Sigman Heating & Air Conditioning, Inc.
Sigman Heating & Air Conditioning, Inc. is a HVAC provider serving Belleville, IL. Rated 4.6★ with 122 Google reviews. See services, review signals, and request a quote.
HVACBelleville, IL
On this page
Company overview
- TradeHVAC
- Service areaBelleville, IL
- Google rating4.6★ (122 reviews)
- Phone(618) 234-4343
- Address6200 Old St Louis Rd, Belleville, IL 62223, USA
Photos
Photos from Sigman Heating & Air Conditioning, Inc., Larry J Scott
What customers say
“Sigman has always been able service and help me fix problems with my central ac and heat, as well as my gas boiler/radiator system. Quality work in troubleshooting and professionalism. I’ve experienc…”
“This is the first time I have ever given a poor review. In this case I am compelled to share my experience with others considering to do business with SIGMAN. The techs are mostly qualified. HOWEVER, …”
“What wonderful group young men Zack Sam Joe and Nick that came out and put a new boiler in our house and a old man all day”
“Sigman heating and air is a great company with great employees! Jake came and performed our fall maintenance check and he was awesome! He was very thorough and professional! We highly recommend Jake a…”
“Luke was spectacular, he was informative, polite and professional his first time being at my house. I can be that tough customer but Luke's mannerism and professional attitude made me feel comfortable…”
Key highlights
Strengths
- Highly rated (4.6★ average)
- Large review volume (122 reviews)
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 Sigman Heating & Air Conditioning, Inc. offer?
Sigman Heating & Air Conditioning, Inc. provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Belleville, IL.
What is Sigman Heating & Air Conditioning, Inc.'s rating?
Sigman Heating & Air Conditioning, Inc. has a 4.6 out of 5 star rating based on 122 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 Sigman Heating & Air Conditioning, Inc. 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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