Business Details
43 Years
experience
Emergency
services
Your Trusted HVAC Partner in Schaumburg, IL
Corcoran Heating & Air Conditioning Heating and Air Conditioning has been a trusted name in HVAC services since 1983, founded on the principles of integrity, expertise, and customer-centric solutions. As a family-owned business, we combine decades of hands-on experience with cutting-edge technology to deliver superior heating, ventilation, and air conditioning systems for residential and commercial clients. Our NCI- and NATE-certified technicians prioritize energy efficiency, safety, and comfort, ensuring every project meets rigorous industry standards.We specialize in system diagnostics, performance testing, and tailored maintenance programs to optimize equipment longevity and reduce utility costs. Our commitment to transparency, ethical practices, and environmental responsibility has earned us a reputation as Chicagoland's premier HVAC partner for over 40 years.
Services
Furnace Repair
AC Maintenance
Boiler Services
Commercial HVAC
Emergency Repairs
System Replacement
Duct Testing
Carbon Monoxide Testing
Ventilation Solutions
Preventive Maintenance
Details
- Year established: 1983
Highlights and features
- We offer 24/7 emergency HVAC services for urgent needs
- Our technicians are NCI- and NATE-certified industry leaders
- We guarantee performance testing with documented efficiency improvements
- Family-owned with 40+ years of local market expertise
- We provide energy-saving solutions that reduce utility costs by up to 30%
Associations and certifications
- NCI
- NATE
What people say
Professional technicians
24/7 emergency service
Energy savings guaranteed
Detailed diagnostics
Family-owned integrity
Services
Furnace Repair
Our certified technicians diagnose and repair all furnace types, ensuring optimal performance and safety. We use calibrated equipment for combustion analysis and carbon monoxide testing. Emergency services available 24/7 with upfront pricing and satisfaction guarantees.
AC Maintenance
Seasonal maintenance programs include performance testing, coil cleaning, and refrigerant checks. Our NCI-certified process extends equipment life and reduces energy costs by up to 25%. Priority scheduling for agreement holders.
Commercial HVAC
Full-service solutions for restaurants, offices, and industrial spaces. Specializing in kitchen ventilation, rooftop unit maintenance, and test & balance certification. 24/7 emergency support with commercial-specific diagnostics.
System Replacement
Custom load calculations and system modeling ensure proper sizing. We install ENERGY STAR-rated furnaces, boilers, and mini-splits with performance guarantees. Financing options available for qualified customers.
Duct Testing
Comprehensive pressure testing identifies leaks and inefficiencies. Our PerformanceMaxx reports document delivered BTUs and airflow metrics. Recommended for homes with uneven temperatures or high utility bills.
People
Tom Corcoran
Owner/Service Manager
HVAC industry veteran with 35+ years experience. Developed proprietary performance testing methods. Leads technical training and quality control. Holds multiple certifications including NCI Master Analyst.
John Corcoran
Vice President
Second-generation HVAC expert with University of Kansas business degree. Specializes in system design and digital diagnostics. Manages technology integration and client education programs.
Brenda Murphy
Office Manager
BS in Biological Sciences with 20+ years HVAC operations experience. Coordinates scheduling, billing, and client communications. Certified in HVAC business management systems.
Paul S.
Service Technician
ETI-trained HVACR specialist with 17 years field experience. NATE-certified in air conditioning and heating. Focuses on residential diagnostics and preventive maintenance.
Mike W.
Installation Technician
Residential/commercial installer since 2001. Harper College HVAC graduate with National Certification. Expert in ductless mini-split systems and commercial retrofit projects.
Questions
Do you offer 24/7 emergency HVAC service?
Yes, we provide 24/7/365 emergency response with technicians on call after hours. Simply press extension 2 for immediate assistance.
What HVAC maintenance plans are available?
Our PerformanceMaxx™ maintenance programs include seasonal performance testing, priority scheduling, and 15% repair discounts. Customizable for residential and commercial needs.
How do you handle complex system diagnostics?
We use calibrated equipment for airflow testing, combustion analysis, and BTU measurement. Performance reports document system efficiency with actionable improvement recommendations.
Are financing options available for equipment replacement?
Yes, we offer flexible financing programs for qualified customers on new HVAC installations and major repairs.
What areas do you service?
We serve all Chicagoland suburbs including Barrington, Winnetka, Lake Forest, and Schaumburg for residential and commercial HVAC needs.
Do you work with commercial kitchen ventilation systems?
Yes, we specialize in commercial kitchen HVAC including CaptiveAire systems, makeup air units, and test & balance certification for restaurants and food service operations.
Videos
Reviews (6)
Saket Khemka
Nov 24, 2020
Report
Here is how they operate - I called them to get the furnace checked. They asked me that the cost would be $89 for the check-up and if I would like to go ahead with the repair, that would absorbed in the repair cost. So, they came to inspect right on time (that's the good part). After they inspected, they told be that the repair would cost me somewhere between $800-1000. Since, it would have made sense to get the furnace replace rather than pay that high amount, I tried to decline the repair.
They mentioned, if I decline, I would need to pay them $240 for the check-up! WHY? Because they said the diagnosis took them more time than they thought. That is not my fault! Also, they told me to make the decision within few minutes because the check-up cost would go up every 15 minutes. I had NO option left but to go ahead with the repair service rather than take some time to evaluate the option. Never again!
They mentioned, if I decline, I would need to pay them $240 for the check-up! WHY? Because they said the diagnosis took them more time than they thought. That is not my fault! Also, they told me to make the decision within few minutes because the check-up cost would go up every 15 minutes. I had NO option left but to go ahead with the repair service rather than take some time to evaluate the option. Never again!
Tscale
Feb 02, 2020
Report
Would highly recommend the guys at Corcoran. They did work at my office and shop which included re-balancing air flow within each room. They took a highly technical approach and then did several mods on our existing system to make it all work much better than it every has. Corcoran did not do the original install, but I wish they had because they really known their stuff. Not to mention timely and professional as well.
Nick Zeppetello
Feb 19, 2019
Report
Awesome Family Owned Company. Fixed a vent issue I have been putting up with since I bought the house. Looked at my furnace and vents and now my house is warmer and the heat kicks on less which I'm going to assume will save me money. I actually retired the space heater! Tom the owner also saw an issue with my water heater and carbon monoxide after he packed his gear up, and insisted that he fix the issue for my families safety. Charged me more then a fair price and possibly saved my life? Give Corcoran Heating a Call! They give you a much more personalized service then these national franchises. Couldn't be Happier!
Mike Lovda
Nov 24, 2017
Report
On-time, professional, courteous, no upselling, explained situation and what repairs were completed. Despite number of HVAC repairmen choices in area, I will definitely use Corcoran in future again if/when needed. would highly recommend to anyone in need of HVAC services. -Mike
Nick Zeppetello
Dec 04, 2016
Report
Its great to find a Family owned company that offers such great service from the first call to the maintenance appointments! John has offered me valuable advice which has kept my furnace running smoothly for years. Every HVAC technician they sent has been friendly and professional. I would never call anyone else for my heating repair needs. Thanks for being Great!
Mike Sobel
Nov 03, 2016
Report
Not always the best service to have done, but when you are happy with it, the service must have been GREAT. I have to commend Tom (he worked on my home and business), he was very courteous and very knowledgeable. He even took the time to explain everything he was doing for me. I'll be using these guys in the future for maintenance and any service. THANK YOU!
