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Expert HVAC repair, installation, and maintenance since 1965
Is Your HVAC System Struggling to Keep Up?
When your heating or cooling system fails, comfort disappears fast. Whether it’s uneven temperatures, rising energy bills, or a sudden breakdown, you need a local HVAC company you can trust — and fast.
Fast, Reliable HVAC Services — Done Right the First Time
Our certified technicians provide complete HVAC repair, installation, and tune-up services to restore comfort and efficiency to your home. We service all makes and models, and every job is backed by our 100% satisfaction guarantee.
- Emergency HVAC Repair Services
- New HVAC System Installation
- Seasonal HVAC Tune-Ups & Maintenance
- Energy-Efficient System Upgrades
Why Homeowners Choose Crystal Heating & Cooling
- Trusted Local Experts: Serving your community for over 50 years.
- Certified Technicians: Trained to diagnose and repair any HVAC brand or model.
- Upfront Pricing: No surprises, just honest quotes before work begins.
- Fast Response: Same-day and emergency service available when you need it most.
- Energy Savings: Optimize your system’s performance and lower utility bills.
Ready to Restore Your Comfort?
Book your HVAC repair, installation, or tune-up with Crystal Heating & Cooling today.
Crystal Heating & Cooling
Serving Missouri and surrounding communities
Licensed • Insured • BBB Accredited
Reviews
Heat Pump Repair in Festus, MO 63028
“First, let me say that I have a VERY old HVAC system. I've had to call Crystal City Heating and Cooling more than a couple of times to keep everything running. And, of course, when I need to.call for repair it is either cold as heck, or the hottest day of the year. I never have to wait long for them to come to the rescue. When I finally do need a new system, it will be through them. Customer service is awesome, and I feel like they are concerned and care about my needs. The techs always explain everything in great detail that I can understand. Cost for service, parts, and repairs seem very fair. I know that I can't really count on my old HVAC system anymore, but I can always count on Crystal City Healing & Cooling to be there when I need them.”
Gas Furnace Repair in Other 63128
“I have a new hi-efficiency furnace and AC unit that was installed last May (2025), and had not needed the Heat mode until last week (late-October), and found it was not working. With the outside air temperatures being relatively mild but trending downward into the upper-60s during the day, needing the furnace was not urgent, and Crystal sent a technician within 48 hrs after my call. He found a ground in the system that affected the furnace but not the AC that had run flawlessly through the recent cooling season. He left after 1.5 hours of unsuccessfully locating the ground, but he "fixed" the controls so the furnace was now working as I had to leave. Several days later another technician came as scheduled and resolved the grounding problem within an hour. Both were well-trained, friendly and relatively young. My house was built in 1977 with Crystal installing the original Carrier brand furnace and AC. I've continued to use Crystal for replacement Carrier equipment in 1998 and in 2025. I rate both the Carrier brand and Crystal's installation and service at the highest 5 star level.”
Reviews
Heat Pump Repair in Festus, MO 63028
“First, let me say that I have a VERY old HVAC system. I've had to call Crystal City Heating and Cooling more than a couple of times to keep everything running. And, of course, when I need to.call for repair it is either cold as heck, or the hottest day of the year. I never have to wait long for them to come to the rescue. When I finally do need a new system, it will be through them. Customer service is awesome, and I feel like they are concerned and care about my needs. The techs always explain everything in great detail that I can understand. Cost for service, parts, and repairs seem very fair. I know that I can't really count on my old HVAC system anymore, but I can always count on Crystal City Healing & Cooling to be there when I need them.”
Gas Furnace Repair in Other 63128
“I have a new hi-efficiency furnace and AC unit that was installed last May (2025), and had not needed the Heat mode until last week (late-October), and found it was not working. With the outside air temperatures being relatively mild but trending downward into the upper-60s during the day, needing the furnace was not urgent, and Crystal sent a technician within 48 hrs after my call. He found a ground in the system that affected the furnace but not the AC that had run flawlessly through the recent cooling season. He left after 1.5 hours of unsuccessfully locating the ground, but he "fixed" the controls so the furnace was now working as I had to leave. Several days later another technician came as scheduled and resolved the grounding problem within an hour. Both were well-trained, friendly and relatively young. My house was built in 1977 with Crystal installing the original Carrier brand furnace and AC. I've continued to use Crystal for replacement Carrier equipment in 1998 and in 2025. I rate both the Carrier brand and Crystal's installation and service at the highest 5 star level.”
Don't wait! Give us a call to schedule your appointment.
Don't wait! Give us a call to schedule your appointment.