Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC and Sheet Metal Experts in Cary, IL
V.M. O'Leary Sheet Metal & Heating has been a trusted name in the HVAC industry since 1946, serving residential and commercial clients across McHenry County, Lake County, and Northwest Cook County, IL. As a family-owned and operated business, we prioritize exceptional workmanship, reliable solutions, and personalized customer service. Our team of skilled technicians specializes in heating, air conditioning, and custom sheet metal fabrication, offering emergency repairs, routine maintenance, and system installations. With over 75 years of experience, we are committed to delivering energy-efficient solutions that enhance comfort and indoor air quality.Our dedication to customer satisfaction is reflected in our award-winning service, competitive pricing, and free in-home estimates. We stand behind our work with same-day service, planned maintenance agreements, and 24/7 emergency support. Our reputation for honesty and excellence has been built through decades of referrals from satisfied customers who trust us to handle their HVAC needs with professionalism and expertise.
Services
Heating Repair
Air Conditioning Service
Custom Sheet Metal Fabrication
Ductless HVAC Installation
Commercial HVAC
Indoor Air Quality Solutions
Smart Thermostats
Aeroseal Duct Sealing
Maintenance Plans
Emergency HVAC Service
Details
- Year established: 1946
Highlights and features
- Family-owned since 1946 with over 75 years of local HVAC expertise.
- Award-winning service with 24/7 emergency repair availability.
- Skilled technicians trained in the latest HVAC technologies and methods.
- Free in-home estimates and competitive pricing on all services.
- Planned maintenance agreements to ensure system longevity and efficiency.
What people say
Excellent work
Honest service
Great job
Timely efficient
Highly recommend
Services
Heating Installation
Our expert heating installation services ensure optimal performance and energy efficiency for residential and commercial properties. We specialize in modern furnace systems, providing precise installation tailored to your building's needs. With decades of experience, we guarantee reliable solutions that keep your space warm and comfortable year-round.
Air Conditioning Repair
We offer prompt air conditioning repair services for all makes and models, restoring cooling efficiency quickly. Our technicians diagnose issues accurately and perform durable fixes to prevent recurring problems. Regular maintenance ensures your system operates at peak performance, reducing energy costs and extending equipment lifespan.
Custom Sheet Metal Fabrication
Our custom sheet metal fabrication creates durable, precision-crafted components for HVAC systems and architectural applications. Using advanced equipment, we produce ductwork, flashing, and specialized elements to exact specifications. This service enhances system performance and structural integrity for both residential and commercial projects.
Aeroseal Duct Sealing
Aeroseal technology seals air duct leaks from the inside, improving energy efficiency and indoor air quality. This innovative solution reduces energy bills by up to 30% and eliminates hot/cold spots in your space. Our technicians use computer-monitored processes to ensure permanent, effective seals without invasive methods.
Emergency HVAC Service
We provide 24/7 emergency HVAC services to address urgent heating and cooling failures. Our rapid-response team handles critical issues like furnace breakdowns or AC malfunctions, ensuring minimal disruption to comfort and safety. Available year-round for residential and commercial clients in our service areas.
People
Vince O'Leary
President
Vince O'Leary leads the family-owned business with decades of HVAC expertise, continuing his father's legacy since 1946. He emphasizes customer satisfaction through honest service, competitive pricing, and a commitment to using top-quality Bryant equipment. Vince ensures every project meets rigorous standards from start to finish.
Questions
What HVAC services do you offer?
We provide heating, air conditioning, ductless systems, commercial HVAC, custom sheet metal, and Aeroseal duct sealing services for residential and commercial clients.
Are emergency repairs available?
Yes, our 24/7 emergency service addresses urgent HVAC issues in McHenry, Lake, and Northwest Cook Counties.
Do you service all HVAC brands?
We repair and maintain all makes and models of heating and cooling equipment.
Is financing available?
Yes, we offer financing options for new HVAC system installations and replacements.
What areas do you serve?
We serve McHenry County, Lake County, Northwest Cook County, and surrounding areas in Illinois.
What is Aeroseal technology?
Aeroseal is an innovative duct sealing method that permanently seals leaks from inside air ducts, improving energy efficiency and indoor air quality.
