If your AC unit is frozen or covered in ice, it’s not just a minor issue—it can completely stop your system from cooling.
In Houston’s heat and humidity, a frozen AC unit usually means airflow or refrigerant problems that need immediate attention.
Our local technicians diagnose and fix the issue quickly—often the same day.
Same-day service • Honest diagnostics • No upselling • 5-star local technicians
The most common causes we see in Houston homes:
Restricted airflow (dirty air filters or blocked vents)
Low refrigerant or leaks
Frozen evaporator coils
Blower motor issues
Dirty coils reducing heat absorption
👉 Ice on your AC is a symptom—the real problem is inside the system.
We identify the root cause and fix it properly.
A frozen AC unit won’t fix itself—and continuing to run it can cause more damage.
Ice buildup on indoor or outdoor unit
AC not cooling properly
Weak or no airflow from vents
Water leaking as ice melts
System running constantly
🚨 If you see ice, turn the system off and call for service.
Before calling, take these steps:
Turn off your AC system
Switch fan to “ON” to help thaw ice
Check and replace your air filter if needed
👉 This may help temporarily—but the underlying issue still needs repair.
Energy Corridor
Searching for “frozen AC unit near me”? We’re already working in your area.
👉 We arrive fast, diagnose the issue, and fix it correctly.
We Fix — Not Sell
No-pressure diagnostics. No unnecessary replacements.
Same-Day Service
We show up fast and fix it right.
Upfront Pricing
No surprises before work begins.
Local Technicians You Can Trust
Experienced, professional, and honest.
EXCELLENT Based on 149 reviews Posted on Google Farrah LoveTrustindex verifies that the original source of the review is Google. Charles was excellent! Had my capacitor go out at 11pm at night and was desperate for service in this Texas heat, many companies didn’t accommodate late night fixes but I was lucky to land on Modern Air. Will definitely recommend!!Posted on Google Richard DavisTrustindex verifies that the original source of the review is Google. We noticed on waking up on Father’s Day that one of our ACs was out. We called Modern Air and Charles was on our doorstep within the hour. He quickly identified the issue and had our AC up and running again shortly afterwards. Excellent service and such a pleasant person. Wholeheartedly recommend them.Posted on Google James SimTrustindex verifies that the original source of the review is Google. Great servicePosted on Google Ahmed DaffaieTrustindex verifies that the original source of the review is Google. Charles did the great jobPosted on Google George BarnstoneTrustindex verifies that the original source of the review is Google. Charles was punctual, courteous, and professional; all at a very fair price.Posted on Google Rick MounceTrustindex verifies that the original source of the review is Google. I have been doing business with Charles at modern air of Katy for several years now and have never been disappointed. I've had to call him late in the evening for a problem and he was here within 30 minutes no questions asked. Excellent company to do business with and Charles is an amazing technician.Posted on Google Sam RossmannTrustindex verifies that the original source of the review is Google. Charles was amazing. We noticed that our AC stopped cooling around 10:30 PM. After a dozen phone calls to other so called 24/7 HVAC contractors, Charles answered and was at our house in an hour. He diagnosed the issue immediately and put a plan in place to replace the broken part. He got our unit back online the next day. I definitely will recommend Charles and his team repair and service.Posted on Google David CostaTrustindex verifies that the original source of the review is Google. Charlie from Modern Air of Katy did an outstanding job today. Charlie kept me informed on his arrival and provided some great information to address my questions. Charlie completed his service and was very professional. Thank you Charlie!!Posted on Google Matthew FloresTrustindex verifies that the original source of the review is Google. Awesome response time. Fair price and no surprises. Modern Air is my official HVAC company!
A frozen AC unit does NOT usually mean you need a new system.
In most cases, the issue can be repaired quickly.
We only recommend replacement when:
The system is severely damaged
Repair costs don’t make sense
The unit is near end of life
👉 You’ll get honest guidance—not a sales pitch.
Prevent Your AC from Freezing Again
Frozen units are often preventable.
Regular maintenance helps:
Keep airflow unrestricted
Prevent refrigerant issues
Maintain system performance
Ask about our maintenance plans during your visit.
These are the most common AC issues we fix every day in Houston. If you’re experiencing one of these, we can diagnose and fix it—often the same day:
AC Not Cooling – system running but not cooling your home
AC Blowing Warm Air – warm air coming from your vents
Frozen AC Unit – ice buildup on your system
AC Not Turning On – system won’t start at all
AC Leaking Water – water around your unit or ceiling damage
Outside AC Unit Not Running – outdoor system not turning on
Most AC problems can be diagnosed and repaired the same day.
Modern Air of Katy — Fast, Honest AC Repair in Houston