Barnhart Heating & Cooling
Barnhart Heating & Cooling is a HVAC provider serving Granite City, IL. Rated 4.6★ with 36 Google reviews. See services, review signals, and request a quote.
HVACGranite City, IL
On this page
Company overview
- TradeHVAC
- Service areaGranite City, IL
- Google rating4.6★ (36 reviews)
- Phone(618) 451-7425
- Address2535 Edison Ave, Granite City, IL 62040, USA
What customers say
“Derek and his team at Barnhart Heating & Cooling were fantastic. They had a fast response time and made it out to my home quickly to clean my furnace. I had several questions about the overall strengt…”
“Called Derek this morning to look at our son's furnace. He went out within a few hours (happened to be in the neighborhood). Our son couldn't say enough positive things about how helpful they were. …”
“This company is awesome!! Our furnace went out and they came the same day!!! They are very knowledgeable and so thorough. They also care which is important. Kameron and Derek awesome. Will definitely …”
“He was amazing at first... then it got funny. We had a gas leak emergency on piping and coming from the furnace that thos company serviced a year prior to me purchasing the home. He came out swiftly, …”
“Very helpful group of guys. Derek took the time to educate me on furnace maintenance as a new home owner when he absolutely did not need to take the time to do that. Will absolutely be using them goin…”
Key highlights
Strengths
- Highly rated (4.6★ average)
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 Barnhart Heating & Cooling offer?
Barnhart Heating & Cooling provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Granite City, IL.
What is Barnhart Heating & Cooling's rating?
Barnhart Heating & Cooling has a 4.6 out of 5 star rating based on 36 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 Barnhart 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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