Our exceptional customer service and lasting results are what sets us apart as a Plumbing & HVAC company in the South Charleston & surrounding areas.
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Emergency? Just Call (304) 744-3221
Expert AC Repair
When you’re looking for the best AC repair in Kanawha Valley, you won’t find a better result than Mullen Plumbing, Heating and Cooling. We’re intentional about doing the job right and leaving you satisfied no matter what. Our knowledgeable and certified technicians can find a solution to any air conditioner problem and always remain professional on the job.

Comprehensive Repairs for All Air Conditioners
We can repair all types and models of air conditioners. We commonly encounter the following challenges:
- AC Troubleshooting: Some signs you need air conditioner repairs, like blowing lukewarm air, can have various causes. Our experts can pinpoint the exact issue and offer the best repair.
- Compressor repair: The compressor pressurizes the refrigerant and helps it transport cold air into your home and hot air outside. When it fails, your air conditioner can’t cool your home.
- Refrigerant issues: Refrigerant acts as the lifeblood of your cooling system. We offer refrigerant leak repair and detection and can refill low levels of the substance.
- Broken components: Your air conditioner contains various components that can break as they age. From blower fan repair to tightening loose wires, we can fix all these components.
- Faulty thermostats: We offer thermostat repair for old, broken, or miscalibrated devices. You can expect your thermostat to last about 10 years.
- Dirty components: Our air filter and coil cleaning service keeps the dirt and debris off your components. Too much buildup can overheat or even destroy your device.
Do you need a type of repair you don’t see on the list? Reach out to us and see how we can help.
Signs You Need Air Conditioner Repairs
How do you know when you need the best AC repair? Call a technician from Mullen Plumbing, Heating and Cooling when you notice any of the following signs.
Rising Energy Bills
Rising energy bills are one long-term sign your air conditioner needs help. When your device experiences wear and tear or needs a minor repair, it will still run but lose efficiency. It will use more fuel to cool your home.
Unless you have an air conditioner over 12 to 15 years old, repairs can lower your energy bills. You may have to install a new air conditioner or replace the older.
Poor Indoor Air Quality
If you’re unhappy with the quality of air coming from your device, repairs can help you obtain crisper and cooler air. Poor indoor air quality includes:
- Lukewarm air blowing from your air conditioner
- Air filled with pollutants that trigger your allergies or create respiratory conditions
- A humidity level over 60%
- Weak airflow
When temperatures approach 90 degrees in your home, you should consider poor indoor air quality a safety issue and call for emergency repairs.
Unusual Sounds and Smells
Your air conditioner shouldn’t emit much odor and should run relatively quietly. If you smell burning, you may have an electrical problem with your device and should turn it off. You may smell mold if your air conditioner hasn’t properly drained its moisture.
You should also call for service if you hear any of the following sounds:
- Banging or clanking
- Rattling or vibrating
- Hissing
- Grinding or screeching
Problems Operating
Call for AC repair if your air conditioner doesn’t turn on or runs constantly. You should also schedule repairs if it turns on and off quickly. Experts call this short cycling, and it frequently results from overheating.
Benefits of Scheduling Prompt Repairs
Some homeowners feel tempted to delay repairs and settle for an air conditioner that delivers subpar performance. However, when you schedule repairs promptly, you obtain several benefits, including:
- Enhanced comfort: When you make repairs, you’ll have better indoor air quality that helps you stay comfortable no matter the temperature outside. You deserve to experience peak comfort in your home.
- Improved safety: If your indoor temperature and humidity rise too high, you put yourself at risk of heat exhaustion. Repairing your device quickly prevents this and reduces your allergy and respiratory issues.
- Longer lifespan: When you ignore repairs, they only grow worse. Eventually, your air conditioner will break before it reaches its life expectancy, but not if you schedule repairs.
- Long-term savings: By keeping your energy bills low and prolonging the life of your air conditioner, prompt repairs save you money in the long term.
Schedule Repairs for Your Air Conditioner Today
Wait to long for our AC Maintenance services? Do you need reliable AC repair to keep you safe and comfortable in the winter? At Mullen Plumbing, Heating and Cooling, our technicians stay current on the latest technology and methods and always render the highest quality service. You’ll appreciate our competitive prices, 24-hour service, and combined experience totaling over 500 years.
Emergency Services
For unforeseen emergencies and fast response needs, please contact Mullen Plumbing, Heating & Cooling as soon as possible at (304) 744-3221.
AC Repair FAQs
Customer: “Why is my air conditioner blowing warm air instead of cold?”
Mullen Tech: “That’s a frustrating problem, I get it. Usually, when your AC blows warm air, it could be due to a few things. You might have a refrigerant leak, which is pretty common and needs fixing right away. Or it could be something simpler, like a dirty air filter that’s blocking airflow. Sometimes, it’s even the thermostat settings—it can get bumped or go a bit wonky. Lets schedule service so we can check those first and see if it’s something we can quickly sort out.”
Customer: “How can I tell if my AC just needs a repair or if it’s time to replace it altogether?”
Mullen Tech: “Good question, and it’s one a lot of people ask. Typically, if you’re hearing weird noises, like grinding or banging, or you’ve noticed a drop in airflow or even some funky smells, those are repair-worthy signs. But, if your AC is over 10 or 15 years old and keeps needing repairs, it might make more sense to look at a replacement. It’s best to schedule an appointment today, so I can walk you through both options once I give it a thorough inspection and let you know what’s best for your situation.”
Customer: “How much is this repair going to cost me? Is it super expensive?”
Mullen Tech: “I understand—unexpected expenses are never fun. It depends on the issue, of course, but typically, repairs around here are mostly common fixes like refrigerant refills or a capacitor replacement. If it’s something major like the compressor, it can run high sometimes. If you want to schedule service now, we’ll take a look today, and I’ll give you an estimate so you know exactly what you’re dealing with. Plus, we have or Advantage Club maintenance plan that can help you save money in the long run. Does that sound good?”
Year-Round Comfort with Exclusive Member Savings
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Learn more? Call (304) 744-3221