O'Brien Heating & Cooling
O'Brien Heating & Cooling is a HVAC provider serving Waukegan, IL. Rated 4.4★ with 13 Google reviews. See services, review signals, and request a quote.
HVACWaukegan, IL
On this page
Company overview
- TradeHVAC
- Service areaWaukegan, IL
- Google rating4.4★ (13 reviews)
- Phone(847) 662-5136
- Address3128 Sheeler Ave, Waukegan, IL 60085, USA
What customers say
“O'brien heating and cooling is a family owned business. They are very knowledgeable and professional. Fast service, quality work. They installed my new furnace and air conditioning in one day. They to…”
“We recently purchased a home and ran into issues with our humidifier. Joey came out and helped us out. Extremely honest and polite. I wish we could give more than 5 stars. Will be using O'Brien Heatin…”
“Called O'Brien today to have someone come out and look at my boiler to see what the problem was and the owner said he was really busy with it being the first cold wave but he would fit me in and call …”
“Had trouble with the boiler at my home. When i called i told them that it was not an emergency that I just wanted someone to check out why it was more noisy than usual. Responded very quickly and came…”
“Gary is a great guy! Very professional, honest, and explains everything in detail. I've used his company a couple of times, and I've never been disappointed with his work.”
Key highlights
Strengths
Things to ask
- Confirm availability for your area and timeline
- Ask about warranty terms on parts and labor
- Request a written estimate before work begins
- Ask about payment plans or financing
Explore nearby research
Frequently Asked Questions
What services does O'Brien Heating & Cooling offer?
O'Brien Heating & Cooling provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Waukegan, IL.
What is O'Brien Heating & Cooling's rating?
O'Brien Heating & Cooling has a 4.4 out of 5 star rating based on 13 Google reviews.
Is this company licensed in Illinois?
All listed providers have a verified Illinois contractor license at time of publication. You can verify on the Illinois Department of Financial and Professional Regulation (state business registration) plus municipal HVAC licensing (e.g. City of Chicago Department of Buildings) lookup at https://online-dfpr.micropact.com/Lookup/LicenseLookup.aspx.
Does O'Brien Heating & Cooling offer emergency service?
Contact them directly to ask about emergency availability and after-hours service.
How do I request a quote?
Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.
Licensing verified 2026-04-22. Reviews refreshed 2026-04-22.
Licensing data: Illinois Department of Financial and Professional Regulation (state business registration) plus municipal HVAC licensing (e.g. City of Chicago Department of Buildings) · Company data: verified business records + Google Business profile
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