Your AC just died and it's 10 PM on a 95-degree night. I've taken this call hundreds of times since 2018. Here's exactly what to do right now, what you can try yourself before calling, and what emergency repair will cost if you need us.
As an EPA 608 Universal certified technician working under Frosty's TDLR Texas License TACLA126718E, I take after-hours calls personally — not a call center, not a dispatcher in another state. Last July 3rd I answered the phone at 11:47 PM for a Mercer Crossing homeowner in Farmers Branch with a 3-month-old baby and a house already at 86°F. I was on site 18 minutes later, diagnosed a burned contactor, had a replacement on my truck, and the house was cooling before 1 AM. That's the standard: I live in the same neighborhood as the people I serve, and when something breaks at the worst time I show up. Read more about our after-hours approach on our about page.
What Should You Do Right Now If Your AC Stops Working at Night?
The first thing to do is stay calm and try four quick checks that solve about 20% of the emergency calls I get:
1. Check your thermostat. Make sure it's set to COOL (not HEAT, AUTO, or OFF) and the temperature is set at least 3-5 degrees below the current room temp. Replace the batteries if it's a battery-powered unit. I've driven to emergency calls at midnight where the thermostat got bumped to HEAT during cleaning.
2. Check the breaker. Go to your electrical panel and find the breakers labeled HVAC, AC, or AIR HANDLER. If either is tripped (halfway between ON and OFF), flip it fully OFF, wait 30 seconds, then flip it back ON. Power surges during DFW thunderstorms trip HVAC breakers regularly.
3. Check the air filter. A severely clogged filter can freeze the evaporator coil, causing the system to shut down on safety. If the filter is solid grey/black, replace it and set the fan to ON (not AUTO) for 2-4 hours to let the coil thaw.
4. Check the outdoor unit. Make sure nothing is blocking airflow around the condenser — no debris, no shrubs growing against it, no fence panels that fell over. Also verify the disconnect box (the metal box on the wall near the outdoor unit) is in the ON position.
If none of these solve it, you need a technician.
How Much Does Emergency AC Repair Cost?
After-hours emergency repair adds a $250 surcharge ($212.50 for Frosty Club members) on top of the standard flat-rate repair price:
Every flat-rate price below covers the complete repair service — diagnosis by a licensed technician, certified parts, labor, testing, and our workmanship guarantee. These are not part-only prices; they are the total, all-inclusive cost to fully resolve the problem at your home.
Our complete capacitor repair service — diagnosis, licensed technician, certified parts, labor, and our workmanship guarantee — runs $500 ($637.50 for Frosty Club members) — $750. A full contactor repair, covering the service call, diagnosis, parts, labor, and testing, is $600 ($722.50 for Frosty Club members) — $850. For a total condenser fan motor repair — including all parts, labor, system testing, and our guarantee — the flat rate is $650-$2,800 ($765-$2,592.50 for Frosty Club members) — $900-$3,050. The full-service refrigerant recharge + leak fix repair (EPA-certified technician, parts, labor, testing, and warranty) is $350-$1,000 ($510-$1,062.50 for Frosty Club members) — $600-$1,250. Our complete blower motor repair service — diagnosis, licensed technician, certified parts, labor, and our workmanship guarantee — runs $750-$1,500 ($850-$1,487.50 for Frosty Club members) — $1,000-$1,750.
The diagnostic fee ($85, Member: $72.25) is still waived if you approve the repair — even on emergency calls.
Frosty Club members never pay overtime charges. That benefit alone can save $250 on a single emergency call — more than covering the Basic membership cost of $99/yr.
Related: AC Capacitor Failure: The #1 Summer Emergency in DFW.
Is It Safe to Wait Until Morning?
Whether to call for emergency repair or wait depends on two factors: the temperature and who's in the house.
Call now if:
- Indoor temperature is above 85°F and rising
- Anyone in the home has heat-sensitive health conditions (elderly, infants, pregnant, chronic illness)
- You have pets that can't tolerate high heat
- You smell gas or burning from the HVAC system (this is a safety emergency — also call 911 for gas smell)
You can wait until morning if:
- Indoor temperature is below 82°F
- The outdoor temperature drops below 80°F overnight (open windows for cross-ventilation)
- All household members are healthy adults
- You have fans to circulate air
DFW summer nights typically drop to 75-85°F. On nights above 80°F with high humidity, indoor temps can climb to 90°F+ by morning even with windows open. Use your judgment, but err on the side of caution with vulnerable family members.
Related: AC Repair in Farmers Branch: What Homeowners Need to Know.
How Can You Stay Comfortable Until Your AC Is Fixed?
If you're waiting until morning for a repair, these steps will keep you as comfortable as possible:
- Close all blinds and curtains — block radiant heat from any remaining sun and reduce heat gain from warm exterior walls
- Open windows on opposite sides of the house for cross-ventilation (only if outdoor temp is lower than indoor)
- Use box fans or ceiling fans — moving air feels 4-6°F cooler due to wind chill effect
- Stay hydrated — heat exhaustion can begin at indoor temperatures above 80°F, per the CDC
- Use cool, damp towels on pulse points (wrists, neck, ankles)
- Avoid using the oven or stove — they add significant heat to the house
- Move to the lowest floor — heat rises, so the ground floor will be the coolest
How Can You Prevent AC Emergencies?
Most AC emergencies I respond to were preventable with regular maintenance. The capacitor that fails at midnight was showing weakness during the spring tune-up I never got to do. The compressor that died on a 105°F Saturday was low on refrigerant from a slow leak for months.
Prevention strategies:
- Annual tune-up: $150 (Member: $127.50) — catches failing capacitors, low refrigerant, and electrical issues before they become emergencies
- Monthly filter checks: A $10-$25 filter change prevents frozen coils and blower motor strain
- Listen for changes: New noises (grinding, squealing, clicking) mean something is about to fail
Frosty Club Premium ($300/yr) gives you the best emergency protection: 2 included tune-ups, $500 off any repair, 15% off parts, priority scheduling, and no overtime charges. That's peace of mind for $25/month.
Need emergency repair now? Call (469) 254-0548. We serve Farmers Branch, Coppell, Irving, Flower Mound, Lewisville, and Grapevine.
Or request service online for next-day scheduling if you can wait.
Planning ahead? Check our AC Replacement Cost Calculator if your system is aging — a new system ($8,000-$20,000+) with a warranty is cheaper than repeated emergency repairs on dying equipment.
Related Articles
- AC Capacitor Failure: The #1 Summer Emergency in DFW
- AC Repair in Farmers Branch: What Homeowners Need to Know
- Irving AC Repair: Common Issues in Las Colinas and Valley Ranch
Written by Omar Jacobo, EPA 608 Universal Certified Lead Technician at Frosty's HVAC LLC. Family-owned since 2018, 99 Google reviews at 4.9 stars, Texas License TACLA126718E. Serving DFW homeowners with flat-rate pricing and no surprises.
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