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What Counts as an HVAC Emergency?
An HVAC emergency is any heating or cooling failure that threatens your safety or comfort, such as no heat in a Colorado winter, no cooling in extreme summer heat, a gas smell, a carbon monoxide alarm, water leaking from your system, or a burning electrical odor. If you notice any of these, call McCormick right away.
At roughly 4,665 feet in elevation, Greeley weather can change quickly. A furnace outage on a below-zero winter night or an AC outage during a July heat wave is not just uncomfortable. It can become dangerous for children, older adults, and pets. Here's what we treat as a true emergency:
No heat in winter
your furnace, boiler, or heat pump won't fire or won't hold temperature while it's freezing outside.
No cooling in extreme heat
your AC or mini-split has stopped and your home is becoming unsafe, especially for infants, older adults, pets, or anyone with health concerns.
Gas smell or carbon monoxide alarm
leave the home immediately. From outside, call 911 or your gas utility first. Once the home is safe, call McCormick for HVAC inspection or repair.
Active water leaks around a furnace or air handler
shut the system off if it is safe, then call before water damages equipment, flooring, or walls.
Electrical burning smell from the unit
shut the system off and call right away; this is a fire and safety risk.
For non-urgent problems, schedule Greeley AC repair or furnace and heating repair during regular business hours.
What Should I Do While I Wait?
While help is on the way, focus on safety first. If you smell gas or hear a CO alarm, leave the home immediately and call from outside. Don't flip switches or relight anything. For no heat, keep doors and windows closed, open sink cabinets to help protect pipes, and use only approved indoor heaters as directed. Never use an oven, grill, or outdoor heater indoors. For a no-cooling call, hydrate, close blinds, and move to the coolest room.
A few more quick guidelines:
Gas smell or carbon monoxide alarm:
Get everyone out of the house. From a safe location, call 911 or your gas utility first. After the home is cleared, call McCormick to inspect or repair the HVAC system.
No heat:
Open cabinet doors under sinks to let warm air reach pipes, and keep the home as sealed as possible.
No cooling:
Pull shades on sun-facing windows, run fans, and stay hydrated.
Water or burning smell:
Shut the system off at the thermostat or breaker before we arrive.
Still need emergency HVAC help? Call McCormick at (720) 217-4801.
Why Choose McCormick for Emergency HVAC Repairs?
McCormick is a family-owned and operated HVAC company that's served Northern Colorado for 20+ years. For urgent HVAC calls, you get a local team of NATE/EPA-certified technicians based on S 31st Ave. We explain what failed, what it takes to fix it, and what your options are before work begins.
We stand behind every job, from an after-hours repair to a full system installation, and we back our work with manufacturer and labor warranties.
Fast after-hours emergency HVAC service when your system can't wait.
What Areas Does McCormick Serve?
McCormick provides after-hours HVAC repair from our Greeley location at 2881 S 31st Ave, Unit 3, Greeley, CO 80631. We serve homes across Greeley, including west Greeley, downtown, and the UNC area, plus nearby Northern Colorado communities.
Need non-emergency help? See our HVAC installation, repair, and maintenance services in Greeley.
Frequently Asked Questions About Emergency HVAC Services
Don't Tough It Out. Call McCormick Now.
No heat, no AC, or an urgent HVAC safety concern in Greeley? Call McCormick now at (720) 217-4801.
McCormick's local, NATE/EPA-certified team is ready to restore your comfort fast, and we’ll explain your repair options before work begins. After-hours emergency dispatch is $250, plus any approved repair costs. For replacements, ask about estimates and financing.
McCormick Heating & Cooling · 2881 S 31st Ave, Unit 3, Greeley, CO 80631
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