialize in high-rise and skyscraper HVAC systems, including rooftop mechanical units, curtain-wall induction units, window-unit fan-coil systems, and high-rise riser-shaft service carts. My work focuses on complex, large-scale equipment that requires specialized access and technical know-how.
Yes, I provide a dedicated 24/7 emergency hotline for urgent no-heat/no-cool situations in commercial buildings. This ensures that critical HVAC failures in high-rise environments are addressed promptly, even outside of normal business hours. My team is equipped to handle emergencies involving rooftop mechanical-penthouse access platforms or other specialized high-rise equipment.
I’ve been operating ACCURATE HVAC LLC since 2010, which means I have over 16 years of experience in the field. While that’s the length of time my company has been in business, I've also spent additional years working with high-rise systems before launching my own venture.
For high-rise installations and maintenance, I utilize specialized tools like a riser-shaft service cart, curtain-wall induction-unit service rig, rooftop mechanical-penthouse access platform, and window-unit fan-coil balancing kit. These are essential for safely accessing and servicing equipment in tall buildings.