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V.M. Oleary Sheet Metal & Heating

V.M. O'Leary Sheet Metal & Heating has been in operation since 1946. It is a great compliment to us that the majority of our business comes from referrals. Our operating hours are Monday through Friday from 7:00 a.m. to 6:00 p.m. and 8:00 a.m. to 1:00 p.m. on Saturday. We provide free in-home estimates on repairs and new installations.

Emergency Repair Service

The HVAC contractors at our heating and air conditioning company are available 24 hours a day for emergencies. We serve residential and commercial customers in Cary, Crystal Lake, Barrington, Fox River Grove and several other Illinois communities. We dispatch our on-call service technician immediately after speaking to you. We can also schedule an appointment for you during regular business hours if your HVAC concern isn't urgent. We encourage you to call our 24-hour hotline if you suspect a gas leak or your HVAC system isn't working at all.

New Installations

Our HVAC contractors are skilled at helping people choose a new heating or cooling system that perfectly meets their needs. We instruct you on how to evaluate energy efficiency ratings and care for your new HVAC system after installation.

Preventative Maintenance

V.M. O'Leary Sheet Metal & Heating can't stress enough the importance of regular professional tune-ups for your HVAC system. Our HVAC contractors work from a detailed checklist to make sure that every part of your heating and cooling equipment is inspected. We fix minor issues on the spot or schedule another appointment if your HVAC system needs more extensive repairs.

Work with a Bryant Factory Authorized Dealer

Bryant is a highly respected manufacturing company that accepts only the best heating and air conditioning companies into its factory authorized dealer program. V.M. O'Leary Sheet Metal & Heating has high customer satisfaction ratings, valuable services and highly skilled service technicians. These are all qualities that Bryant requires for its factory authorized dealer program. We are happy to be among the five percent of HVAC contractors nationwide to be recognized as a Bryant factory authorized dealer.


Bryant Medal of Excellence


NATE Certified Building Performance Institute Puron