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Air conditioner replacement and installation from Crystal Heating & Cooling
Is Your Air Conditioner No Longer Keeping Up?
If your AC is over 10 years old, running constantly, or breaking down often, it may be time for a replacement. Older systems lose efficiency, use more electricity, and cost more to operate — especially during Missouri’s hot summers.
Replacing your air conditioner with a modern, energy-efficient system ensures lasting comfort and lower monthly bills.
Expert AC Installation Done Right the First Time
Our licensed technicians provide complete air conditioner replacement and installation services. We’ll help you select the right system for your home, budget, and comfort needs — then install it with precision for maximum efficiency.
- Full AC Replacement & Installation
- Energy-Efficient Air Conditioners
- Ductwork Adjustments & Custom Sizing
- Same-Day Installation Available
- Manufacturer-Backed Warranties
Every installation is completed to manufacturer standards, ensuring your system delivers reliable cooling for years to come.
Why Homeowners Choose Crystal Heating & Cooling
- Trusted Local Experts: Family-owned and operated since 1965.
- Certified Technicians: Factory-trained and experienced installers.
- Upfront Pricing: Honest quotes with no surprises.
- Fast, Clean Installation: Most systems installed in just one day.
- Flexible Financing: Affordable options for every budget.
Free AC Replacement Consultation
Get expert advice and a no-obligation estimate for your new air conditioning system. We’ll help you choose an energy-efficient model that fits your home and saves you money long-term.
Ask about our financing options and rebates on high-efficiency systems.
Ready to Replace Your Air Conditioner?
Trust Crystal Heating & Cooling for fast, professional AC replacement and installation services near you. Your comfort is our top priority.
Call us TOday for a Free AC Estimate
Crystal Heating & Cooling
AC Replacement & Installation Experts
Serving Festus, MO & Surrounding Areas
Licensed • Insured • BBB A+ Rated • 5-Star Reviews
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.