HVAC Contractor.
| Monday | 8:00 am - 6:00 pm |
|---|---|
| Tuesday | 8:00 am - 6:00 pm |
| Wednesday | 8:00 am - 6:00 pm |
| Thursday | 8:00 am - 6:00 pm |
| Friday | 8:00 am - 6:00 pm |
| Saturday | 9:00 am - 12:00 pm |
From Google, checked May 2026.
Your local company for all things HVAC, insulation, and plumbing! Serving the Alton area with dedication, we pride ourselves on offering services that are not only cheaper than our competitors but also fairly priced. With Janssen Heating and Cooling, you get competitive pricing without compromising on quality. Choose us for reliable, cost-effective solutions for your home.
The business's own words from its Google listing, checked Oct 2026.
The business's own words from its Google listing, checked Oct 2026.
Knowledgeable, friendly, terrific pricing and incredibly responsive. Mr. Janssen waa able to help me twice in a week for three issues that came up while preparing my house for sale. I have enthusiastically recommended him to my fellow workers, friends and will continue to call upon his services as needed.
Absolute perfection from start to finish. We had a stressful utility issue today, and the technician who arrived handled it with the utmost professionalism, precision, and care. He quickly diagnosed the problem, explained the resolution clearly, and executed the repair flawlessly. His technical expertise is matched only by his stellar customer service. It’s incredibly rare to find someone this reliable, intelligent, and dedicated to their craft. If you want the job done safely and correctly the first time, this is the professional you want on the job. Highest possible recommendation! ⭐⭐⭐⭐⭐
Steve came out promptly after our AC was giving us issues during a heat wave. He was quick to diagnose and fix the issue and was very professional. Would recommend to friends and family!