Nash Heating & Cooling - Belleville's Professional HVAC Repair
36 Windsor Dr, Belleville, IL 62223
Service Capabilities
- HVAC installation or replacement
- HVAC system repair
About the Company
For over 30 years, Nash Heating & Cooling has been Belleville's trusted local HVAC expert. We understand the unique challenges homeowners face in our climate, from the dangerous risks of carbon monoxide from aging furnaces to the frustration of frozen HVAC components during cold snaps. Our certified technicians provide reliable, year-round service to keep your family safe and comfortable. We focus on preventative maintenance, thorough safety inspections, and fast, effective repairs to address these common local issues head-on. When your system fails, count on your neighbors at Nash for honest advice and solutions that protect your home and your peace of mind.
Frequently Asked Questions
How can I tell if my old Belleville furnace is a carbon monoxide risk?
Common signs include a yellow or flickering burner flame, soot around the furnace, excessive moisture on windows, or a stale, stuffy smell. Most importantly, install CO detectors on every floor. We recommend an annual professional safety inspection from Nash Heating & Cooling. Our technicians check heat exchangers for cracks, test for CO leaks, and ensure proper ventilation—critical steps to protect your family from this silent danger.
Why do my HVAC components keep freezing up in winter?
In our Belleville winters, frozen coils or pipes are often caused by restricted airflow (from dirty filters or blocked vents) or low refrigerant levels. When the system can't absorb heat properly, condensation freezes. Don't just turn it off and wait for a thaw—this can lead to water damage. Call us at Nash. We'll diagnose the root cause, whether it's a simple filter change or a refrigerant leak repair, to prevent recurring freeze-ups and protect your system.
What's the most important HVAC service I should schedule before winter in Belleville?
A comprehensive furnace tune-up and safety inspection is essential. Our local Nash technicians clean critical components, check electrical connections, test the ignition system, and verify safe exhaust venting. This proactive service not only improves efficiency and prevents mid-winter breakdowns but is your best defense against carbon monoxide risks and freeze-related failures. It ensures your system is ready to handle our coldest snaps safely and reliably.
Business Location & Hours
| Mon: | 7:00 AM - 7:00 PM |
| Tue: | 7:00 AM - 7:00 PM |
| Wed: | 7:00 AM - 7:00 PM |
| Thu: | 7:00 AM - 7:00 PM |
| Fri: | 7:00 AM - 7:00 PM |
| Sat: | Closed |
| Sun: | Closed |



















