Sigman Heating & Air Conditioning, Inc. provides HVAC service, maintenance, and installation for homes and small businesses, including work on AC, furnaces, and boilers. Appointments are available on weekdays, and the office can coordinate diagnostics, routine tune-ups, and quotes for replacements.
Local presence, clear scheduling during weekday hours, and technicians familiar with both forced-air and boiler systems. The company website offers details on services and contact options for estimates and maintenance.
Serving Belleville, IL and nearby Metro East communities in St. Clair County and surrounding areas.
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Heating and cooling diagnostics, seasonal maintenance, repair of central AC and furnaces, boiler service, system replacement quotes, and light commercial HVAC service.
Recent reviews often highlight technicians’ professionalism, clear communication, and thorough seasonal maintenance. Several customers mentioned positive experiences with specific techs and successful boiler and AC service. There is at least one review noting planning or coordination issues on a new construction job, suggesting experiences can vary. Overall ratings trend positive with many remarks about respectful, informative service.
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, when the owner wrote up my job they received incorrect information from him and were not clear on what to install and how based on the agreed and signed contract (new construction) with the Sigman owner. Too many mistakes requiring too much rework mostly with the ductwork in the unconditioned spaces and bathroom fans. Following completion, on a geothermal 3 zone system, dampers repeatedly failed and the owner failed to respond and service them. On the third failure of the Honeywell dampers (now three years into it) I learned they were known to have failure issues. After 7 months of waiting the Sigman owner has still failed to return communication and own the problem that was still covered under warranty. Read the reviews, there are many bad ones. Joel Sigman is ill equipped to lead his team. He promises the world and is incapable of delivering on his promises. He states "I forgot" as though that is an acceptable response. When things go wrong, he makes more promises to take care of them and still nothing happens. Repeat, Repeat. If you are shopping price, he will beat anyone else's but you will get what you pay for. Save your self the aggravation and pay a little more to go with an HVAC company that has a solid reputation for doing high quality work and standing behind it. I finally called another HVAC company with outstanding reviews and literally no bad reviews. They not only explained why I should not want Honeywell dampers vs another better rated system, scheduled the work and came out within a few days to take care of it. All is resolved, the system works much better and my out of pocket was minimal.
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 experience great service and definitely respect and appreciate Sam who’s been out multiple times to do work for us. Thanks
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
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 with a stranger in my house. Thanks Luke hope see you in the spring.
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 and Sigman heating and air for your HVAC needs!
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